ABS light on/off

[Venom351R]

I posted this over at SVT but they dont respond to crap over there.


When ever I start the car up for the first 10-20 mins the ABS light is on. Often times when I turn on the rear defrost or headlights or something to do with electrical the ABS light goes off, then if I shut it off IE..rear defrost...the ABS light comes back on. Suggestions?

 

[BlownFiveLiter]

Sounds odd. Rear defrost or headlights put a substantial draw on the electrical system, so maybe your ABS is receiving too much voltage? What's the voltage at the battery KOER with no accessories turned on? I'm wondering if you don't have a bad voltage regulator?

 

[Venom351R]

Sounds odd. Rear defrost or headlights put a substantial draw on the electrical system, so maybe your ABS is receiving too much voltage? What's the voltage at the battery KOER with no accessories turned on? I'm wondering if you don't have a bad voltage regulator?

What other symptoms would that cause?

 

[BlownFiveLiter]

Hmm... if it's allowing too much voltage, I'm not sure you'd have any symptoms. Maybe burning out bulbs frequently? That might not even be the issue though, just something that popped into my head, since it goes away with a high draw on the electrical system, or after 10-20 or so minutes, after the regulator would get saturated with engine heat and possibly become more resistant (since heat = more resistance).

 

[Danman765432]

just a question...does it turn on when it is cold out and when it is warm or the car is warmed up it is not on?