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.
2002 Lincoln Town Car BaseFACTORY OEM SERVICE PROCEDURE
Power Windows DTCS
POWER WINDOWS DRIVER DOOR MODULE (DDM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Logged As | Description | DTC Caused By | Perform Test |
|---|---|---|---|---|
| B1322 | Continuous, On-Demand | Door Ajar LF Circuit Failure | DDM | GO to KEYLESS ENTRY/COMPUTER OPERATED LOCKS . |
| B1342 | Continuous, On-Demand | ECU Is Defective | DDM | REPLACE the DDM. |
| B1396 | Continuous, On-Demand | Power Door Lock Circuit Short to Battery | DDM | GO to KEYLESS ENTRY/COMPUTER OPERATED LOCKS . |
| B1397 | Continuous, On-Demand | Power Door Unlock Circuit Short to Battery | DDM | GO to KEYLESS ENTRY/COMPUTER OPERATED LOCKS . |
| B1402 | Continuous, On-Demand | LF Pwr Window Down SW-Ckt Failure | DDM | GO to PINPOINT TEST A . |
| B1529 | Continuous, On-Demand | Memory Set Switch Circuit Short to Battery | DDM | GO to REAR VIEW MIRRORS . |
| B1533 | Continuous, On-Demand | Memory 1 Switch Circuit Short to Battery | DDM | GO to REAR VIEW MIRRORS . |
| B1537 | Continuous, On-Demand | Memory 2 Switch Circuit Short to Battery | DDM | GO to REAR VIEW MIRRORS . |
| B1545 | Continuous, On-Demand | Seat Direction Switch Assembly Circuit Short to Battery | DDM | GO to SEATING . |
| B1549 | Continuous, On-Demand | Power Window Master Circuit Short to Battery | DDM | GO to PINPOINT TEST A . |
| B1553 | Continuous, On-Demand | Decklid Release Circuit Short to Battery | DDM | GO to KEYLESS ENTRY/COMPUTER OPERATED LOCKS . |
| B1566 | Continuous, On-Demand | Door Ajar Circuit Short to Ground | DDM | GO to KEYLESS ENTRY/COMPUTER OPERATED LOCKS . |
| B2338 | Continuous, On-Demand | Mirror Switch Assembly Circuit Short to Ground | DDM | GO to REAR VIEW MIRRORS . |
| B2368 | On-Demand | Memory LED Output Short to Vbatt | DDM | GO to REAR VIEW MIRRORS . |
| B2373 | On-Demand | LED #1 Circuit Short to Battery | DDM | GO to REAR VIEW MIRRORS . |
| B2425 | Continuous | RKE Out of Sync | DDM | GO to KEYLESS ENTRY/COMPUTER OPERATED LOCKS . |
| C1920 | On-Demand | LED #1 Circuit Failure | DDM | GO to REAR VIEW MIRRORS . |
| U1041 | Continuous | SCP Invalid or Missing Data for Vehicle Speed | ABS | GO to ANTI-LOCK CONTROL - TRACTION CONTROL , Inspection and Verification to continue diagnosis. |
| U1059 | Continuous | SCP Invalid or Missing Data for Transmission/Transaxle/PRNDL | PCM | REFER to SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV . |
| U1135 | Continuous | SCP Invalid or Missing Data for Ignition Switch/Starter | LCM | GO to STEERING COLUMN SWITCHES , Inspection and Verification to continue diagnosis. |
| U1262 | Continuous | SCP Communication Bus Fault | - | REPAIR all DTCs related to the concern first. If U1262 is still retrieved GO to MODULE COMMUNICATIONS NETWORK , Communication Network Diagnostics. |
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.