95 buick century headlights/dashlights dead.
#1
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Headlights and dashlights died, replaced dimmer switch and headlight switch, they will function from time to time but not reliability enough for nighttime driving.
Searching mentions a headlight relay and a circuit breaker but ive not yet been able to find a location for either one, anybody have a clue where to look?
Searching mentions a headlight relay and a circuit breaker but ive not yet been able to find a location for either one, anybody have a clue where to look?
#2
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You have DRL? The module may be going bad. I have the factory info for it.
#4
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Here'* the diagram.
![](https://cimg3.ibsrv.net/gimg/www.gmforum.com-vbulletin/2000x1471/dsc_0005_de575aac326e1107ee49abeed8ea2b0a07fc0b22.jpg)
#6
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Clean all the grounds at the block, firewall, etc
#7
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Heres what i have:
Headlight switch labeled A though F connector side
A. Brown wire feeds to Dimmer switch
B. Empty
C. red wire +12v feed
D. Yellow wire ???
E. Orange wire ???
F. Empty
Headlight switch off position:
Continuity between B to C all others no connections
Headlight switch park position:
Continuity between A to E, B to C
Headlight switch park and light position
Continuity between A to E, B to C, B to D, C to D
Dimmer switch labeled A through D connector side
A. lt green blk stripe high beam/high beam indicator
B. Black ground
C. Tan low beam
D. Brown from headlight switch
Dimmer switch off position: no Continuity
Dimmer switch max position: A to D
Dimmer switch full on position: A to D, B to C.
incan set my multimeter to 20v DC and go from headlight switch C 12v to the body and get 12.83vdc
I can go from dimmer switch B ground to the body and have continuity
I can go from headlight switch C 12v to Dimmer switch B ground in 20v DC mode and get 12.83vdc
The second in turn on the headlight switch i lose that 12.83v
Headlight switch labeled A though F connector side
A. Brown wire feeds to Dimmer switch
B. Empty
C. red wire +12v feed
D. Yellow wire ???
E. Orange wire ???
F. Empty
Headlight switch off position:
Continuity between B to C all others no connections
Headlight switch park position:
Continuity between A to E, B to C
Headlight switch park and light position
Continuity between A to E, B to C, B to D, C to D
Dimmer switch labeled A through D connector side
A. lt green blk stripe high beam/high beam indicator
B. Black ground
C. Tan low beam
D. Brown from headlight switch
Dimmer switch off position: no Continuity
Dimmer switch max position: A to D
Dimmer switch full on position: A to D, B to C.
incan set my multimeter to 20v DC and go from headlight switch C 12v to the body and get 12.83vdc
I can go from dimmer switch B ground to the body and have continuity
I can go from headlight switch C 12v to Dimmer switch B ground in 20v DC mode and get 12.83vdc
The second in turn on the headlight switch i lose that 12.83v
![](https://cimg8.ibsrv.net/gimg/www.gmforum.com-vbulletin/2000x1504/20210625_082554_64e46e893f152766f82ee9102875eee0b283cedf.jpg)
![](https://cimg1.ibsrv.net/gimg/www.gmforum.com-vbulletin/2000x1504/20210625_090350_66fcb7624a2f554856a9b641d38b741dd54d64e1.jpg)
#10
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This should have what you need.
![](https://cimg8.ibsrv.net/gimg/www.gmforum.com-vbulletin/1640x2000/dsc_0006_6be32cfdffb73cd6d874cf6d181f236efbdbe9cd.jpg)