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U300C - Ignition Input Off/On/Start

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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: POWERTRAIN CONTROL MODULE (PCM) POWER RELAY .
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