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DTC P1409: EGR Vacuum Regulator (EGRVR) Solenoid Circuit Malfunction

P1409 - EGR VACUUM REGULATOR (EGRVR) SOLENOID CIRCUIT MALFUNCTION

Description:  This test checks the electrical function of the EGRVR solenoid. The test fails when the EGRVR circuit voltage is either too high or too low when compared to the expected voltage range. The EGR system must be enabled for the test to be completed.
Possible Causes: 
  • EGRVR circuit open
  • VPWR open to EGRVR solenoid
  • EGRVR circuit short to VPWR or GND
  • Damaged EGRVR solenoid
Diagnostic Aids:  The EGR vacuum regulator solenoid resistance is between 26 and 40 ohms.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
Vehicles with an EGR system module (ESM) GO to HH: Exhaust Gas Recirculation System Module (ESM) STEP HH21.
All others GO to HE: Exhaust Gas Recirculation (EGR) Systems STEP HE59. GO to HE: Exhaust Gas Recirculation (EGR) Systems STEP HE59. GO to HE: Exhaust Gas Recirculation (EGR) Systems STEP HE64.
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