Reductant circuit
â–¶ How to fix
Proceed as follows: Carry out the test "Checking the reductant circuit" using SDP3 under EEC3>Inspection>Guided troubleshooting. If the reductant pressure remains low check the connectors and electrical cables between the EEC control unit and reductant pressure sensor. If the connectors and electrical cables seem to be intact, renew the reductant doser. When the fault has been rectified the fault code can be deactivated by carrying out the test "Checking the reductant circuit" using SDP3.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
The reductant pressure is too low when the reductant pump is shut off.
Possible cause
Fault in the reductant pressure sensor or in its connectors or electrical cables.