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.
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HOMESERVICE MANUALSMERCURY2009MILAN PREMIER, 3.0 1, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1715 (INTERIOR LIGHTING SYSTEM)DIAGNOSTIC TESTSINTERIOR LIGHTINGDTC CHARTS
2009 Mercury Milan Premier, 3.0 1, AWD
DTC Charts
2009 Mercury Milan Premier, 3.0 1, AWDSECTION DTC Charts
WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
LIGHTING CONTROL MODULE (LCM) DIAGNOSTIC TROUBLE CODE INDEX
| DTC | Description | Action |
|---|---|---|
| B1334 | Decklid Ajar Rear Door Circuit Short To Ground | Go to Pinpoint Test J . |
| B1342 | ECU is Faulted | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new lighting control module (LCM). REFER to MULTIFUNCTION ELECTRONIC MODULES article. TEST the system for normal operation. |
| B1688 | Lamp Dome Input Circuit Short to Ground | Go to Pinpoint Test C . |
| All other DTCs | - | REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
DRIVER DOOR MODULE (DDM) DIAGNOSTIC TROUBLE CODE INDEX
| DTC | Description | Action |
|---|---|---|
| B1322 | Driver Door Ajar Circuit Short to Ground | Go to Pinpoint Test C . |
| B1342 | ECU is Faulted | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new driver door module (DDM). REFER to MULTIFUNCTION ELECTRONIC MODULES article. TEST the system for normal operation. |
| B1566 | Door Ajar Circuit Short to Ground | Go to Pinpoint Test C . |
| All other DTCs | - | REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
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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.