Question about 1998 GMC Jimmy
I have A 1998 GMC Sierra pick-up. 2wd, 305 V-8, AT
The back lights stay on all the time now, I had to disconnect the battery to shut them off. How do I know which lights (brake or tail)are on? Can you test the switch? what do I look for?
First, check the brake light switch, and if the high level light is on, the brake light switch is the likely problem. Even if it isn't, the bulbs could be burnt out. Anyway, disconnect the wire harness from the brake light switch on the brake pedal. If the lights go out, replace the switch. To test the light switch, disconnect the wire harness from that (with the switch in the "off" position). Again, if the lights go out, this is the problem. More likely, it is the brake one. This happened on my Dodge twice.
Posted on Dec 26, 2008
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Posted on Jan 02, 2017
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