C0950
Tire Pressure Monitoring Sensor Front Left
The TPMS sensor at the front left wheel does not transmit a valid signal. Indirect TPMS variants raise this when the wheel-speed-based estimation fails for that wheel.
- Check engine light: Not always
- Emissions related: No
- Repair difficulty: medium
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Common causes
Ordered by how often each turns out to be the cause.
- Sensor battery depletedCommon
- Sensor damaged during tire changePossible
Parts involved
- Tpms Sensor Fl
- Tpms Module
C0950 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.