Mercedes-Benz GLC-class X253 (2015-2019) supplemental restraint system control unit Wiring diagrams

360 DEGREE CAMERA CONTROL UNIT BACKUP CAMERA BRN WIRE CAN H H CAN H L CAN HMI H CAN HMI L CAN I H CAN I H PNK CAN I L WIRE CAN I L DOWNSTREAM OF SCR CATALYTIC CONVERTER NOX SENSOR CONTROL UNIT DRIVETRAIN SENSOR CAN (CAN I) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR HEAD-UP DISPLAY INSTRUMENT CLUSTER LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR NCA WIRE NOX SENSOR CONTROL UNIT PNK WIRE PNK/WHT WIRE RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT TIRE PRESSURE MONITOR CONTROL UNIT USER INTERFACE CAN (CAN HMI) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR VIO WIRE VIO/WHT WIRE W/ 360 DEGREE CAMERA W/ BACKUP CAMERA YEL WIRE YEL/WHT WIRE

'MEDIA' BUTTON 'NAVI' BUTTON 'ON' BUTTON 'RADIO' BUTTON 'TEL' BUTTON 360 DEGREE CAMERA BUTTON ACTIVE LANE KEEPING ASSIST BUTTON AGILITY SELECT SWITCH ATA (EDW) FUNCTION INDICATOR FRONT PASSENGER AIRBAG ON INDICATOR LAMP AUDIO/COMAND CONTROL PANEL AUDIO/COMAND CONTROLLER BACK BUTTON BACK GROUND AUDIO BUTTON BELT EXTENDER BUTTON BLK/RED WIRE BLK/WHT WIRE BRN WIRE CAN A H CAN A L CAN HMI H CAN HMI L CD/DVD SINGLE DRIVE BUTTON COC BEL COC SW COMPUTER COMPUTER DATA LINES SYSTEM DATA LINES DR (+) DRIVER-SIDE INSTRUMENT PANEL BUTTON GROUP DSR DSR SIG DVD CHANGER CHARGING BUTTON DYNAMIC SELECT SWITCH (IF EQUIPPED) ECO START/STOP FUNCTION BUTTON FRONT PASSENGER AIRBAG OFF INDICATOR LAMP FUSE 209 FUSE 331 FUSE 336 FUSE 339 GRY/BLK WIRE GRY/GRN WIRE HAZARD WARNING SYSTEM BUTTON HEAD-UP DISPLAY BUTTON HOME, FAVORITES BUTTON HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT FUSE, RELAY MODULE LEFT LOWER CONTROL PANEL LIN 1 OFFROAD OPERATING PANEL PARKING SYSTEM BUTTON POWER DISTRIBUTION SYSTEM RED WIRE RED/PNK WIRE RED/WHT WIRE RED/YEL WIRE RIGHT A-PILLAR FUSE BOX RIGHT LOWER CONTROL PANEL SIG OFFROAD SPORT EXHAUST SYSTEM BUTTON STEER ASSIST BUTTON SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SYSTEM TOUCH PAD UPPER CONTROL PANEL CONTROL UNIT VEHICLE BUTTON VEHICLE LEVEL BUTTON VIO/GRN WIRE VOLUME CONTROL BUTTON WHT WIRE WHT/GRY WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/WHT WIRE

BBV VR BCL SW DR(-) BLK WIRE BLU WIRE BRAKE FLUID LEVEL SWITCH BRAKE FLUID, PARKING BRAKE INDICATOR LAMP BRAKE SYSTEM WARNING LAMP BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN B L RBA-1 CAN H L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVER SEAT BELT BUCKLE SWITCH ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX FRONT SAM CONTROL UNIT FUSE 1 FUSE 200 FUSE 208 FUSE 316 FUSE 465 FUSE 466 GRN WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR LOCK LEFT FRONT DOOR ROTARY TUMBLER SWITCH LEFT FUSE, RELAY MODULE MULTI-FUNCTION DISPLAY NCA WIRE PWR-1 REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT A-PILLAR FUSE BOX RIGHT FRONT BRAKE WEAR SENSOR RIGHT REAR BRAKE WEAR SENSOR SEAT BELT WARNING LAMP SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SW 1 SW 2 SW 3 SW 4 VIO WIRE VIO/WHT WIRE WHT/GRY WIRE YEL WIRE YEL/WHT WIRE

BF L DR (-) BF L FPS (-) BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLU WIRE BLU/GRN WIRE BLU/ORG WIRE BLU/PNK WIRE BLU/YEL WIRE BRN WIRE BRN/YEL WIRE CAN H L COMPUTER DATA LINES SYSTEM CRASH ANALOG CRASH LH (+) CRASH RF (+) DRIVER SIDE BAG SQUIB EXCEPT CONVERTIBLE FRONT PASSENGER ANCHOR FITTING TENSIONER SQUIB FRONT SAM CONTROL UNIT GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/YEL WIRE LEFT HEAD BAG SQUIB LEFT REAR EMERGENCY TENSIONING RETRACTOR SQUIB LEFT REAR ENGINE HOOD LIFTER LEFT SIDE BAG SENSOR LEFT WINDOW BAG SQUIB ME-SFI (ME) CONTROL UNIT PNK/BLK WIRE RBA-1 RIGHT FRONTAL ACCELERATION SENSOR RIGHT HEAD BAG SQUIB RIGHT REAR EMERGENCY TENSIONING RETRACTOR SQUIB RIGHT REAR ENGINE HOOD LIFTER RIGHT REAR SIDE BAG SQUIB RIGHT WINDOW BAG SQUIB SB BF PS (-) SB DR (-) SB RR (+) SB RR (-) SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT TNSG RTR DR (+) TNSG RTR LR (+) TNSG RTR RR (-) USA USA W/ SEAT OCCUPANCY RECOGNITION W/O SEAT OCCUPANCY RECOGNITION VIO WIRE VIO/WHT WIRE VIO/YEL WIRE WB L (+) WB R (-) WHT/GRN WIRE YEL WIRE

ACT ENG HD (-) ACT ENG HD R (-) BCL SW DR(-) BCL SW PS (-) BLK WIRE BLK/ORG WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/PNK WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM CRASH DR LR (-) CRASH DR RR (-) CRASH FR L (-) CRASH FR R (+) CRASH LF (+) CRASH RH (+) DRIVER SEAT POSITION DETECTION SWITCH DRIVER-SIDE ANCHOR FITTING TENSIONER SQUIB EXTINGUISHING AGENT TANK SQUIB FRONT PASSENGER SEAT POSITION DETECTION SWITCH FUSE 218 FUSE 316 GRN WIRE GRN/BLK WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ LEFT FRONT BUMPER PEDESTRIAN PROTECTION SENSOR LEFT FRONT DOOR PRESSURE SENSOR LEFT FRONTAL ACCELERATION SENSOR LEFT FUSE, RELAY MODULE LEFT REAR DOOR PRESSURE SENSOR PNK WIRE PNK/RED WIRE RED/PNK WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT A-PILLAR FUSE BOX RIGHT FRONT BUMPER PEDESTRIAN PROTECTION SENSOR RIGHT FRONT DOOR PRESSURE SENSOR RIGHT REAR DOOR PRESSURE SENSOR RIGHT ROLL BAR SQUIB SB LR (-) SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT TNSG RTR FPS (-) UEB L (+) UEB R (+) USA VIO WIRE VIO/YEL WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE YEL WIRE YEL/WHT WIRE