Trunk Lid Control Unit, Component Description - GF80.20-P-6050LF

Model 217.3 

Model 222 

with code 881 (Remote boot-lid closing) 

Shown model 222.0 

Location 

The trunk lid control, control unit is located in the left trunk in the area of the C-pillar.

Tasks 

The trunk lid control, control unit has the following purposes:

• 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 connections:

• Direct line 
• Interior CAN (CAN B) 

Direct line 

The signals from the following components are read via direct lines:

• Trunk lid position sensor (B24/16)

Interior CAN 

The following signals are read in over the interior CAN:

• Vehicle speed (from instrument cluster (A1))
• Status of driver trunk lid control button (S15/3) (Left front door control unit (N69/1))
• Status of trunk lid lock (A85/5) (rear SAM control unit (N10/8))
• Status of trunk lid control button (S62/26) (Rear SAM control unit)
• Circuit 15 status from electronic ignition lock control unit (N73)
• Status of open trunk lid control button on transmitter key (A8/1) (Electronic ignition lock control unit)
• Status of rear switch module (N38) (for code 871 (HANDS-FREE ACCESS)) and status of opening angle limiter (Electronic ignition lock control unit)

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 actuation of the components takes place via the following connections:

• Direct line 
• Interior CAN 

Direct line 

The following components are actuated via direct lines:

• Trunk lid control warning buzzer (H4/60) (for code 871 (HANDS-FREE ACCESS))
• Trunk lid control electric motor (M51/3m1)

Interior CAN 

The following signal is transmitted via interior CAN:

• Open trunk lid, request

Wiring diagram for trunk lid control, control unit

PE72.20-Q-2103-97SEA