Ambient Lighting Control Unit, Basic Function - GF82.20-P-9892A

Model 118, 177, 247, 293 with code 877 (Ambient lighting) 

Model 167 with code 876 (ambient lighting) 

Model 213, 238, 257, 290 as of model year 2021 with code 877 (Ambient lighting) 

Model 213, 238, 257, 290 as of model year 2021 with code 891 (Premium ambiance illumination) 

Overview 

This document contains information on:

• General 
• Function requirements 
• Function 

General 

The ambient lighting control unit actuates the ambient lighting elements for various areas of the vehicle interior.

Function requirements 

• Circuit 30t ON Function

Depending on the equipment installed, the ambient lighting is controlled by the vehicle occupants using either the touchpad/lower control panel, the central display or the microphone.

Depending on the actuation involved, the signal is forwarded by the respective component part to the head unit/instrument cluster control unit, Supplemental Restraint System control unit, integrated rear right outer radar sensor or the central operating unit.

The central operating unit has a direct CAN connection to the ambient lighting control unit.

The head unit/instrument cluster control unit, the Supplemental Restraint System control unit or the integrated rear right outer radar sensor in turn are connected to the electronic ignition lock control unit over a CAN connection. The electronic ignition lock control unit then forwards the information over a CAN connection to the ambient lighting control unit.

	Detailed information
	Ambient lighting control unit, detailed information	Model 118, 177, 247 with code 877 (Ambient lighting)	GF82.20-P-0005A
		Model 167 with code 876 (ambient lighting)	GF82.20-P-0005B
		Model 293 with code 877 (Ambient lighting)	GF82.20-P-0005C