Code result
C0234
Wheel Speed Sensor Frequency Error
Moderate severity
What it means
The ABS control module has detected that one of the wheel speed sensor signals has a frequency outside the plausible range, e.g. unrealistically high pulses or signal dropouts at speed. Stability control may be limited.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Tone ring damaged, missing teeth, or contaminated
highOne of the most commonly reported causes for this code — check this first.
Sensor air gap incorrect (loose mounting)
mediumA plausible cause — test and verify before replacing parts.
Wheel speed sensor degraded
lowLess common, but worth ruling out after the more likely causes.
Related help
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