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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 42 (MULTIFUNCTION Electronic Modules -- F250-F550 Super Duty) >> Diagnosis And Testing >> Upfitter Relay Box >> Inspection and Verification

Inspection and Verification

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the customer concern.
  2. Visually inspect for obvious signs of electrical damage.
    VISUAL INSPECTION CHART

    Electrical
    • Battery Junction Box (BJB) fuse(s):
      • 94 (25A) (upfitter relay 1)
      • 95 (25A) (upfitter relay 2)
    • Body Control Module (BCM) fuse(s):
      • 2 (15A) (upfitter relay 4)
      • 9 (10A) (upfitter relay 3)
      • 44 (10A) (upfitter switches)
    • Wiring, terminals or connectors
    • Upfitter relay(s)
    • Upfitter switch
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  4. If the cause is not visually evident, verify the symptom and GO to SYMPTOM CHART .