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P263C - Glow Plug Driver Performance

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P263C - GLOW PLUG DRIVER PERFORMANCE

Description:  This DTC sets by the glow plug control module (GPCM) to indicate an internal software error has occurred.
Possible Causes: 
  • An attempt was made to change the calibration
  • Aftermarket performance products
  • Module programming error
  • Internal GPCM error
Diagnostic Aids: 
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST AF .
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