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Home >> Mercedes Benz >> 2011 >> S65 >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical -- OEM Wiring Diagrams -- S-Class (221) >> Wiring Diagrams >> Wiring diagram for upper control panel control unit - PE54.21-P-2119-99SAA

Wiring diagram for upper control panel control unit - PE54.21-P-2119-99SAA

Code:  Designation:  Position: 
A0 Explanation of color codes 40 L
A40/9 Front central operating unit 26 L
A40/9s10 Freely programmable button 28 L
A40/9s3 Hazard warning system button 27 L
A40/9x1 Front central operating unit connector 24 H
A70/1 Analog clock 22 L
E13/1 Glove compartment lamp 6L
E17/15 Right front footwell lamp 8L
E17/16 Left front footwell lamp 9L
E43/1 Ambiance illumination LED 1 30 L
E43/2 Ambiance illumination LED 2 32 L
E43/3 Ambiance illumination LED 3 34 L
N10/1 Front SAM control module with fuse and relay module 2L
N72/1 Upper control panel control module 4A
N72/1 Upper control panel control module 12A
N72/1 Upper control panel control module 20 A
N72/1 Upper control panel control module 28 A
N72/1 Upper control panel control module 34 A
N72/1e2 ATA [EDW] function indicator 25 C
N72/1s30 STH/ZUH/residual heat button 20 C
N72/1s33 Left automatic air conditioning button 14C
N72/1s34 Left temperature selection button 15C
N72/1s35 Left blower button 16C
N72/1s36 Defrost/heated windshield button 17C
N72/1s37 Air recirculation button 18C
N72/1s38 OFF/residual heat button 19C
N72/1s39 Heated rear window button 21 C
N72/1s40 Right blower button 22 C
N72/1s41 Right temperature selection button 23 C
N72/1s42 Right automatic air conditioning button 24 C
S1 Exterior lamp switch 20 L
S17/9 Glove compartment lamp switch 5L
S1e1 Fog lamp indicator lamp 21 J
S1e2 Rear fog lamp indicator lamp 20 K
S1s1 HCS [SRA] switch 21 L
S1s9 Night vision assist button 19L
S6/2 Cockpit switch group 15L
S6/2e1 Automatic child seat recognition airbag OFF indicator lamp 16H
S6/2r1 Switch and controls illumination/night vision assist display dimmer 14K
S6/2r2 COMAND display dimmer 16K
S6/2s10 Level adjustment switch 15H
S6/2s11 ESP OFF switch 15J
S6/2s12 PTS OFF switch 15J
S6/2s13 COMAND display swivel left switch 14K
S6/2s14 COMAND display swivel right switch 15K
U12 Valid for left-hand steering 2E
U12 Valid for left-hand steering 7J
U13 Valid for right-hand steering 2F
U13 Valid for right-hand steering 7J
U884 Valid for ambiance illumination 30 E
W15 Ground (electronics power ground) 3H
W15 Ground (electronics power ground) 7L
W34 Ground (left footwell) 3H
W34 Ground (left footwell) 7L
X18 Cockpit wiring harness and FFS [RBA] connector 24 F
X29/1 Glove compartment lamp connector 4H
X30/34 Interior CAN/cockpit voltage distributor connector 11 L
X99/9 Separation point 9 30 H
X99/9 Separation point 9 31 H
X99/9 Separation point 9 33 H
Z6/30 Circuit 31 connector sleeve 7E
Z68/10 OBD LIN bus ground connector sleeve 18H
Z68/11 OBD LIN bus positive connector sleeve 19H
Z68/12 OBD LIN bus data connector sleeve 20 H
Fig 1: Upper Control Panel Control Unit Wiring Diagram (1 Of 3)
G07594365Courtesy of MERCEDES-BENZ USA
Fig 2: Upper Control Panel Control Unit Wiring Diagram (2 Of 3)
G07594366Courtesy of MERCEDES-BENZ USA
Fig 3: Upper Control Panel Control Unit Wiring Diagram (3 Of 3)
G07594367Courtesy of MERCEDES-BENZ USA