Inspection and Verification
WARNING: This page is about a different car, the 2004 Lincoln LS. 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 and electrical damage.
Visual Inspection Chart
VISUAL INSPECTION CHARTMechanical Electrical - Hood switch
- Driver door arm/disarm switch(es)
- Luggage compartment lid disarm switch
- Ignition switch
- Vehicle horn
- Door ajar switches
- Luggage compartment switch
- Central junction box (CJB) fuses:
- 5 (5A)
- 7 (5A)
- Battery junction box (BJB) fuses:
- 22 (20A)
- 25 (40A)
- FEM
- REM
- DDM
- Connectors
- 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 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 key switch position.
- If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
- Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
- SCP+, SCP- or UBP circuit fault; all electronic control units no response/not equipped, refer to MODULE COMMUNICATIONS NETWORK - LS .
- No response/not equipped for front electronic module (FEM), refer to MODULE COMMUNICATIONS NETWORK - LS .
- No response/not equipped for rear electronic module (REM), refer to MODULE COMMUNICATIONS NETWORK - LS .
- No response/not equipped for driver door module (DDM), refer to MODULE COMMUNICATIONS NETWORK - LS .
- System passed, select FEM, REM and DDM from the main menu, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the FEM, REM and DDM.
- If the DTCs retrieved are related to the concern, go to the FEM DIAGNOSTIC TROUBLE CODE (DTC) INDEX, REM Diagnostic Trouble Code (DTC) Index, or DDM Diagnostic Trouble Code (DTC) Index to continue diagnostics.
- If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART .