Fuel injection for exhaust gas aftertreatment
Check the circuit for the air and fuel pressure sensor in the valve block.Further information about the electrical cables and pins on the control unit to which the components are connected is available in SDP3 under the tab Check for the relevant components. See also the Workshop manual, section 03-35 Electronic control system, E67.There is a general description of the different troubleshooting methods for electrical faults in the Workshop Manual, subgroup 16-70.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Fault in the sensor which measures the air and fuel pressure in the valve block for exhaust gas aftertreatment.
Electrical fault in the circuit for the sensor which measures the pressure of air and fuel in the valve block.