Initial Inspection - Warning Devices

INSPECTION AND VERIFICATION

1. Verify the customer concern.

Visual Inspection Chart:

2. Visually inspect for obvious signs of mechanical and electrical damage.
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
- check that the program card is correctly installed.
- check the connections to the vehicle.
- check the ignition switch position.

5. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
6. Carry out the data link diagnostics test. If the diagnostic tool responds with:
- CAN or ISO circuit fault; all electronic control units no response/not equipped, refer to Module Communications Network (Information Bus).
- No response/not equipped for the instrument cluster, refer to Instrument Cluster, for smart junction box (SJB), refer to Body Control Systems (Multifunction Electronic Control Module).
- System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self test diagnostics for the instrument cluster and for the SJB.

7. If the DTCs retrieved are related to the concern, go to the Instrument Cluster Diagnostic Trouble Code (DTC) Index or the Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index to continue diagnostics. Instrument Cluster Diagnostic Trouble Code (DTC) Index Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index
8. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart. Diagnosis By Symptom - Warning Devices