Trouble Shooting

2004 Oldsmobile Bravada AWDSECTION Trouble Shooting
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

If Fast Learn will not run and the above-stated conditions have been met, ensure the following:

  • Transmission fluid temperature at 40-100°C.
  • Closed throttle and engine at warm-idle RPM.
  • No active DTCs.
  • All speed sensors are connected and functioning properly.
  • NSBU switch properly adjusted and functioning.
  • Main pressure within specification.
  • TCC slip speed less than 100 RPM at idle in park/neutral.

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.