46A7 - P200A (DDE)

46A7 - P200A

Information saved in
DDE

Fault code
46A7 - P200A

Fault text
DDE: Swirl-flap actuator: mechanical fault (control
deviation close to closed position)

Fault description
Swirl-valve actuator monitoring function.
The actuator reports an error to the DDE via the PWM
control-activation wire.
The DDE recognizes the error when the actuator grounds the
PWM control-activation signal between 400 ms and 600 ms.

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 (0 ms) Following detection of an error window
the error counter is raised and the error timer is started.
If an additional error is recognized within the time 6600 ms
the error counter is raised again and the timer is restarted.
If no error is recognized within the time, the error counter is
reset to zero and the timer is stopped.
The diagnostic trouble code is logged when the error counter
reaches the limit 3.

Action in service
Check the swirl-valve actuator for freedom of movement,
replace as indicated.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL_SVS

Service instruction
none