Marker lights, tail lights and dash lights do not work
I have a 1995 GMC K1500 pickup that the marker lights, tail lights and dash lights do not work. I've checked fuses, tried a new headlight switch and checked the plug under the power booster for corrosion all to no avail.
Re: Marker lights, tail lights and dash lights do not...
I had a similar nagging problem once, though I do not recall the dashlights being involved. For me, the lines from the brakes went up the steering column to the turn signal. I pulled the wheel and inspected all the connections, and just like that everything worked again. I believe I could have tugged on the wiring harness without pulling hte wheel and obtained the same results.
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and double posted anon sameday
backup one and read.
learn that fuse that look bad are bad
fuses the look good can be bad, called hair line cracks poor humans can not see
so we test them and never guess
tail fuse above left knee is in fact blown.
if not the switch is bad.
head lights are not part of this circuit at all, cept plastic knob.
If you confirm the side marker lights,tail lights,fog lights and/or dash illumination are inop,and fuse number 39 is open,the wire harness is chafed/damaged at either the left or right front side marker lights....Removed both front side marker light and repair the harness wil fix your problem.....Let me know if you find any damaged wire harness
The only thing that both the brake lights and tail lights use is a ground connection. Keep in mind the warning light on the dash may be for any exterior lamp. You may need to check the sockets and grounds on all four corners of the car.
I would start by checking all the fuses, then check the headlight switch,test it for power as you did the tail light, then check the wiring coming out of the cab down the frame to the rear of bed check for a short but if all fuses are good then will not be a short, may be a bad switch and the most important is the bulbs, make sure they are good.
Left of the steering wheel & under the dash is the fuse panel for this. No.9 is for the tail lights, but also for many other lights such as licence lamp/parking lamp/side marker/tail gate/etc...
There is also an under the hood fuse/relay panel, but it does not have the tail light fuse in it.
Took it to the shop. The side marker lights were missing on my son's car. The wiring loops from the side marker lights to the tail lights. As the wires were touching in the front, they shorted out the tail lights. Capped the wires, problem solved!
PS: ordered side marker lights, too.