Anti-lock brake system light traction control light, and service engine soon light are on

1999 CADILLAC DEVILLE
101,456 MILES • 2WD • AUTOMATIC
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Sometimes when I drive my car it pulls hard left significantly but sometimes it doesn't. the service engine light soon just recently came on but the traction control and the ABS light has been on since I purchased a car from another owner 2 months ago.
Feb 8, 2020 at 1:38 PM
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TOUGHDIVER
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Hello,

It could be the brakes are not releasing sometimes and a faulty wheel speed sensor causing the ABS light. A faulty wheel speed sensor will disable traction control and turn the traction control lamp on. Check the diagnostic service codes for the ABS for what wheel speed sensor or sensors is faulty. Check the brake pads and calipers for sticking or rusted brake pads. The brake pads and rotors may need replaced with a complete brake fluid flush. I'm attaching repair guides below for you to reference . Let us know if this information is helpful or if you need more info.

https://www.2carpros.com/articles/abs-wheel-speed-sensor-test

https://www.2carpros.com/articles/car-pulls-right-or-left-when-driving-or-braking

https://www.2carpros.com/articles/how-to-bleed-or-flush-a-car-brake-system

https://www.2carpros.com/articles/brake-caliper-replacement

Thank you
Joe T.
Feb 8, 2020 at 6:26 PM