02 impala abs, traction control not working

[wld50]

I have owned a 02 impala for 6 mths, we just got our first snow thought id try out the traction control and anti-lock brakes, neither worked. I've got no abs lights or tc lights on or messages. cant seem to find the fuse or relay for either. would appreciate any help, thanks

[Tech II]

OK, when you just turn the key to "on", not starting the car, do the ABS, CHECK ENGINE/SERVICE ENGINE and TRAC lights come on as a bulb check?

When you start the car, are these lights out?

To test the ABS, find a safe place where you can bring the car to a stop where only the passenger side is on snow and the driver's side is on bare pavement....hit the brakes good.....you don't feel a pulsation in the brake pedal or hear the clicking of the solenoids?

As for traction control, different systems use different methods to control slippage.....in some systems, the ABS will be used to control a slipping wheel, and you will hear the ABS activate.....other systems don't use the ABS to control slippage.....they may shift the vehicle into second gear to reduce torque or they may retard timing or they may kill injectors.......your owner's manual should explain how this is accomplished and what you should hear/feel when the traction system is activated....

Last thing to do is scan the vehicle for codes...

[wld50]

the abs and tc lights do not come on when i turn the ignition to on, only the brake and check engine ligts come on.when i start the car they are out. i only have a obdII scanner, i dont think that it will read codes for abs or traction control. i tried checking the brakes pass side on snow dr side on dry, they just locked up, no pulsating or clicking.

[gmtech1]

Are you sure the car is equipped with ABS?

[Tech II]

As Gmtech1 has asked, maybe the car has neither of these options, since the lights do not light up for a bulb check....

[wld50]

it does have abs and tc, when i was checking i noticed that the electrical plug to the abs pump was undone, i pluged back in still nothing. does anyone know if the abs and tc use the same fuse?

[gmtech1]

Yes, they use the same fuse, may be more that one. Check all fuses (under hood and dash). Even if the fuses are no good, there should still be indicators on the dash lit up. Some one may have disconnected the ABS to try and turn off the light, then pulled the bulbs out of the dash when that didn't work.

[Tech II]

There have to be codes set, if this was done, as GMtech1 said....