Reductant pump motor speed is too high.
1. Use the diagnostic tool to run the pump test. 2. If the pump motor speed is too high, the test will fail. 3. If that does not solve the problem check the harness and connectors between the EEC control unit (E67) and the reductant pump (V183) for electrical failure. 4. If no electrical failure in the harness or connectors are found, change the pump. If a failure has been found and corrected, use the reductant circuit test to check that the system is working and to inactivate the fault code.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Reductant pump motor speed sensor gives a value that is higher than the maximum allowed speed
1. The reductant pump (V183) motor speed sensor has an electrical failure. 2. The reductant (V183) pump motor has an electrical failure. 3. There is a fault in the control signal from the EEC control unit (E67) to the reductant pump (V183)