Stupid Traction Control/ABS/Active Handling lights 😡
Thread Starter
Racer
Joined: Jun 2016
Posts: 280
Likes: 216
From: Massachusetts
Stupid Traction Control/ABS/Active Handling lights 😡
What a pain. Lights used to come on once in a great while. Now they come on almost every time. As far as I can tell each system is still working properly. In the process of running down all the codes and trying to rule out the most common causes. So pissed!! 😡😡
Burning Brakes
Joined: Sep 2013
Posts: 751
Likes: 583
2020 C5 of the Year Winner- Unmodified
Obviously it could be an issue with the EBCM that seems somewhat common on C5s.....but.... I had those messages and it was suggested on here to "exercise" the ABS.... so I did by running about 60 and slamming on the brakes but not to a complete stop several times. I cleared the messages before the braking exercise. I haven't had the messages since. I try to do that ever so often. It's a free thing to try.
Last edited by flyingmfrc; Jul 27, 2019 at 10:26 PM.
Thread Starter
Racer
Joined: Jun 2016
Posts: 280
Likes: 216
From: Massachusetts
Obviously it could be an issue with the EBCM that seems somewhat common on C5s.....but.... I had those messages and it was suggested on here to "exercise" the ABS.... so I did by running about 60 and slamming on the brakes but not to a complete stop several times. I cleared the messages before the braking exercise. I haven't had the messages since. I try to do that ever so often. It's a free thing to try.
Safety Car
Joined: Apr 2007
Posts: 3,640
Likes: 83
From: . New York
Battery voltage can effect the process of all the systems checking in when you start the car. Its simple and probably not your problem but ensuring that the battery is good can rule out some of these error codes. Wouldnt effect the systems...... just if they are active ( in other words you would get the lights that would stay on after some start ups and be off after others).
Thread Starter
Racer
Joined: Jun 2016
Posts: 280
Likes: 216
From: Massachusetts
Cleared a few codes this morning. Just went for a ride, the only one that came back was 28-TCS C1243 H.
From what I've researched it's the ABS "pump motor stalled". Got responses to use a tester to put power to the green wire to make the pump motor run.
Trying to figure out how to do that with the ABS module in the car. Have only seen a youtube video of this being done on a bench with the module out of
the car.
2000 Convertible, 6 speed, LS-1
From what I've researched it's the ABS "pump motor stalled". Got responses to use a tester to put power to the green wire to make the pump motor run.
Trying to figure out how to do that with the ABS module in the car. Have only seen a youtube video of this being done on a bench with the module out of
the car.
2000 Convertible, 6 speed, LS-1
Last edited by DC 155; Jul 28, 2019 at 09:25 PM.
Melting Slicks
Joined: Mar 2018
Posts: 2,502
Likes: 187
From: California
When the last time you cleaned the throttle body or maf. My threw a traction control light once and when into low power mode found out there was a vararam Air velocity stack setting off a sensor same thing with a maf too had some dirt somehow got sucked up and it was messing with the maf signal.
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Heel & Toe
Joined: May 2019
Posts: 15
Likes: 2
From: Pennsylvania
Try looking at the wires that run through the accordion plastic piece when you open up the driver side door. (in my case driver side) This happen to me and just by chance I kind of grab that area with my hand and squeezed the wires and then turn-off and back on again and it stopped then couple days later started again. I grabbed area again and did same thing everything was back to normal. I decided to taped the cords up neatly when it happened again a day later. I have not had an issue in 5 years.
Instructor
Joined: Jul 2018
Posts: 222
Likes: 73
From: Kansas
I traced an issue back to the ABS connection on the backside of the hub. The ABS wiring harness had come loose, allowing the connection to bounce. Peeling back the rubber boot on the backside of the hub, I could see the wires had actually broke their connection. A re-soldered the connection, mounted the harness, and the code cleared. Might be worth a check. Good luck!
Racer
Joined: Mar 2013
Posts: 477
Likes: 48
Just my .02. My lights were doing the same thing-starting to come on more often. Had the EBCM repaired etc. but they only quit after I replaced the starter switch. The brass contacts in the switch get burned to the point that the systems do not receive the correct voltage necessary to operate properly thus the codes are set. It has been two years and I haven't had one code since replacing it. There are quite a few posts showing the issues with this problem.
Safety Car
Joined: May 2006
Posts: 3,732
Likes: 710
From: Shelton, Connecticut
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
My neighbor with an 05 coupe just went to the local dealer with this problem last week.
Dealer mechanic unplugged and then re-plugged the big connector under the passenger side floor board.
Cured his problem so far.
Apparently, the connector under the floor board gets fatigued and re seating it cures a lot of problems.
Also, they did check a lot of the grounds in/on the chassis. The contacts can corrode.
Good Luck.
Dealer mechanic unplugged and then re-plugged the big connector under the passenger side floor board.
Cured his problem so far.
Apparently, the connector under the floor board gets fatigued and re seating it cures a lot of problems.
Also, they did check a lot of the grounds in/on the chassis. The contacts can corrode.
Good Luck.
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