Diagnosing Customer Concerns w/out Hard Fault Codes

If a Diagnostic Trouble Code (DTC) is reported by the customer but is not present when the vehicle comes in for repair, follow the Diagnostic Trouble Code Retrieval procedure to identify the intermittent DTC.

Once the DTC is known, read the Normal Operation section for the code involved.
- Determine the location of components involved in creating that code.
- the primary crash sensor mounted on the center radiator support.
- the safing sensor, which is internal to the ECS.
- Perform a thorough visual inspection of:
components
connectors
splices and wiring harnesses
pinched wires
worn insulation on conductors
opens, shorts or loosely mounted sensors.

Refer to Possible Causes which lists the common concerns that relate to a particular code. Concerns are listed according to priority.