Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Aids
Intermittent problem may be caused by poor connection, rubbed-through wire insulation or broken wire inside the insulation. Enhanced Diagnostic feature of Tech 1 can be used to check frequency of problem. If ABS warning light only comes on during moist conditions, thoroughly check wheel speed sensor circuits for signs of water intrusion.
If DTC is not current, clear DTCs. Spray suspect area with 5 percent salt water solution. Test drive vehicle over various road surfaces above 15 MPH for at least 30 seconds. If DTC returns, replace suspect harness.
Any circuit suspected of causing intermittent problem should be thoroughly checked for backed-out terminals, improper mating, broken connector locks, damaged terminals or poor terminal-to-wiring connections.
When replacing wheel speed sensor, inspect sensor terminals and harness connector. If corrosion or water intrusion exists, replace wheel speed sensor jumper harness. When replacing wheel speed sensor jumper harness, inspect harness terminals and sensor connector. If corrosion or water intrusion exists, replace wheel speed sensor.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.