Removal Procedure

WARNING:

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

Safety glasses with appropriate side shields when within 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 at all times when working with the high voltage battery assembly, whether the system is energized or not.

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

High Voltage Battery Cover Replacement - Remove
Fig 1: Identifying Battery Energy Control Module Connectors With Disconnect Sequence (1 Of 2)
Courtesy of GENERAL MOTORS COMPANY
CAUTION:
The battery energy control modules internal cell balancing circuitry is powered by the cell group voltage sense circuits. In order to prevent an unrecoverable, unbalanced Hybrid/EV battery section or internal control module damage, always take the following actions:
1. Disconnect ALL of the battery energy control module connectors prior to disconnecting any Hybrid/EV battery section connector.
2. Reconnect all the Hybrid/EV battery section connectors prior to reconnecting the battery energy control module connectors.
3. Disconnect and reconnect the battery energy control module connectors ONLY in the sequence provided in Repair Instructions.
Disconnect the battery energy control module connectors in the sequence shown above.
Fig 2: Identifying Battery Energy Control Module Connectors With Disconnect Sequence (2 Of 2)
Courtesy of GENERAL MOTORS COMPANY

Disconnect the battery energy control module connectors in the sequence shown above.
Courtesy of GENERAL MOTORS COMPANY

Retaining Tab (1) - Disconnect [3x]
Battery Energy Control Module - Remove