4B7F - P0472 (DDE)

4B7F - P0472

Information saved in
DDE

Fault code
4B7F - P0472

Fault text
DDE: Exhaust-gas pressure sensor before turbocharger,
signal: Open or short circuit to ground

Fault description
Pre-turbocharger exhaust-gas pressure sensor monitoring
function. The diagnostic trouble code is logged when the
raw sensor signal (voltage) is less than the specified lower
limit 100 mV.

Condition for fault identification
Test condition:
The monitoring function is only implemented when no
sensor power-supply problem is logged.
Voltage condition:
The monitoring function is only implemented when no
sensor power-supply problem is logged.

Condition for fault memory entry
Debounce (600 ms)

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

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

Driver information
Warning light:
MIL

Service instruction
none