OBD-II code · Chassis
C0903 TPMS Sensor 2 Position Performance
The tire pressure monitoring receiver cannot reliably localize sensor 2 to a wheel position. Pressure values may be assigned to the wrong wheel until relearn is completed.
Is it safe to drive with C0903?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPosition relearn required
- PossibleWeak sensor signal at receiver
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.2–0.8 h
- Emissions test
- Usually unaffected
- Parts involved
- TPMS Sensor, TPMS Receiver
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.