Tag
#wheel speed
4 posts in Car Diagnostics blog about "wheel speed" — OBD-II diagnostics, DTC codes, repair. ← All posts
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Traction control cutting in on dry roads: a sensor, not the weather
The lamp flickers and the engine cuts power on a dry straight road. The system is not malfunctioning — it is reacting to data that is wrong.
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ABS and traction lights on together: one sensor, three warnings
Several lamps arriving at once looks like several faults. It almost never is — they share one data source, and finding which wheel is lying takes ten minutes.
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U0121: lost communication with the ABS module
When the ABS module goes quiet, wheel speed disappears from the whole car. Three warning lights come on at once and half the driver assistance systems switch themselves off.
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ABS wheel speed sensor: codes C0035, C0040, C0045 and how to diagnose "ABS flashing in turns"
What OBD-II shows about wheel speed sensors, difference between active and passive types, how to diagnose ABS/ESP problems via C-codes, and why a "worn tone ring" is common.