Circuit/System Verification

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

Vehicle in Service Mode.
Verify that DTC P0A85, P0BC8, P0BC9, P0BCA, P0D64, P0D65, or P0D66 is not set.
- If any DTC is set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If none of the DTCs are set
Visually inspect the inlet and outlet of the Hybrid/EV Battery Pack Cooling Fan ducts.
Verify the inlet and outlet are free of any debris or obstructions that will limit airflow through the duct.
- If any debris or obstructions are found
  Remove the obstruction to allow proper airflow and allow the Hybrid/EV Battery Pack to cool before retesting.
- Go to next step: If no debris or obstructions are found
Verify the Hybrid/EV Battery Pack Cooling Fan ducts are properly secured and are not crimped, crushed, or deformed in a manner that will limit airflow through the duct.
- If the ducts are unsecured or damaged
  Repair or replace as necessary and allow the Hybrid/EV Battery Pack to cool before retesting.
- Go to next step: If the ducts are properly secured and undamaged
Ignition ON.
Verify the scan tool Hybrid/EV Powertrain Control Module 2 Battery Temperature parameters are all less than 72°C (162°F).
- If 72°C (162°F) or greater
  Replace the applicable battery module.
- Go to next step: If less than 72°C (162°F)
All OK.