Reductant tank
Proceed as follows: Check using SDP3 under EEC3>Inspection>Troubleshooting>Individual inspections>Tank level sensor testing whether the reductant level sensor indicates correct values. The sensor value must be 100% when the reductant tank is full and 0% when the reductant tank is empty. If the reductant level is high and the fault code is still active: Check the connectors and electrical cables to the circuit for the reductant pick-up unit. If the connectors and electrical cables seem to be intact, renew the reductant pick-up unit.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
The level of reductant in the reductant tank is low.
Possible causes: There is too little reductant in the reductant tank.Fault in the reductant level sensor.