SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1908 (HYBRID CONTROLS - 3.6L (HP5) - INTRODUCTION)REPAIR INSTRUCTIONSDRIVE MOTOR GENERATOR CONTROL MODULE ASSEMBLY REPLACEMENTREMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page is about a different car, the 2009 Saturn Vue. 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.
  1. Perform the High Voltage Disabling procedure. Refer to High Voltage Disabling .
    2. Fig 1: Identifying Generator Control Module Assembly Connectors & Fasteners
    GM2175739Courtesy of GENERAL MOTORS CORP.
  2. Disconnect the drive motor generator control module assembly connector (3).
  3. Slide the wire harness clip from the drive motor generator position sensor shield circuit harness terminal fastener.
  4. Remove the drive motor generator position sensor shield circuit harness terminal fastener (5).
  5. Remove the shield circuit harness terminal (4).
  6. Disconnect the accessory DC power control module (APM) assembly connector (2) using the following procedure:
    1. Remove the locking tab.
    2. Insert a small flat blade screwdriver into the locking tab area and raise the tab while pulling on the connector.
  7. Disconnect the remaining APM assembly connector (1).
  8. Drain the power electronics cooling system. Refer to Generator Control Module Cooling System Draining and Filling .
    9. Fig 2: HV dc Battery And Air Conditioning Compressor Module (ACCM) Cable Terminals & Fasteners
    GM2175740Courtesy of GENERAL MOTORS CORP.
  9. Remove the HV dc battery and air conditioning compressor module (ACCM) cable terminal fasteners (1) and installation guide assembly (2).
  10. Remove the HV dc electric ACCM cable mounting fasteners (5).
  11. Remove the HV dc electric ACCM cable (4) from the PIM distribution box.
  12. Remove the HV dc battery cable mounting fasteners (6).
  13. Remove the HV dc battery cable (7) from the PIM distribution box.
  14. Inspect and retain the seals (3).
    15. Fig 3: Drive Motor Generator Control Module Support Bracket & Bolts
    GM2175741Courtesy of GENERAL MOTORS CORP.
  15. Remove the windshield washer solvent container filler tube assembly bolt.
  16. Remove the drive motor generator control module support bracket bolts (1) and the support bracket (2).
  17. Place a protective guard (3) such as wiring conduit along the sharp edge of the front crossmember to protect the high voltage cables.
    18. Fig 4: PIM 3 Phase Cable Housing, Cover, Fasteners & Seals
    GM2175742Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.