No power windows working all fuses are ok. What is the next troubleshooting step.

[slotahoe]

1. Power windows will not work from any switch. no clicking, no noise, no sound...just wont work.
2. Rear passenger window switch is not connected or installed.
3. Other than driver's switch other window switches light up when lights are on.
4. Power mirrors are also not working.
5. All power door locks are working.

When testing the window switch connector, what pins should there be power when in the ignition is on?

Could this be that the BCM needs to be reprogrammed?

Thanks In Advance for any help..

 

[rockenthebowtie]

What year.. sub.. tahoe... ???

 

[slotahoe]

None of the power windows are working

2001 Chevrolet Tahoe. 5.3. 2WD.

 

[rockenthebowtie]

Does your radio work ok ? If not check the 50amp RAP fuse underhood fuse block.. if thats ok check Ignition B 50amp fuse underhood fuse block.. if thats ok check RAP #1 relay thats located inthe junction block down to the left of the brake pedal youll need to remove the black cover to access it what you can do is swap it out with one from underhood fuse block that look the same just to test it if that doesn't work check for power at the 25amp circuit breaker there in the junction block it will be a metal housing looking fuse.. remove the 25 amp cb and use a test light to see if you have power at one of the terminals on the junction block with ignition on... try that and let me knowwhat your findings are

 

[slotahoe]

1. power on the right size of the fuse.
2. unplugged driver side window switch
3. power on the top right most pin
4. able to get the passenger front window to go up and down by using the test light on two pins next to each other (1 is wide and 1 is narrow)

5. At this point is it safe to conclude it is the switch? If so, why will none of the other switches work?
6. is there anyway to jumper the wiring harness to test all of the windows?
http://www.tahoeyukonforum.com/forum/images/smilies/hmmm2.gif
Thanks in advance again

 

[Rivieraracing]

You would be suprised how many circuits are affected when the drivers switch goes bad or is disconnected! Try to find someone local to you with a yukon/tahoe and see if you can borrow their drivers door switch to see if it works in your rig!

 

[scrtcell]

Make sure none of the wires passing through the door boot are broken...