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 MANUALSMERCURY2010MARINER HYBRID, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1025 (STEERING COLUMN SWITCHES)
2010 Mercury Mariner Hybrid, AWD
Section 1025 (Steering Column Switches)
2010 Mercury Mariner Hybrid, AWDSECTION Section 1025 (Steering Column Switches)
WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- Description And Operation
- Diagnostic Tests
- Steering Column Switches
- Notes
- Principles of Operation
- Inspection and Verification
- Symptom Chart
- Pinpoint Tests
- Pinpoint Test A: No Power In All Ignition Switch Positions
- Pinpoint Test B: No Power in ACC
- Pinpoint Test C: No Power in RUN
- Pinpoint Test D: No Power in START
- Pinpoint Test E: B2A20 - Ignition Stuck in START
- Pinpoint Test F: DTCs B2844 and U2472 - Ignition Fault and Unexpected Ignition State
- Pinpoint Test G: The Ignition Key Cannot Be Removed from the Ignition Cylinder or the Ignition Key Can Be Removed from the Ignition Cylinder Regardless of Gear Selector Position
- Component Tests
- Steering Column Switches
- Removal And Installation
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.