Diagnostic Test

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

CHECK FOR AN ACTIVE DTC
NOTE:
Diagnose and repair any system voltage DTCs before continuing with this test.
1. Turn the ignition on.
2. With the scan tool, read DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
ENGINE OIL TEMPERATURE SENSOR
1. Turn the ignition off.
2. Disconnect the Engine Oil Temperature Sensor harness connector.
3. Turn the ignition on.
4. With the scan tool, read Engine Oil Temperature voltage.
  NOTE:
  The sensor voltage should be approximately 5.0 volts (plus or minus 0.1 volts) with the connector disconnected.
  
  Does the scan tool display the voltage as described above?
  
  Yes
  - Verify that there is good pin to terminal contact in the Engine Oil Temperature Sensor and Powertrain Control Module connectors. Replace the Engine Oil Temperature Sensor if no problems were found with the connectors. Refer to SENSOR, OIL TEMPERATURE, REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 3
CHECK FOR THE ENGINE OIL TEMPERATURE SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT
1. Turn the ignition off.
2. Disconnect PCM C2 harness connector.
3. Check for continuity between the Sensor ground circuit and the Engine Oil Temperature Signal circuit at the Engine Oil Temperature Sensor harness connector.
  Is there continuity between ground and the Engine Oil Temperature Signal circuit?
  
  No
  - Go To 4
  Yes
  - Repair the short to between the Sensor ground circuit and the Engine Oil Temperature Signal circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
CHECK THE ENGINE OIL TEMP SIGNAL CIRCUIT FOR A SHORT GROUND
1. Check for continuity between ground and the Engine Oil Temperature Signal circuit in the Engine Oil Temperature Sensor harness connector.
  Is there continuity between ground and the Engine Oil Temperature Signal circuit?
  
  No
  - Go To 5
  Yes
  - Repair the Engine Oil Temperature Signal circuit for a short to ground.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
POWERTRAIN CONTROL MODULE (PCM)
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Engine Oil Temperature 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 Sensor and 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 in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL (PCM), REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .