Test Description

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. 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 Diagnosis (Steps 1-4)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Low Traction Indicator Inoperative Diagnosis (Steps 5-11)

Courtesy of GENERAL MOTORS CORP.