Trouble with the courtesy light fuse
#1
Trouble with the courtesy light fuse
My brother has an 87 Buick regal with an olds 307 and none of the courtesy lights come on.
The fuse is blown obviously so I replaced it. And I noticed that as soon as I replaced it, the engine compartment light blew then shortly after came the fuse. This light is part of the circuit.
I have an inkling that this is my problem, if I remember when I took my physics class we learned about circuits and I remember learning that if say a light bulb were to short out then the circuit it incomplete.
Do you guys think that the problem is just the bulb, or is it something deeper. I haven't checked the circuit with my multimeter yet, and I plan to do it soon.
The fuse is blown obviously so I replaced it. And I noticed that as soon as I replaced it, the engine compartment light blew then shortly after came the fuse. This light is part of the circuit.
I have an inkling that this is my problem, if I remember when I took my physics class we learned about circuits and I remember learning that if say a light bulb were to short out then the circuit it incomplete.
Do you guys think that the problem is just the bulb, or is it something deeper. I haven't checked the circuit with my multimeter yet, and I plan to do it soon.
#2
A light bulb is a controlled short. If you are replacing the fuse with the proper amp rating and it blows, what you probably have is a short in the positive wire some where in the circuit causing the fuse to blow.
#3
#7
Oh Okay that makes sense, that isolates the problem to the courtesy section of the light switch and onwards since the headlights, parking lights, tail lights are functioning properly. I should look at the junction block and check for continuity.
Last edited by 77ricbaez; March 9th, 2017 at 08:39 AM.
#8
If you are blowing a 20A fuse, you have a short somewhere in the orange wires to the cig lighter, clock, courtesy lights, engine comp. light, or glove box light. Since the engine comp light lights and goes out with the fuse blowing, I would say your problem is not there. If the courtesy lights briefly light also until the fuse blows, I might rule them out also. Chances are the short is in the cig lighter, remove the heavy wire at the back of the socket (it should just pull off) and replace the fuse, if it blows the issue is somewhere else.
#9
Yeah that's what I was thinking, I read that the g bodies have weird wiring and that the cig lighter is a culprit. I noticed that this one is a new one when I took the center console apart. It wasn't the original part which gives me the suspicion that the previous owners had this problem. I might just end up removing it and taping off the connection with electrical tape. My brother's not a smoker.
Thread
Thread Starter
Forum
Replies
Last Post
Oldscutty72
Electrical
7
December 28th, 2015 01:56 PM
NINETY_EIGHT_REGENCY
Electrical
23
May 18th, 2014 07:12 PM