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 DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - PINPOINT TEST DY: ENGINE OIL TEMPERATURE (EOT) THROUGH PINPOINT TEST HD: MISFIRE DETECTION MONITOR - (EXCEPT DIESEL & HYBRID)PINPOINT TEST FB: POWER TAKE OFF (PTO)INTRODUCTION
2011 Mercury Mariner Premier, 2.5 7, AWD
PINPOINT TEST FB: Power Take Off (PTO): Introduction
2011 Mercury Mariner Premier, 2.5 7, AWDSECTION Introduction
This pinpoint test is intended to diagnose the following:
- PTO switch
- harness circuit: PTO and PTOIL
- powertrain control module (PCM) (12A650)
Powertrain Control Module (PCM) Connector
For PCM connector views or reference values, refer to REFERENCE VALUES .
POWERTRAIN CONTROL MODULE (PCM) CONNECTOR PINS REFERENCE CHART
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| E-Series 6.8L | 170 PIN | B7 B42 B9 B26 |
PTORPM PTOIL PTOENG PTO |
| F-Series Super Duty | 190-PIN | B8 B11 B6 B22 |
PTORPM PTOIL PTOENG PTO |
| All other vehicles | 190-PIN | B8 B11 B6 B3 |
PTORPM PTOIL PTOENG PTO |
RENDER: 1.0x
NO RELATED
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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.