instrument light fuse keeps blowing

Status
Not open for further replies.

awdblazer

Master Mechanic
Dec 12, 2013
314
81
28
so i have a short somewhere on my instrument light circuit
does anyone have any diagrams of this circuit?
it only blows when you turn up the dash lights, when the headlights are on
thanks
 

pontiacgp

blank
Mar 31, 2006
29,270
20,391
113
Kitchener, Ontario
sounds like it could be your light switch that is the problem...

InstrumentPanelLighting.jpg
 

awdblazer

Master Mechanic
Dec 12, 2013
314
81
28
it seems like it is the dimmer switch
when I have the headlights on and the dimmer off the fuse doesn't blow
when I turn the dimmer up (on) it blows the fuse
is this a common problem?
 

pontiacgp

blank
Mar 31, 2006
29,270
20,391
113
Kitchener, Ontario
If I read your first post correctly the fuse does not blow if you have the headlights off. To me that means that circuit is ok and there is an issue with your headlight switch
 

awdblazer

Master Mechanic
Dec 12, 2013
314
81
28
with the headlights off and the dimmer to off it doesn't blow the fuse
it will blow the fuse as soon as I turn the dimmer switch
 

pontiacgp

blank
Mar 31, 2006
29,270
20,391
113
Kitchener, Ontario
then I misunderstood you....I guess you'll have to trace the wires. Have you done any work on the interior like replace the radio or the cigarette lighter?
 

awdblazer

Master Mechanic
Dec 12, 2013
314
81
28
I took the gauge cluster out before and fixed my speedo and tach but that is removed when it blows
I did take the stereo out to see what connectors are on it
maybe its in there?
 

pontiacgp

blank
Mar 31, 2006
29,270
20,391
113
Kitchener, Ontario
the orange wire is the illumination on the radio and the grey wire is the wire for the lights in the car.
 
Status
Not open for further replies.

GBodyForum is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of Amazon.com, Inc. or its affiliates.

Please support GBodyForum Sponsors

Classic Truck Consoles Dixie Restoration Depot UMI Performance

Contact [email protected] for info on becoming a sponsor