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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 11 (Engine Controls And Fuel - 6.0L (L96) - DTC P0351 To DTC P2636 And Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> DTC P0449, P0498 Or P0499: Evaporative Emission (EVAP) Vent Solenoid Valve Control Circuit >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the Q13 Evaporative Emission Vent Solenoid Valve.
  2. Test for 10-30 Ω between the control terminal B or 1 and the B+ circuit terminal A or 2.
    • If not between 10-30 Ω 

      Replace the Q13 Evaporative Emission Vent Solenoid Valve.

    • Go to next step: If between 10-30 Ω 
  3. All OK.
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