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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 P0A9C-P0A9F, P0AC6-P0AC9, P0ACB-P0ACE, P0AE9-P0AEC, P0BC3-P0BC6, P0C34-P0C37, P0C7D-P0C80, P0C82-P0C85, P0C89, P0C8A-P0C8C, P0C8E-P0C91, P0C93-P0C96, P0C98-P0C9B, P0CA9-P0CAC, P0CAE-P0CB1, P0CB3-P0CB6 or P0CB8-P0CBB: Hybrid/EV Battery Temperature Sensor >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
WARNING:

Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed.

The High Voltage Disabling procedure will perform the following tasks:

  • Identify how to disable high voltage.
  • Identify how to test for the presence of high voltage.
  • Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed.

Failure to follow the procedures exactly as written may result in serious injury or death.

  1. Vehicle OFF, disable the high voltage at the A4 Hybrid/EV Battery Pack. Refer to High Voltage Disabling .
  2. Remove the A4 Hybrid/EV Battery Pack cover. Refer to High Voltage Battery Cover Replacement .
    NOTE: If a service replacement battery section is required, the replacement battery section will need to have its cell voltages balanced (matched) to the remaining battery sections with the EL-50332  Hybrid/EV Battery Service Tool. The EL-50332  connects to the replacement section(s) via alligator clamps. To facilitate connection of the alligator clamps, always install a replacement section into the C4D Hybrid/EV Battery Section 4 or C4E Hybrid/EV Battery Section 5 location. Reposition the existing C4D or C4E battery section into the location of the battery section requiring replacement as applicable.
  3. Disconnect the X3 harness connector at the Hybrid/EV battery interface control module for the appropriate C4 Hybrid/EV Battery Section.
    NOTE: The Hybrid/EV Battery Section schematics in Energy Storage identify the battery section and voltage sense circuit terminal locations appropriate to each cell group and corresponding DTC.
  4. Connect the EL-48571  High Voltage Battery Pinout Box with the EL-48571-45  Battery Pinout Box Adapter to the appropriate battery section.
  5. Insert the DMM probes into the EL-48571  pinout box test cavities.
  6. Test for 10 - 15 kΩ at 19 - 24°C (66.2 - 75.2°F) by cycling the EL-48571  pinout box switches to the correct position for the appropriate temperature sensor. Refer to the EL-48571 High Voltage Battery Pin Out Box Reference .
    • If not between 10 - 15 kΩ 

      Replace the battery section.

    • If between 10 - 15 kΩ 
  7. Replace the hybrid/EV battery interface control module.
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