C065DRight Front Wheel Speed Sensor B Correlation
- Generic OBD-II code · Chassis
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- C065D says the second right front speed value disagrees with its comparison partners although no circuit fault is found. What it is compared with depends on the architecture. A Knorr-Bremse patent for commercial vehicles lets a separate redundancy system read part of the wheel speeds, for instance one wheel per axle, and exchanges all values over CAN, which makes a second sensor at every wheel unnecessary; there a mismatch can also stem from the data link between two control units. Continental's sensor with two elements can either switch to the healthy element or average both, which first requires deciding whether they agree. For automated driving, Bosch Engineering adds a redundant brake unit to its integrated power brake. No carmaker publishes C065D or its tolerance.
- What you may notice
- Warning for brake or driver assistance system after a drive
- Automated driving functions refused, ABS usually unaffected
- Likely causes
- LikelySensor B badly seated or air gap differing from sensor A
- PossibleEncoder track damaged where only one element reads it
- RareDisturbed data exchange between the brake control units
- Repair
- Medium · Usually a job for a workshop.Typical cost: €60 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.