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Home >> Mercedes Benz >> 2017 >> G550 >> Repair and Diagnosis >> Electrical >> Body Electrical >> Electrical System - Body - 463 Chassis (1 Of 3) >> Basic Knowledge >> Ambiance Illumination Control Unit, Component Description - GF82.20-P-5161GWM

Ambiance Illumination Control Unit, Component Description - GF82.20-P-5161GWM

Model 463 (except 463.342) 

as of model year 2019 

Fig 1: Ambiance Illumination Control Unit Components Location - Model 463 (Except 463.342) As Of Model Year 2019
G13669637Courtesy of MERCEDES-BENZ USA

Location 

The ambient lighting control unit is located on the right-hand A-pillar behind the trim.

Tasks 

The ambient lighting control unit has the following tasks:

Reading in of signals 

The signals are read in by the ambient lighting control unit via the interior CAN.

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 components are actuated via the following lines:

Left front door ambiance illumination LIN 

The signals are transmitted by the ambient lighting control unit via the left front door ambient lighting LIN.

Right front door ambiance illumination LIN 

The signals are transmitted by the ambient lighting control unit via the right front door ambient lighting LIN.

Left rear door ambiance illumination LIN 

The signals are transmitted by the ambient lighting control unit via the left rear door ambient lighting LIN.

Right rear door ambiance illumination LIN 

The signals are transmitted by the ambient lighting control unit via the right rear door ambient lighting LIN.

Cockpit ambiance illumination LIN 

The signals are transmitted by the ambient lighting control unit via the cockpit ambient lighting LIN.

Vehicle interior ambiance illumination LIN 

The signals are transmitted by the ambient lighting control unit via the vehicle interior ambient lighting LIN.

Rear passenger compartment footwell ambient lighting LIN 

The signals are sent by the ambient lighting control unit over the rear passenger compartment footwell ambient lighting LIN.

  Wiring diagram of ambient lighting control unit   PE82.20-P-2101-97ZHA