OBD-II code · generic
U02A1
Lost Communication With NOx Sensor C
- System
- U — In-vehicle network
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does U02A1 mean?
U02A1 is defined as “Lost Communication With NOx Sensor C”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Related codes
- U02A0Invalid Data Received From Hybrid/EV Battery Interface Control Module D
- U02A2Lost Communication With Reductant Quality Module
- U029FLost Communication With Evaporative Emission System Leak Detection Control Module
- U02A3Lost Communication With Particulate Matter Sensor
- U029ELost Communication With NOx Sensor B
- U02A4Lost Communication With NH3 Sensor
Look up another code
This page is general information; an exact diagnosis needs measurements and a technician’s check.