P3001

3F41 - P3001

Information saved in
DDE

Fault code
3F41 - P3001

Fault text
DDE: Rail pressure sensor, offset test: Offset minimum
undershot

Fault description
Rail-pressure sensor offset test monitoring function. If the
raw value for rail pressure remains, for the period of 30 ms
during engine start, below the threshold 391 mV, or for the
period 100 ms at shutdown it remains below the threshold
391 mV the offset in the negative direction is too large and
the DTC is logged.

Condition for fault identification
Test condition:
The test routine is executed according to the programmed
time grid.
The error check is performed when the following conditions
are active:
- No electrical diagnostic trouble codes logged.
- Engine is in post-operational shutdown phase.
Voltage condition:
The test routine is executed according to the programmed
time grid.
The error check is performed when the following conditions
are active:
- No electrical diagnostic trouble codes logged.
- Engine is in post-operational shutdown phase.

Condition for fault memory entry
-At start: 30 ms
In post-operational shutdown phase: 100 ms

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

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none