Service Manual2007 Captiva TROUBLE CODE DIAGNOSIS

Captiva

TROUBLE CODE DIAGNOSIS

Diagnostic Trouble Code (DTC) Type Definitions

Emissions Related DTCs

Action Taken When the DTC Sets - Type A

The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.

Action Taken When the DTC Sets - Type E

The control module illuminates the MIL on the second consecutive ignition cycle that the diagnostic runs and fails.

Conditions for Clearing the MIL/DTC - Type A or Type E

The control module turns OFF the MIL after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
A current DTC Last Test Failed clears when the diagnostic runs and passes.
Use a scan tool in order to clear the MIL and the DTC.

Non-Emissions Related DTCs

Action Taken When the DTC Sets - Type C

The control module stores the DTC information into memory when the diagnostic runs and fails.
The Service Vehicle Soon (SVS) Lamp will be illuminated as soon as the error occurs.
The driver information center, if equipped, may display a message.

Conditions for Clearing the DTC - Type C

A last test failed, or active DTC, clears when the diagnostic runs and passes.
Use a scan tool in order to clear the DTC.

Diagnostic Trouble Codes

DTC	Description	Error Type	Illunminate MIL	Illunminate SVS
P0008	Engine Position System Performance Bank 1	E	YES	NO
P0009	Engine Position System Performance Bank 2	E	YES	NO
P0010	Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 1	E	YES	NO
P0011	Intake Camshaft Position (CMP) System Performance Bank 1	E	YES	NO
P0013	Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 1	E	YES	NO
P0014	Exhaust Camshaft Position (CMP) System Performance Bank 1	E	YES	NO
P0016	Crankshaft Position (CKP)-Intake Camshaft Position (CMP) Correlation Bank 1	E	YES	NO
P0017	Crankshaft Position (CKP)-Exhaust Camshaft Position (CMP) Correlation Bank 1	E	YES	NO
P0018	Crankshaft Position (CKP)-Intake Camshaft Position (CMP) Correlation Bank 2	E	YES	NO
P0019	Crankshaft Position (CKP)-Exhaust Camshaft Position (CMP) Correlation Bank 2	E	YES	NO
P0020	Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 2	E	YES	NO
P0021	Intake Camshaft Position (CMP) System Performance Bank 2	E	YES	NO
P0023	Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 2	E	YES	NO
P0024	Exhaust Camshaft Position (CMP) System Performance Bank 2	E	YES	NO
P0030	HO2S Heater Control Circuit Bank 1 Sensor 1	E	YES	NO
P0031	HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 1	E	YES	NO
P0032	HO2S Heater Control Circuit High Voltage Bank 1 Sensor 1	E	YES	NO
P0036	HO2S Heater Control Circuit Bank 1 Sensor 2	E	YES	NO
P0037	HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 2	E	YES	NO
P0038	HO2S Heater Control Circuit High Voltage Bank 1 Sensor 2	E	YES	NO
P0040	HO2S Signals Swapped Banks 1 and 2 Sensor 1	E	YES	NO
P0041	HO2S Signals Swapped Banks 1 and 2 Sensor 2	E	YES	NO
P0050	HO2S Heater Control Circuit Bank 2 Sensor 1	E	YES	NO
P0051	HO2S Heater Control Circuit Low Voltage Bank 2 Sensor 1	E	YES	NO
P0052	HO2S Heater Control Circuit High Voltage Bank 2 Sensor 1	E	YES	NO
P0053	HO2S Heater Resistance Bank 1 Sensor 1	A	YES	NO
P0056	HO2S Heater Control Circuit Bank 2 Sensor 2	E	YES	NO
P0057	HO2S Heater Control Circuit Low Voltage Bank 2 Sensor 2	E	YES	NO
P0058	HO2S Heater Control Circuit High Voltage Bank 2 Sensor 2	E	YES	NO
P0059	HO2S Heater Resistance Bank 2 Sensor 1	A	YES	NO
P0068	Throttle Body Airflow Performance	A	YES	NO
P0100	Mass Air Flow (MAF) Sensor Circuit	E	YES	NO
P0101	Mass Air Flow (MAF) Sensor Performance	E	YES	NO
P0102	Mass Air Flow (MAF) Sensor Circuit Low Voltage	E	YES	NO
P0103	Mass Air Flow (MAF) Sensor Circuit High Voltage	E	YES	NO
P0111	Intake Air Temperature (IAT) Sensor Performance	E	YES	NO
P0112	Intake Air Temperature (IAT) Sensor Circuit Low Voltage	E	YES	NO
P0113	Intake Air Temperature (IAT) Sensor Circuit High Voltage	E	YES	NO
P0116	Engine Coolant Temperature (ECT) Sensor Performance	E	YES	NO
P0117	Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage	E	YES	NO
P0118	Engine Coolant Temperature (ECT) Sensor Circuit High Voltage	E	YES	NO
P0121	Throttle Position (TP) Sensor 1 Performance	E	YES	NO
P0122	Throttle Position (TP) Sensor 1 Circuit Low Voltage	E	YES	NO
P0123	Throttle Position (TP) Sensor 1 Circuit High Voltage	E	YES	NO
P0125	Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control	E	YES	NO
P0128	Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature	E	YES	NO
P0130	HO2S Circuit Bank 1 Sensor 1	E	YES	NO
P0131	HO2S Circuit Low Voltage Bank 1 Sensor 1	E	YES	NO
P0132	HO2S Circuit High Voltage Bank 1 Sensor 1	E	YES	NO
P0133	HO2S Slow Response Bank 1 Sensor 1	E	YES	NO
P0135	HO2S Heater Performance Bank 1 Sensor 1	E	YES	NO
P0137	HO2S Circuit Low Voltage Bank 1 Sensor 2	E	YES	NO
P0138	HO2S Circuit High Voltage Bank 1 Sensor 2	E	YES	NO
P0140	HO2S Circuit Insufficient Activity Bank 1 Sensor 2	E	YES	NO
P0141	HO2S Heater Performance Bank 1 Sensor 2	E	YES	NO
P0150	HO2S Circuit Bank 2 Sensor 1	E	YES	NO
P0151	HO2S Circuit Low Voltage Bank 2 Sensor 1	E	YES	NO
P0152	HO2S Circuit High Voltage Bank 2 Sensor 1	E	YES	NO
P0153	HO2S Slow Response Bank 2 Sensor 1	E	YES	NO
P0155	HO2S Heater Performance Bank 2 Sensor 1	E	YES	NO
P0157	HO2S Circuit Low Voltage Bank 2 Sensor 2	E	YES	NO
P0158	HO2S Circuit High Voltage Bank 2 Sensor 2	E	YES	NO
P0160	HO2S Circuit Insufficient Activity Bank 2 Sensor 2	E	YES	NO
P0161	HO2S Heater Performance Bank 2 Sensor 2	E	YES	NO
P0196	Engine Oil Temperature (EOT) Sensor Performance	E	YES	NO
P0197	Engine Oil Temperature (EOT) Sensor Circuit Low Voltage	E	YES	NO
P0198	Engine Oil Temperature (EOT) Sensor Circuit High Voltage	E	YES	NO
P0201	Injector 1 Control Circuit	E	YES	NO
P0202	Injector 2 Control Circuit	E	YES	NO
P0203	Injector 3 Control Circuit	E	YES	NO
P0204	Injector 4 Control Circuit	E	YES	NO
P0205	Injector 5 Control Circuit	E	YES	NO
P0206	Injector 6 Control Circuit	E	YES	NO
P0219	Engine Overspeed	A	YES	NO
P0221	Throttle Position (TP) Sensor 2 Performance	E	YES	NO
P0222	Throttle Position (TP) Sensor 2 Circuit Low Voltage	E	YES	NO
P0223	Throttle Position (TP) Sensor 2 Circuit High Voltage	E	YES	NO
P0261	Injector 1 Control Circuit Low Voltage	E	YES	NO
P0262	Injector 1 Control Circuit High Voltage	E	YES	NO
P0264	Injector 2 Control Circuit Low Voltage	E	YES	NO
P0265	Injector 2 Control Circuit High Voltage	E	YES	NO
P0267	Injector 3 Control Circuit Low Voltage	E	YES	NO
P0268	Injector 3 Control Circuit High Voltage	E	YES	NO
P0270	Injector 4 Control Circuit Low Voltage	E	YES	NO
P0271	Injector 4 Control Circuit High Voltage	E	YES	NO
P0273	Injector 5 Control Circuit Low Voltage	E	YES	NO
P0274	Injector 5 Control Circuit High Voltage	E	YES	NO
P0276	Injector 6 Control Circuit Low Voltage	E	YES	NO
P0277	Injector 6 Control Circuit High Voltage	E	YES	NO
P0300	Engine Misfire Detected	E	YES	NO
P0301	Cylinder 1 Misfire Detected	E	YES	NO
P0302	Cylinder 2 Misfire Detected	E	YES	NO
P0303	Cylinder 3 Misfire Detected	E	YES	NO
P0304	Cylinder 4 Misfire Detected	E	YES	NO
P0305	Cylinder 5 Misfire Detected	E	YES	NO
P0306	Cylinder 6 Misfire Detected	E	YES	NO
P0324	Knock Sensor (KS) Module Performance	C	NO	YES
P0327	Knock Sensor (KS) Circuit Low Voltage Bank 1	C	NO	YES
P0328	Knock Sensor (KS) Circuit High Voltage Bank 1	C	NO	YES
P0332	Knock Sensor (KS) Circuit Low Voltage Bank 2	C	NO	YES
P0333	Knock Sensor (KS) Circuit High Voltage Bank 2	C	NO	YES
P0335	Crankshaft Position (CKP) Sensor Circuit	A	YES	NO
P0336	Crankshaft Position (CKP) Sensor Performance	A	YES	NO
P0337	Crankshaft Position (CKP) Sensor Circuit Low Duty Cycle	A	YES	NO
P0338	Crankshaft Position (CKP) Sensor Circuit High Duty Cycle	A	YES	NO
P0341	Intake Camshaft Position (CMP) Sensor Performance Bank 1	E	YES	NO
P0342	Intake Camshaft Position (CMP) Sensor Circuit Low Voltage Bank 1	E	YES	NO
P0343	Intake Camshaft Position (CMP) Sensor Circuit High Voltage Bank 1	E	YES	NO
P0346	Intake Camshaft Position (CMP) Sensor Performance Bank 2	E	YES	NO
P0347	Intake Camshaft Position (CMP) Sensor Circuit Low Voltage Bank 2	E	YES	NO
P0348	Intake Camshaft Position (CMP) Sensor Circuit High Voltage Bank 2	E	YES	NO
P0350	Ignition Coil Control Circuit	E	YES	NO
P0351	Ignition Coil 1 Control Circuit	E	YES	NO
P0352	Ignition Coil 2 Control Circuit	E	YES	NO
P0353	Ignition Coil 3 Control Circuit	E	YES	NO
P0354	Ignition Coil 4 Control Circuit	E	YES	NO
P0355	Ignition Coil 5 Control Circuit	E	YES	NO
P0356	Ignition Coil 6 Control Circuit	E	YES	NO
P0366	Crankshaft Position (CKP) Sensor Performance	E	YES	NO
P0367	Exhaust Camshaft Position (CMP) Sensor Circuit Low Voltage Bank 1	E	YES	NO
P0368	Exhaust Camshaft Position (CMP) Sensor Circuit High Voltage Bank 1	E	YES	NO
P0391	Exhaust Camshaft Position (CMP) Sensor Performance Bank 2	E	YES	NO
P0392	Exhaust Camshaft Position (CMP) Sensor Circuit Low Voltage Bank 2	E	YES	NO
P0393	Exhaust Camshaft Position (CMP) Sensor Circuit High Voltage Bank 2	E	YES	NO
P0420	Catalyst System Low Efficiency Bank 1	E	YES	NO
P0430	Catalyst System Low Efficiency Bank 2	E	YES	NO
P0443	Evaporative Emission (EVAP) Purge Solenoid Control Circuit	E	YES	NO
P0451	Fuel Tank Pressure (FTP) Sensor Performance	E	YES	NO
P0452	Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage	E	YES	NO
P0453	Fuel Tank Pressure (FTP) Sensor Circuit High Voltage	E	YES	NO
P0458	Evaporative Emission (EVAP) Purge Solenoid Control Circuit Low Voltage	E	YES	NO
P0459	Evaporative Emission (EVAP) Purge Solenoid Control Circuit High Voltage	E	YES	NO
P0460	Fuel Level Sensor Circuit	E	YES	NO
P0461	Fuel Level Sensor 1 Performance	E	YES	NO
P0462	Fuel Level Sensor 1 Low Voltage	E	YES	NO
P0463	Fuel Level Sensor 1 High Voltage	E	YES	NO
P0480	Low Speed Cooling Fan Relay Control Circuit	E	YES	NO
P0481	High Speed Cooling Fan Relay Control Circuit	E	YES	NO
P0500	Vehicle Speed Sensor (VSS) Circuit	E	YES	NO
P0506	Idle Speed Low	E	YES	NO
P0507	Idle Speed High	E	YES	NO
P0513	Theft Deterrent Key Incorrect	E	YES	NO
P0521	Engine Oil Pressure (EOP) Sensor Performance	C	NO	YES
P0522	Engine Oil Pressure (EOP) Sensor Circuit Low Voltage	C	NO	YES
P0523	Engine Oil Pressure (EOP) Sensor Circuit High Voltage	C	NO	YES
P0532	Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit Low Voltage	E	YES	NO
P0533	Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit High Voltage	E	YES	NO
P0560	System Voltage Performance	C	NO	YES
P0562	System Voltage Low	C	NO	YES
P0563	System Voltage High	C	NO	YES
P0571	Brake Switch Circuit 1	C	NO	YES
P0601	Control Module Read Only Memory (ROM)	A	YES	NO
P0602	Control Module Not Programmed	A	YES	NO
P0604	Control Module Random Access Memory (RAM)	A	YES	NO
P0606	Control Module Internal Performance	A	YES	NO
P0615	Starter Relay Control Circuit	E	YES	NO
P0616	Starter Relay Control Circuit Low Voltage	E	YES	NO
P0617	Starter Relay Control Circuit High Voltage	E	YES	NO
P0625	Generator F-Terminal Circuit Low Voltage	C	NO	YES
P0626	Generator F-Terminal Circuit High Voltage	C	NO	YES
P0627	Fuel Pump Relay Control Circuit Open	E	YES	NO
P0628	Fuel Pump Relay Control Circuit Low Voltage	E	YES	NO
P0629	Fuel Pump Relay Control Circuit High Voltage	E	YES	NO
P0633	Theft Deterrent Key Not Programmed	E	YES	NO
P0638	Throttle Actuator Control (TAC) Command Performance	A	YES	NO
P0645	Air Conditioning (A/C) Clutch Relay Control Circuit	E	YES	NO
P0646	Air Conditioning (A/C) Clutch Relay Control Circuit Low Voltage	E	YES	NO
P0647	Air Conditioning (A/C) Clutch Relay Control Circuit High Voltage	E	YES	NO
P0650	Malfunction Indicator Lamp (MIL) Control Circuit	E	YES	NO
P0685	Engine Controls Ignition Relay Control Circuit	E	YES	NO
P0686	Engine Controls Ignition Relay Control Circuit Low Voltage	E	YES	NO
P0687	Engine Controls Ignition Relay Control Circuit High Voltage	E	YES	NO
P0688	Engine Controls Ignition Relay Feedback Circuit	E	YES	NO
P0689	Engine Controls Ignition Relay Feedback Circuit Low Voltage	E	YES	NO
P0690	Engine Controls Ignition Relay Feedback Circuit High Voltage	E	YES	NO
P0691	Cooling Fan Relay 1 Control Circuit Low Voltage	E	YES	NO
P0692	Cooling Fan Relay 1 Control Circuit High Voltage	E	YES	NO
P0693	Cooling Fan Relay 2 Control Circuit Low Voltage	E	YES	NO
P0694	Cooling Fan Relay 2 Control Circuit High Voltage	E	YES	NO
P0700	Transmission Control Module (TCM) Requested MIL Illumination	A	YES	NO
P0704	Clutch Switch Circuit	C	NO	YES
P1011	Intake Camshaft Position (CMP) Actuator Park Position Bank 1	C	NO	YES
P1012	Exhaust Camshaft Position (CMP) Actuator Park Position Bank 1	C	NO	YES
P1013	Intake Camshaft Position (CMP) Actuator Park Position Bank 2	C	NO	YES
P1014	Exhaust Camshaft Position (CMP) Actuator Park Position Bank 2	C	NO	YES
P1258	Engine Coolant Overtemperature - Protection Mode Active	E	YES	NO
P1551	Throttle Valve Rest Position Not Reached During Learn	A	YES	NO
P1629	Theft Deterrent Fuel Enable Signal Not Received	E	YES	NO
P1631	Theft Deterrent Fuel Enable Signal Not Correct	C	NO	YES
P1632	Theft Deterrent Fuel Disable Signal Received	E	YES	NO
P1648	Theft Deterrent Security Code Incorrect	E	YES	NO
P1649	Theft Deterrent Security Code Not Programmed	C	NO	YES
P1668	Generator L-Terminal Control Circuit	C	NO	YES
P2008	Intake Manifold Runner Control (IMRC) Solenoid Control Circuit	E	YES	NO
P2009	Intake Manifold Runner Control (IMRC) Solenoid Control Circuit Low Voltage	E	YES	NO
P2010	Intake Manifold Runner Control (IMRC) Solenoid Control Circuit High Voltage	E	YES	NO
P2065	Fuel Level Sensor 2 Circuit	E	YES	NO
P2066	Fuel Level Sensor 2 Performance	E	YES	NO
P2067	Fuel Level Sensor 2 Circuit Low Voltage	E	YES	NO
P2068	Fuel Level Sensor 2 Circuit High Voltage	E	YES	NO
P2076	Intake Manifold Tuning (IMT) Valve Position Sensor Performance	E	YES	NO
P2077	Intake Manifold Tuning (IMT) Valve Position Sensor Circuit Low Voltage	E	YES	NO
P2078	Intake Manifold Tuning (IMT) Valve Position Sensor Circuit High Voltage	E	YES	NO
P2088	Intake Camshaft Position Actuator Solenoid Control Circuit Low Voltage Bank 1	E	YES	NO
P2089	Intake Camshaft Position Actuator Solenoid Control Circuit High Voltage Bank 1	E	YES	NO
P2090	Exhaust Camshaft Position Actuator Solenoid Control Circuit Low Voltage Bank 1	E	YES	NO
P2091	Exhaust Camshaft Position Actuator Solenoid Control Circuit High Voltage Bank 1	E	YES	NO
P2092	Intake Camshaft Position Actuator Solenoid Control Circuit Low Voltage Bank 2	E	YES	NO
P2093	Intake Camshaft Position Actuator Solenoid Control Circuit High Voltage Bank 2	E	YES	NO
P2094	Exhaust Camshaft Position Actuator Solenoid Control Circuit Low Voltage Bank 2	E	YES	NO
P2095	Exhaust Camshaft Position Actuator Solenoid Control Circuit High Voltage Bank 2	E	YES	NO
P2096	Post Catalyst Fuel Trim System Low Limit Bank 1	E	YES	NO
P2097	Post Catalyst Fuel Trim System High Limit Bank 1	E	YES	NO
P2098	Post Catalyst Fuel Trim System Low Limit Bank 2	E	YES	NO
P2099	Post Catalyst Fuel Trim System High Limit Bank 2	E	YES	NO
P2100	Throttle Actuator Control (TAC) Motor Control Circuit	A	YES	NO
P2101	Control Module Throttle Actuator Position Performance	A	YES	NO
P2105	Throttle Actuator Control (TAC) System - Forced Engine Shutdown	A	YES	NO
P2107	Throttle Actuator Control (TAC) Module Internal Circuit	C	NO	YES
P2111	Throttle Actuator Control (TAC) Throttle Valve Stuck Open	A	YES	NO
P2119	Throttle Closed Position Performance	A	YES	NO
P2122	Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage	A	YES	NO
P2123	Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage	A	YES	NO
P2127	Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage	A	YES	NO
P2128	Accelerator Pedal Position (APP) Sensor 2 Circuit High Voltage	A	YES	NO
P2138	Accelerator Pedal Position (APP) Sensor 1-2 Correlation	A	YES	NO
P2176	Minimum Throttle Position Not Learned	A	YES	NO
P2177	Fuel Trim System Lean at Cruise or Accel Bank 1	E	YES	NO
P2178	Fuel Trim System Rich at Cruise or Accel Bank 1	E	YES	NO
P2179	Fuel Trim System Lean at Cruise or Accel Bank 2	E	YES	NO
P2180	Fuel Trim System Rich at Cruise or Accel Bank 2	E	YES	NO
P2187	Fuel Trim System Lean at Idle Bank 1	E	YES	NO
P2188	Fuel Trim System Rich at Idle Bank 1	E	YES	NO
P2189	Fuel Trim System Lean at Idle Bank 2	E	YES	NO
P2190	Fuel Trim System Rich at Idle Bank 2	E	YES	NO
P2195	HO2S Signal Biased Lean Bank 1 Sensor 1	E	YES	NO
P2196	HO2S Signal Biased Rich Bank 1 Sensor 1	E	YES	NO
P2197	HO2S Signal Biased Lean Bank 2 Sensor 1	E	YES	NO
P2198	HO2S Signal Biased Rich Bank 2 Sensor 1	E	YES	NO
P2227	Barometric Pressure (BARO) Sensor Performance	E	YES	NO
P2228	Barometric Pressure (BARO) Sensor Circuit Low Voltage	E	YES	NO
P2229	Barometric Pressure (BARO) Sensor Circuit High Voltage	E	YES	NO
P2231	HO2S Signal Circuit Shorted to Heater Circuit Bank 1 Sensor 1	E	YES	NO
P2232	HO2S Signal Circuit Shorted to Heater Circuit Bank 1 Sensor 2	E	YES	NO
P2234	HO2S Signal Circuit Shorted to Heater Circuit Bank 2 Sensor 1	E	YES	NO
P2235	HO2S Signal Circuit Shorted to Heater Circuit Bank 2 Sensor 2	E	YES	NO
P2237	HO2S Pumping Current Control Circuit Bank 1 Sensor 1	E	YES	NO
P2238	HO2S Pumping Current Control Circuit Low Voltage Bank 1 Sensor 1	E	YES	NO
P2239	HO2S Pumping Current Control Circuit High Voltage Bank 1 Sensor 1	E	YES	NO
P2240	HO2S Pumping Current Control Circuit Bank 2 Sensor 1	E	YES	NO
P2241	HO2S Pumping Current Control Circuit Low Voltage Bank 2 Sensor 1	E	YES	NO
P2242	HO2S Pumping Current Control Circuit High Voltage Bank 2 Sensor 1	E	YES	NO
P2243	HO2S Reference Voltage Circuit Bank 1 Sensor 1	E	YES	NO
P2247	HO2S Reference Voltage Circuit Bank 2 Sensor 1	E	YES	NO
P2251	HO2S Low Reference Circuit Bank 1 Sensor 1	E	YES	NO
P2254	HO2S Low Reference Circuit Bank 2 Sensor 1	E	YES	NO
P2270	HO2S Signal Stuck Lean Bank 1 Sensor 2	E	YES	NO
P2271	HO2S Signal Stuck Rich Bank 1 Sensor 2	E	YES	NO
P2272	HO2S Signal Stuck Lean Bank 2 Sensor 2	E	YES	NO
P2273	HO2S Signal Stuck Rich Bank 2 Sensor 2	E	YES	NO
P2297	HO2S Performance During Decel Fuel Cut-Off (DFCO) Bank 1 Sensor 1	E	YES	NO
P2298	HO2S Performance During Decel Fuel Cut-Off (DFCO) Bank 2 Sensor 1	E	YES	NO
P2300	Ignition Coil 1 Control Circuit Low Voltage	E	YES	NO
P2301	Ignition Coil 1 Control Circuit High Voltage	E	YES	NO
P2303	Ignition Coil 2 Control Circuit Low Voltage	E	YES	NO
P2304	Ignition Coil 2 Control Circuit High Voltage	E	YES	NO
P2306	Ignition Coil 3 Control Circuit Low Voltage	E	YES	NO
P2307	Ignition Coil 3 Control Circuit High Voltage	E	YES	NO
P2309	Ignition Coil 4 Control Circuit Low Voltage	E	YES	NO
P2310	Ignition Coil 4 Control Circuit High Voltage	E	YES	NO
P2312	Ignition Coil 5 Control Circuit Low Voltage	E	YES	NO
P2313	Ignition Coil 5 Control Circuit High Voltage	E	YES	NO
P2315	Ignition Coil 6 Control Circuit Low Voltage	E	YES	NO
P2316	Ignition Coil 6 Control Circuit High Voltage	E	YES	NO
P2500	Generator L-Terminal Circuit Low Voltage	C	NO	YES
P2501	Generator L-Terminal Circuit High Voltage	C	NO	YES
P2626	HO2S Pumping Current Trim Circuit Bank 1 Sensor 1	E	YES	NO
P2627	HO2S Pumping Current Trim Circuit Low Voltage Bank 1 Sensor 1	E	YES	NO
P2628	HO2S Pumping Current Trim Circuit High Voltage Bank 1 Sensor 1	E	YES	NO
P2629	HO2S Pumping Current Trim Circuit Bank 2 Sensor 1	E	YES	NO
P2630	HO2S Pumping Current Trim Circuit Low Voltage Bank 2 Sensor 1	E	YES	NO
P2631	HO2S Pumping Current Trim Circuit High Voltage Bank 2 Sensor 1	E	YES	NO
U0001	High Speed CAN Communication Bus	C	NO	YES
U0101	Lost Communication with TCM	C	NO	YES
U0121	Lost Communication With Anti-Lock Brake System (ABS) Control Module	C	NO	YES
U0422	Invalid Data Received From Body Control Module	C	NO	YES

Diagnostic Trouble Code (DTC) P0008 or P0009

DTC Descriptor

DTC P0008 : Engine Position System Performance Bank 1

DTC P0009 :Engine Position System Performance Bank 2

Diagnostic Fault Information

Perform the Diagnostic System Check prior to using this diagnostic procedure.

Circuit/System Description

The engine control module (ECM) tests for a misalignment between both camshafts on one bank of the engine and the crankshaft. The misalignment would be at an idler sprocket for either bank or at the crankshaft. Once the ECM learns the position of both camshafts on one bank of the engine, the ECM compares the learned values to a reference value. The ECM will set a DTC if both learned values for one bank of the engine are exceeding a calibrated threshold in the same direction.

Conditions for Running the DTC

DTCs P0010, P0011, P0013, P0014, P0020, P0021, P0023, P0024, P0341, P0342, P0343, P0346, P0347, P0348, P0366, P0367, P0368, P0391, P0392, P0393, P2088, P2089, P2090, P2091, P2092, P2093, P2094, and P2095 are not set.
The engine is operating.
The ECM has learned the camshaft positions.
DTC P0008 and P0009 runs continuously once the above conditions are met.

Conditions for Setting the DTC

The ECM detects that both camshafts on either bank of the engine are mis-aligned with the crankshaft for more than 4 seconds.

Action Taken When the DTC Sets

DTC P0008 and P0009 are type E DTCs

Conditions for Clearing the DTC

DTC P0008 and P0009 are type E DTCs

Diagnostic Aids

Inspect the engine for any recent engine mechanical repairs. An incorrectly installed secondary timing chain can cause this DTC to set.
A single failed camshaft actuator or actuator solenoid will not cause this DTC to set. This diagnostic algorithm is designed to detect an alignment condition between a primary intermediate sprocket and the secondary timing chain, or the alignment between a primary intermediate sprocket and the crankshaft. Either condition would cause the camshaft timing for both cams on one bank to be off an equal number of degrees.
The presence of DTCs P0008 and P0009 along with P0016, P0017, P0018, and P0019 indicates a possible condition with the primary timing chain and the alignment between both intermediate sprockets and the crankshaft. Or, the crankshaft reluctor wheel has moved and is no longer referenced to top dead center (TDC).
Observing the desired and actual camshaft angle parameters, with a scan tool before a DTC sets, may help to isolate whether a condition is specific to one camshaft, one bank, or caused by a condition with the primary crankshaft timing.

Circuit/System Verification

Clear the DTCs with a scan tool.
Allow the engine to reach the normal operating temperature.
Idle the engine for 10 minutes or until a DTC sets. Observe the DTC information with a scan tool, DTCs P0008 and P0009 should not set.

Circuit/System Testing

Inspect the timing chains and tensioners for excessive wear or misalignment.

If a condition with the timing chains or tensioners exists, refer to Timing Chain Component in Section 1C2, Engine Mechanical - HFV6 3.2 L.

Inspect the crankshaft reluctor wheel for being mispositioned on the crankshaft.

If a condition with the crankshaft exists, refer to Crankshaft and Main Bearings in Section 1C2, Engine Mechanical - HFV6 3.2 L.

Diagnostic Trouble Code (DTC) P0010, P0013, P0020, P0023, P2088, P2089, P2090, P2091, P2092, P2093, P2094, or P2095

DTC Descriptor

DTC P0010 : Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 1

DTC P0013 : Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 1

DTC P0020 : Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 2

DTC P0023 : Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 2

DTC P2088 : Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Low Voltage Bank 1

DTC P2089 : Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit High Voltage Bank 1

DTC P2090 : Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Low Voltage Bank 1

DTC P2091 : Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit High Voltage Bank 1

DTC P2092 : Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Low Voltage Bank 2

DTC P2093 : Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit High Voltage Bank 2

DTC P2094 : Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Low Voltage Bank 2

DTC P2095 : Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit High Voltage Bank 2

Diagnostic Fault Information

Perform the Diagnostic System Check prior to using this diagnostic procedure.

Circuit/System Description

The camshaft position (CMP) actuator system enables the engine control module (ECM) to change the timing of the camshafts while the engine is operating. The CMP actuator solenoid signal from the ECM is pulse width modulated (PWM). The ECM controls the CMP actuator solenoid duty cycle by controlling the amount of solenoid ON time. The CMP actuator solenoid controls the advance or the retard of each camshaft. The CMP actuator solenoid controls the oil flow that applies the pressure to advance or retard the camshafts.

Ignition voltage is supplied directly to the CMP actuator solenoid. The ECM controls the solenoid by grounding the control circuit with a solid state device called a driver. The driver is equipped with a feedback circuit that is pulled-up to a voltage. The ECM can determine if the control circuit is open, shorted to ground, or shorted to a voltage by monitoring the feedback voltage.

Conditions for Running the DTC

The engine speed is more than 80 RPM.
The ignition 1 voltage is between 10-18 volts.
The ECM has commanded the CMP actuator solenoid ON and OFF at least once during the ignition cycle.
DTCs P0010, P0013, P0020, P0023, P2088, P2089, P2090, P2091, P2092, P2093, P2094, and P2095 run continuously once the above conditions are met for more than 1 second.

Conditions for Setting the DTC

P0010, P0013, P0020, P0023

The ECM detects an open in the CMP actuator solenoid circuits for more than 4 seconds, when the solenoid is commanded OFF.

P2088, P2090, P2092, P2094

The ECM detects a short to ground in the CMP actuator solenoid circuits for more than 4 seconds, when the solenoid is commanded OFF.

P2089, P2091, P2093, P2095

The ECM detects a short to voltage in the CMP actuator solenoid circuits for more than 4 seconds, when the solenoid is commanded ON.

The ECM detects an open, a short to ground, or a short to B+ in the CMP actuator solenoid circuit when the solenoid is commanded OFF.
The condition exists for more than 4 seconds.

Action Taken When the DTC Sets

DTCs P0010, P0013, P0020, P0023, P2088, P2089, P2090, P2091, P2092, P2093, P2094, and P2095 are type E DTCs.

Conditions for Clearing the DTC

DTCs P0010, P0013, P0020, P0023, P2088, P2089, P2090, P2091, P2092, P2093, P2094, and P2095 are type E DTCs.

Circuit/System Verification

With the engine at normal operating temperature, raise the engine speed to 2,000 RPM for 10 seconds. DTCs P0010, P0013, P0020, P0023, P2088, P2089, P2090, P2091, P2092, P2093, P2094, or P2095 should not set.
If the vehicle passes the Circuit/System Verification test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List.

Circuit/System Testing

Ignition OFF, disconnect the harness connector at the appropriate camshaft position (CMP) actuator solenoid.
Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal and ground.

If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal and the ignition circuit fuse is open, test all the components connected to the ignition circuit and replace as necessary.

Ignition OFF, connect a test lamp between the control circuit terminal and B+.
Ignition ON, command the CMP actuator solenoid ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.

If the test lamp is always ON, test for a short to ground on the control circuit. If circuit test normal, replace the ECM.
If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the ECM.

Ignition ON, test for 2.0-3.0 volts between the control circuit terminal and a known ground.

If the voltage is not within the specified range, replace the ECM.

If all circuits/connections test normal, test or replace the CMP actuator solenoid.

Component Testing

Measure for 7-12 ohms of resistance between the terminals of the CMP actuator solenoid.

If the resistance is not within the specified range, replace the CMP actuator solenoid.

Test for infinite resistance between each terminal of the CMP actuator solenoid and the CMP actuator solenoid housing.

If less than infinite resistance, replace the CMP actuator solenoid valve.

Diagnostic Trouble Code (DTC) P0011, P0014, P0021, or P0024

DTC Descriptor

DTC P0011 : Intake Camshaft Position (CMP) System Performance Bank 1

DTC P0014 : Exhaust Camshaft Position (CMP) System Performance Bank 1

DTC P0021 : Intake Camshaft Position (CMP) System Performance Bank 2

DTC P0024 : Exhaust Camshaft Position (CMP) System Performance Bank 2

Diagnostic Fault Information

Perform the Diagnostic System Check prior to using this diagnostic procedure.

Circuit/System Description

Conditions for Running the DTC

Before the ECM can report DTC P0011, P0014, P0021, or P0024 failed, DTCs P0010, P0013, P0020, P0023, P0341, P0342, P0343, P0346, P0347, P0348, P0366, P0367, P0368, P0391, P0392, P0393, P2088, P2089, P2090, P2091, P2092, P2093, P2094, and P2095 must run and pass.
DTCs P0016, P0017, P0018, P0019, P0335, P0336, and P0338 are not set.
The engine speed is more than 500 RPM.
The engine must accelerate such that the CMP actuator system is commanded from the park position to the phased position. This is considered a cam control cycle. There must be a total of 4-10 cam control cycles for at least 2.5 seconds each in the phased position.
The engine is operating for approximately 1.8 seconds.
DTCs P0011, P0014, P0021, and P0024 run continuously once the above conditions are met for more than 1 second.

Conditions for Setting the DTC

The ECM detects the difference between the desired camshaft position and the actual camshaft position angle is more than 5 degrees.

The ECM detects the difference between the actual camshaft angle and the locked position angle is more than 1 degree.
The condition exists for more than 4 seconds.

Action Taken When the DTC Sets

DTCs P0011, P0014, P0021, and P0024 are type E DTCs.

Conditions for Clearing the DTC

DTCs P0011, P0014, P0021, and P0024 are type E DTCs.

Diagnostic Aids

The engine oil condition has a major impact on the camshaft actuator system.
A low oil level condition may set this DTC. The engine may require an oil change. You may also monitor the Engine Oil Life parameter with a scan tool.
Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, or timing chain can cause this DTC to set.

Circuit/System Verification

Important : The engine oil level and the oil pressure are critical to the correct operation of the camshaft position (CMP) actuator system. Verify that the engine has the correct oil level and the correct oil pressure before continuing with this diagnostic.

Ignition ON, observe the DTC information with a scan tool. Verify that none of the following DTCs are set. DTC P0016, P0017, P0018, P0019, P0335, P0336, P0338, P0341, P0342, P0343, P0346, P0347, P0348, P0366, P0367, P0368, P0391, P0392, P0393, P0521, P0522, or P0523.

If any of the DTCs listed are set refer to the appropriate DTC information for further diagnosis.

Engine idling. Command the suspected camshaft actuator from 0 degrees to 40 degrees and back to zero while observing the appropriate CMP Angle Variance parameters, with a scan tool. The CMP Angle Variance should be within 2 degrees of each commanded state.
If the vehicle passes the Circuit/System Verification test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List.

Circuit/System Testing

Ignition OFF, disconnect the harness connector at the appropriate camshaft position (CMP) actuator solenoid.
Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal and a known ground.

Important : The ignition circuit supplies voltage to other components. Make sure you test all circuits for a short to ground or test all components for being shorted that share the ignition circuit.

If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal and the ignition circuit fuse is open, test all the components connected to the ignition circuit and replace as necessary.

Ignition OFF, connect a test lamp between the control circuit terminal 2 and B+.
Ignition ON, command the CMP actuator solenoid ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.

If the test lamp is always ON, test for a short to ground on the control circuit. If circuit test normal, replace the ECM.
If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the ECM.

Remove the CMP actuator solenoid. Inspect the CMP actuator solenoid and mounting area for the following conditions:

For a torn, restricted, mis-positioned, or missing screens at the CMP actuator solenoid.
For engine oil leaks between the oil sealing lands of the CMP actuator solenoid. Inspect the lands of the CMP actuator solenoid for nicks.
For oil seepage at the CMP actuator solenoid connector.

If a condition is found, replace CMP actuator solenoid.

If all circuits/connections test normal, test or replace the CMP actuator solenoid.

Component Testing

Measure for 7–12 ohms of resistance between the terminals of the CMP actuator solenoid.

If the resistance is not within the specified range, replace the CMP actuator solenoid.

Test for infinite resistance between each terminal of the CMP actuator solenoid and the CMP actuator solenoid housing.

If less than infinite resistance, replace the CMP actuator solenoid valve.

Diagnostic Trouble Code (DTC) P0016, P0017, P0018, or P0019

DTC Descriptor

DTC P0016 : Crankshaft Position (CKP) - Intake Camshaft Position (CMP) Correlation Bank 1

DTC P0017 :Crankshaft Position (CKP) - Exhaust Camshaft Position (CMP) Correlation Bank 1

DTC P0018 :Crankshaft Position (CKP) - Intake Camshaft Position (CMP) Correlation Bank 2

DTC P0019 :Crankshaft Position (CKP) - Exhaust Camshaft Position (CMP) Correlation Bank 2

Diagnostic Fault Information

Perform the Diagnostic System Check prior to using this diagnostic procedure.

Circuit/System Description

Ignition voltage is supplied directly to the CMP actuator solenoid. The ECM controls the solenoid by grounding the control circuit with a solid state device called a driver. The ECM compares the camshaft position or the camshaft angle, to the position of the crankshaft.

Conditions for Running the DTC

Before the ECM can report DTC P0016, P0017, P0018, or P0019 failed, DTCs P0010, P0011, P0013, P0014, P0020, P0021, P0023, P0024, P0335, P0336, P0338, P0341, P0342, P0343, P0346, P0347, P0348, P0366, P0367, P0368, P0391, P0392, P0393, P2088, P2089, P2090, P2091, P2092, P2093, P2094, and P2095 must run and pass.
The engine is operating for more than 5 seconds.
The engine coolant temperature is between 0-95°C (32-203°F).
The calculated engine oil temperature is less than 120°C (248°F).
DTC P0016, P0017, P0018, and P0019 run continuously once the above conditions are met for approximately 10 minutes.

Conditions for Setting the DTC

The ECM detects one of the following conditions :

The ECM detects a deviation in the relationship between a camshaft and the crankshaft.
A camshaft is too advanced in relationship to the crankshaft.
A camshaft is too retarded in relationship to the crankshaft.

The ECM detects the difference between the actual camshaft angle and the locked position angle is more than 1 degree.
The condition exists for more than 4 seconds.

Action Taken When the DTC Sets

DTCs P0016, P0017, P0018, and P0019 are type E DTCs.

Conditions for Clearing the DTC

DTCs P0016, P0017, P0018, and P0019 are type E DTCs.

Diagnostic Aids

Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, camshaft sensor, crankshaft sensor, or timing chain can cause this DTC to set.
An actuator that is in the full advance or retard position can cause this DTC to set.
The presence of DTCs P0008 and P0009 along with P0016, P0017, P0018, and P0019 indicates a possible condition with the primary timing chain and the alignment between both intermediate sprockets and the crankshaft. Or, the crankshaft reluctor wheel has moved and is no longer referenced to top dead center (TDC).
Observing the desired and actual camshaft angle parameters, with a scan tool before a DTC sets, may help to isolate whether a condition is specific to one camshaft, one bank, or caused by a condition with the primary crankshaft timing.

Circuit/System Testing

Ignition ON, observe the DTC information with a scan tool. Verify that none of the following DTCs are set. DTC P0010, P0013, P0020, P0023, P0335, P0336, P0338, P0341, P0342, P0343, P0346, P0347, P0348, P0366, P0367, P0368, P0391, P0392, P0393, P2088, P2089, P2090, P2091, P2092, P2093, P2094, or P2095.

If any of the DTCs listed are set refer to the appropriate DTC information for further diagnosis.

Idle the engine at normal operating temperature for 10 minutes. DTCs P0016, P0017, P0018, or P0019 should not set.

If a DTC sets, inspect for the following :

The correct installation of the camshaft sensors.
The correct installation of the crankshaft sensor.
A timing chain tensioner condition.
An incorrectly installed timing chain.
Excessive play in the timing chain.
A timing chain that jumped teeth.
A crankshaft reluctor wheel that has moved in relationship to top dead center (TDC) on the crankshaft.

If the vehicle passes the Circuit/System Verification test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List.

Diagnostic Trouble Code (DTC) P0030, P0031, P0032, P0036, P0037, P0038, P0050, P0051, P0052, P0056, P0057, or P0058

DTC Descriptor

DTC P0030 : HO2S Heater Control Circuit Bank 1 Sensor 1

DTC P0031 : HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 1

DTC P0032 : HO2S Heater Control Circuit High Voltage Bank 1 Sensor 1

DTC P0036 : Heater Control Circuit Bank 1 Sensor 2

DTC P0037 :HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 2

DTC P0038 : HO2S Heater Control Circuit High Voltage Bank 1 Sensor 2

DTC P0050 : HO2S Heater Control Circuit Bank 2 Sensor 1

DTC P0051 : HO2S Heater Control Circuit Low Voltage Bank 2 Sensor 1

DTC P0052 : HO2S Heater Control Circuit High Voltage Bank 2 Sensor 1

DTC P0056 : HO2S Heater Control Circuit Bank 2 Sensor 2

DTC P0057 : HO2S Heater Control Circuit Low Voltage Bank 2 Sensor 2

DTC P0058 :HO2S Heater Control Circuit High Voltage Bank 2 Sensor 2

Diagnostic Fault Information

Perform the Diagnostic System Check prior to using this diagnostic procedure.

Circuit	Short to Ground	Open/High Resistance	Short to Voltage	Signal Performance
Ignition Voltage	P0030, P0036, P0050, P0056	P0030, P0036, P0050, P0056	-	P0135, P0141, P0155, P0161
HO2S Heater Control Sensor 1	P0031, P0051	P0030, P0050	P0032, P0052	P0135, P0141, P0155, P0161
HO2S Heater Control Sensor 2	P0037, P0057	P0036, P0056	P0038, P0058	P0135, P0141, P0155, P0161

Circuit Description

The heated oxygen sensor (HO2S) heater reduces the time required for the oxygen sensor to reach operating temperature and maintains the operating temperature during extended idle periods. When the ignition is turned to the ON position, ignition voltage is supplied directly to the sensor heater. The engine control module (ECM) controls the heater operation by first modulating the control circuit to ground when the sensors are cold. This prevents the possibility of thermal shock to the sensor, from condensation build-up on the sensor, by controlling the sensors rate of heating. After a predetermined amount of time, the ECM commands the heaters ON continuously. Once the sensor reaches operating temperature, the ECM may modulate the heater control circuit to ground, to maintain a desired temperature.

The ECM controls the heater by grounding the control circuit with a solid state device called a driver. The driver is equipped with a feedback circuit that is pulled-up to voltage. The ECM can determine if the control circuit is open, shorted to ground, or shorted to a voltage by monitoring the feedback voltage.

The HO2S utilizes the following circuits:

A signal circuit
A low reference circuit
An ignition voltage circuit
A heater control circuit

Conditions for Running the DTC

P0030, P0031, P0032, P0050, P0051, P0052

The ignition voltage is between 10.5–18 volts.
The engine speed is more than 80 RPM.
The HO2S heater is commanded ON and OFF at least once during the ignition cycle.
The DTCs run continuously once the above conditions are met for 1 second.

P0036, P0037, P0038, P0056, P0057, P0058

The ignition voltage is between 10.5–18 volts.
The engine speed is more than 80 RPM.
The HO2S heater is commanded ON and OFF at least once during the ignition cycle.
The secondary HO2S is at operating temperature.
The DTCs run continuously once the above conditions are met for 1 second.

Conditions for Setting the DTC

P0030, P0036, P0050, and P0056The ECM detects an open in the heater circuits of the HO2S when the heater is commanded OFF. The condition exists for more than 4 seconds.

P0031, P0037, P0051, and P0057The ECM detects a ground in the heater circuits of the HO2S when the heater is commanded OFF. The condition exists for more than 4 seconds.

P0032, P0038, P0052, and P0058The ECM detects a short to voltage in the heater circuits of the HO2S when the heater is commanded ON. The condition exists for more than 4 seconds.

Action Taken When the DTC Sets

DTCs P0030, P0031, P0032, P0036, P0037, P0038, P0050, P0051, P0052, P0056, P0057, and P0058 are Type E DTCs.

Conditions for Clearing the MIL/DTC

DTCs P0030, P0031, P0032, P0036, P0037, P0038, P0050, P0051, P0052, P0056, P0057, and P0058 are Type E DTCs.

Diagnostic Aids

If the condition is intermittent, move the related harnesses and connectors, with the engine operating, while monitoring the circuit status for the component with a scan tool. The circuit status parameter changes from OK or Indeterminate to Fault if there is a condition with the circuit or a connection. The ODM information is in the output driver module (ODM) data list.
An open fuse in the HO2S heater circuit may be caused by the heater element in one of the sensors. The condition may not be present until the sensor operates for a period of time. If no fault is present in the heater circuit, monitor the amperage of each heater using the DMM to determine if one of the heater elements is the cause of the open fuse. Inspect the sensor pigtail or the harness for contacting the exhaust system.

Circuit/System Verification

Engine idling at operating temperature for at least 30 seconds. Observe the DTC information, DTCs P0030, P0031, P0032, P0036, P0037, P0038, P0050, P0051, P0052, P0056, P0057, and P0058 should not set.

Circuit/System Testing

Ignition OFF, disconnect the harness connector at the appropriate heated oxygen sensor (HO2S).
Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal and a known ground.

If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal and the ignition circuit fuse is open, test all the components connected to the ignition 1 circuit and replace as necessary.

Ignition OFF, connect a test lamp between the heater control circuit terminal and B+. The test lamp should not illuminate.

If the test lamp is always ON, test the control circuit for a short to ground. If the circuit/connections test normal, replace the ECM.

Important : The control circuit for the HO2S heater is pulled-up to voltage within the ECM, 2.0-3.0 volts on the control circuit is normal.

Idle the engine, and verify the test lamp illuminates or flashes.

If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit/connections test normal, replace the ECM.

Ignition ON, test for 2.0-3.0 volts between the control circuit terminal D and ground.

If not within the specified range, replace the ECM.

If all circuits/connections test normal, test or replace the HO2S sensor.

Component Testing

Ignition OFF, disconnect the harness connector at the heated oxygen sensor (HO2S) sensor.
Test the HO2S heater resistance for 3–35 ohms.

If the resistance is out of the specified range, replace the HO2S sensor.

Diagnostic Trouble Code (DTC) P0040 or P0041

DTC Descriptor

DTC P0040 : HO2S Sensor Signals Swapped Banks 1 and 2 Sensor 1

DTC P0041 : HO2S Sensor Signals Swapped Banks 1 and 2 Sensor 2

Diagnostic Fault Information

Perform the Diagnostic System Check prior to using this diagnostic procedure.

Circuit/System Description

The heated oxygen sensor (HO2S) heater reduces the time required for the oxygen sensor to reach operating temperature and maintains the operating temperature during extended idle periods. When the ignition is turned to the ON position, ignition voltage is supplied directly to the sensor heater. The engine control module (ECM) controls the heater operation by first modulating the control circuit to ground when the sensors are cold. This prevents the possibility of thermal shock to the sensor, from condensation build-up on the sensor, by controlling the sensors rate of heating. After a predetermined amount of time the ECM commands the heaters ON continuously. Once the sensor reaches operating temperature the ECM may modulate the heater control circuit to ground, to maintain a desired temperature.

The ECM controls the heater by grounding the control circuit with a solid state device called a driver. The driver is equipped with a feedback circuit that is pulled-up to voltage. The ECM can determine if the control circuit is open, shorted to ground or shorted to a voltage by monitoring the feedback voltage.

An HO2S Signal Swapped DTC set if the ECM detects the HO2S signal voltages are heading in the opposite direction of the commanded state.

The HO2S utilizes the following circuits:

A signal circuit
A low reference circuit
An ignition voltage circuit
A heater control circuit

Conditions for Running the DTC

P0040 or P0041

The ignition voltage is between 10.5–18 volts.
The engine speed is more than 80 RPM.
The HO2S heater is commanded ON and OFF at least once during the ignition cycle.
The DTCs run continuously once the above conditions are met for 1 second.

Conditions for Setting the DTC

P0040 or P0041

An HO2S Signal Swapped DTC set if the ECM detects the HO2S signal voltages are heading in the opposite direction of the commanded state.

Action Taken When the DTC Sets

DTCs P0040 and P0041 are type E DTCs.

Conditions for Clearing the MIL/DTC

DTCs P0040 and P0041 are type E DTCs.

Diagnostic Aids

If the condition is intermittent, move the related harnesses and connectors with the engine operating, while monitoring the circuit status for the component with a scan tool. If the circuit status parameter changes from OK or Indeterminate to Fault there is a condition with the circuit or a connection. The ODM information is inthe output driver module (ODM) data list.
An open fuse in the HO2S heater circuit may be caused by the heater element in one of the sensors. The condition may not be present until the sensor operates for a period of time. If no fault is present in the heater circuit, monitor the amperage of each heater using the DMM to determine if one of the heater elements is the cause of the open fuse. Inspect the sensor pigtail or the harness for contacting the exhaust system.

Diagnostic Trouble Code (DTC) P0053 or P0059

DTC Descriptor

DTC P0053 :HO2S Heater Resistance Bank 1 Sensor 1

DTC P0041 : HO2S Heater Resistance Bank 2 Sensor 1

Diagnostic Fault Information

Perform the Diagnostic System Check prior to using this diagnostic procedure.

Circuit/System Description

Heated oxygen sensors (HO2S) are used for fuel control and post catalyst monitoring. Each HO2S compares the oxygen content of the surrounding air with the oxygen content in the exhaust stream. The HO2S must reach operating temperature to provide an accurate voltage signal. A heating element inside the HO2S minimizes the time required for the sensor to reach operating temperature. Voltage is provided to the heater by an ignition voltage circuit through a fuse. With the engine running a ground is provided to the heater by the HO2S heater low control circuit, through a low side driver within the control module. The control module commands the heater ON or OFF to maintain a specific HO2S operating temperature range.

The control module determines the temperature by measuring the current flow through the heater and calculating the resistance. Based on the resistance the control module can predict the sensor temperature. The sensors use pulse width modulation (PWM) to control the heater operation. The control module calculates the heater resistance on a cold start. This diagnostic will only run once per ignition cycle. If the control module detects that the heater calculated resistance is not within the expected range these DTC will be set.

Conditions for Running the DTC

DTCs P0112, P0113, P0117, P0118 are not set.
The engine is running.
The ignition is OFF for more than 10 hours.
The Engine Coolant Temperature (ECT) Sensor parameter is between -30°C and +45°C (-22°F and +113°F) at engine start-up.
The ECT Sensor parameter minus the Intake Air Temperature (IAT) Sensor parameter is less than 8°C (14°F) at engine start-up.
DTCs P0053 and P0059 run once per drive cycle when the above conditions are met.

Conditions for Setting the DTC

P0053 and P0059

The control module detects that the affected HO2S heater low control circuit is not within a specified range at engine start-up.

Action Taken When the DTC Sets

DTCs P0053 and P0059 are type A DTCs.

Conditions for Clearing the MIL/DTC

DTCs P0053 and P0059 are type A DTCs.

Circuit/System Verification

Allow the engine to reach operating temperature. With the engine running, observe the HO2S Heater parameter with a scan tool. The value should vary from below 2 A to above 1 A.
With the engine running at operating temperature, observe the HO2S Heater parameter with a scan tool and manipulate the related wiring and connectors.

If manipulation does affect the parameter then repair the harness or connector.

Circuit/System Testing

Ignition OFF, disconnect the harness connector at the appropriate HO2S.
Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal a known ground.

If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, replace the HO2S.

Ignition OFF, verify that the test lamp is OFF between the heater low control circuit terminal of the appropriate HO2S and B+.

If the test lamp illuminates, test the low control circuit for a short to ground.

Connect a test lamp between the heater low control circuit terminal of the appropriate HO2S and the B+ circuit terminal.
With the engine running, the test lamp should be ON steady or flashing.

If the test lamp is not ON steady or flashing, test the low control circuit for a short to voltage and for open/high resistance. If the circuit tests normal, replace the control module.

Ignition OFF, install a 30A fusible link wire between the B+ circuit terminal and the heater low control circuit of the appropriate HO2S.
With the engine running, use a scan tool to observe that the appropriate HO2S heater parameter indicates 0.0 amp.

If the scan tool does not indicate 0.0 amp, test the heater B+ circuit and the low control circuit for resistance greater than 3 ohms. If the circuit tests normal, replace the control module.

If all circuits test normal, replace the appropriate HO2S.

Diagnostic Trouble Code (DTC) P0068

DTC Descriptor

DTC P0068 : Throttle Body Airflow Performance

Diagnostic Fault Information

Perform the Diagnostic System Check prior to using this diagnostic procedure.

Circuit/System Description

The engine control module (ECM) uses the following information to calculate an expected airflow rate:

The throttle position sensor (TP).
The intake air temperature (IAT).
The engine RPM.

Conditions for Running the DTC

DTCs P2101 or P2119 are not set.
The engine is running.
DTC P0068 runs continuously when the above conditions are met.

Conditions for Setting the DTC

The ECM detects that the throttle position and the indicated engine load do not correspond with the expected load and throttle position for less than 1 second.

Action Taken When the DTC Sets

DTC P0068 is a type A DTC.

Conditions for Clearing the MIL/DTC

DTC P0068 is a type A DTC.

Circuit/System Testing

Inspect for the following conditions:

Vacuum hoses for splits, kinks and correct connections as shown on Vehicle Emission Control Information label.
Inspect thoroughly for any type of leak or restriction.
Air leaks at throttle body mounting area and intake manifold sealing surfaces.

Inspect the throttle body for the following conditions:

Loose or damaged throttle blade.
Broken throttle shaft.
Any throttle body damage.

If any of these conditions exist, replace the throttle body assembly.

Connect a scan tool allow the engine to reach normal operating temperature. Observe the MAF Sensor parameters.
Take a snapshot of the engine data list while performing the actions listed below.

Idle the engine.
Increase the engine speed slowly to 3,000 RPM, then back to idle.
Exit from the snapshot and review the data.
Observe the MAF/TP sensor parameters frame by frame. The MAF/TP sensor parameters should change smoothly and gradually as the engine speed is increased and is returnedto idle.

If the MAF/TP sensor parameters do not change smoothly and gradually as the engine speed is increased and is returned to idle, identify the senor at fault and replace the appropriate sensor.

Diagnostic Trouble Code (DTC) P0100, P0102, or P0103

DTC Descriptor

DTC P0100 : Mass Air Flow (MAF) Sensor Circuit

DTC P0102 : Mass Air Flow (MAF) Sensor Circuit Low Frequency

DTC P0103 : Mass Air Flow (MAF) Sensor Circuit High Frequency

Diagnostic Fault Information

Perform the Diagnostic System Check prior to using this diagnostic procedure.

Circuit	Short to Ground	High Resistance	Open	Short to Voltage	Signal Performance
Ignition 1 Voltage	P0102	P0101	P0100	-	P0101
MAF Sensor Signal	P0102	P0101	P0103	P0103	P0101
Low Reference	-	P0101, P0103	P0103	-	P0101

Circuit/System Description

The mass air flow (MAF) sensor is located in the air intake duct. The MAF sensor is an airflow meter that measures the amount of air that enters the engine. The MAF sensor uses a hot film that is cooled by air flowing past the sensing film as air enters the engine. The amount of cooling is proportional to the amount of the air flow. As the air flow increases, more current is required in order to maintain the hot film at a constant temperature. The engine control module (ECM) uses the MAF sensor in order to provide the correct fuel delivery for all operating conditions.

Conditions for Running the DTC

P0100

The engine is operating.
The ignition 1 voltage is more than 10.5 volts.
DTC P0100 runs continuously once the above conditions are met for more than 1 seconds.

P0102 or P0103

Before the ECM can report DTCs P0102 or P0103 failed, DTCs P0121, P0122, P0123, P0221, P0222, P0223, P0336, and P0338 must run and pass.
The engine is operating.
The engine speed is more than 320 RPM.
The ignition 1 voltage is more than 7.5 volts.
DTCs P0102 and P0103 run continuously once the above conditions are met for less than 1 second.

Conditions for Setting the DTC

P0100

The ECM detects that the MAF sensor signal is not within a predetermined range of the calculated MAF value.
The condition exists for 4 seconds.

P0102

The ECM detects that the MAF sensor signal is less than -11.7 grams per second.
The condition exists for more than 4 seconds.

P0103

The ECM detects that the MAF sensor signal is more than 294 grams per second.
The condition exists for more than 4 seconds.

Action Taken When the DTC Sets

DTCs P0100, P0102, and P0103 are Type E DTCs.

Conditions for Clearing the DTC

DTCs P0100, P0102, and P0103 are Type E DTCs.

Diagnostic Aids

Inspect the harness of the MAF sensor to verify that it is not routed too close to the following components :

The secondary ignition wires or coils
Any solenoids
Any relays
Any motors

A wide open throttle (WOT) acceleration from a stop should cause the MAF sensor parameter on the scan tool to increase rapidly. This increase should be from 3-10 g/s at idle to 150 g/s or more at the time of the 1-2 shift. If the increase is not observed, inspect for a restriction in the induction system or the exhaust system.
Inspect for any contamination, water intrusion, or debris on the sensing elements of the MAF sensor. If debris is present, clean the sensor. If the sensor cannot be cleaned, replace the sensor.
A high resistance may cause a driveability concern before this DTC sets.

Circuit/System Verification

Engine idling for 1 minute, observe the DTC information with a scan tool. DTCs P0100, P0102 and P0103 should not set.
If the vehicle passes the Circuit/System Verification test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List.

Circuit/System Testing

Ignition OFF, disconnect the harness connector at the MAF sensor.

Notice : Do NOT use the low reference circuit in the component harness connector for this test. Damage to the control module may occur due to excessive current draw.

Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal and ground.

If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normaland the ignition circuit fuse is open, test all the components connected to the ignition circuit and replace as necessary.

Verify that a test lamp illuminates between B+ and ground circuit terminal.

If the test lamp does not illuminate, repair the ground circuit terminal for an open/high resistance.

Verify the scan tool MAF sensor voltage parameter is greater than 4.8 volts.

If less than the specified value, test the signal circuit for a short to ground. If the circuit/connections test normal, replace the ECM.

Install a 3-A fused jumper wire between the signal circuit terminal and the ground circuit terminal. Verify the scan tool MAF sensor voltage parameter is less than 0.10 volts.

If greater than the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit/connections test normal, replace the ECM.

If all circuits/connections test normal, replace the MAF sensor.

Diagnostic Trouble Code (DTC) P0101

DTC Descriptor

DTC P0101 :Mass Air Flow (MAF) Sensor Circuit Performance

Diagnostic Fault Information

Perform the Diagnostic System Check prior to using this diagnostic procedure.

Circuit	Short to Ground	High Resistance	Open	Short to Voltage	Signal Performance
Ignition 1 Voltage	P0102	P0101	P0100	-	P0101
MAF Sensor Signal	P0102	P0101	P0103	P0103	P0101
Low Reference	-	P0101, P0103	P0103	-	P0101

Circuit/System Description

Conditions for Running the DTC

Before the ECM can report DTC P0101 failed, DTCs P0100, P0102, P0103, P0121, P0122, P0123, P0221, P0222, P0223, P0335, P0336, and P0338 must run and pass.
DTC P2176 is not set.
The engine speed is more than 320 RPM.
The MAF sensor signal is more than 11 grams per second.
The ignition voltage is more than 10.5 volts.
The ECM detects more than 150 revolutions of the crankshaft.
DTC P0101 runs continuously once the above conditions are met for more than 2 seconds.

Conditions for Setting the DTC

The ECM detects that the MAF sensor signal is not within a predetermined range of thecalculated MAF value.
The condition exists for 4 seconds.

Action Taken When the DTC Sets

DTC P0101 is a Type E DTC.

Conditions for Clearing the DTC

DTC P0101 is a Type E DTC.

Diagnostic Aids

Inspect the harness of the MAF sensor to verify that it is not routed too close to the following components :

The secondary ignition wires or coils
Any solenoids
Any relays
Any motors
A dirty or deteriorating air filter element.
Water intrusion in the induction system.
Vacuum leaks.
Brake booster leaks.
Faulty crank case ventilation system.
Restricted or collapsed air duct.

A wide open throttle (WOT) acceleration from a stop should cause the MAF sensor parameter on the scan tool to increase rapidly. This increase should be from 3–10 g/s at idle to 150 g/s or more at the time of the 1-2 shift. If the increase is not observed, inspect for a restriction in the induction system or the exhaust system.
Inspect for any contamination, water intrusion, or debris on the sensing elements of the MAF sensor. If debris is present, clean the sensor. If the sensor cannot be cleaned, replace the sensor.
A high resistance may cause a driveability concern before this DTC sets.

Circuit/System Verification

Engine idling for 1 minute, observe the DTC information with a scan tool. DTC P0101 should not set.
If the vehicle passes the Circuit/System Verification test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List.

Circuit/System Testing

Inspect for the following conditions :

An engine vacuum leak
An air leak in the intake air duct between the mass air flow (MAF) sensor and the throttle body
A plugged or collapsed intake air duct
Objects that block the MAF sensor air inlet
An air filter element that is restricted
A restricted throttle plate or for carbon build-up around the throttle plate
An unseated engine oil dip stick
A loose or missing engine oil fill cap
An over filled crankcase

If you find any of the above conditions, repair as necessary.

Ignition OFF, disconnect the harness connector at the MAF sensor.

Notice : Do NOT use the low reference circuit in the component harness connector for this test. Damage to the control module may occur due to excessive current draw.

Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal and ground.

If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal and the ignition circuit fuse is open, test all the components connected to the ignition circuit and replace as necessary.

Verify that a test lamp illuminates between B+ and ground circuit terminal.

If the test lamp does not illuminate, repair the ground circuit terminal for an open/high resistance.

Verify the scan tool MAF sensor voltage parameter is greater than 4.8 volts.

If less than the specified value, test the signal circuit for a short to ground. If the circuit/connections test normal, replace the ECM.

Install a 3-A fused jumper wire between the signal circuit terminal and the ground circuit terminal. Verify the scan tool MAF sensor voltage parameter is less than 0.10 volts.

If greater than the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit/connections test normal, replace the ECM.

If all circuits/connections test normal, replace the MAF sensor.

Diagnostic Trouble Code (DTC) P0111, P0112 or P0113

DTC Descriptor

DTC P0111 : Intake Air Temperature (IAT) Sensor Circuit Performance

DTC P0112 : Intake Air Temperature (IAT) Sensor Circuit Low Voltage

DTC P0113 : Intake Air Temperature (IAT) Sensor Circuit High Voltage

Diagnostic Fault Information

Perform the Diagnostic System Check prior to using this diagnostic procedure.

Circuit	Short to Ground	Open/High Resistance	Short to Voltage	Signal Performance
IAT Sensor Signal	P0112	P0111, P0113	P0113¹	P0111
Low Reference	-	P0111, P0113	P0113¹	P0111
¹ Internal ECM or sensor damage may occur if the circuit is shorted to B+

Circuit Description

The intake air temperature (IAT) sensor is an integral part of the mass air flow (MAF) sensor. The IAT sensor is a variable resistor that measures the temperature of the intake air. The engine control module (ECM) supplies 5 volts to the IAT signal circuit and supplies a ground to the low reference circuit.

Conditions for Running the DTC

P0111 Idle Test

Before the ECM can report DTC P0111 failed, DTC P0101 must run and pass.
DTCs P0112, P0113, P0116, P0117, P0118, P0119, P0125, and P0128 are not set.
The engine coolant temperature (ECT) at engine start is less than 65.4°C (149.7°F).
The ECT is more than 75°C (167°F).
The vehicle speed is less than 10 km/h (6.3 mph).
DTC P0111 runs continuously once the above conditions are met for more than 2 seconds.

P0111 Cruise Test

Before the ECM can report DTC P0111 failed, DTC P0101 must run and pass.
DTCs P0112, P0113, P0116, P0117, P0118, P0119, P0125, and P0128 are not set.
The ECT at engine start is less than 65.4°C (149.7°F).
The vehicle speed is more than 60 km/h (37.4 mph).
The MAF is between 11-42 g/s.
Decel fuel cut-off (DFCO) is not active.
DTC P0111 runs continuously once the above conditions are met for more than 2 seconds.

P0112 and P0113

The engine run time is more than 3 minutes.
The engine is idling for more than 10 seconds.
The DTCs runs continuously once the above conditions are met.

Conditions for Setting the DTC

P0111 :

The ECM detects that the IAT increased less than 4°C (7°F) during the idle test.
The condition exists for a total of 16 seconds or 4 events of more than 4 seconds each. OR
The ECM detects that the IAT decreased less than 4°C (7°F) during the cruise test.
The condition exists for a total of 28 seconds or 7 events of more than 4 seconds each.

P0112 :

The ECM detects that the intake air temperature is more than 132°C (270°F) for more than 4 seconds.

P0113 :

The ECM detects that the intake air temperature is less than -42°C (-43.6°F) and remains steady within 3°C (5°F) during an air flow increase of more than 999 grams. The scan tool is limited to -40°C (-40°F), so the diagnostic procedure uses-39°C (-38°F) to determine if there is an IAT condition.
The condition exists for more than 4 seconds.

Action Taken When the DTC Sets

DTCs P0111, P0112, and P0113 are Type E DTCs.

Conditions for Clearing the MIL/DTC

DTCs P0111, P0112, and P0113 are Type E DTCs.

Diagnostic Aids

If the vehicle has sat overnight, the IAT sensor and the ECT sensor values should display within 3°C (5°F).
High resistance on either the IAT sensor signal circuit or the IAT sensor low reference circuit could set a DTC.

Circuit/System Verification

Operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records. DTC P0111, P0112, or P0113 should not set.

Circuit/System Testing

Ignition OFF, disconnect the MAF/IAT sensor.
Ignition ON, verify that the IAT sensor parameter is at -40°C (-40°F).

If greater than -40°C (-40°F), test the signal circuit of the IAT sensor for a short to ground. If the circuit/connections test normal, replace the engine control module (ECM).

Ignition OFF, remove the fuse that supplies B+ to the ECM.

Notice : Do NOT use a test lamp to test the continuity of the circuit. Damage to the control module may occur due to excessive current draw.

Test for less than 5 ohms between the low reference circuit terminal and a known ground.

If greater than 5 ohms, test the low reference circuit for an open/high resistance, or for a short to voltage. If the circuit/connections test normal, replace the ECM.

Install the fuse that supplies B+ to circuit terminal to the ECM.
Ignition ON, install a 3A fusible link wire between the signal circuit terminal and the low reference circuit terminal. Verify the IAT sensor parameter is greater than 132°C (270°F).

Important : If the signal circuit of the IAT sensor is shorted to voltage the IAT sensor may be damaged.

If less than 132°C (270°F), test the signal circuit of the IAT sensor for a short to voltage or an open/high resistance. If the circuit/connections test normal, replace the ECM.

If all circuits/connections test normal, test or replace the MAF/IAT sensor.

Component Testing

Ignition OFF, disconnect the harness connector of the IAT sensor.

Important : A thermometer can be used to test the sensor off the vehicle.

Test the IAT sensor by varying the sensor temperature while monitoring the sensor resistance. Compare the readings with the Temperature vs Resistance - Intake Air Temperature (IAT) Sensor table and verify that the resistance is within 5 percent of the specification.

If the resistance vs temperature is not within 5 percent, replace the IAT sensor.