Circuit/System Verification
- Ignition ON, observe the scan tool engine coolant temperature (ECT) sensor parameter. Verify the scan tool ECT sensor parameter does not fluctuate greater than 3 °C (5 °F) while moving the related harnesses and connectors.
- Repair the suspected harness or connection if the ECT parameter fluctuates abruptly.
- Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.