P1409 Acura EVR Control Circuit Malfunction

P1409 Acura EVR Control Circuit Malfunction

Possible causes
  • EGRVR circuit open.
  • VPWR open to EGRVR solenoid.
  • EGRVR circuit short to VPWR or GND.
  • Damaged EGRVR solenoid.
  • Damaged PCM.
    • Tech description
    The EGR vacuum regulator solenoid resistance is between 26 and 40 ohms.
    Symptoms
    – Engine Light ON (or Service Engine Soon Warning Light)
    P1409 Acura 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.

    Acura Vehicle:

    Acura ILX, Acura MDX, Acura RDX, Acura RLX, Acura TL, Acura TSX, Acura ZDX, Acura CSX, Acura EL, Acura Integra, Acura RSX, Acura Legend, Acura Vigor, Acura CL, Acura SLX, Acura NSX, Acura RL, Acura ZDX