Question about 1994 Chevrolet K1500
My brake warning light will come on once I reach 30mph and will stay on until I turn the truck off. When I restart the truck the light will stay out until I reach 30mph again. Fluid, pads, shoes are good. Could this be a speed sensor issue? How do I pull codes for the brake system if it's even possible on this model?
SOURCE: BRAKE WARNING LIGHT
Its not an electrical problem . . .. . When you change brakes you have to change the brake sensor as well. . . . . It just looks like a piece of wire with a sensor that clips onto the pad . . . . .Normally it is the outerpad. . . I cant tell you on witch sides its on cause it may differ from model to model.
Its not going to be a hazardous to the car the brake light will just keep burning.
If you replace the sensor and t he light does not stop burning it may be that your front brakes are also worn but remember just as at the back there is a sensor at the front.
Posted on Jun 26, 2008
Only two things should normally activate the light:
Parking Brake engaged switch.
Low Fluid level in master cylinder.
I don't think you did any work to the Parking brake, but you should check it to be sure.
I believe that you would have double checked the fluid level, but please check it again.
Other things that could activate the light would be a worn or leaking master cylinder; improper brake fluid type; a damaged brake booster diphragm .
I have attached a link with excellent info on how a brake system works here.
Also, does the light always stay on, or only when you apply the brakes?
Posted on Jun 25, 2008
Sounds like the sound when you leave the handbrake on. The same light as the low brake oil level will come on with the handbrake. And the warning sound coming from the cluster will come on if you leave the handbrake on and start driving to warn you that you left it on. Guessing your handbrake is not on and that your brake level sensor on the master cylinder is good (on the cap) check your handbrake switch and the wires there. You can unplug it and try it like that or you might have to bypass the 2 wires in the connector together. I can't remeber if with the handbrake on if it closes the circuit or the opposite. Once you have the connector in your hand you can unplug it with the car running and see if the light goes off. If not you can jump the 2 wires and see then. Or just check the switch isn't staying stuck. You'll see more once the handrake console is off. Just look around the mechanism of the handbrake and you'll find the switch.
Posted on Nov 20, 2008
That symbol is the low tire pressure light. You have a tire that is right at the minimum threshold. The light goes off as the tire temperature rises, and, as the temp rises, the internal air pressure also rises slightly. Just check the tires with a good pressure gauge, inflate them to the specs printed on the tag inside your driver's side door, and you will be just fine.
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Posted on Feb 20, 2009
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