Mercedes-Benz E-class W212/S212/C207/A207 facelift (2013-2016) front sam control module w/ fuse/ relay module Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 HR+ VR+ 1 2 3 4 CD 1 2 3 4 LVDS- RES LVDS+ GND 1 2 3 4 MOST OUT MOST IN 3 5 6 4 2 1 (NOT USED) ANST ANST (-) AUX 2 L AUX 2 AUX 2 GND AUX 2 L AUX 2 SHIELD AUX 2 R- AUX GND AUX JACK ELECTRICAL CONNECTOR AUX L + AUX R + AUX SHIELD BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CALL SYSTEM) EMERGENCY CALL SYSTEM CONTROL UNIT CAN A H CAN A L CAN B H CAN B L MUTE CAN B H 31 ON/OFF COMAND CONTROL UNIT COMAND FAN MOTOR COMAND FAN MOTOR (LEFT CENTER OF DASH) COMPENSATOR/CELLULAR TELEPHONE SYSTEM UMTS COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM MOST DATA BUS CIRCUIT DATA DIAG DIAG (+) AUX 2 R AUX 2 GND EMERGENCY CALL SYSTEM CONTROL UNIT FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 16 FUSE 26 FUSE 26 FUSE 16 GND CD GND DATA - GRN WIRE GRN/YEL WIRE HANDS-FREE SYSTEM MICROPHONE HEAD PHONES ELECTRICAL CONNECTOR HEAD PHONES ELECTRICAL CONNECTOR (W/ SPLIT VIEW) HL- CAN B L HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED HR - HR- VR- INSIDE REARVIEW MIRROR INSIDE REARVIEW MIRROR TRACER WIRE CONNECTOR SLEEVE LEFT DOOR BASS SPEAKER LEFT DOOR BASS SPEAKER LEFT DOOR SPEAKER LEFT DOOR SPEAKER LEFT DOOR TWEETER LEFT REAR BASS SPEAKER LEFT REAR SPEAKER LEFT REAR TWEETER LVDS MIC - MIC 2+ MOBILE PHONE ELECTRICAL CONNECTOR MOST DATA BUS CIRCUIT MOST IN MOST OUT MUTE NCA NCA WIRE NCA WIRE ORG/ BLU WIRE ORG/ WIRE PNK MIC 1+ WIRE PNK WIRE RED WIRE RED/YEL WIRE RES+ RIGHT REAR BASS SPEAKER RIGHT REAR RIGHT REAR BASS SPEAKER TWEETER RIGHT REAR SPEAKER RIGHT REAR TWEETER SHIELD TRACER WIRE CONNECTOR SLEEVE USB 1 USB 1 2 3 4 5 6 7 8 9 10 11 12 USB ELECTRICAL CONNECTOR VIO WIRE VL - VL HL VL+ HL+ PNK WIRE VL+ PNK HL+ WIRE VR+ W/ STATIONARY HEATER WAKE-UP WHT WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE

2 LCT ANT GPS GPS ANT NOT SHIELD NOT BLK WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BLU/VIO WIRE BREAKDOWN ASSISTANCE BUTTON BRN WIRE CAN D H CAN D L CAN-D H CAN-D L CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM COUPE CRASH (PINS: 34 TO 54 NOT USED) DIAGNOSTIC CONNECTOR (DLC) DIAGNOSTIC CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH) EMERGENCY CALL SYSTEM ANTENNA EMERGENCY CALL SYSTEM BUTTON EMERGENCY CALL SYSTEM CONTROL UNIT EMERGENCY CALL SYSTEM CONTROL UNIT (CENTER FRONT OF LUGGAGE COMPT) ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE (LEFT REAR OF FUSE 87 GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER GPS GRY WIRE GRY/BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES INFO INFO LED KEEP ON LCT MB INFO BUTTON MB-INFO, BREAKDOWN ASSISTANCE BUTTON MIKR (-) MIKR + MIKR - (-) KEEP ON MULTI-FUNCTION ANTENNA MUTE NCA WIRE OVERHEAD CONTROL PANEL ELECTRONICS RADIO (W/ AUDIO 20) COMMAND CONTROL UNIT (IF EQUIPPED) RADIO (W/ AUDIO 20), COMAND CONTROL UNIT (IF EQUIPPED) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED/BLU WIRE SHIELD SHIELD ANT GPS SHIELD SIG ANT NOT SHIELD 1 2 SIG SOS SOS LED SOS LED WS LED INFO LED SOS WS INFO CRASH SOUND SYSTEM AMPLIFIER CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) TEL VIO WIRE W/ COMAND W/ COMAND, AUDIO 20 W/ NAVIGATION W/ W/O NAVIGATION NAVIGATION W/O COMAND, AUDIO 20 W/O NAVIGATION WS LED YEL WIRE YEL/BLK WIRE YEL/RED WIRE YEL/VIO WIRE

2 LCT ANT GPS GPS ANT NOT SHIELD NOT BLK WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BLU/VIO WIRE BREAKDOWN ASSISTANCE BUTTON BRN WIRE CAN D H CAN D L CAN-D H CAN-D L CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM COUPE CRASH (PINS: 34 TO 54 NOT USED) DIAGNOSTIC CONNECTOR (DLC) DIAGNOSTIC CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH) EMERGENCY CALL SYSTEM ANTENNA EMERGENCY CALL SYSTEM BUTTON EMERGENCY CALL SYSTEM CONTROL UNIT EMERGENCY CALL SYSTEM CONTROL UNIT (CENTER FRONT OF LUGGAGE COMPT) ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE (LEFT REAR OF FUSE 87 GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER GPS GRY WIRE GRY/BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES INFO INFO LED KEEP ON LCT MB INFO BUTTON MB-INFO, BREAKDOWN ASSISTANCE BUTTON MIKR (-) MIKR + MIKR - (-) KEEP ON MULTI-FUNCTION ANTENNA MUTE NCA WIRE OVERHEAD CONTROL PANEL ELECTRONICS RADIO (W/ AUDIO 20) COMMAND CONTROL UNIT (IF EQUIPPED) RADIO (W/ AUDIO 20), COMAND CONTROL UNIT (IF EQUIPPED) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED/BLU WIRE SHIELD SHIELD ANT GPS SHIELD SIG ANT NOT SHIELD 1 2 SIG SOS SOS LED SOS LED WS LED INFO LED SOS WS INFO CRASH SOUND SYSTEM AMPLIFIER CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) TEL VIO WIRE W/ COMAND W/ COMAND, AUDIO 20 W/ NAVIGATION W/ W/O NAVIGATION NAVIGATION W/O COMAND, AUDIO 20 W/O NAVIGATION WS LED YEL WIRE YEL/BLK WIRE YEL/RED WIRE YEL/VIO WIRE

2 LCT ANT GPS GPS ANT NOT SHIELD NOT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BREAKDOWN ASSISTANCE BUTTON BRN WIRE BRN/GRN WIRE CAN D H CAN D L CAN-D H CAN-D L CENTER INSTRUMENT PANEL SPEAKER COMAND CONTROL UNIT (IF EQUIPPED) COMMAND CONTROL UNIT (IF EQUIPPED) COMPUTER DATA LINES SYSTEM CRASH DIAGNOSTIC CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH) EMERGENCY CALL SYSTEM ANTENNA EMERGENCY CALL SYSTEM ANTENNA (CENTER OF HAT SHELF) EMERGENCY CALL SYSTEM BUTTON EMERGENCY CALL SYSTEM CONTROL UNIT EMERGENCY CALL SYSTEM CONTROL UNIT (CENTER FRONT OF LUGGAGE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 83 FUSE 87 GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER (CENTER FRONT OF LUGGAGE COMPT) GPS GRN WIRE GRY WIRE GRY/BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ CIRCUIT INFO LED LCT MB INFO BUTTON MB-INFO, TELEDIAGNOSIS BUTTON MIC + MIC - MIC - MOBILE PHONE ELECTRICAL CONNECTOR MOBILE PHONE ELECTRICAL CONNECTOR (IF EQUIPPED), MULTI-FUNCTION ANTENNA MUTE NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE OVERHEAD CONTROL PANEL CONTROL MODULE (W/ POWER TILTING/ OVERHEAD CONTROL PANEL ELECTRONICS PNK/GRN WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (RIGHT SIDE OF LUGGAGE COMPT) RED/BLK WIRE SHIELD SHIELD ANT GPS SIG SIG SHIELD ANT NOT SHIELD SOS SOS LED SOUND SYSTEM AMPLIFIER CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) TEL VIO WIRE W/ ADVANCED SOUND SYSTEM W/ ADVANCED SOUND SYSTEM W/O ADVANCED SOUND SYSTEM W/ COMAND W/ COMMAND W/O ADVANCED SOUND SYSTEM W/O COMAND W/O COMMAND WHT WIRE WS LED YEL WIRE YEL/VIO WIRE

1 2 3 4 5 6 7 8 9 10 11 12 31 CAN A L 1 2 3 4 LVDS - RES LVDS + GND 4 3 2 1 NB BLK WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BRN WIRE CAN A H CAN A L COMPUTER DATA LINES SYSTEM CRADLE NAVIGATION MODULE FM/TMC ANTENNA SPLITTER FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 11 GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER GPS GPS SHIELD GRN WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LVDS MIC - NAVIGATION MODULE NCA WIRE ORG/ WIRE REAR WINDOW ANTENNA FM ANTENNA AMPLIFIER RES+ SHIELD SHIELD ANT SHIELD TMC TMC TMC SHIELD VOICE VOICE + SHIELD MIC + WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 31 CAN A L 1 2 3 4 LVDS - RES LVDS + GND 4 3 2 1 NB BLK WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BRN WIRE CAN A H CAN A L COMPUTER DATA LINES SYSTEM CRADLE NAVIGATION MODULE FM/TMC ANTENNA SPLITTER FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 11 GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER GPS GPS SHIELD GRN WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LVDS MIC - NAVIGATION MODULE NCA WIRE ORG/ WIRE REAR WINDOW ANTENNA FM ANTENNA AMPLIFIER RES+ SHIELD SHIELD ANT SHIELD TMC TMC TMC SHIELD VOICE VOICE + SHIELD MIC + WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 31 CAN A L 1 2 3 4 LVDS - RES LVDS + GND 1 FM 4 3 2 1 NB ANTENNA AMPLIFIER (LEFT "C" PILLAR) BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CAN A H CAN A L COMPUTER DATA LINES SYSTEM CRADLE NAVIGATION MODULE FM/TMC ANTENNA SPLITTER FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 11 GPS GPS SHIELD GRN WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT "C" PILLAR) LVDS MIC - MULTI-FUNCTION ANTENNA NAVIGATION MODULE NCA WIRE ORG/ WIRE RADIO RED/GRN WIRE RED/WHT WIRE RES+ SHIELD SHIELD ANT SHIELD TMC TMC TMC SHIELD VOICE VOICE + SHIELD MIC + WAGON WHT WIRE

1 2 3 4 5 6 7 8 9 WH (-) BLK/WHT WIRE BLK/YEL WIRE BRN WIRE BRN/BLU WIRE CENTER LEFT FRONT PARKTRONIC DISTANCE SENSOR CENTER LEFT REAR PARKTRONIC DISTANCE SENSOR CENTER RIGHT FRONT PARKTRONIC DISTANCE SENSOR CENTER RIGHT REAR PARKTRONIC DISTANCE SENSOR COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 80 FUSE W/ FUSE, RELAY MODULE (RIGHT SIDE OF LUGGAGE COMPT) HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INNER LEFT FRONT PARKTRONIC DISTANCE SENSOR INNER LEFT REAR PARKTRONIC DISTANCE SENSOR INNER RIGHT FRONT PARKTRONIC DISTANCE SENSOR INNER RIGHT REAR PARKTRONIC DISTANCE SENSOR INSTRUMENT PANEL PARKING SYSTEM WARNING INDICATOR LIN 1 ORG/ WIRE OUTER LEFT FRONT PARKTRONIC DISTANCE SENSOR OUTER LEFT REAR PARKTRONIC DISTANCE SENSOR OUTER RIGHT FRONT PARKTRONIC DISTANCE SENSOR OUTER RIGHT REAR PARKTRONIC DISTANCE SENSOR PARKING SYSTEM BUTTON PARKTRONIC CONTROL UNIT PARKTRONIC CONTROL UNIT (RIGHT FRONT UPPER FOOTWELL) REAR PARKING SYSTEM WARNING INDICATOR REAR SAM CONTROL MODULE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED/YEL WIRE UPPER CONTROL PANEL CONTROL UNIT W/O PEDESTRIAN PROTECTION WAGON WH (+) WH (DATA) WH (DATA) (-) SV WHT WIRE WHT/RED WIRE WHT/YEL WIRE WV (+) WV (+) 31 WV (DATA) WV (DATA) YEL WIRE YEL/BLU WIRE YEL/GRY WIRE YEL/PNK WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

1 2 3 4 CD LVDS - RES LVDS + GND 1 2 3 4 GND LVDS + RES LVDS - 1 2 MOST OUT MOST IN 31 CAN A L ACCEPT/ TERMINATE PHONE CALL BUTTON ANT SAT AUDIO/COMAND CONTROL PANEL AUDIO/COMAND CONTROLLER AUDIO/COMAND DISPLAY BACK BUTTON BACK, VOICE CONTROL SYSTEM OFF BUTTON BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/RED WIRE BUTTONS +, - SETTING SPECIFIC FUNCTION, VOLUME CONTROL CAN A H CAN A L CAN B H CAN B L CAN B L COMPUTER DATA LINES SYSTEM CAN B H 31 CAN-A H CAN-A L CELLULAR TELEPHONE SYSTEM ANTENNA AMPLIFIER/ COMPENSATOR CELLULAR TELEPHONE SYSTEM ANTENNA AMPLIFIER/ COMPENSATOR (IF EQUIPPED) COMPUTER DATA LINES SYSTEM DELETE BUTTON FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT (PART OF STEERING COLUMN MODULE) FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 11 FUSE 13 FUSE 26 FUSE 84 FUSE FUSE FUSE FUSE W/ FUSE, RELAY MODULE (RIGHT SIDE OF LUGGAGE COMPT) GND CD GRN WIRE GRN/ORG WIRE GRN/WHT WIRE GRY/BLU WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED KEEP ON KEEP ON 14 15 16 LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP LVDS MOBILE PHONE ELECTRICAL CONNECTOR MOBILE PHONE ELECTRICAL CONNECTOR (IF EQUIPPED), MOST MOST DATA BUS CIRCUIT MOST IN MOST IN MOST MOST OUT MUTE BUTTON NCA WIRE OK BUTTON ORG/ WIRE PNK WIRE PNK/BLU WIRE RADIO REAR SAM CONTROL MODULE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RES+ RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SAT SCROLL OK FORWARD/ BUTTON BACK BUTTON SDAR CONTROL UNIT/ HIGH DEFINITION TUNER SDAR CONTROL UNIT/ HIGH DEFINITION TUNER (LEFT SIDE OF LUGGAGE COMPT) SHIELD SHIELD ANT STEERING COLUMN MODULE CONTROL UNIT STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) SYSTEM SELECTION BUTTON VOICE CONTROL SYSTEM ON BUTTON W/ DIRECT SELECT W/O DIRECT SELECT WAKE UP MOST DATA 1 2 3 4 BUS CIRCUIT MOST OUT MOST IN WAKE-UP WHT WIRE YEL WIRE

1 2 3 4 CD LVDS - RES LVDS + GND 1 2 3 4 GND LVDS + RES LVDS - 1 2 MOST OUT MOST IN 31 CAN A L ACCEPT/ TERMINATE PHONE CALL BUTTON ANT SAT AUDIO/COMAND CONTROL PANEL AUDIO/COMAND CONTROLLER AUDIO/COMAND DISPLAY BACK BUTTON BACK, VOICE CONTROL SYSTEM OFF BUTTON BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/RED WIRE BUTTONS +, - SETTING SPECIFIC FUNCTION, VOLUME CONTROL CAN A H CAN A L CAN B H CAN B L CAN B L COMPUTER DATA LINES SYSTEM CAN B H 31 CAN-A H CAN-A L CELLULAR TELEPHONE SYSTEM ANTENNA AMPLIFIER/ COMPENSATOR CELLULAR TELEPHONE SYSTEM ANTENNA AMPLIFIER/ COMPENSATOR (IF EQUIPPED) COMPUTER DATA LINES SYSTEM DELETE BUTTON FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT (PART OF STEERING COLUMN MODULE) FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 11 FUSE 13 FUSE 26 FUSE 84 FUSE FUSE FUSE FUSE W/ FUSE, RELAY MODULE (RIGHT SIDE OF LUGGAGE COMPT) GND CD GRN WIRE GRN/ORG WIRE GRN/WHT WIRE GRY/BLU WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED KEEP ON KEEP ON 14 15 16 LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP LVDS MOBILE PHONE ELECTRICAL CONNECTOR MOBILE PHONE ELECTRICAL CONNECTOR (IF EQUIPPED), MOST MOST DATA BUS CIRCUIT MOST IN MOST IN MOST MOST OUT MUTE BUTTON NCA WIRE OK BUTTON ORG/ WIRE PNK WIRE PNK/BLU WIRE RADIO REAR SAM CONTROL MODULE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RES+ RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SAT SCROLL OK FORWARD/ BUTTON BACK BUTTON SDAR CONTROL UNIT/ HIGH DEFINITION TUNER SDAR CONTROL UNIT/ HIGH DEFINITION TUNER (LEFT SIDE OF LUGGAGE COMPT) SHIELD SHIELD ANT STEERING COLUMN MODULE CONTROL UNIT STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) SYSTEM SELECTION BUTTON VOICE CONTROL SYSTEM ON BUTTON W/ DIRECT SELECT W/O DIRECT SELECT WAKE UP MOST DATA 1 2 3 4 BUS CIRCUIT MOST OUT MOST IN WAKE-UP WHT WIRE YEL WIRE