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Home >> Ford >> 2012 >> Explorer Base, 2.0 9 >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (MULTIFUNCTION Electronic Modules) >> Diagnosis And Testing >> Upfitter Relay Box >> Symptom Chart

Symptom Chart

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM CHART

Condition Possible Sources Action
  • The upfitter switch controlled component is inoperative
  • Fuse
  • Wiring, terminals or connectors
  • Customer installed accessory
  • Upfitter relay
  • Upfitter switch
  • Body Control Module (BCM)
  • The upfitter switch on indicator is inoperative
  • Upfitter switch
  • INSTALL a new upfitter switch. REFER to UPFITTER SWITCH . TEST the system for normal operation.