Mercedes-Benz GL-class X166 (2012-2016) vio Wiring diagrams

11 12 SIG LI 6 7 SIG (+) AC HOUSING, AIR RECIRCULATION MODE BUTTON AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK WIRE BLK/WHT WIRE BLOWER MOTOR BLOWER REGULATOR 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 (5 TO 7 PINS NOT USED) 8 COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP DEFOGGER SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE EVAPORATOR TEMPERATURE SENSOR FRESH AIR/ AIR RECIRCULATION FLAP ACTUATOR MOTOR FUSE 19 FUSE 235 FUSE 237 GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/YEL WIRE HIGH SIDE HOT AT ALL TIMES 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 LIN DATA NCA WIRE PNK/WHT WIRE PTC HEATER BOOSTER (IF EQUIPPED) REAR BLEND AIR FLAP ACTUATOR MOTOR W/ CUT OFF FUNCTION RED WIRE RED/BLK WIRE REFRIGERANT COMPRESSOR REFRIGERANT PRESSURE SENSOR 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 WHT WIRE WIPER PARK HEATER WIPER PARK POSITION HEATER RELAY YEL WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE

3.0L TURBO DIESEL 3.0L TURBO DIESEL 4.6L TURBO, 3.5L 4.6L TURBO 3.5L AAV ACTIVATED CHARCOAL FILTER SHUTOFF VALVE BATTERY COMPARTMENT PREFUSE BOX BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE CHARGE AIR COOLER CIRCULATION PUMP CHARGE AIR TEMPERATURE SENSOR COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR EA TANS ENGINE COMPARTMENT FUSE, RELAY MODULE ENGINE COMPARTMENT PREFUSE BOX ENGINE CONTROLS SYSTEM FAN MOTOR FAN MOTOR (BEHIND RADIATOR) FUSE 215 FUSE 216 FUSE 219 FUSE 257 FUSE 32 FUSE 53 FUSE 6 GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ CIRCUIT HOT W/ TURBO CHARGER RELAY ENERGIZED INTERIOR PREFUSE BOX INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT CENTER AIR OUTLET SYMBOL ILLUMINATION LEFT FOOTWELL AIR OUTLET TEMPERATURE SENSOR LEFT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION LEFT REAR FOOTWELL LEFT SIDE AIR OUTLET TEMPERATURE SENSOR LUES ME-SFI CONTROL UNIT OUTSIDE TEMPERATURE SENSOR OVERHEAD CONTROL PANEL ELECTRONICS PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/WHT WIRE PWM REAR AIR DISTRIBUTION FLAP ACTUATOR MOTOR REAR AIR DUCT AIR OUTLET TEMPERATURE SENSOR RED WIRE RED/BLK WIRE RED/BLU WIRE RIGHT CENTER AIR OUTLET SYMBOL ILLUMINATION RIGHT FOOTWELL AIR OUTLET TEMPERATURE SENSOR RIGHT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION RIGHT SIDE AIR OUTLET TEMPERATURE SENSOR SAM CONTROL UNIT SUN SENSOR TMOT UHI VEHICLE INTERIOR HUMIDITY/ TEMPERATURE SENSOR VIO WIRE VIO/BLK WIRE WHT WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/WHT 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 COOLANT CIRCULATION PUMP DEFOGGER SYSTEM FRESH AIR/ AIR RECIRCULATION FLAP ACTUATOR MOTOR 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/YEL WIRE HIGH SIDE HOT AT ALL TIMES HOT W/ CIRCUIT INTERIOR PREFUSE BOX KMV SK (+) KOMP PWR 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 SIG SIG LI 12 13 SIG RE TEMP KR SIG VDF VIO WIRE VIO/BLK WIRE VIO/WHT WIRE WAHZG WAKE-UP WHT WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE EVAPORATOR TEMPERATURE SENSOR GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/YEL WIRE LEFT BLENDING AIR FLAP ACTUATOR LEFT DEFROSTER VENT FLAP ACTUATOR MOTOR LEFT FOOTWELL AIR OUTLET TEMPERATURE SENSOR LEFT FOOTWELL FLAP ACTUATOR MOTOR LEFT SIDE AIR OUTLET TEMPERATURE SENSOR PNK/WHT WIRE REAR AIR DUCT AIR OUTLET TEMPERATURE SENSOR REAR BLEND AIR FLAP ACTUATOR MOTOR W/ CUT OFF FUNCTION RED WIRE RIGHT BLENDING AIR FLAP ACTUATOR RIGHT DEFROSTER VENT FLAP ACTUATOR MOTOR RIGHT FOOTWELL AIR OUTLET TEMPERATURE SENSOR RIGHT FOOTWELL FLAP ACTUATOR MOTOR RIGHT SIDE AIR OUTLET TEMPERATURE SENSOR VIO WIRE VIO/BLK WIRE VIO/WHT WIRE WHT WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE

ACTIVE CURVE ILLUMINATION ACTUATOR MOTOR BEHIND STEERING WHEEL) BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLS H BLS L BLS M BLU/WHT WIRE BRN WIRE CAN H H CAN H L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CORNERING ILLUMI- NATION ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX FUSE 1 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES INFRARED LAMP INNER RIGHT REAR LAMP UNIT OUTER TURN SIGNAL LAMP PNK/BLK WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RIGHT BACKUP LAMP RIGHT FRONT EXTERIOR LIGHTS ACTUATION MODULE RIGHT FRONT LAMP UNIT RIGHT INSIDE TAILLIGHT RIGHT REAR FOG LAMP SIDE MARKER LAMP STANDING/ PARKING LAMP STEERING COLUMN MODULE STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) TURN SIGNAL LAMP TURN SIGNAL LAMPS SWITCH VIO WIRE VIO/BLK WIRE VIO/WHT WIRE W/ XENON HEADLAMP W/0 XENON HEADLAMP WHT WIRE WHT/BLU WIRE

AC HOUSING, AIRMATIC CONTROL UNIT AMPLIFIER CONTROL UNIT ATA (EDW)/ TOWING SENSOR/ INTERIOR MOTION SENSOR CONTROL UNIT AUDIO COMAND CONTROL PANEL BASS SPEAKER AMPLIFIER BATTERY COMPARTMENT PREFUSE BOX BATTERY SENSOR BLK WIRE BLU WIRE CONTROL UNIT) DIGITAL TACHOGRAPH CONTROL UNIT ECO START/ STOP FUNCTION DIODE ECO START/STOP FUNCTION DIODE ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT EMERGENCY CALL SYSTEM ENGINE COMPARTMENT PREFUSE BOX FAN MOTOR FUSE 1 FUSE 2 FUSE 250 FUSE 251 FUSE 252 FUSE 253 FUSE 254 FUSE 255 FUSE 256 FUSE 257 FUSE 3 FUSE 30 FUSE 31 FUSE 32 FUSE 33 FUSE 34 FUSE 35 FUSE 36 FUSE 4 FUSE 40 FUSE 45 FUSE 47 FUSE 48 FUSE 49 FUSE 5 FUSE 50 FUSE 51 FUSE 52 FUSE 53 FUSE 54 FUSE 55 FUSE 56 FUSE 57 FUSE 58 FUSE 59 FUSE 6 FUSE 60 FUSE 61 FUSE 62 FUSE 63 FUSE 64 FUSE 65 FUSE 67 FUSE 68 FUSE 7 FUSE 8 FUSE PYRO FUSE GRN WIRE KEYLESS-GO CONTROL UNIT LEFT FRONT DOOR CONTROL UNIT LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR LEFT REAR DOOR CONTROL UNIT LOWER CONTROL PANEL CONTROL UNIT MULTI-CONTOUR SEAT PNEUMATIC PUMP MULTIPLE FUSE 1 N/A OFF-ROAD OPERATING PANEL CONTROL UNIT ON-BOARD ELECTRICAL SYSTEM BATTERY OVERHEAD CONTROL PANEL CONTROL UNIT PANORAMIC SLIDING ROOF CONTROL MODULE PARKING SYSTEM PTC HEATER BOOSTER REAR AIR CONDITIONING ELECTRONIC BLOWER CONTROLLER REAR CONTROL UNIT RED WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR RIGHT REAR DOOR CONTROL UNIT SAM CONTROL UNIT SLIDING ROOF CONTROL MODULE SOUND SYSTEM SUPPLEMENTAL RESTRAINT SYSTEM TO COCKPIT CIRCUIT 30 FUSE BOX (DIAGRAM 2 OF 4) TO ENGINE COMPARTMENT FUSE, RELAY MODULE (DIAGRAM 2 OF 4) TO ENGINE COMPARTMENT FUSE, RELAY MODULE (DIAGRAM 3 OF 4) TO MULTIPLE FUSE 2 (DIAGRAM 3 OF 4) TO REAR FUSE BOX (DIAGRAM 3 OF 4) TO REAR FUSE BOX (DIAGRAM 4 OF 4) TRANSFER CASE CONTROL UNIT VIO WIRE W/ SOUND SYSTEM WHT WIRE

ACCELERATE, SET SWITCH ACCEPT/TERMINATE PHONE CALL BUTTON ALDW - BEHIND STEERING WHEEL) BLK WIRE BLU WIRE BRN WIRE BUTTONS +, - SETTING OF SPECIFIC FUNCTIONS, VOLUME CONTROL CENTER HORNS BUTTON CLOCK SPRING CONTACT COCKPIT CIRCUIT 30 FUSE BOX COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CRUISE CONTROL LEVER DECELERATE, SET SWITCH DIRECT SELECT LEVER DISTRONIC CONTROL (IF EQUIPPED) DRIVER AIR BAG IGNITION SQUIB 1 (IN STEERING WHEEL) DRIVER AIR BAG IGNITION SQUIB 2 FUSE 11 FUSE 20 GRN WIRE GRN/WHT WIRE HEADLAMP FLASHER/ HIGHBEAM SWITCH HEATING ELEMENT TEMPERATURE SENSOR HOT AT ALL TIMES INDICATOR OFF SWITCH SWITCH L OK LEFT FANFARE HORN SYSTEM BUTTON LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP LIFTGATE WINDSHIELD WASHER SYSTEM SWITCH LOW BEAM SWITCH LSP + MUTE BUTTON MUTE SBS NCA WIRE NTC- OK BUTTON PNK/BLU WIRE R RETURN RED WIRE RED/BLK WIRE RED/WHT WIRE RELAY ENERGIZED RESUME FROM MEMORY SWITCH RIGHT FANFARE HORN SYSTEM BUTTON RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SCROLL FORWARD/BACK BUTTON STEERING COLUMN ADJUSTMENT SWITCH STEERING COLUMN ADJUSTMENT, STEERING WHEEL HEATER SWITCH STEERING COLUMN MODULE STEERING WHEEL ANGLE SENSOR STEERING WHEEL DOWNSHIFT BUTTON (IF EQUIPPED) STEERING WHEEL ELECTRONICS STEERING WHEEL HEATER STEERING WHEEL HEATER HEATING ELEMENT STEERING WHEEL HEATER INDICATOR LAMP (IF EQUIPPED) STEERING WHEEL HEATER SWITCH (IF EQUIPPED) STEERING WHEEL UPSHIFT BUTTON (IF EQUIPPED) STEERING WHEEL VIBRATION MOTOR SUPPLEMENTAL RESTRAINTS SYSTEM SYSTEM SELECTION BUTTON "BACK", VOICE CONTROL SYSTEM OFF BUTTON TURN SIGNAL LAMP SWITCH U MFL L TEL ANS/ END CALL UP/DOWN GND U MFL R UP/DOWN VIO WIRE VOICE CONTROL SYSTEM ON BUTTON W/ STEERING WHEEL HEATER AUTOMATIC LANE RECOGNITION, LANE KEEPING ASSIST WINDSHIELD WASHER SYSTEM SWITCH WIPE SWITCH YEL WIRE

15-RMR 30 L 49 R 55 L 57 L 57 R 58 D 58 L 58 R A/T AIR CONDITIONING, COOLING FANS SYSTEMS ANTI-LOCK BRAKES SYSTEM ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM ENGINE CONTROLS SYSTEM AT-SIG BBV-SIG BFS 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 EDW SIG ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM FRL HL FRL HR FRL V FT-R-E-A FT-R-S-T GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HW CRASH INSTRUMENT CLUSTER SYSTEM INTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEMS INTERIOR LIGHTS, EXTERIOR LIGHTS SYSTEMS KFR BEL KWS(-) KWS-SIG KZL L KZL R LDS 1 LDS 2 LDS 3 LWR MEMORY SYSTEMS MHS RE NCA WIRE NSI L ORG/ WIRE PNK/WHT WIRE RED/WHT WIRE REL FF RFL L RIGHT FRONT BRAKE WEAR SENSOR SAM CONTROL UNIT SRA-P SUPPLEMENTAL RESTRAINTS SYSTEM TBBEL L TBBEL R TFL L TFL R VIO WIRE VIO/BLK WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WIPER/WASHER 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 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 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 ROTARY TUMBLER SWITCH 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/ POWER CLOSING DOORS, TRUNK LID WHT WIRE YEL WIRE YEL/WHT WIRE

3.0L TURBO DIESEL 3.5L, 4.6L TURBO 3.5L, 4.6L TURBO 3.0L TURBO DIESEL ALTERNATOR BATTERY SENSOR BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE CAN A H CAN A L CAN B H CAN B L CAN C H CAN C L CDI CONTROL UNIT CHARGING CIRCUIT COMPUTER DATA LINES SYSTEM ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE ENGINE COMPARTMENT PREFUSE BOX FULLY INTEGRATED TRANSMISSION CONTROL UNIT GRN WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INTELLIGENT SERVO MODULE (DIRECT SELECT) INTERIOR PREFUSE BOX ME-SFI (ME) CONTROL UNIT NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY POWER DISTRIBUTION SYSTEM RED WIRE SAM CONTROL UNIT STARTER STARTER CIRCUIT 50 RELAY STR+ VIO WIRE VIO/WHT WIRE