4C0E - P242A (DDE)

4C0E - P242A

Information saved in
DDE

Fault code
4C0E - P242A

Fault text
Exhaust-gas temperature sensor before SCR cat.,
plausibility: Difference, measured from calculated exhaust-
gas temperature before SCR cat., too high

Fault description
The DTC is logged when the difference between the
measured and the simulated exhaust-gas temperature before
the SCR converter lies outside the plausibility window.

Condition for fault identification
Test condition:
The error check is activated when no other faults are stored
for the sensor.
Voltage condition:
The error check is activated when no other faults are stored
for the sensor.

Condition for fault memory entry
Debounce (60000 ms)

Action in service
Replace exhaust-gas temperature sensor before SCR
converter.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
Defective exhaust-gas temperature sensor before SCR cat.