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Home >> Cadillac >> 2016 >> ELR >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Battery Management Systems >> Hybrid/EV System Energy Storage >> Repair Instructions >> Battery Charger and 14 V Power Module Maxi Fuse Replacement >> Removal Procedure

Removal Procedure

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 includes the following steps:

  • 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.

Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:

  • Safety glasses with appropriate side shields when within 15 meters (50 feet) of the vehicle, either indoors or outdoors.
  • Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
    • Visually and functionally inspect the gloves before use.
    • Wear the Insulation gloves with leather protectors at all times when working with the high voltage battery assembly, whether the system is energized or not.

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

  1. Disable the high voltage system. Refer to High Voltage Disabling .
  2. Disconnect and reposition the drive motor battery coolant cooler outlet hose (Battery Outlet to Valve) from the battery only. Refer to Drive Motor Battery Coolant Cooler Outlet Hose Replacement (Battery Outlet to Valve) .
  3. Fig 1: Multiuse Relay And Fuse Cover And Screws
    GM2534438Courtesy of GENERAL MOTORS COMPANY
  4. Remove the multiuse relay and fuse cover screws (1) from the drive motor battery.
  5. Remove the multiuse relay and fuse cover (2).
  6. Fig 2: Battery Protector And Maxi-Fuse
    GM2534437Courtesy of GENERAL MOTORS COMPANY
  7. Remove the battery protector (Insulator) (1).
  8. Remove the 14 V power module 20 amp maxi-fuse (2).
  9. Remove the battery charger 20 amp maxi-fuse (3).