I have Brake and ABS lights on all the time when I start the truck. They both come on and stay on even if the truck is in park.

I have checked the ABS fuses and I have replaced the vehicle speed sensor in the rear end.

Im not sure what else it could be.

I had code p0500 before I replaced the speed sensor (in the rear) but now its not showing up. The BRAKE and ABS lights are still on.

 

Hey just keying in here, I just lost the front wheel bearing and that turned the ABS and brake like on check the front bearings.

 

Mine went on when the caliper was pushed out too far, the pad was shot and cutting into the rotor, but i couldnt hear it. I would do an inspection of the wearing parts.

 

there also is a sensor on each wheel . if they get dirty they also will throw a code. i get them all the time when off roading.. i just hit the everything with a pressure washer when im done and they seem to go away!

 

this might be a dumb question but do you take the wheels off when you pressure wash them?

 

where is the sensors located on the wheels?

 

And last but not least check all fuses. On my 97 4x4 after doing all you did found that there was a second fuse in the circuit tht was blown, replaced it and all ws well, cause was a short in my trailer wiring that kept blowing the fuse.

 

All good advice if you have 4 wheel ABS. The next thing to replace is the stoplight switch. They run about $13.00 at Auto Zone.

 

Is your speedo working properly? Could be the sensor on top of the rear diff going bad.

 

you have now set a "hard code" on the truck it will stay on...first try and d/c the batteries for 30 min and reconnect...otherwise u need to have it cleared by the dealer...or in the older trucks the code gets cleared after 60 start cycles

 

Ill try resetting the batterys today. My speedo does work. And I have checked the fuse next to the drivers side door.

 

I couldnt find the ABS sensor. Does anyone have a picture of what it looks like? or a pic of where its located?

My truck is a 2wd and I have drum brakes in the rear (disk up front)

 

i disconnected the battery yesterday for 5 hours (had some stuff to do).
i went back out there and connected it and it came on immediately

anyone know where the abs sensors are on the wheels?

what would cause it to come on immediately like that before the wheels even started to turn?

 

i just lost my front wheel bearing and my abs and brake light came on, did u check the play in wheels, as soon as those 2 lights came on my truck started shaking really bad. took the wheel off along with the caliper, caliper mounting bracket and rotor and i had grease dripping out the bearing.

 

An '01 with rear drums???