2003 Hummer H2FACTORY OEM SERVICE PROCEDURE

ABS Component Views

Fig 1: Electronic Brake Control Module (EBCM) Component View
GM828180Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Chassis Harness
2 EBCM
Fig 2: Longitudinal Accelerometer Component View
GM819748Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Instrument Panel
2 Longitudinal Accelerometer
Fig 3: Traction Control Switch Component View
GM819761Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 I/P Compartment
2 Traction Control Switch
3 Tow/Haul Switch
4 Ride Height Switch
Fig 4: Wheel Speed Sensor (WSS) Component View - LF (RF Similar)
GM828164Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Chassis Harness
2 WSS Connector-LF
Fig 5: Wheel Speed Sensor (WSS) Component View - LR
GM865849Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 WSS-LR
2 Rear Axle Assembly
Factory Service Tools

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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.

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