2007 Hummer H3 AutomaticFACTORY OEM SERVICE PROCEDURE

Scan Tool Output Controls

WARNING: This page is about a different car, the 2005 GMC Canyon and 2005 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
Scan Tool Output Controls

Scan Tool Output Control Additional Menu Selection(s) Description
Power Down Now - This output control commands all of the class 2 modules to go to the OFF power mode.
Retained Accessory Power Miscellaneous Test Commands the RAP relay ON or OFF.
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.