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DTC P0403 - EGR A Control Circuit/Open

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DTC DESCRIPTION P0403 - EGR A CONTROL CIRCUIT/OPEN

Description:  This DTC sets when the PCM detects an EGR control circuit concern.
Possible Causes: 
  • EGRVCL circuit short to ground
  • EGRVCH circuit short to ground
  • EGRVCL circuit short to voltage
  • EGRVCH circuit short to voltage
  • EGRVCL circuit open
  • EGRVCH circuit open
  • Damaged EGR valve
Diagnostic Aids:   
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST W .
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