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 number(s) below refer to the step number(s) on the diagnostic table.

2) The window lockout switch is found on vehicles equipped with 4 power windows. This switch completes or interrupts the ground circuit to all the passengers power window switches. Therefore it is imperative that the switch be placed in the OFF position before continuing with the diagnostic table.
9) The master switch has one common ground circuit for the left front power window and the passenger door power window switches. If the left front window operates, it can be presumed that the master switch ground circuit is good.

Fig 1: Power Window Inoperative - Passenger Door (Steps 1-11)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Power Window Inoperative - Passenger Door (Steps 12-22)

Courtesy of GENERAL MOTORS CORP.

Fig 3: Power Window Inoperative - Passenger Door (Steps 23-26)

Courtesy of GENERAL MOTORS CORP.