BT83.40-P-0001-02S | AAC pushbutton control module replaced by new version | |
MODEL WDB140.### #A as of 1.9.95 with CODE (581a) Air conditioning (automatic)
P83.40-2076-04
The new AAC pushbutton control module (N22) is equipped with a K1 serial interface (data bus from instrument cluster to pushbutton control module) and K2 (data bus from pushbutton control module to instrument cluster).
The following signals are transmitted via the K1 serial interface:
Outdoor temperature
Coolant temperature
Vehicle speed
Engine speed
Illumination (circuit 58d)
°F/°C
Full load cut-off (diesel)
Acceleration recognition (gasoline)
The following signals are transmitted via the K2 serial interface:
Refrigerant pressure
Idle speed increase (gasoline)