Circuit/System Verification

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.

Ignition ON.
Verify that DTC P0480, P0691, or P0692, is not set.
- If a DTC is set
  Refer to DTC P0480, P0691, or P0692 (LCV) DTC P0480, P0691, or P0692 (LGX) .
- If no DTC is set.
Verify the scan tool Cooling Fan Motor Command parameter is less than 4%.
- If 4% or greater
  Refer to Diagnostic Aids and Symptoms - Engine Cooling for further diagnosis.
- If less than 4%
Verify that the G10 Cooling Fan Motor is not operating.
- If the G10 Cooling Fan Motor is operating
  Refer to Circuit/System Testing.
- If the G10 Cooling Fan Motor is not operating
All OK.