P0048

4180 - P0048

Information saved in
DDE

Fault code
4180 - P0048

Fault text
DDE: Pressure converter, turbine control flap, activation:
Short circuit to positive

Fault description
The DDE recognizes a short circuit to positive in the output
stage:
With single-stage boost: Boost-pressure actuator.
With multi-stage boost: Turbine control flap pressure
converter.

Condition for fault identification
Test condition:
The check frequency depends on the process sequence
control.
Voltage condition:
The check frequency depends on the process sequence
control.

Condition for fault memory entry
Debounce (220 ms)

Action in service
1. Check wires and plug connections.
2. If wiring and plug connections are OK:
With single-stage boost: Replace charge-air pressure
controller.
With multi-stage boost: Replace turbine control flap
pressure converter.

Fault effect and breakdown warning
The error disables regeneration in the particulate filter.

Driver information
Warning light:
MIL

Service instruction
none