Supersedes Technical Service Bulletin Group 01 number 13-32 dated September 26, 2013. The MIL is on. DTC P203B00 (Reductant Level Sensor Circuit Range/Performance) is stored in the engine control module (ECM), J623 (address word 01).Due to a production issue for the level sensor, the ECM cannot correctly read the reductant (AdBlue) fluid level.
