49F7

49F7 - P200A

Information saved in
DDE

Fault code
49F7 - P200A

Fault text
DDE: Swirl-flap actuator: elektrically faulty (EEPROM)

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 1850 ms and
2150 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.
When the error counter reaches the limit 1 the diagnostic
trouble code is logged.

Action in service
Check swirl-valve actuator.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none