3F30

3F30 - P0193

Information saved in
DDE

Fault code
3F30 - P0193

Fault text
DDE: Rail-pressure sensor, signal: Open or short circuit to
positive

Fault description
Rail pressure sensor monitoring function. The diagnostic
trouble code is logged when the raw sensor signal (voltage)
exceeds the specified upper limit 4749 mV. The error is also
recognized when the uncorrected raw sensor voltage is
greater than the limit value 4900 mV.

Condition for fault identification
Test condition:
The monitoring functions are only performed when no
sensor power-supply fault diagnostic trouble code has been
logged.
The test routine is executed continuously in a 10 ms grid.
Voltage condition:
The monitoring functions are only performed when no
sensor power-supply fault diagnostic trouble code has been
logged.
The test routine is executed continuously in a 10 ms grid.

Condition for fault memory entry
Debounce (140 ms)

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

Fault effect and breakdown warning
The error disables regeneration in the particulate filter.
Proceed to the nearest BMW Service facility.

Driver information
Warning light:
MIL_SVS

Service instruction
none