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Drive Motor Generator Battery Control Module and Bracket Replacement

WARNING: This page is about a different car, the 2009 GMC Yukon, 2009 Chevrolet Tahoe, and 2009 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Drive Motor Generator Battery Control Module and Bracket
GM1971851Courtesy of GENERAL MOTORS CORP.
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 will perform the following tasks:
  • 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.

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

Preliminary Procedures

  1. Disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling .
  2. Remove the upper cover, front cover and the right side cover. Refer to Drive Motor Battery Case Upper Cover, Front Cover, and Right Side Cover Replacement .
  3. Remove the drive motor battery current sensor. Refer to Drive Motor Battery Current Sensor Replacement .
1 Drive Motor Generator Battery Positive Relay Insulator Nut (Qty: 3)
CAUTION: Refer to Fastener Caution .

Tighten:  6 N.m (53 lb in)

2 Drive Motor Battery Power Inverter Current Limit Relay Connector
3 Drive Motor Battery Control Module Bracket Bolt (Qty: 2)

Tighten:  5 N.m (44 lb in)

4 Drive Motor Battery Control Module Lower Bracket
5 Drive Motor Battery Control Module Upper Bracket Bolt (Qty: 2)

Tighten:  5 N.m (44 lb in)

6 Drive Motor Battery Control Module Upper Bracket
7 Drive Motor Generator Battery Control Module Assembly

Procedure

  1. Disconnect all connectors from the module.
  2. After the control module assembly has been replaced and the re-assembly of the drive motor generator battery, enable the HV system. Refer to High Voltage Enabling .