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Home >> Chevrolet >> 2017 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Hybrid/EV Energy Storage System) >> Repair Instructions >> Hybrid/EV Battery Cell Balancing >> Circuit/System Testing >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Connect the EL-50332-145  Black Banana Jack Cable, EL-50332-150  Red Banana Jack Cable and EL-50332-155  Green Banana Jack Cable to the EL-50332-105  Universal Fuse Box.
    NOTE: Before balancing a battery section, make sure all of the external EL-50332 components and cables are in good condition and working order.
  2. Connect the EL-50332-120  High Voltage Interface Cable to the EL-50332-105  Universal Fuse Box.
  3. Connect the EL-50332-120  High Voltage Interface Cable to the EL - 50332  Hybrid/EV Battery Service Tool.
  4. Connect the EL-50332-210  Cable, X3 HPCM2 Low Voltage Adapter to the EL-50332-110  Vehicle Interface Module.
  5. Connect the EL-50332-125  Vehicle Interface Module Low Voltage 24-Pin Cable to the EL-50332-110  Vehicle Interface Module.
  6. Connect the EL-50332-125  Vehicle Interface Module Low Voltage 24-Pin Cable to the EL-50332  Hybrid/EV Battery Service Tool.
  7. Connect the appropriate regional power cord to the EL-50332  Hybrid/EV Battery Service Tool.
    NOTE: Refer to the Special Tools for the correct regional power cord.
  8. Connect the appropriate regional power cord into a known good power outlet.
  9. Turn ON the EL - 50332  Hybrid/EV Battery Service Tool using the power switch.
  10. At the MAIN MENU, select SECTION BALANCE, press the SELECT soft key.
  11. At the TYPE menu, select HEV4, press the NEXT soft key.
  12. At the TARGET menu, select appropriate section to be balanced, press the NEXT soft key.
  13. Connect the EL-50332-155  Green Banana Jack Cable to the A4 Hybrid/EV Battery Pack ground stud.
  14. Connect the EL-50332-145  Black Banana Jack Cable to the C4D Hybrid/EV Battery Section 4 or C4E Hybrid/EV Battery Section 5 negative stud as appropriate. Refer to Hybrid/EV Energy Storage Schematics  for C4D Hybrid/EV Battery Section 4 or C4E Hybrid/EV Battery Section 5 location.
  15. Connect the EL-50332-150  Red Banana Jack Cable to the C4D Hybrid/EV Battery Section 4 or C4E Hybrid/EV Battery Section 5 positive stud as appropriate. Refer to Hybrid/EV Energy Storage Schematics  for C4D Hybrid/EV Battery Section 4 or C4E Hybrid/EV Battery Section 5 location.
  16. Press the NEXT soft key.
  17. Connect the EL-50332-210  Cable, X3 HPCM2 Low Voltage Adapter to the A4 Hybrid/EV Battery Pack.
  18. Press the NEXT soft key.
    NOTE: Depending on the charge condition of the battery pack and the section being balanced, this process may take up to 4 hours to complete.
  19. An audible tone will sound at the end of balancing or in the event of a fault condition.
    NOTE: The EL-50332  will now balance the selected section by charging/discharging, as appropriate. Target voltage varies based on measured pack cell group voltages. Initial balancing will be in a constant current mode (max 5 amp charge, 7.5 amp discharge). The tool will transition to a constant voltage mode (decreasing current) near the end of the event. A warranty code and pack voltage current data will be displayed at the conclusion of the balancing event.
    • A fault condition was detected 

      Refer to the EL - 50332  Hybrid/EV Battery Service Tool Instruction Manual.

    • Section balancing completed successfully 
  20. At the Completed menu, press the NEXT soft key. Record warranty code. Press the EXIT soft key.
  21. Disconnect the EL - 50332  Hybrid/EV Battery Service Tool from the Hybrid/EV Battery Pack.
  22. All OK.
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