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Home >> Chevrolet >> 2017 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Hybrid/EV System Heating And Cooling) >> Diagnostic Information and Procedures >> DTC P0A7E: Hybrid/EV Battery Pack High Temperature >> Circuit/System Verification

Circuit/System Verification

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  1. Vehicle in Service Mode.
  2. Verify that DTC P0A85, P0BC8, P0BC9, P0BCA, P0D64, P0D65 or P0D66 is not set.
    • If none of the DTCs are set 
  3. Visually inspect the inlet and outlet of the Hybrid/EV Battery Pack Cooling Fan ducts.
  4. 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.

    • If no debris or obstructions are found 
  5. 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.

    • If the ducts are properly secured and undamaged 
  6. Ignition ON.
  7. 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.

    • If less than 72°C (162°F) 
  8. All OK.
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