Circuit/System Verification

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

Verify no other DTCs are set.
- If other DTCs are set
  Refer to: Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If no other DTCs are set
Ignition/Vehicle - Off - For greater than 6 h
Ignition - On / Vehicle - In Service Mode
Verify the following parameters are within 15.8°C (28°F) of each other:
- Ambient Air Temperature Sensor
- ECT Sensor
- IAT Sensor
- If not within 15.8°C (28°F) of each other
  {Ambient Air Temperature Sensor} Refer to: DTC P0071-P0074
  
  {ECT Sensor} Refer to: Circuit/System Testing
  
  {IAT Sensor} Refer to: DTC P0097-P0099, P00F4-P00F6, or P0112-P0114
- Go to next step: If within 15.8°C (28°F) of each other
Verify the scan tool parameter: ECT Sensor = The value should not spike or drop out.
Perform the action while monitoring the parameter:
- Wiggle the harness and connector: B34 Engine Coolant Temperature Sensor
- Wiggle the harness and connector: K20 Engine Control Module
- If the value spikes or drops out
  Repair as necessary - Wiring / Terminal (s) / Electrical Connector (s)
- Go to next step: If the value does not spike or drop out
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 data.
Verify the DTC does not set.
- If the DTC sets
  Refer to: Circuit/System Testing
- Go to next step: If the DTC is not set
All OK.