The voltage supply to the exhaust gas temperature sensors.
Check the circuit for the exhaust gas temperature sensors for exhaust gas aftertreatment.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. Deactivate the fault code as follows: Switch the power off and on with the starter key.Carry 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
Fault in the voltage supply to the exhaust gas temperature sensors for exhaust gas aftertreatment.
Electrical fault in the circuit for the temperature sensors for exhaust gas aftertreatment. The circuit is short-circuited to ground.