OBD-II code · Network
U010E Lost Communication With Reductant Control Module
ECU lost CAN communication with the AdBlue/SCR reductant control module. Emissions affected. A communication loss with this module breaks any function relying on its data — diagnostic tools may show 'no response' and dependent modules can fall into limp mode.
Is it safe to drive with U010E?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyModule unpowered
- Less likelyGateway module routing CAN messages incorrectly
- Less likelyCAN terminating resistor (120 Ω) drifted out of spec
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
- 1–5 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Reductant Module, Can Bus
Related codes
- U010BLost Communication With Exhaust Gas Recirculation Control Module B
- U010CLost Communication With Turbocharger/Supercharger Control Module A
- U010DLost Communication With Turbocharger/Supercharger Control Module B
- U010FLost Communication With Air Conditioning Control Module
- U0110Lost Communication with Drive Motor Control Module
- U0111Lost Communication with Battery Energy Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.