Canadian Hummer Club Forums

Hi everyone!



Iam having issues on my rear brake lights and signal lights, its not working. the front signal lights are working fine. I already checked the bulbs and they are not busted, Wirings looks fine too. Any suggestions/advice? Thanks.

Have you checked to see if the lights are getting power? not sure how easy it is to unplug the brake light but when the lights should be on check to see if you are getting voltage. If you are getting voltage then you have a bad ground. If you don't have voltage then you will need to track down where the connection is broken. For me on My H1 it has always been a case of a bad ground somewhere that has caused me to loose my lights.

The other guys might know of some go to spots on the H3 if it's a common problem.

Iam not sure if there is power on the lines, most likely it has voltage because the front signal lights are working fine. Anyway, I'll check on that.. Thanks for your input.

i would pull the rear lights off and take a 12v test light and see if your getting power back there. when you have a light out with the lights on you should have one wire with power as a running light. one will be ground and the other should have power when the brake peddle is applied..

There seems to be power on the light bulbs as i tested it. A friend of a friend told me that the trouble is most likely on the BCM or body control module. Anyone who knows where i can get these BCM and have any idea how much it cost? Thanks.