U030F

Software Incompatibility With Reductant Control Module

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

~$167 (est.)

Symptoms

Check Engine Light Is On
Reduced engine power
Increased consumption of AdBlue reagent
SCR system error message on dashboard
Activating emergency engine operation

Causes

Incompatible software version in the engine ECU
Incompatible software version in the reagent control module
Incorrect software update
Data corruption in module memory
Problems with communication between modules

How to Fix

Check software versions in the ECU and reagent module
Update the software of both modules to compatible versions
Check the integrity of the wiring harness between the modules
Reset errors and test drive
If necessary, replace the reagent control module

Related codes

U0315 U0100 U0121