433B

433B - P0237

Information saved in
DDE

Fault code
433B - P0237

Fault text
DDE: Charge-air pressure sensor, range: lower physical
limit undershot

Fault description
Physical monitoring of boost-pressure sensor. The
diagnostic trouble code is logged when the physical sensor
signal for the boost-pressure sensor falls below the limit
value 200 mbar.

Condition for fault identification
Test condition:
The monitoring routine is executed only provided that no
electrical errors have been logged.
Voltage condition:
The monitoring routine is executed only provided that no
electrical errors have been logged.

Condition for fault memory entry
Debounce (2000 ms)

Action in service
1. Check wires and plug connections.
2. If wiring and plug connections are OK:
Replace boost-pressure sensor.

Fault effect and breakdown warning
Proceed to the nearest BMW Service facility.
Component hazard possible, avoid WOT/full throttle
operation.

Driver information
Warning light:
MIL

Service instruction
none