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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 275 (Four Wheel Drive (4WD) Systems) >> Diagnosis And Testing >> Four Wheel Drive (4WD) Systems >> Principles of Operation >> Inspection and Verification

Inspection and Verification

WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the customer concern.
  2. Inspect for obvious signs of mechanical or electrical damage.
    VISUAL INSPECTION

    Mechanical Electrical
    • ATC  solenoid (part of rear axle)
    • PTU 
    • RDU 
    • Halfshafts and CV joints
    • Driveshaft and U-joints
    • Fluid leaks
    • Wheel/tire size and brand
    • Matching tire size and brand
    • Tire pressure
    • BJB  fuse 70 (15A)
    • AWD  relay
    • Wiring harness
    • Connector(s)
    • Circuitry
    • PCM
  3. If the DTCs retrieved are related to the concern, go to the DTC CHART . For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES .
  4. If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART .