OBD-II code · generic
P203B
Reductant Level Sensor A Circuit Range/Performance
- System
- P2 — Powertrain / emissions (generic)
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does P203B mean?
P203B is defined as “Reductant Level Sensor A Circuit Range/Performance”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Related codes
- P203AReductant Level Sensor A Circuit
- P203CReductant Level Sensor A Circuit Low
- P2039Reductant Injection Air Pressure Sensor Circuit Low Input
- P203DReductant Level Sensor A Circuit High
- P2038Reductant Injection Air Pressure Sensor Circuit Range/Performance
- P203EReductant Level Sensor A Circuit Intermittent/Erratic
Look up another code
This page is general information; an exact diagnosis needs measurements and a technician’s check.