4D00 - P244B (DDE)

4D00 - P244B

Information saved in
DDE

Fault code
4D00 - P244B

Fault text
DDE: Exhaust backpressure sensor, signal: Signal too high

Fault description
Monitoring of particulate filter differential-pressure sensor.
A diagnostic trouble code is logged when the particulate
filter's pressure differential rises beyond the maximum limit.

Condition for fault identification
Test condition:
The check runs continuously in a 100 ms grid.
Voltage condition:
The check runs continuously in a 100 ms grid.

Condition for fault memory entry
Debounce (2000 ms)

Action in service
1. Check hose and electrical connections, test exhaust
backpressure.
2. If wiring and plug connections are OK:
Replace differential-pressure sensor.

Fault effect and breakdown warning
Proceed to the nearest BMW Service facility.

Driver information
Warning light:
MIL

Service instruction
none