LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 357 (Engine Cooling System) >> Diagnostic Information and Procedures >> Cooling Fan Always On >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF.
  2. Disconnect the X100 harness connector at the K22 Cooling Fan Control Module, ignition ON.
  3. Verify that the G10 Cooling Fan Motor is not operating.
    • If the G10 Cooling Fan Motor is operating 
    1. Ignition ON.
    2. Test for less than 1 V between the K22 Cooling Fan Control Module harness connector terminal 1 and ground.
      • If 1 V or greater, repair the short to voltage in the circuit.
    • If the G10 Cooling Fan Motor is not operating 
  4. Replace the K22 Cooling Fan Control Module.
scientia non olet · About LEMON Manuals