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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1597 (Hybrid Energy Storage System) >> Repair Instructions >> Drive Motor Battery 300-Volt Positive and Negative Cable Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    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.
    Fig 1: Identifying Battery Cable Terminal Fasteners
    GM2153770Courtesy of GENERAL MOTORS CORP.
  1. Disable the high voltage at both the drive motor generator battery assembly and the drive motor generator control module assembly. Refer to High Voltage Disabling .
  2. Remove the battery cable terminal fasteners (1) and reposition the cable terminals.
    3. Fig 2: Identifying Control Module Sight Shield & Screws
    GM2153622Courtesy of GENERAL MOTORS CORP.
  3. Remove the control module sight shield. Refer to Drive Motor Generator Control Module Sight Shield Replacement .
  4. Remove the right front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Left Side (Chevrolet) or Front Wheelhouse Liner Replacement - Left Side (GMC) .
  5. Remove the electric power steering control module. Refer to Electronic Power Steering Motor Control Module Replacement .
  6. Remove the 300 Volt positive and negative cable fasteners (1).
    7. Fig 3: Identifying 300 Volt Positive & Negative Cable Fasteners
    GM2153691Courtesy of GENERAL MOTORS CORP.
  7. Remove the 300 Volt positive and negative cable fasteners (1).
    8. Fig 4: View Of 300 Volt Positive & Negative Cable Fasteners
    GM2153709Courtesy of GENERAL MOTORS CORP.
  8. Remove the 300 Volt positive and negative cable fasteners (1).
    9. Fig 5: View Of 300 Volt Grommet Fasteners
    GM2153765Courtesy of GENERAL MOTORS CORP.
  9. Remove the 300 Volt cable floor grommet fasteners (1).
    10. Fig 6: View Of Drive Motor Battery 300 Volt Positive & Negative Cables
    GM2153832Courtesy of GENERAL MOTORS CORP.
  10. Push the drive motor battery 300 volt positive and negative cable through the floor grommet.
  11. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  12. Pull cable (1) rearward to remove cable from floor.
  13. Push cable (1) forward of the rear cross member.
  14. Pull the cable (1) out from under the rear cross member.
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