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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 323 (Engine Controls (Except Diesel & Hybrid) - DTC P164A - P2A04, DTC U0046- U300C) >> DTC U300C: Ignition Input Off/On/Start

DTC U300C: Ignition Input Off/On/Start

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DTC U300C: IGNITION INPUT OFF/ON/START

Description:  The PCM monitors the ignition key state. This DTC sets when the key state is not available.
Possible Causes: 
  • ISP-R circuit open
  • ISP-R circuit short to ground
Diagnostic Aids: 
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST B .