Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1998 Lincoln Mark VIII BaseFACTORY OEM SERVICE PROCEDURE
Remote Keyless Entry Systems DTCS
REMOTE KEYLESS ENTRY SYSTEMS DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1525 | Keyless Entry Circuit Short To Voltage | DTC B1525 |
| U1199 | Invalid/Missing Data For External Access | DTC caused by Steering Column/Ignition/Lighting (SCIL) module. Using NGS tester, perform SCIL module self-test. |
STEERING COLUMN/IGNITION/LIGHTING (SCIL) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1342 | ECU Defective | Repair all other concerns. After all other concerns are repaired, clear all SCIL module DTC. Repeat SCIL module self-test. If DTC B1342 is retrieved again, replace SCIL module. |
| U1211 | SCP Invalid Or Missing Data For Restraints | Caused by Driver Seat Module (DSM) module. Using scan tool, perform DSM self-test. |
Factory Service Tools
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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.