Mercedes-Benz GLS-class X166 (2015-2019) computer data lines system Wiring diagrams

11 12 SIG LI 2.1L TURBO DIESEL 3.0L TURBO, 3.5L, 3.5L FLEX 6 7 SIG (+) AC HOUSING, AIR RECIRCULATION MODE BUTTON AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK WIRE BLK/WHT WIRE BLOWER BLOWER MOTOR BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COCKPIT CIRCUIT 30 FUSE BOX COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP COOLANT TEMPERATURE GAUGE COOLANT TEMPERATURE WARNING LAMP DEFOGGER SYSTEM DRIVER SIDE AIR VENT IONIZER ENGINE COMPARTMENT FUSE, RELAY MODULE EVAPORATOR TEMPERATURE SENSOR FRESH AIR/ AIR RECIRCULATION FLAP ACTUATOR MOTOR FUSE 12 FUSE 19 FUSE 235 FUSE 237 GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ CIRCUIT HSHZG HIGH SIDE INSTRUMENT CLUSTER KMV SK (+) KOMP PWR 25 26 KOMP RV (-) LEFT BLENDING AIR FLAP ACTUATOR MOTOR LEFT CENTER AIR OUTLET FLAP ACTUATOR MOTOR LEFT DEFROSTER VENT FLAP ACTUATOR MOTOR LEFT FOOTWELL FLAP ACTUATOR MOTOR MAGNETIC CLUTCH NCA WIRE PNK/WHT WIRE PTC HEATER BOOSTER REAR BLEND AIR FLAP ACTUATOR MOTOR W/ CUT OFF FUNCTION RED WIRE RED/BLK WIRE RED/WHT WIRE REFRIGERANT COMPRESSOR (EXCEPT 4.7L TURBO) (LOWER LEFT FRONT OF ENGINE) REFRIGERANT PRESSURE SENSOR REGULATION VALVE REGULATOR RIGHT BLENDING AIR FLAP ACTUATOR MOTOR SIG SIG (9, 10 PINS NOT USED) 11 SIG RE VDF VIO WIRE VIO/BLK WIRE VIO/WHT WIRE W/ AIR BALANCE PACKAGE WHT WIRE WIPER PARK HEATER WIPER PARK POSITION HEATER RELAY YEL WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE

17 18 TEMP V SIG 6 7 SIG (+) AIR RECIRCULATION MODE BUTTON AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BATTERY COMPARTMENT PREFUSE BOX BLK WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BOOSTER BLOWER ELECTRONIC BLOWER CONTROLLER BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COCKPIT CIRCUIT 30 FUSE BOX COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DRIVER SIDE AIR VENT IONIZER FRESH AIR/ AIR RECIRCULATION FLAP ACTUATOR MOTOR FUSE 12 FUSE 13 FUSE 19 FUSE 257 FUSE 32 FUSE 40 GND 20 21 GND 6 7 VENT V GRN/BLU WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ HSHZG HIGH SIDE INTERIOR PREFUSE BOX KMV SK (+) KOMP PWM KOMP RV (-) CBR BG LIN DATA NCA WIRE ORG/ WIRE PNK/WHT WIRE REAR AIR CONDITIONING ELECTRONIC BLOWER CONTROLLER REAR BLOWER MOTOR RED WIRE RED/BLK WIRE RED/WHT WIRE RELAY ENERGIZED SIG SIG LI 12 13 SIG RE TEMP KR SIG VDF VIO WIRE VIO/BLK WIRE VIO/WHT WIRE W/ AIR BALANCE PACKAGE WAHZG WAKE-UP WHT WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

2.1L TURBO DIESEL 3.0L TURBO, 3.5L, 3.5L FLEX AIR QUALITY SENSOR BLU WIRE BLU/GRN WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE GAUGE COOLANT TEMPERATURE WARNING LAMP GRN/BLU WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/YEL WIRE INSTRUMENT CLUSTER INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT "B" PILLAR AIR DISTRIBUTION ACTUATOR MOTOR LEFT CENTER AIR OUTLET FLAP ACTUATOR MOTOR LEFT REAR FOOTWELL MAGNETIC CLUTCH NCA WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PNK/WHT WIRE PTC HEATER BOOSTER (IF EQUIPPED) REAR AIR CONDITIONING EVAPORATOR SHUTOFF VALVE REAR AIR CONDITIONING EVAPORATOR TEMPERATURE SENSOR REAR AIR CONDITIONING HEAD AREA TEMPERATURE SENSOR REAR AIR DISTRIBUTION FLAP ACTUATOR MOTOR RED WIRE RED/WHT WIRE REGULATION VALVE RIGHT "B" PILLAR AIR DISTRIBUTION ACTUATOR MOTOR RIGHT CENTER AIR OUTLET FLAP ACTUATOR MOTOR SUN SENSOR VEHICLE INTERIOR HUMIDITY/ TEMPERATURE SENSOR VIO/BLK WIRE VIO/WHT WIRE WHT WIRE YEL WIRE YEL/BRN WIRE

2.1L TURBO DIESEL 2.1L TURBO DIESEL 3.0L TURBO, 4.7L TURBO 4.7L TURBO 3.5L, 3.5L FLEX 2.1L TURBO DIESEL 3.0L TURBO AC HOUSING, BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLK/YEL WIRE BLOWER MOTOR BLOWER REGULATOR BRN WIRE BRN/GRY WIRE BRN/RED WIRE CHARGE AIR COOLER CIRCULATION PUMP CHARGE AIR TEMPERATURE SENSOR COMPUTER DATA LINES SYSTEM COOLANT LEVEL SWITCH (IN COOLANT RESERVOIR) COOLANT TEMPERATURE SENSOR EA-TANS TSLL SIG ENGINE COMPARTMENT FUSE, RELAY MODULE ENGINE COMPARTMENT PREFUSE BOX ENGINE CONTROLS SYSTEM EXCEPT 2.1L TURBO DIESEL FAN MOTOR (BEHIND RADIATOR) FUSE 215 FUSE 216 FUSE 219 FUSE 235 FUSE 237 FUSE 6 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT W/ CIRCUIT HOT W/ TURBO CHARGER RELAY ENERGIZED LEFT CENTER AIR OUTLET SYMBOL ILLUMINATION LEFT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION LUES NCA WIRE OUTSIDE TEMPERATURE SENSOR PNK/BLK WIRE PNK/BLU (OR PNK/BLK) WIRE PNK/BLU WIRE PNK/WHT WIRE RED WIRE RED/BLU WIRE REFRIGERANT PRESSURE SENSOR RIGHT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION TMOT UHI VIO/WHT WIRE WHT WIRE WIPER PARK HEATER WIPER PARK POSITION HEATER RELAY YEL/RED WIRE YEL/WHT WIRE

BATTERY COMPARTMENT PREFUSE BOX BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE CAM OPEN (+) CAM SW CAME CLS (+) CAN B H CAN B L COMPUTER DATA LINES SYSTEM DOOR LOCKS, TRUNK, TAILGATE, FUEL DOORS SYSTEMS FUSE 152 FUSE 48 FUSE 55 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER SYSTEM INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS, TRUNK, TAILGATE, FUEL DOORS SYSTEMS INTERIOR LIGHTS, TRUNK, TAILGATE, FUEL DOORS SYSTEMS IP 1 IP 2 NAVIGATION SYSTEM ORG/ WIRE OUT POWER WINDOWS SYSTEM REAR CONTROL UNIT REAR FUSE BOX RED/BLK WIRE RED/WHT WIRE SEATS SYSTEM SIG SUPPLEMENTAL RESTRAINTS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/WHT WIRE

15 R 49 L BATTERY COMPARTMENT PREFUSE BOX BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BSL R BUB-L-EL BUB-M CAN B H CAN B L COMPUTER DATA LINES SYSTEM DBL HL DOOR LOCKS, ANTI-THEFT SYSTEMS ENGINE CONTROLS SYSTEM FUSE 250 FUSE 251 FUSE 252 FUSE 5 GRN/BLK WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ CIRCUIT INSTRUMENT CLUSTER SYSTEM INTERIOR PREFUSE BOX KZL R MULTIPLE FUSE 1 ORG/ WIRE POWER DISTRIBUTION SYSTEM RED/BLK WIRE RED/WHT WIRE REL-BUB REL-EK RFL R SAM CONTROL UNIT SEATS SYSTEM SIG SL L STARTING/CHARGING SYSTEM TS(+) TS-2 WHT WIRE WHT/BLU WIRE WIPER/WASHER SYSTEM YEL/BLK WIRE

15-RMR 49 R 57 L 57 R 58 D 58 L 58 R A/T AIR CONDITIONING, INSTRUMENT CLUSTER SYSTEMS ANTI-LOCK BRAKES SYSTEM AT-SIG BBV-SIG BFS BLA BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BSL L CAN B H CAN B L COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM D BL HR EDW SIG ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS SYSTEM MEMORY SYSTEMS FRL HL FRL HR FRL V FT-R-E-A FT-R-S-T GRN/BLK WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/WHT WIRE GRY/YEL WIRE HEADLIGHTS SYSTEM HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS HEADLIGHTS, INTERIOR LIGHTS, EXTERIOR LIGHTS SYSTEMS HW CRASH INSTRUMENT CLUSTER SYSTEM INSTRUMENT CLUSTER, ANTI-LOCK BRAKES SYSTEMS KFR BEL KWS(-) KWS-SIG KZL L LDS 1 LDS 2 LDS 3 LEFT ENGINE HOOD CONTACT SWITCH LWR MEMORY SYSTEMS MHS RE NSI L PNK/WHT WIRE POWER DISTRIBUTION SYSTEM REL FF RFL L RIGHT ENGINE HOOD CONTACT SWITCH SAM CONTROL UNIT SRA-P STARTING/CHARGING SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TBBEL L TBBEL R VIO WIRE VIO/BLK WIRE VIO/WHT WIRE WAZ REL WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM EXTERIOR LIGHTS SYSTEM WIPER/WASHER SYSTEM HORNS SYSTEM WP H(+) WP V(+) WSA WWHZG WWS(-) WWS-SIG YEL WIRE YEL/BLK WIRE YEL/RED WIRE

BATTERY COMPARTMENT PREFUSE BOX BBV-SIG BFS BLK WIRE BLU WIRE BRAKE FLUID LEVEL SWITCH BRAKE SYSTEM WARNING LAMP BRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN B H CAN B H RBA CAN B L COCKPIT CIRCUIT 30 FUSE BOX COMPUTER DATA LINES SYSTEM DR (+) DRIVER SEAT BELT BUCKLE RESTRAINT SYSTEM SWITCH ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRIC PARKING BRAKE SWITCH FUSE 12 FUSE 152 FUSE 59 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR LOCK MULTI-FUNCTION DISPLAY NCA WIRE PARKING BRAKE INDICATOR LAMP PRE-LOCKING POSITION MICROSWITCH REAR CONTROL UNIT (UNDER CENTER OF REAR SEATS) REAR FUSE BOX RED/BLK WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT FRONT BRAKE WEAR SENSOR RIGHT REAR BRAKE WEAR SENSOR SAM CONTROL UNIT SEAT BELT WARNING LAMP SIG SIG DF SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SW 1 SW 2 SW 3 SW 4 VIO WIRE W/ HEAD UP DISPLAY W/ POWER CLOSING DOORS, TRUNK LID WHT WIRE YEL WIRE YEL/WHT WIRE

2.1L TURBO DIESEL BLK WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B H IP CAN B L COCKPIT CIRCUIT 30 FUSE BOX COMBUSTION AIR BLOWER COMPUTER DATA LINES SYSTEM DOPUMP EFB ENGINE COMPARTMENT FUSE, RELAY MODULE EXCEPT 2.1L TURBO DIESEL FUEL PREHEATING SYSTEM HEATING ELEMENT FUSE 133 FUSE 15 FUSE 202 GLOW PLUG/ FLAME MONITOR UNIT GRY/BLK WIRE GRY/BLU WIRE HEATER CONTROL UNIT HOT AT ALL TIMES MULTI-FUNCTION ANTENNA NCA WIRE REAR FUSE BOX RED WIRE RED/WHT WIRE SAM CONTROL UNIT (RIGHT KICK PANEL) SHIELD SIG SIG TEL STATIONARY HEATER BUTTON STATIONARY HEATER FUEL PUMP STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER STATIONARY HEATER SWITCHOVER VALVE STATIONARY HEATER UNIT (LEFT REAR OF ENGINE COMPT) TELEPHONE, STATIONARY HEATER ANTENNA CHANGEOVER SWITCH TEMPERATURE SENSOR THERMAL FUSE UPPER CONTROL PANEL CONTROL UNIT USV W/O COMFORT TELEPHONY W/ COMFORT TELEPHONY

BATTERY COMPARTMENT PREFUSE BOX BRN WIRE COCKPIT CIRCUIT 30 FUSE BOX COMPUTER DATA LINES SYSTEM FUSE 12 FUSE 2 HOT AT ALL TIMES HOT W/ INSTRUMENT CLUSTER LEFT FRONT TIRE PRESSURE SENSOR LEFT REAR TIRE PRESSURE SENSOR MULTIPLE FUSE 2 RED WIRE RED/BLK WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT FRONT TIRE PRESSURE SENSOR RIGHT REAR TIRE PRESSURE SENSOR TIRE PRESSURE MONITOR CONTROL UNIT TIRE PRESSURE MONITOR WARNING LAMP W/ HEAD UP DISPLAY WHT WIRE YEL WIRE YEL/WHT WIRE