Improper SCR after run shutdown
â–¶ How to fix
Always shut down the system using the key and do not use the battery master switch when the after run active warning is lit in the ICL.
What you'll see
No driver-visible symptom recorded.
System reaction
The reductant dosing unit/units (V117, V231) may be compromised. The purpose of SCR after run is to make sure that the dosing unit have active cooling.
Diagnostic depth
Detection
Incorrect EEC control unit shutdown
Possible cause
Incorrect EEC control unit (E67) shutdown