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• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Inlet Actuator Solenoid Control | P0010 00 | P0010 00 | P0010 00 | P0011 00 |
Exhaust Actuator Solenoid Control | P0013 00 | P0013 00 | P0013 00 | P0014 00 |
Inlet Actuator Solenoid Low Reference | - | P0010 00, P0011 00 | - | P0011 00 |
Exhaust Actuator Solenoid Low Reference | - | P0013 00, P0014 00 | - | P0014 00 |
The camshaft position actuator solenoid valve - inlet and camshaft position actuator solenoid valve - exhaust are attached to each camshaft and is operated hydraulically in order to change the angle of the camshaft relative to crankshaft position. The camshaft position actuator solenoid valve - inlet and camshaft position actuator solenoid valve - exhaust are controlled by the engine control module (ECM). The ECM sends a pulse width modulated signal to a camshaft position actuator solenoid valve - inlet and camshaft position actuator solenoid valve - exhaust solenoids. The camshaft position actuator solenoid valve - inlet and camshaft position actuator solenoid valve - exhaust solenoids controls the amount of engine oil flow to a camshaft position actuator solenoid valve - inlet and camshaft position actuator solenoid valve - exhaust. The camshaft position actuator solenoid valve - inlet and camshaft position actuator solenoid valve - exhaust can change the camshaft angle by a maximum of 20°. The ECM increases the pulse width to accomplish the desired camshaft operation.
The ECM controls the solenoid 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.
• | DTC P0010 00, P0013 00, P0016 00, P0017 00, P0335 00, P0336 00, P0340 00, P0341 00, P0365 00, or P0366 00 is not set. |
• | The engine is running. |
• | The ignition voltage is between 11-18 V. |
• | The camshaft position actuator is enabled. |
• | The rate of change in the camshaft position is less than 5° for 4 s. |
The ECM detects a difference of greater than 8° between the camshaft position angle position and the desired camshaft position for greater than 30 s.
• | DTCs P0011 00 and P0014 00 are Type B DTCs. |
• | The camshaft position actuator solenoid valve - inlet and camshaft position actuator solenoid valve - exhaust are commanded to the park position. |
DTCs P0011 00 and P0014 00 are Type B DTCs.
• | 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. Inquire with the customer when the last oil change was performed. You may also monitor the scan tool Engine Oil Life Remaining parameter. Advise the customer an oil change may be required. |
• | Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, or timing belt can cause this DTC to set. |
• | A resistance greater than 8 Ω on the camshaft position actuator solenoid valve - intake or camshaft position actuator solenoid valve - exhaust control circuit may set this DTC. If you suspect high resistance, ground the control circuit while the engine is idling. The scan tool Inlet Camshaft Position Actuator Solenoid Valve Control Circuit Low Voltage Test Status or Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit Low Voltage Test Status parameter should display Fault. If the parameter displays OK, test the control circuit for high resistance. |
Camshaft Actuator System Description
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
Note: The engine oil level and the oil pressure are critical to the correct operation of the camshaft position actuator system. Verify that the engine has the correct oil level and the correct oil pressure before continuing with this diagnostic.
Refer to Engine Mechanical Specifications : 1.8L 2H0 .
⇒ | If the test lamp does not illuminate, test the control circuit for an open/high resistance. |
⇒ | If the test lamp illuminates, test the low reference circuit for an ground. If the circuit test normal, replace the K20 Engine Control Module. |
⇒ | If the test lamp does not correspond to the commanded state, test the low reference circuit for an open/high resistance or a short to voltage. If the circuit test, replace the K20 Engine Control Module. |
• | For torn, restricted, mis-positioned, or missing screens at the Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust |
• | For engine oil leaks between the oil sealing lands of the Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid, inspect the lands of the Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid for nicks |
• | Remove the Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid. |
⇒ | If a condition is found, replace the appropriate Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid. |
Note: This step is testing the mechanical operation of the camshaft position actuator solenoid valve that set the DTC.
⇒ | If greater than the specified value, replace or repair the mechanical camshaft position actuator operation. |
⇒ | If not within the specified range, replace the Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid. |
⇒ | If not the specified value, replace the Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for replacement, setup, and programming |
© Copyright Chevrolet. All rights reserved |
© Copyright Chevrolet. All rights reserved |