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 1730 (CRUISE CONTROL SYSTEM - SPEED CONTROL)DIAGNOSTIC TESTSSPEED CONTROLDTC INDEX
2009 Mercury Milan Premier, 3.0 1, AWD
DTC Index
2009 Mercury Milan Premier, 3.0 1, AWDSECTION DTC Index
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.
PCM DIAGNOSTIC TROUBLE CODE INDEX
| DTCs | Description | Action |
|---|---|---|
| P0500 | Vehicle Speed Sensor A | REFER to DIAGNOSTIC TESTS article to continue diagnosis of the vehicle speed sensor (VSS). |
| P0579 | Cruise Control Multifunction Input A Circuit Range/Performance | Go to Pinpoint Test C . |
| P0581 | Cruise Control Multifunction Input A Circuit High | Go to Pinpoint Test C . |
| P0720 | Output Shaft Speed Sensor Circuit | REFER to DIAGNOSTIC TESTS article to continue diagnosis of the output shaft speed (OSS) sensor. |
| P0721 | Output Shaft Speed Sensor Circuit Range/Performance | REFER to DIAGNOSTIC TESTS article to continue diagnosis of the OSS sensor. |
| P0722 | Output Shaft Speed Sensor Circuit No Signal | REFER to DIAGNOSTIC TESTS article to continue diagnosis of the OSS sensor. |
| P1500 | Vehicle Speed Sensor | REFER to DIAGNOSTIC TESTS article to continue diagnosis of the VSS. |
| P1501 | Vehicle Speed Sensor Out of Self-Test Range | REFER to DIAGNOSTIC TESTS article to continue diagnosis of the VSS. |
| P1572 | Brake Pedal Switch Circuit | Go to Pinpoint Test B . |
| P1703 | Brake Switch Out of Self-Test Range | Go to Pinpoint Test B . |
| P1705 | Transmission Range Circuit Not Indicating Park/Neutral During Self Test | REFER to DIAGNOSTIC TESTS article to continue diagnosis of the digital transmission range (TR) sensor. |
| All other DTCs | - | REFER to the Introduction - Gasoline Engines article. |
LIGHTING CONTROL MODULE (LCM) DIAGNOSTIC TROUBLE CODE INDEX
| DTCs | Description | Action |
|---|---|---|
| B1485 | Brake Pedal Input Circuit Short to Battery | REFER to DIAGNOSTIC TESTS article to continue diagnosis of the brake shift interlock actuator. |
ABS MODULE DIAGNOSTIC TROUBLE CODE INDEX
| DTCs | Description | Action |
|---|---|---|
| B1484 | Brake Pedal Input Open Circuit | REFER to DIAGNOSTIC TESTS article 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.