WARNING: This page is about a different car, the 1997 Lincoln Mark VIII. However, it is still accessible from the selected car via links, so may be relevant.

Ensure ignition switch is in OFF position. Disconnect Black 12-pin connector C246 from rear of Message Center (MC) indicator module at center of instrument panel.
Using ohmmeter, check resistance between terminal No. 5 (Tan/Orange wire) on connector C246 and terminal No. 2 (Tan/Orange wire) on Data Link Connector (DLC). See Fig 1 . Note resistance and go to next step.
Using ohmmeter, check resistance between terminal No. 4 (Pink/Light Blue wire) on connector C246 and terminal No. 10 (Pink/Light Blue wire) on DLC. See Fig 1 . Note resistance and go to next step.
If resistance is 5 ohms or less on both circuits, go to next step. If resistance is more than 5 ohms on any circuit, repair open circuit on Tan/Orange wire or Pink/Light Blue wire between connector C246 and DLC. Repeat TEST A .
Inspect terminals No. 4 and 5 on connector C246 for damage. Also inspect corresponding pins on MC indicator module for damage. If terminals on connector C246 and pins on MC indicator module are okay, replace MC indicator module. Repeat TEST A . If terminals on connector C246 or pins on MC indicator module are damaged, repair as needed. Repeat TEST A .

Fig 1: Checking Resistance Between Connector C246 & DLC

Courtesy of FORD MOTOR CO.

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

Test K: No Response From Message Center (MC) Indicator Module

Use the Manual With the Right Hardware

When to See a Mechanic

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