Operation CHARM: Car repair manuals for everyone.

GF91.30-P-2120CA Component Description For AIRSCARF System Control Unit,




GF91.30-P-2120CA Component Description For AIRSCARF System Control Unit,








N25/7 AIRSCARF system control unit

Location
The AIRSCARF system control unit is located in the trunk behind the right trunk lining.

Task
The AIRSCARF system control unit has the following tasks:
- Reading in of sensors and signals
- Evaluation of input factors
- Actuation of components

Reading in of sensors and signals
The input factors are read in via the following connection:
- Interior CAN (CAN B)

Interior CAN
The following signals are read in over the interior CAN:
- By the front SAM control unit with fuse and relay module (N10/1):
- Outside temperature sensor signal (B14)
- Status of the left AIRSCARF button (N72/1s21)
- Status of the right AIRSCARF button (N72/1s22)

- Provided by the AAC control and operating unit (N22/7):
- Interior temperature sensor signal (B10/4)

- Provided by the rear control unit (N22/6):
- Soft top status

- Provided by instrument cluster (A1):
- Vehicle speed

Evaluation of input factors
The input factors that have been read in are evaluated by the integrated microprocessor and the relevant components are then actuated.

Actuation of components
Components are actuated with the following lines:
- Direct line
- Interior CAN

Direct line
The following components are actuated via a direct line:
- Left AIRSCARF fan motor (M4/10)
- Right AIRSCARF fan motor (M4/11)
- Left AIRSCARF heating element (R22/5)
- Right AIRSCARF heating element (R22/6)

Interior CAN
The following components are actuated over the interior CAN:
- from the front SAM control unit via the UCP control unit (N72/1) and the instrument panel LIN (LIN 1):
- LED for the left AIRSCARF button
- LED for the right AIRSCARF button