Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read the active DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
ENGINE OIL PRESSURE SENSOR
1. Turn the ignition off.
2. Disconnect the Oil Pressure Sensor harness connector.
3. Turn the ignition on, engine not running.
4. With the scan tool, read DTCs.
  NOTE:
  The scan tool should display a P0523-ENGINE OIL PRESSURE SENSOR CIRCUIT HIGH DTC as active or pending with the harness connector disconnected.
  
  Does the P0523-ENGINE OIL PRESSURE SENSOR CIRCUIT HIGH DTC set as active or pending with the harness connector unplugged?
  
  Yes
  - Verify that there is good pin to terminal contact in the Switch and Powertrain Control Module connectors. Replace the Oil Pressure Sensor if no problems were found in the connector. Refer to SENSOR, OIL PRESSURE, REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 3
CHECK THE (G6) SIGNAL CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the PCM C2 harness connector.
3. Check for continuity between ground and the (G6) Oil Pressure Signal circuit at the Oil Pressure Sensor harness connector.
  Is there continuity between ground and the (G6) Oil Pressure Signal circuit?
  
  Yes
  - Repair the (G6) Oil Pressure Signal circuit for a short to ground.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 4
CHECK FOR THE (G6) SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT
1. Check for continuity between the (G6) Oil Pressure Signal circuit and the (K900) Sensor Ground circuit at the Oil Pressure Sensor harness connector.
  Is there continuity between the (G6) Oil Pressure Signal circuit and the (K900) Sensor Ground circuit at the Oil Pressure Sensor harness connector?
  
  Yes
  - Repair the short between the (G6) Oil Pressure Signal circuit and the (K900) Sensor Ground circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 5
POWERTRAIN CONTROL MODULE (PCM)
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Engine Oil Pressure Sensor and the Powertrain Control Module (PCM).
2. Look for any chafed, pierced, pinched or partially broken wires.
3. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Switch and Powertrain Control Module connectors.
4. Perform any Service Bulletins that may apply.
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL (PCM), REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .