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alti117 · 10-01-2007, 03:04 PM

hey guys iv just bought an 03 gls a few weeks agao and i noticed that the rear defrost doesnt turn on, the main fuse in the engine compartment is fine i checked the voltage on both sides of it. there is no voltage at the rear window however. the light on the toggle switch turns on and off but im not sure which wires go to the switch because they all come in on 1 harness. i know that gm has a problem with the fan speed switch but i havnt seen anything on the defroster. any info on which wires it might be or any other places i can check for voltage would be greatly appreciated.

10-01-2007, 03:04 PM	#1
alti117 GX Member Join Date: Sep 2007 Location: canada Posts: 13	rear defroster hey guys iv just bought an 03 gls a few weeks agao and i noticed that the rear defrost doesnt turn on, the main fuse in the engine compartment is fine i checked the voltage on both sides of it. there is no voltage at the rear window however. the light on the toggle switch turns on and off but im not sure which wires go to the switch because they all come in on 1 harness. i know that gm has a problem with the fan speed switch but i havnt seen anything on the defroster. any info on which wires it might be or any other places i can check for voltage would be greatly appreciated.