Hi 4 warning lights on,yellow abs..red brake..yellow traction control..yellow service engine ,,,,was told it was the abs mod,changed the 250 dollar part,not fixed?
Possibly a bad ignition switch.
SOURCE: Impala - trac off and ABS light along with service traction syst
THE PROBLEM IS WITH A HUB WHEEL SPEED SENSOR OR MORE LIKELY THE HARNESS LEADING TO THE HUB.
CHECK THE RESISTANCE AT THE HUB CONNECTION, IT SHOULD BE BETWEEN 900OHMS AND 1300OHMS. THEN SWITCH TO A-C VOLTAGE, IT SHOULD BE 100MV WHEN TURNING THE WHEEL BY HAND. IF BOTH CHECK OUT THE PROBLEM IS IN THE WIRING TO THE HUB.
THE RIGHT FRONT HUB USUALLY HAS A BEND, DOWNWARD THEN UPWARD NEAR THE CONNECTOR TO THE HUB. THAT IS WHERE THE PROBLEM USUALLY OCCURS.
NEW HARNESS WIRES CAN BE BOUGHT AT THE DEALER.
SOURCE: 2007 Chevrolet Uplander LT ABS and TC light on
We were having this problem...have your wheel bearing checked out. There was a sensor in the drivers side wheel bearing...once we replaced it (because it was going out) the ABS and Traction Control warning lights stopped coming on.
SOURCE: 2005 Impala abs & traction control problem
2005 Impala it turn off some times when I am coming to a complete stop or when I am slowing down but it starts right back up with no problem can you help me
SOURCE: my 2002 impala's service traction control light
Traction control only works when one wheel is spinning faster than the other it trys to even them out so it wont spin...sometimes if one of the wheels come off the ground in an uneven area or if you take a turn too fast and one wheel turns when the other one dont it is designed to operate.
I would remove all wheels and check the braking system...Is it 4 wheel disc or rear drum ?
If it has rear drums you could have a wheel cylinder leak that will sometimes lock the wheel because of fluid contamination....This would cause both lights to come on...If you find no problems
sometimes the abs sensor builds up fragments on the magnet and makes the light come on...
or if the abs sensor is not close enough to the exciter ring it will make the light come on because it will be out of adjustment.....all you do is press the sensor inward until it barely touches the ring and it will adjust itself....You can sometimes clean the magnet if it is contaminated and make the light go off ( only after you reach 6 to 15 mph. it will go off ).If it dont go off you have to buy a sensor.
Also make sure all tires have same amount and plenty of air to keep vehicle in balance/level.
SOURCE: The following lights keep coming
These are WARNING lights! They are trying to warn you that there is a malfunction in your brake and traction control systems. The most common problem would be that one of your wheel speed sensors are not working properly. The only way to find out for sure is to access the computer system data and find out why it has been turning the lights on. (There will be fault codes stored in memory)
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