Battery Energy Control Module Replacement

Fig 1: Battery Energy Control Module

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
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. Preliminary Procedures Disable the high voltage system. Refer to High Voltage Disabling . Remove the junction block relay. Refer to Drive Motor Battery Wire Junction Block Relay Replacement .
1	Battery Energy Control Module Fastener (Qty: 2) CAUTION: Refer to Fastener Caution . NOTE: Critical high voltage fastener. Perform second torque verification check following re-assembly. Tighten 9 N.m (80 lb in)
2	Battery Energy Control Module Procedure Disconnect the electrical connectors. Enable the high voltage system. Refer to High Voltage Enabling . Refer to Control Module References for programming and setup.

Callout

Component Name

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.

Preliminary Procedures

Disable the high voltage system. Refer to High Voltage Disabling .
Remove the junction block relay. Refer to Drive Motor Battery Wire Junction Block Relay Replacement .

Battery Energy Control Module Fastener (Qty: 2)

CAUTION: Refer to Fastener Caution .

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

Tighten
9 N.m (80 lb in)

Battery Energy Control Module

Procedure

Disconnect the electrical connectors.
Enable the high voltage system. Refer to High Voltage Enabling .
Refer to Control Module References for programming and setup.