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Home >> Chevrolet >> 2014 >> Impala LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Hybrid/EV System Energy Storage) >> Repair Instructions >> Generator Control Module Replacement >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Drive Motor Battery Cooling Blower Outlet Duct Fastener
    GM2571127Courtesy of GENERAL MOTORS COMPANY
  1. Install the generator control module cooling air outlet duct (2).
  2. Fig 2: Generator Control Module Cooling Air Outlet Duct And Tighten Fasteners
    GM2601904Courtesy of GENERAL MOTORS COMPANY
  3. Install the lower fasteners (1) but do not tighten.
  4. Inspect the foam seals for tears and leak paths, to ensure they will not compromise the internal air flow through the generator control module assembly.
  5. Fig 3: Generator Control Module
    GM2596567Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Use factory fasteners to create threads into NEW unthreaded New generator control module. Factory fasteners are self threading and taping holes are not necessary.

    CAUTION:

    Refer to Fastener Caution .

    NOTE:

    Do not slide the generator control module on the foam seals as the seals may become damaged.

  6. Install the generator control module (3) to the support tray studs. Tighten the fastener (1) to 9 N.m (80 lb in).
  7. Tighten the remaining fasteners (2) to 9 N.m (80 lb in).
  8. Fig 4: Drive Motor Battery Wire Junction Block Relay
    GM2680586Courtesy of GENERAL MOTORS COMPANY
  9. Place the drive motor battery wire junction block relay (2) and the battery energy control module wiring junction block (1), on top of the generator control module.
  10. Fig 5: High Voltage Bus Fasteners
    GM2701369Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Critical high voltage fastener. Perform second torque verification check following re-assembly.

  11. Install the high voltage bus fasteners (1) to the drive motor battery wiring junction block relay assembly (2) and tighten to 9 N.m (80 lb in).
  12. Fig 6: Drive Motor Battery Wire Junction Block Relay
    GM2680588Courtesy of GENERAL MOTORS COMPANY
  13. Install the battery energy control module wiring junction block fasteners (1) and tighten to 9 N.m (80 lb in).
  14. Install the drive motor battery wiring junction block relay fasteners (3) and tighten to 9 N.m (80 lb in).
  15. Fig 7: Generator Control Module Connector
    GM2596589Courtesy of GENERAL MOTORS COMPANY
  16. Connect the generator control module X4 connector (1).
  17. Enable the high voltage at the A4 hybrid battery pack. Refer to High Voltage Enabling .
  18. Program the generator control module. Refer to Control Module References .