Inspection And Verification
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.VISUAL INSPECTION CHART
Mechanical Electrical - Fuel tank
- Engine coolant level
- Accessory drive belt
- Engine oil level
- Parking brake position switch
- Brake fluid level
- Boost gauge pressure line
- Central junction box (CJB) fuse(s):
- 5 (15A)
- 7 (15A)
- 11 (15A)
- 13 (15A)
- 21 (5A)
- 23 (15A)
- 24 (30A)
- 29 (15A)
- 30 (15A)
- 32 (15A)
- 34 (20A)
- 35 (15A)
- 37 (5A)
- 38 (20A)
- 39 (5A)
- Circuitry
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- 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.
- If the diagnostic tool still does not power up, refer to the diagnostic tool operating manual.
- Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
- SCP or ISO; all electronic control units, no response/not equipped, refer to MODULE COMMUNICATIONS NETWORK .
- No response/not equipped for the instrument cluster, Go To PINPOINT TEST A: NO COMMUNICATION WITH THE INSTRUMENT CLUSTER or for the generic electronic module (GEM), Go To PINPOINT TEST W: NO COMMUNICATION WITH THE GENERIC ELECTRONIC MODULE (GEM) .
- System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out the self-test diagnostics for the instrument cluster or the GEM.
- If the DTCs retrieved are related to the concern, go to the INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE (DTC) INDEX or the GENERIC ELECTRONIC MODULE (GEM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX to continue diagnostics.
- If no DTCs related to the concerare retrieved, GO to SYMPTOM CHART to continue diagnosis