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 MANUALSLINCOLN2009TOWN CAR SIGNATURE LIMITED, 4.6 VREPAIR AND DIAGNOSISQUICK LOOKUPSDTC INDEXSTARTING SYSTEM DTCS
2009 Lincoln Town Car Signature Limited, 4.6 V
Starting System DTCS
2009 Lincoln Town Car Signature Limited, 4.6 VSECTION Starting System DTCS
PCM DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| P0705 | Digital Transmission Range (TR) Sensor Circuit Failure | Refer to the appropriate Automatic Transmission article for the procedure. |
| P0708 | Digital TR Sensor Circuit Open | Refer to the appropriate Automatic Transmission article for the procedure. |
| P1702 | Intermittent DTC P0705 or P0708 | Refer to the appropriate Automatic Transmission article for the procedure. |
| P1704 | Digital TR Circuit Reading in Between Gear Position During Key ON Engine OFF (KOEO)/Key ON Engine Running (KOER) | Refer to the appropriate Automatic Transmission article for the procedure. |
| P1705 | Digital TR Self Test Was Not Carried Out in PARK or NEUTRAL | Refer to the appropriate Automatic Transmission article for the procedure. |
PASSIVE ANTI-THEFT SYSTEM (PATS) - DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Perform Test |
|---|---|---|---|
| B1213 | Anti-Theft Number of Programmed Keys is Below Minimum | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B1342 | Electronic Control Unit (ECU) is Defective | PCM | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS article. |
| B1600 | Passive Anti-Theft System (PATS) Ignition Key Transponder Signal is Not Received | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B1601 | PATS Received Incorrect Key-Code From Ignition Key Transponder | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B1602 | PATS Received Invalid Format of Key-Code From Ignition Key Transponder | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B1681 | PATS Transceiver Module Signal is Not Received | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B2103 | Antenna Not Connected | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B2431 | Transponder Programming Failed | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| P1260 | Theft Detected, Vehicle Immobilized | PCM | If there are any other PATS DTCs, ADDRESS them first. If DTC P1260 is the only DTC present, there may be a power or ground issue with the PCM. REFER to the Introduction - Gasoline Engines 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.