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HOMESERVICE MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 139 (HYBRID ENGINE ELECTRICAL SYSTEM)REPAIR INSTRUCTIONSBATTERY POSITIVE CABLE REPLACEMENT (CONTROL MODULE TO AUXILIARY BEC)REMOVAL PROCEDURE
2009 Chevrolet Tahoe Base, 4.8 C

Removal Procedure

2009 Chevrolet Tahoe Base, 4.8 CSECTION Removal Procedure
WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of BEC Cover
    GM1968591Courtesy of GENERAL MOTORS CORP.
  1. Disable the high voltage system. Refer to High Voltage Disabling .
  2. Remove the auxiliary bussed electrical center (BEC) cover (1).
    3. Fig 2: Locating Positive Battery Cable Components
    GM1968843Courtesy of GENERAL MOTORS CORP.
  3. Remove the positive battery cable nut (1) from the mega fuse stud.
  4. Remove the positive battery cable lead (5) from the mega fuse stud.
  5. Remove the engine shield. Refer to Engine Shield Replacement .
  6. Remove the positive battery cable clips (2, 3, and 4) from the frame crossmember.
  7. Lower the vehicle enough to remove the right wheelhouse panel. Refer to Wheelhouse Panel Replacement - Right Side (HP2) .
    8. Fig 3: View Of Positive Battery Cable Clips & Electrical Connectors
    GM1968844Courtesy of GENERAL MOTORS CORP.
  8. Working through the wheel opening, remove the positive battery cable clip (2) from the brake pipe.
  9. Working through the wheel opening, remove the positive battery cable clip (3) from the air cleaner adapter bracket
  10. Lower the vehicle.
  11. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  12. Remove the positive battery cable clip (4) from the air cleaner support bracket.
  13. Remove the positive battery cable clip (5) from the fender inner panel.
  14. Disconnect the positive battery cable electrical connector (1) from the drive motor generator control module.
    15. Fig 4: View Of Positive Battery Cable
    GM1968845Courtesy of GENERAL MOTORS CORP.
  15. Remove the positive battery cable (1) from the vehicle.
RENDER: 1.0x

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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.