P0404

4B3F - P0404

Information saved in
DDE

Fault code
4B3F - P0404

Fault text
DDE: Exhaust-gas recirculation controller, activation:
Output stage, overtemperature

Fault description
The DDE recognizes an over-temperature fault in the output
stage:
EGR actuator.

Condition for fault identification
Test condition:
The test routine is implemented each time process runs.
Voltage condition:
The test routine is implemented each time process runs.

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
-

Driver information
Warning light:
MIL_SVS

Service instruction
none