Circuit/System Verification

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON.
Verify that DTC P0480, P0481, P0691, P0692, P0693, or P0694 is not set.
- If a DTC is set
  Refer to DTC P0480, P0481, P0691, P0692, P0693, or P0694 .
- If no DTCs is set
Verify that both cooling fans turn ON and OFF and operate at low and high speed, when commanding the appropriate cooling fan relays ON and OFF with a scan tool.
- If a cooling fan does not operate
  Refer to Circuit/System Testing
- If both cooling fans operate
All OK.