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 MANUALSMERCURY2011MARINER PREMIER, 2.5 7, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXCRUISE CONTROL SYSTEM DTCSPCM
2011 Mercury Mariner Premier, 2.5 7, AWD
Cruise Control System DTCS: Pcm
2011 Mercury Mariner Premier, 2.5 7, AWDSECTION Pcm
PCM DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action |
|---|---|---|
| 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 . |
| P1572 | Brake Switch Circuit | GO to PINPOINT TEST B . |
| P1703 | Brake Switch Out of Self-Test Range | GO to PINPOINT TEST B . |
| All other DTCs | - | REFER to the INTRODUCTION 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.