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Brake warning light on dash is dim

BK63

By BK63
in Gen III & Gen IV V8 Engines (LS-Based)

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BK63 Enthusiast

BK63

Posted
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OK I'm at a complete loss now. 92 K1500. I had a problem with the parking brake, dash warning light was flashing like there was a short. Fixed the cable and the light went out completely. Next day I have a very dim dash warning light. If I put the parking brake on it comes on bright. Take it off it goes very dim but not off compltetely. Don't know what else to do now. Any ideas are appreciated.

87crew4x4 Enthusiast

87crew4x4

Posted
Posted
OK I'm at a complete loss now.  92 K1500.  I had a problem with the parking brake, dash warning light was flashing like there was a short.  Fixed the cable and the light went out completely.  Next day I have a very dim dash warning light.  If I put the parking brake on it comes on bright.  Take it off it goes very dim but not off compltetely.  Don't know what else to do now.  Any ideas are appreciated.

 

 

 

 

 

You say "fixed the cable", you must mean PB cable? Sounds to me like you have a short in the switch.

BK63 Enthusiast

BK63

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Yes the parking brake cable was dangling underneath but I was able to salvage enough of the threaded cable and put the nut back on and adjust to where it works good now. The light went completely off and a day later it's back on. I can only see one wire on the parking brake switch. When I pull it off it makes no difference to the light but last week when i moved the pb pedal the light would go from on, to irratically blinking on and off when i pulled up on it. I would think if i unplug it the light would go out but no good there. The light goes from dim to bright when I apply the PB.

87crew4x4 Enthusiast

87crew4x4

Posted
Posted
Yes the parking brake cable was dangling underneath but I was able to salvage enough of the threaded cable and put the nut back on and adjust to where it works good now.  The light went completely off and a day later it's back on.  I can only see one wire on the parking brake switch.  When I pull it off it makes no difference to the light but last week when i moved the pb pedal the light would go from on, to irratically blinking on and off when i pulled up on it.  I would think if i unplug it the light would go out but no good there.  The light goes from dim to bright when I apply the PB.

 

 

 

The switch grounds to the body through its bracket, only needs the one wire for power. Sounds to me like the switch is bad. Get a new one, make sure the mount is secure and adjust the switch correctly. I can only see a Brake pedal switch in my head but I am sure the Park brake switch would be similar.

BK63 Enthusiast

BK63

Posted
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The thing is when I unplug the one wire the light is still dim. Before that when I pulled up on the loose parking brake pedal before i adjusted the cable, it would go from on to blinking irradically. When i unplugged the wire then it would still blink irradically. I would think unplugging the one wire would turn the light off?

BK63 Enthusiast

BK63

Posted
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I reseated the cables on the abs module after reading about it on another site today and the brake light is out, wooohooo :flag::D

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