Fault-Code Library · Vehicle speed sensing
P0501: Vehicle speed sensor range / performance
Vehicle speed information is implausible compared with wheel speed, gearbox, or engine operating data.
Common symptoms
- •ABS or stability warning
- •Cruise control disabled
- •Incorrect speed display
- •Gearbox shift concerns
Likely causes
- •Wheel-speed sensor issue
- •Transmission speed sensor fault
- •Wiring problem
- •Incorrect tire size or module coding
First checks
- •Compare all wheel-speed signals
- •Check transmission speed data
- •Inspect tire sizes, sensor wiring, and related ABS faults
Important
Speed-signal faults can affect ABS, stability control, gearbox logic, and driver-assistance systems.
A fault code identifies a detected condition, not a failed part. Confirm manufacturer-specific subcodes and live data.
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