Mercedes-Benz S-class W221 facelift (2009-2013) hot w/ chassis circuit 87 relay energized Wiring diagrams

AAC (KLA) CONTROL UNIT (CENTER DASH) BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/PNK WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DATA FRONT CENTER AIR OUTLET POTENTIOMETER FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 23 FUSE 31 FUSE 50 FUSE 54 (LEFT REAR ENGINE COMPT) GRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT W/ CHASSIS CIRCUIT 87 RELAY ENERGIZED HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED LEFT SIDE AIR OUTLET POTENTIOMETER LIN BUS LIN GND LIN DATA LIN-BUS CAN-B H CAN-B L LIN-BUS LIN-BUS PNK 31 SIG WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRY WIRE PNK/YEL WIRE REAR CENTER AIR OUTLET POTENTIOMETER RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE REFRIGERANT PRESSURE SENSOR (LEFT FRONT WHEELHOUSE) RIGHT REAR FOOTWELL RIGHT SIDE AIR OUTLET POTENTIOMETER VIO WIRE WHT/BLU WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN/WHT WIRE CAN H H CAN H L COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) FUSE GRN WIRE GRN/WHT WIRE HOT W/ CHASSIS CIRCUIT 87 RELAY ENERGIZED INSTRUMENT CLUSTER NCA WIRE NIGHT VISION ASSIST CONTROL UNIT (LEFT FRONT FOOTWELL) ORG/ WIRE ORG/WHT WIRE RED WIRE RED/WHT WIRE VIO WIRE VIO/WHT WIRE

1 2 3 4 5 6 CAN-C H CAN-C L NC 87 31 NC 1 2 3 4 5 CAN C L CAN C H AUX-SPLY 30 31 6 3 COMPUTER DATA LINES SYSTEM CAN-A H CAN-A L BLK WIRE BLU WIRE BLU/WHT WIRE BRAKE CTRL SOL VLV (VGS) BRN WIRE BRN/YEL WIRE CAN B L CAN B H CAN C H CAN C L CLUTCH CLUTCH CTRL CTRL SOL VLV SOL VLV (VGS) (VGS) COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM ELECTRIC CONTROL UNIT (VGS) ENGINE FRONT CENTRAL OPERATING UNIT FUSE 28 FUSE 6 COMPARTMENT PREFUSE BOX (RIGHT REAR MRI ENGINE COMPARTMENT) GEAR DISPLAY CAN-F-L CAN-F-H HOT AT ALL TIMES HOT W/ CHASSIS CIRCUIT 87 RELAY ENERGIZED HOT W/ CHASSIS CIRCUIT 87 RELAY ENERGIZED FUSE 32 INSTRUMENT CLUSTER INTELLIGENT SERVO MODULE FOR DIRECT SELECT (TRANSMISSION HOUSING) OUTPUT SPEED SENSOR (VGS) RED WIRE RED/GRN WIRE RED/VIO WIRE SELECTION RANGE SENSOR (VGS) SYSTEM TORQUE CONVERTER LOCKUP CLUTCH CTRL SOL VLV (VGS) TRANSMISSION MODE DISPLAY TRANSMISSION MODES BUTTON TRANSMISSION OIL TEMP SENSOR (VGS) TURBINE INTERNAL SPEED SPEED SENSOR SENSOR (VGS) (VGS) YEL WIRE YEL/RED WIRE YEL/WHT WIRE