Inspection and Verification
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.VISUAL INSPECTION CHART
Mechanical Electrical - Ignition key
- Ignition switch
- Multi-function switch
- Battery junction box (BJB) fuse(s):
- 1 (20A)
- 2 (25A)
- Central junction box (CJB) fuse(s):
- 11 (10A)
- 10 (5 A)
- 12 (10A)
- 13 (10A)
- 15 (7.5A)
- 17 (10A)
- 20 (10A)
- 22 (10A)
- 24 (10A)
- 26 (10A)
- 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 cause is not visually evident, connect the diagnostic tool to the data link connector (DLC) 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 communicate with the vehicle, refer to the diagnostic tool manual.
- Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
- No response/not equipped for lighting control module (LCM), refer to MULTIFUNCTION ELECTRONIC MODULES .
- System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs, and carry out the self-test diagnostics for the LCM.
- If the DTCs retrieved are related to the concern, go to the LIGHTING CONTROL MODULE (LCM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX .
- If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART .
NOTE:
For a complete list of LCM DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES
.