P242D

4714 - P242D

Information saved in
DDE

Fault code
4714 - P242D

Fault text
DDE: Exhaust-gas temperature sensor before SCR cat.,
signal: Open or short circuit to positive

Fault description
The diagnostic trouble code is logged when the raw voltage
signal of the exhaust-gas temperature sensor before the SCR
converter rises above the limit value 3285 mV.

Condition for fault identification
Test condition:
The test routine is executed only provided that no other
electrical faults are present. The error check proceeds
continuously according to the defined process grid.
Voltage condition:
The test routine is executed only provided that no other
electrical faults are present. The error check proceeds
continuously according to the defined process grid.

Condition for fault memory entry
Debounce (1000 ms) 1000 ms .

Action in service
1. Check wires and plug connections.
2. If wiring and plug connections are OK:
Replace exhaust-gas temperature sensor before the SCR
converter.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none