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DTC P0405 - EGR Sensor A Circuit Low

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DTC DESCRIPTION P0405 - EGR SENSOR A CIRCUIT LOW

Description:  This DTC sets when the EGRVP circuit voltage is less than the expected value.
Possible Causes: 
  • EGR circuit open
  • EGR circuit short to ground
  • VREF circuit open
  • Damaged exhaust gas recirculation valve position (EGRVP) sensor
  • Damaged EGR valve
Diagnostic Aids:  The presence of this DTC may indicate that the vehicle is operating in derate mode and may experience a loss of power. After repair, the vehicle may still display a system warning message. Drive the vehicle until the system warning message has cleared from the instrument cluster message center.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST W .