WARNING: This page is about a different car, the 2003 Lincoln Aviator. However, it is still accessible from the selected car via links, so may be relevant.

Verify the customer concern by operating the system.
Visually inspect for obvious signs of electrical damage.

Fig 1: Visual Inspection Chart
Courtesy of FORD MOTOR CO.
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 diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
Carry out the DATA LINK DIAGNOSTICS test. If the diagnostic tool responds with:
- CKT693 = ALL ECUS NO RESP/NOT EQUIP, GO to PINPOINT TEST Q .
- NO RESPONSE/NOT EQUIP for vehicle security module, GO to PINPOINT TEST B .
- SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the vehicle security module.
If the DTCs retrieved are related to the concern, go to the DIAGNOSTIC TROUBLE CODE (DTC) Index to continue diagnostics.
If no DTCs related to the concern are retrieved, refer to the SYMPTOM CHART to continue diagnostics.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Inspection and Verification

Use the Manual With the Right Hardware

When to See a Mechanic