OBD-II code · Network
U059E Invalid Data Received From NOx Sensor A
A receiving module detected implausible data from NOx sensor A (smart sensor with own ECU). NOx concentration or pumping current values fail plausibility checks and are rejected; SCR control falls back to substitute values.
Is it safe to drive with U059E?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyModule internal fault or sensor input drift
- PossibleSoftware version mismatch after replacement
- Less likelyGateway module routing CAN messages incorrectly
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Nox Sensor A
Related codes
- U059FInvalid Data Received From NOx Sensor B
- U05A8Invalid Data Received From NOx Sensor C
- U059BInvalid Data Received From Hybrid/EV Battery Pack Sensor Module
- U059CInvalid Data Received From Drive Motor Control Module C
- U059DInvalid Data Received From Drive Motor Control Module D
- U05A0Invalid Data Received From Evaporative Emission System Leak Detection Control Module
- U05A1NOx Sensor A Received Invalid Data From ECM/PCM
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.