Circuit/System Verification

WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON.
Verify that there are no cooling system DTCs set.
- If any DTCs are set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If no DTCs are set
Verify the scan tool parameters listed below display OFF.
- Cooling Fan Relay 1 Command
- Cooling Fan Relays 2 and 3 Command
- If a scan tool parameter displays ON
  Refer to Diagnostic Aids and Symptoms - Engine Cooling for further diagnosis.
- If both scan tool parameters display OFF
Verify that the fan is not activated.
- If the fan is operating
  Refer to Circuit/System Testing.
- If the fan is OFF
All OK.