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 MANUALSLINCOLN2006TOWN CAR EXECUTIVE L, 4.6 VREPAIR AND DIAGNOSISQUICK LOOKUPSDTC INDEXCRUISE CONTROL SYSTEM DTCSSPEED CONTROL
2006 Lincoln Town Car Executive L, 4.6 V
Speed Control
2006 Lincoln Town Car Executive L, 4.6 VSECTION Speed Control
POWERTRAIN CONTROL MODULE DIAGNOSTIC TROUBLE CODE LIST
| DTCs | Description | Source | Perform Test |
|---|---|---|---|
| P0500 | Vehicle Speed Sensor (VSS) Malfunction | PCM | REFER to AUTOMATIC TRANSAXLE/TRANSMISSION to continue diagnosis of the VSS. |
| P0579 | Cruise Control Multifunction Input A Circuit Range/Performance | PCM | GO to PINPOINT TEST C . |
| P0581 | Cruise Control Multifunction Circuit High | PCM | GO to PINPOINT TEST C . |
| P0720 | Output Shaft Speed (OSS) Sensor Circuit | PCM | REFER to AUTOMATIC TRANSAXLE/TRANSMISSION to continue diagnosis of the OSS sensor. |
| P0721 | Output Shaft Speed (OSS) Sensor Circuit Range/Performance | PCM | REFER to AUTOMATIC TRANSAXLE/TRANSMISSION to continue diagnosis of the OSS sensor. |
| P0722 | Output Shaft Speed (OSS) Sensor Circuit No Signal | PCM | REFER to AUTOMATIC TRANSAXLE/TRANSMISSION to continue diagnosis of the OSS sensor. |
| P1500 | Vehicle Speed Sensor (VSS) Intermittent | PCM | REFER to AUTOMATIC TRANSAXLE/TRANSMISSION to continue diagnosis of the VSS. |
| P1501 | Vehicle Speed Sensor (VSS) Out of Self-Test Range | PCM | REFER to AUTOMATIC TRANSAXLE/TRANSMISSION to continue diagnosis of the VSS. |
| P1572 | Brake On/Off Circuit Failure | PCM | GO to PINPOINT TEST B . |
| P1703 | Brake On/Off Circuit Failure | PCM | GO to PINPOINT TEST B . |
| P1705 | Transmission Range Sensor Out of Self-Test Range | PCM | REFER to AUTOMATIC TRANSAXLE/TRANSMISSION to continue diagnosis of the digital transmission (TR) range sensor. |
| All other DTCs | - | PCM | REFER to the INTRODUCTION - GASOLINE article. |
LIGHTING CONTROL MODULE DIAGNOSTIC TROUBLE CODE LIST
| DTCs | Description | Source | Perform Test |
|---|---|---|---|
| B1485 | Brake Pedal Input Circuit Short to Battery | LCM | REFER to EXTERIOR LIGHTING to continue diagnosis of the stoplamp switch. |
ANTI-LOCK BRAKE SYSTEM MODULE DIAGNOSTIC TROUBLE CODE LIST
| DTCs | Description | Source | Perform Test |
|---|---|---|---|
| B1484 | Brake Pedal Input Open Circuit | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS to continue diagnosis of the stoplamp switch. |
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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.