Question about 2002 GMC Sierra

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Back up lights not working

I have checked the fuses and the bulbs are all fine - but no back up lights - I have a repair manual and it say that there is a switch on my automatic transmission to replace. I went to the parts store and they said it is only available for the manual transmission---any suggestions-----

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Hi,
The Reverse lights work on a plunger mechanism, mounted at the reverse gear position of the stick-shift. sometimes actually within the gear-box ( transmission itself )
I,d remove the bulb(s) and ensure the earth connections are good. clean and tight.
You could also try testing to see if you have 12 volts, running through the circuit, with a multi-meter or tester. i,d suggest purchasing a vehicle manual. invaluable tool for any vehicle.

regards mike.

Posted on Sep 16, 2008

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