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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Engine Mechanical - 2.0L (LTG) Or 2.5L (LCV) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC C047C: Engine Mount Actuator >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

Dynamic Test

  1. Disconnect the harness connector at the Q80L Engine Mount Solenoid Valve-Left.
  2. Install a 10A fused jumper wire between the B+ terminal 2 and 12 V. Install a jumper wire between the control terminal 1 and ground.
  3. Verify the Q80L Engine Mount Solenoid Valve-Left turns on and off or clicks.
    • If the Q80L Engine Mount Solenoid Valve-Left does not turn and off or click 

      Replace the Q80L Engine Mount Solenoid Valve-Left.

    • If the Q80L Engine Mount Solenoid Valve-Left does turn on and off or clicks 
  4. All OK