abs,brake and asr light on

[Ieatstangs]

they stay on while driving can anybody give me any advise as where to look to ....

the asr and the parking brake are functional but the lights will not turn off

its a 98z28 107k i just picked it up last month for 1700 runs good a few problems but the mods made it worth it

the guy i bought it from (who wont answer his phone) claims the rearend is not stock . it does have a lg motorsports rear end cover but im not sure if its stock or not
this morning none of them stayed on i was surprised but after about 10mins they came on and i lost power to my left headlights

any help is greatly appreciated thanks

[35th-ANV-SS]

I would start with checking the wheel speed sensors at each rear wheel...make sure the sensors are clean, plugged in, and the wiring is OK. If it is a 3 channel, the sensor is on the pumpkin.

You could also have a bad ECBM...most unlikely I would think.

Not sure how true this is, but I've also read that a bad 3rd brake light will cause this. Again, only read about this before and am not sure to its truth.

[Ieatstangs]

thanks i will check tommarrow i have 3.23s from the factory according to the vin so im not sure if thats 3 or 4 channel but ill look into it thanks again

I would start with checking the wheel speed sensors at each rear wheel...make sure the sensors are clean, plugged in, and the wiring is OK. If it is a 3 channel, the sensor is on the pumpkin.

You could also have a bad ECBM...most unlikely I would think.

Not sure how true this is, but I've also read that a bad 3rd brake light will cause this. Again, only read about this before and am not sure to its truth.

[35th-ANV-SS]

If you have wheel speed sensors mounted to the backing plates at each rear wheel, you have a 4 channel. If not, it's a 3 channel.

Also, since you bought the car used from someone, it might not necessarily have that gear in it, unless the previous owner told you that and he was sure.

An easy way to check is:

Jack the car up from the rear. Mark the drive shaft with a paint stick or other visible means. Rotate the wheel 1 full revolution and count the number of times the drive shaft turns. If the drive shaft turns 3-1/4 times, you have a 3.23 gear...if it turns 3-1/2 times you have a 3.42 gear, if it turns 4 times you have a 4.10 gear.

You get the idea

[bigrondownhiller]

If you have traction control you have a 4 channel unless the previous owner changed it out. Sometimes cleaning the speed sensors fixes it.

[Ieatstangs]

If you have wheel speed sensors mounted to the backing plates at each rear wheel, you have a 4 channel. If not, it's a 3 channel.

Also, since you bought the car used from someone, it might not necessarily have that gear in it, unless the previous owner told you that and he was sure.

An easy way to check is:

Jack the car up from the rear. Mark the drive shaft with a paint stick or other visible means. Rotate the wheel 1 full revolution and count the number of times the drive shaft turns. If the drive shaft turns 3-1/4 times, you have a 3.23 gear...if it turns 3-1/2 times you have a 3.42 gear, if it turns 4 times you have a 4.10 gear.

You get the idea

the weather finally cleared up im goin to go look at it now