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Headlight/dimmer switch no power on 1991 Pontiac Firebird Rate Topic: -----

#1 User is offline   chronos51 

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Posted 24 August 2010 - 05:46 PM

I had this problem once before and I managed to temp fix it. My headlight switch is not getting power. I ran a direct wire from the Bat to the positive wire on the switch and it works with out any problems. My question is:


on a 91 firebird 3.1

Is their an in line fuse or relay that may be causing me not to have power with out the added direct wire i put in. I have replaced the dimmer unit, "guide" box that controls the headlights. I have replace 2 inline fuses in the engine bay but can not locate anymore.

Relays, I replace 2 near the heater fan and the one that controls the fuel relay. I have not replace the AC relay or the other one next to it. these replacements have been within the last 4 months

Im wanting to fix this and get rid of the temp wire I installed. I have looked at several wiring diagrams and can not locate any reason as to why Im not getting power.

Any thoughts?
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#2 User is offline   1993TransAm 

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Posted 26 August 2010 - 08:47 AM

Can you post the wiring diagrams you have? I don't have anything on a '91.
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#3 User is offline   chronos51 

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Posted 26 August 2010 - 03:17 PM

View Post1993TransAm, on 26 August 2010 - 08:47 AM, said:

Can you post the wiring diagrams you have? I don't have anything on a '91.



wiring diagrams come out of a chiltons book. I need to scan it in the computer first. let me see if my scanner is working.
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#4 User is offline   Firebird_thunder86 

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Posted 19 August 2011 - 12:41 AM

Havee you replaced the dimmer switch module?
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#5 User is offline   Jaysz28 

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Posted 19 August 2011 - 01:24 PM

are you sure that a wire isn't hanging off of the starter?

Thats where the switch gets its power from.... and you should also check the fuseable links while you are at it. One might have burned up


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