QuestionHi Roland, don't know if you recall me or not but you helped me out a while with my cruice control and I thanks you for it.
I own a 1999 Concorde 3.2 ltr and for the last few weeks my ABS/Traction Control has been coming on. When the car first starts-up it clear itself, but after about 10 to 15 second of moving they come back on. I have read the codes and there are none. Is there a way to check if it's one of the wheel sensors or the controller I also not sure where the controller is.
Any help would be great.
Thanks Bill
AnswerHi Bill,
Did you read the codes with a plug-in reader, the same plug that is used to read engine/transmission/body codes? If not, then that would be the way to find out what is going on with the ABS. The Autozone parts store near you may have a reader that is capable of doing that, but verify it can access the ABS control unit.
The early test of the system, when driving off, of for the pump/motor function of the ABS and the signals from the wheel sensors. So presumably your issue is one or the other. You might want to check and clean the surface of each of the wheel sensors and tone wheels as dirt on those can cause a loss of signal.
The controller is located in the engine compartment and requires removing the speed control unit, moving the water bottle filler neck, de-mounting the trans controller, and the brake lines coming from the master brake cylinder to the control unit and from the control unit to the chassis brake lines, the 25 wire connector, the left inner fender splash shield (after removing front wheel/lifting the vehicle). It would be better to have the couple of pages that show/describe this for details that are necessary if you have to get into that task. Let me know and I can xerox and postal mail you those.
But start with sensor cleaning. Also verify that the spacing between the sensor and tone wheel is 0.17 to 1.80 mm on the front wheels, and 0.37 to 1.50 on the rear wheels.
Roland
Roland
