OBD-II code · Powertrain (generic, extended)
P2159 Vehicle Speed Sensor B Range/Performance
The signal of the secondary vehicle speed sensor is implausible compared to other sensors. The ECU cannot use the value for fuel and ignition control or transmission shifting.
Is it safe to drive with P2159?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyFaulty vehicle speed sensor B
- PossibleDamaged wiring or connector
- Less likelySensor element aged beyond calibration window
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Vehicle Speed Sensor, Wheel Speed Sensor, Vss Wiring
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.