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.
Code A024 - Right Rear Wheel Speed Is Zero: Notes
Wheel sensors produce AC voltage signal as magnetic teeth pass coil. The AC voltage created enables EBCM to determine wheel RPM. EBCM compares individual wheel speed data to detect wheel lock-up.
This test isolates circuit faults causing EBCM to calculate wheel speed to be zero. Code A024 detects open or short to ground and short to voltage. Code is set if EBCM detects 0-MPH speed at right rear wheel, while speeds at remaining wheels are greater than 5 MPH and operating correctly.
- This step determines if Code A035 is present.
- This step determines if fault is currently present.
- This step checks for apparent physical damage that may cause code to set.
- This step determines if sensor internal resistance is correct.
- This step determines if sensor is shorted to ground.
- This step determines if sensor circuit is shorted internally.
- This step checks for open in wheel speed signal low circuit.
- This step checks for open in wheel speed signal high circuit.
- This step ensures Code A024 is not caused by poor connections between EBCM and connector.
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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.