Captiva |
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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 | Short from Supply Circuit to Control Circuit |
---|---|---|---|---|
Direct Fuel Injector High Voltage Supply Cylinder 1 | P2147 | P0201 | P2148 | P1248 |
Direct Fuel Injector High Voltage Control Cylinder 1 | P0261 | P0201 | P0262 | P1248 |
Direct Fuel Injector High Voltage Supply Cylinder 2 | P2150 | P0202 | P2151 | P1249 |
Direct Fuel Injector High Voltage Control Cylinder 2 | P0264 | P0202 | P0265 | P1249 |
Direct Fuel Injector High Voltage Supply Cylinder 3 | P2153 | P0203 | P2154 | P124A |
Direct Fuel Injector High Voltage Control Cylinder 3 | P0267 | P0203 | P0268 | P124A |
Direct Fuel Injector High Voltage Supply Cylinder 4 | P2156 | P0204 | P2157 | P124B |
Direct Fuel Injector High Voltage Control Cylinder 4 | P0270 | P0204 | P0271 | P124B |
Direct Fuel Injector High Voltage Supply Cylinder 5 | P216B | P0205 | P216C | P124C |
Direct Fuel Injector High Voltage Control Cylinder 5 | P0273 | P0205 | P0274 | P124C |
Direct Fuel Injector High Voltage Supply Cylinder 6 | P216E | P0206 | P216F | P124D |
Direct Fuel Injector High Voltage Control Cylinder 6 | P0276 | P0206 | P0277 | P124D |
The engine control module (ECM) supplies voltage to each fuel injector on the injector high voltage supply circuits. The ECM energises each fuel injector by grounding the high voltage control circuit of the fuel injector. The ECM monitors the status of the injector high voltage supply circuits and the fuel injector high voltage control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled.
• | The engine is running. |
• | The ignition voltage is between 11-18 V. |
• | The DTCs run continuously once the above conditions are met. |
The ECM detects the injector high voltage supply circuit or the injector high voltage control circuit is open for greater than 2 s.
The ECM detects the injector high voltage control circuit is shorted to ground for greater than 2 s.
The ECM detects the injector high voltage control circuit is shorted to voltage for greater than 2 s.
DTCs P0201, P0202, P0203, P0204, P0205, P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, and P0277 are Type A DTCs.
DTCs P0201, P0202, P0203, P0204, P0205, P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, and P0277 are Type A DTCs.
• | Performing the fuel injector coil test may help isolate an intermittent condition. Refer to Fuel Injector Solenoid Coil Test . |
• | If the condition is intermittent, move the related harnesses and connectors, with the engine operating, while monitoring the scan tool Injector Circuit Status parameters. An Injector Circuit Status parameter will change from OK or Not Run to Fault if there is a condition with the circuit or a connection. |
Fuel System Description : LF1
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
⇒ | If a DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle . |
⇒ | If not the specified value, test the appropriate high voltage supply circuit, ECM side, for a short to ground or the appropriate high voltage control circuit, ECM side, for a short to voltage. If the circuits test normal, replace the K20 ECM. |
⇒ | If not the specified value, test for the following conditions in the ECM side of the harness: |
• | An open circuit/high resistance in the high voltage supply circuit |
• | An open circuit/high resistance in the high voltage control circuit |
• | A short to ground in the high voltage control circuit |
• | A short to voltage in the high voltage supply circuit |
⇒ | If the circuits test normal, replace the K20 ECM. |
Note: Testing for the following steps is performed on the fuel injector side of the multi-way harness connector. It may be necessary to remove the intake manifold to isolate the condition.
⇒ | If less than the specified range, test the high voltage supply circuit and the high voltage control circuit for a short to ground. If the circuits/connections test normal, test or replace the appropriate Q17 fuel injector(s). |
⇒ | If less than the specified range, test for a short between the high voltage supply circuit and high voltage control circuit. If the circuits/connections test normal, test or replace the appropriate Q17 fuel injector(s). |
⇒ | If greater than the specified range, test the high voltage supply circuit and high voltage control circuit for an open circuit/high resistance. If the circuits/connections test normal, test or replace the appropriate Q17 fuel injector. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Fuel Injection Fuel Rail Assembly Replacement - Bank 1 : LF1, LFW |
• | Fuel Injection Fuel Rail Assembly Replacement - Bank 2 : LF1, LFW |
• | Control Module References for ECM replacement, setup, and programming |
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