Circuit/System Verification
WARNING: This page is about a different variant/trim than selected.
- Ignition - On/Vehicle - In Service Mode
- Verify the following scan tool parameters are within the specified range: -39 to 139°C (-38 to 282°F)
- Engine Coolant Temperature Sensor
- Engine Coolant Temperature Sensor 2
- Engine Coolant Temperature Sensor 5
- If not in the specified range
Refer to: Circuit/System Testing
- Go to next step: If in the specified range
- Verify the scan tool parameter:
- Engine Coolant Temperature Sensor = The value should not spike or drop out.
- Engine Coolant Temperature Sensor 2 = The value should not spike or drop out.
- Engine Coolant Temperature Sensor 5 = 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
- If the DTC sets
- All OK.