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.
2004 Lincoln LS 3.9 AFACTORY OEM SERVICE PROCEDURE
Rear Electronic Module DTCS
REAR ELECTRONIC MODULE (REM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Perform Test |
|---|---|---|---|
| B1342 | ECU Is Defective | REM | REFER to MODULE COMMUNICATIONS NETWORK - LS . |
| B1676 | Battery Pack Voltage Out of Range | REM | REFER to GENERATORS & REGULATORS . |
| B2477 | Module Configuration Failure | REM | REFER to MODULE COMMUNICATIONS NETWORK - LS . |
Factory Service Tools
Use the Manual With the Right Hardware
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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.