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 MANUALSMERCURY2009MOUNTAINEER 4.6 8, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 118 (HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS)DIAGNOSTIC TESTSLOCKS, LATCHES & ENTRY SYSTEMSDTC CHARTS
2009 Mercury Mountaineer 4.6 8, RWD
DTC Charts
2009 Mercury Mountaineer 4.6 8, RWDSECTION DTC Charts
WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
DRIVER DOOR MODULE (DDM) DIAGNOSTIC TROUBLE CODE INDEX
| DTC | Description | Action |
|---|---|---|
| B1148 | Radio Frequency Power Output Circuit Short to Ground | Go to Pinpoint Test N . |
| B1149 | Radio Frequency Enable Output Circuit Short to Battery | Go to Pinpoint Test N . |
| B1150 | Radio Frequency Enable Output Circuit Short to Ground | Go to Pinpoint Test N . |
| B1151 | Radio Frequency AM/FM Signal Key Select Output Circuit Short to Ground | Go to Pinpoint Test N . |
| B1152 | Radio Frequency AM/FM Signal Key Select Output Circuit Short to Battery | Go to Pinpoint Test N . |
| B1396 | Power Door Lock Circuit Short To Battery | Go to Pinpoint Test C . |
| B1397 | Power Door Unlock Circuit Short To Battery | Go to Pinpoint Test C . |
| B1553 | Decklid Release Circuit Short To Battery | Go to Pinpoint Test B . |
| B2276 | Less Than 2 Transmitters Programmed | Go to Pinpoint Test F . |
| B2425 | Remote Keyless Entry Transmitter Out Of Synchronization | Go to Pinpoint Test M . |
| B2695 | Keypad_A Switch Circuit Failure | Go to Pinpoint Test E . |
| B2696 | Keypad_B Switch Circuit Failure | Go to Pinpoint Test E . |
| B2697 | Keypad_C Switch Circuit Failure | Go to Pinpoint Test E . |
| B2718 | Liftgate/Decklid Ajar Output Short to Battery | Go to Pinpoint Test B . |
| All other DTCs | - | REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
RENDER: 1.0x
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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.