Voltage supply for components in the SCR system
Check the reductant doser, its connectors and electrical cables.Check battery voltage.Proceed as follows to verify that the fault has been rectified:Switch off the power with the starter key, wait for at least 90 seconds and switch on the power with the starter key again. If the fault has been rectified, the fault code becomes inactive. Clear the fault code.Switch the power off and on with the starter key three times in succession at 10 second intervals to extinguish the warning lamp.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
The voltage in the reductant doser power supply circuit has been too low.
Short circuit to battery voltage in the reductant doser power supply circuit.