4BC3

4BC3 - P244C

Information saved in
DDE

Fault code
4BC3 - P244C

Fault text
DDE: Exhaust-gas temperature controller, plausibility:
Response time of outer control loop too high

Fault description
Monitoring of response lag of exhaust-gas temperature
control for the outer control circuit. The diagnostic trouble
code is logged when the period since activation of the inner
control circuit exceeds a limit value defined by operating
point.

Condition for fault identification
Test condition:
The test routine runs when the following conditions are
satisfied:
- The inner exhaust-gas temperature controller is enabled in
the current operating mode and no system errors should be
present.
- The inner exhaust-gas temperature controller must be
active.
The check runs continuously in a 100 ms grid.
Voltage condition:
The test routine runs when the following conditions are
satisfied:
- The inner exhaust-gas temperature controller is enabled in
the current operating mode and no system errors should be
present.
- The inner exhaust-gas temperature controller must be
active.
The check runs continuously in a 100 ms grid.

Condition for fault memory entry
Event debounced (1)

Action in service
-

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none