Mercedes-Benz S-class W221 facelift (2009-2013) memory switch Wiring diagrams

1 2 3 4 5 6 8 9 7 10 BSM WARN BSM BEREIT 1 2 3 FLAT WIRE FLAT WIRE FLAT WIRE UB 31 DATA 31 DATA 31 4 3 1 2 30 31 CAN-B L CAN-B H 4 5 6 FLAT WIRE FLAT WIRE FLAT WIRE 31 UB DATA AMBIENT LAMP AUTOMATIC DIMMING MIRROR BLK WIRE BRN WIRE BRN/RED WIRE CAN B L CAN B H COMPUTER DATA LINES SYSTEM DRIVER POWER WINDOW OUTSIDE MIRROR, TRUNK LID SWITCH GROUP FLAT WIRE FLAT WIRE FLAT WIRE FOLD IN/ FOLD OUT SWITCH FUSE 70 HOT AT ALL TIMES LEFT ELECTRICALLY ADJUSTABLE, HEATED OUTSIDE MIRROR LEFT FRONT SEAT OPERATION SWITCH GROUP LEFT OUTSIDE MIRROR TURN SIGNAL LAMP LEFT/RIGHT OUTSIDE MIRROR ADJUSTMENT SELECTION SWITCH MEMORY 1, 2, 3 SWITCH MEMORY SWITCH MIRROR ADJUSTMENT ROCKER SWITCH MIRROR FOLD-IN MOTOR MIRROR HEATER MIRROR IN/OUT ADJUST- MENT MOTOR MIRROR UP/DOWN ADJUST- MENT MIRROR IN/OUT ADJUST- MENT MOTOR MIRROR UP/DOWN ADJUST- MENT MOTOR MOTOR NCA WIRE RED WIRE RIGHT ELECTRICALLY ADJUSTABLE, HEATED OUTSIDE MIRROR RIGHT OUTSIDE MIRROR TURN SIGNAL LAMP

1 2 3 FLAT WIRE FLAT WIRE FLAT WIRE 1 2 CAN B L CAN B H 10 11 CAN-E H CAN-E L 14 5 13 11 12 9 3 1 7 H+ GND MLS- MLS+ H+ GND MLS- MLS+ 31 16 15 CAN-B L CAN-B H 3 2 1 DATA 31 UB BLK/WHT WIRE BLK/YEL WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT PREFUSE BOX FLAT WIRE FLAT WIRE FLAT WIRE FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) FUSE (RIGHT REAR ENGINE COMPT) GRN WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) LEFT FRONT SEAT OPERATION SWITCH GROUP MEMORY 1, 2, 3 SWITCH MEMORY SWITCH RAISE/LOWER, FORWARD/ BACKWARD SWITCH RED WIRE RED/WHT WIRE RED/YEL WIRE STEERING COLUMN IN/OUT MOTOR STEERING COLUMN MODULE (TOP OF STEERING COLUMN) STEERING COLUMN UP/DOWN MOTOR