Test Description

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

3. This step verifies the ignition 1 voltage circuit can supply adequate power to the traction control switch.
4. This step verifies the EBCM is applying ground to the low traction indicator.
5. The EBCM may be damaged if the traction control active signal circuit is shorted to voltage.

Fig 1: Low Traction Indicator Inoperative (Except Escalade) (1 Of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Low Traction Indicator Inoperative (Except Escalade) (2 Of 2)

Courtesy of GENERAL MOTORS CORP.