ABS Wheel Speed Sensor Failure
A problem has been detected with one of the ABS wheel speed sensors.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The ABS (Anti-lock Braking System) uses wheel speed sensors to monitor the speed of each wheel to prevent locking during braking. If a sensor fails, the system can't correctly gauge whether a wheel is skidding, which may lead to less effective braking under hard stops.
What the computer is actually seeing
The ABS control module expects a signal from the wheel speed sensor between 0.5 to 3.5 volts when the wheel is rotating. If it doesn’t receive this expected signal, it logs the C1507 code.
What a healthy reading looks like
Wheel speed sensors typically output a frequency in Hertz that correlates with the wheel speed; expected output for a functioning sensor is between 5-50 Hz when the vehicle is moving.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Inspect the wiring and connectors at the wheel speed sensor for damage or corrosion. Decision point: if damaged, repair or replace as needed.
- 2Check the wheel speed sensor itself for dirt or physical damage. Decision point: if dirty, clean it; if damaged, replace it.
- 3Use a multimeter to check the voltage output of the wheel speed sensor while the wheel is turning. Expected output should be between 0.5 to 3.5 volts. Decision point: if the voltage is outside this range, consider replacing the sensor or checking for further circuit issues.
- 4Clear the code and take the vehicle for a test drive to see if the code returns. Decision point: if the code comes back, investigate the ABS control module further.
Common causes
- Dirty or damaged wheel speed sensor
- Wiring issues in sensor circuit
- Faulty ABS control module
- Excessive corrosion at connection points
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code appearing?
It's best to fix the issue as soon as possible. The ABS function may be impaired, which could affect braking performance in emergencies.
Will this problem come back after resetting?
If the underlying issue isn't resolved, yes, the code will likely return after a reset.
What if it pairs with other codes?
Other codes related to the ABS system might indicate multiple sensor issues or wiring faults; follow the diagnostics for all related codes.
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