Removal Procedure
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.
- High Voltage Disabling - Disable
- Drive Motor Generator Power Inverter Module Cooling System Draining and Filling - Drain
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Remove the battery to battery positive cable retainers.
- Accessory DC Power Control Module High Voltage Connector Protector Nut (2) - Remove
- Accessory DC Power Control Module High Voltage Connector Protector Bolt (3), (4) - Remove
- Accessory DC Power Control Module High Voltage Connector Protector (5) - Remove
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Courtesy of GENERAL MOTORS COMPANY
Disconnect the high voltage connectors in the following sequence:
- Release the CPA. Push down on the connector tab, and release the connector.
After releasing the 2-stage safety connectors, remove the auxiliary power module connector (1).
Low Voltage Connection Connector (1) @ Accessory DC Power Control Module - Disconnect
Drive Motor Generator Control Module Cooling Outlet Hose (2) - Release Clamp (1) and Remove the Hose
- Electric Differential Drive Motor Power Inverter Module Cooling Hose (3) - Release Clamp (1) and Remove the Hose
Battery Negative Cable Extension Cable Fastener (1) - Remove
- Battery Positive Cable Protector (3) - Remove
- Battery Positive Cable and Nut (2) - Remove
- Battery Negative Cable Extension Cable & Battery Positive Cable - Remove
Accessory DC Power Control Module Bolt (1) - Remove [2x]
- Accessory DC Power Control Module Stud (2) - Remove
Engine Wiring Harness Bracket (1) - Position aside [2x]
Accessory DC Power Control Module (1) - Remove