GF80.61-P-4204CE Component Description For Keyless-Go Control Unit

GF80.61-P-4204CE Component Description For Keyless-Go Control Unit
- with CODE (889) Keyless Go

Component Identification:

Location
The KEYLESS-GO control unit is located behind the right paneling in the trunk.

Task
The Keyless-Go control unit has the following purposes:
^ Reading in of sensors, pickups and signals
^ Evaluation of input factors
^ Actuation of components

Reading in of sensors, pickups and signals

The input factors are read in via the following connections:
^ Direct line
^ Interior CAN (CAN B)

Direct line
The signals from the following components are read via a direct line:
- Left front KEYLESS GO door handle (A17/1)
- Right front KEYLESS GO door handle (A17/2)
- Left rear KEYLESS GO door handle (A17/3)
- Right rear KEYLESS GO door handle (A17/4)
- TV 2 and KEYLESS-GO antenna amplifier (A94/2)
(model 204.0/9) or KEYLESS-GO antenna amplifier (A94/4) (model 204.2)

Interior CAN

The following signals are read in over the interior CAN:
- KEYLESS-GO start/stop button status (S2/3) (provided by electronic ignition lock control unit (N73))
- Status of trunk lid external operation switch (S88/8) (model 204.0) or liftgate external operation switch (S88/8) (model 204.2/9) (provided by rear SAM control unit with fuse and relay module (N10/2))
- Status of brake light switch (S9/1) (provided by electronic stability program control unit (N30/4) and relayed by front SAM control unit with fuse and relay module (N10/1))
- Speed signal (provided by instrument cluster (A1))

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

The following components are actuated via a direct line:
- trunk Keyless-Go antenna (A2/35)
- left rear door KEYLESS GO antenna(A2/39)
- Right rear door KEYLESS GO antenna(A2/41) interior Keyless-Go antenna (A2/61)
- interior Keyless-Go antenna (A2/61)
- Additional on vehicles up to 31.5.10:
- Left front door opening assist motor (A85m2)
- Right front door opening assist motor (A85/1m2)
- Left rear door opening assist motor (A85/3m2)
- Right rear door opening assist motor (A85/4m2)