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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSLINCOLN2009TOWN CAR SIGNATURE LIMITED, 4.6 VREPAIR AND DIAGNOSISQUICK LOOKUPSDTC INDEXBRAKE SYSTEM DTCS
2009 Lincoln Town Car Signature Limited, 4.6 V
Brake System DTCS
2009 Lincoln Town Car Signature Limited, 4.6 VSECTION Brake System DTCS
DRIVER SEAT MODULE (DSM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Perform Test |
|---|---|---|---|
| B1987 | Pedal Forward/Rearward Motor Stalled | DSM | Go to Pinpoint Test B under PINPOINT TESTS . |
| B1988 | Pedal Position Forward Switch Circuit Short to Battery | DSM | Go to Pinpoint Test B under PINPOINT TESTS . |
| B1989 | Pedal Position Rearward Switch Circuit Short to Battery | DSM | Go to Pinpoint Test B under PINPOINT TESTS . |
| B1990 | Pedal Forward/Rearward Potentiometer Feedback Circuit Failure | DSM | Go to Pinpoint Test C under PINPOINT TESTS . |
| B2275 | Pedal Forward/Rearward Potentiometer Feedback Circuit Short to Ground | DSM | Go to Pinpoint Test C under PINPOINT TESTS . |
| All other DSM DTCs | - | DSM | REFER to the Master DTC Table in MULTIFUNCTION ELECTRONIC MODULES article. |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.