P0046

41A3 - P0046

Information saved in
DDE

Fault code
41A3 - P0046

Fault text
DDE: Pressure converter, turbine control flap, activation:
Output stage, overtemperature

Fault description
The DDE recognizes an over-temperature fault 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
Check E-Box fan/DDE cooling. If E-Box fan/DDE cooling
are OK:
Replace DDE control module.

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

Driver information
Warning light:
MIL

Service instruction
none