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.
Inspection and Verification : Notes
2010 Mercury Mariner Hybrid, AWDSECTION Notes
WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- Verify the customer concern.
- Visually inspect the following for obvious signs of mechanical or electrical damage.VISUAL INSPECTION CHART
Mechanical Electrical - Audio unit
- Antenna or antenna cable
- Speaker mounting/speaker cones
- Radio ignition interference capacitor, radio frequency interference suppression bond, or radio receiver hood bonding strap
- Smart junction box (SJB) fuse(s):
- 7 (10A)
- 12 (5A)
- 16 (15A)
- Battery junction box (BJB) fuse(s):
- 7 (40A)
- 15 (20A) (Hybrid)
- 16 (25A)
- 21 (40A)
- 22 (40A) (Hybrid)
- 23 (40A) (Hybrid)
- Subwoofer amplifier
- Circuitry
- Audio unit
- If the concern is visually evident, go to Symptom Chart .
- If the concern is not visually evident, proceed to the Speaker Walk-Around Test and the Audio Unit Self-Diagnostic Mode.
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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.