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Home >> Ford >> 2004 >> Mustang Mach 1, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 267 (Interior Lighting System) >> Diagnosis And Testing >> Interior Lighting >> Inspection and Verification >> Notes
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Inspection and Verification: Notes

WARNING: This page is about a different car, the 2003 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
  1. The interior lighting system is a generic electronic module (GEM) controlled system.
  2. Verify the customer concern by operating the interior lighting system.
  3. Visually inspect for the following obvious signs of mechanical and electrical damage.
    Fig 1: Identifying Visual Inspection Chart
    G01628504Courtesy of FORD MOTOR CO.
  4. If the concert remain after he 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 manual.
  6. Carry out the DATA LINK DIAGNOSTIC TEST. If the diagnostic tool responds with:
    • CKT914, CKT915 OR CKT70 = ALL ECUS NO RES/NOT EQUIP, refer to MODULE COMMUNICATIONS NETWORK .
    • NO RESP/NOT EQUIP for GEM, go to PINPOINT TEST A  .
    • SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostic for the GEM.
  7. If the DTCs retrieved are related to the concern, go to GEM DIAGNOSTIC TROUBLE CODE (DTC) INDEX  to continue diagnostics.
  8. If no DTCs related to the concern are retrieved, proceed to Symptom Chart  to continue diagnostics.