BMW 4 series F32/F33 facelift (2017-2020) horns system Wiring diagrams

BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BONNET CONTACT SWITCH BRN WIRE BRN/BLK WIRE BRN/YEL WIRE CAN L CENTER CONSOLE STORAGE COMPARTMENT CENTRAL LOCKING DRIVE CENTRAL LOCKING DRV ACT COMPUTER DATA LINES SYSTEM CONTACT SIG DR CONTACT SIG DRIVER'S DOOR LOCK EARLY PRODUCTION ELECTRONICS JUNCTION BOX FLASHING IND LAMP ACT FRONT ELECTRONIC MODULE (RIGHT KICK PANEL) FRONT PASSENGER DOOR LOCK FUSE 104 FUSE 5 FUSE 504 FUSE 7 FUSE BOX GRN/BLK WIRE GRN/WHT WIRE GRY/RED WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HI BEAM HEADLIGHT ACT HI RANG ACT HORN HORNS SYSTEM HOT AT ALL TIMES HOTEL POS SW INTERIOR REAR LID BUTTON LATE PRODUCTION LEFT FOOTWELL) LIN BUS SIG LOCATING LAMP MECHANISM SIG NCA WIRE POWER DISTRIBUTION SYSTEM REAR FUSE CARRIER RED WIRE RED/GRN WIRE RED/GRY WIRE REMOTE CONTROL RECEIVER SIG SW SIG TERM 30 SPLY VIO/BLU WIRE VIO/RED WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL/BRN WIRE YEL/GRN WIRE

AERIAL SIG AIR CONDITIONING SYSTEM AMBIENT LIGHT ANTI-THEFT SYSTEM ANTI-THEFT, TRUNK, TAILGATE, FUEL DOORS SYSTEMS ANTI-THEFT, TRUNK, TAILGATE, FUEL DOORS, DOOR LOCKS SYSTEMS AUXILIARY PUMP BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE BUS SIG DIAG CAN L COMPUTER DATA LINES SYSTEM COOLANT LEVEL SENS COURTESY LIGHT CTRL VALVE DATA LINE DOOR LOCKS, ANTI-THEFT SYSTEMS DOOR LOCKS, ANTI-THEFT, TRUNK, TAILGATE, FUEL DOORS SYSTEMS DR CONT SIG DR HANDLE MOD SIG DR HANDLE MOD SIG (PINS: 35 TO 44 NOT USED) ENG START SIG ENGINE CONTROLS SYSTEM FLEX BUS SIG FRONT ELECTRONIC MODULE FRONT ELECTRONIC MODULE (RIGHT KICK PANEL) FUSE 504 FUSE BOX GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HEADLIGHTS SYSTEM HI BEAM LIGHT HI RANGE HORNS SYSTEM HOT AT ALL TIMES INSTRUMENT CLUSTER SYSTEM INTR LIGHT INTR LIGHTS K CAN H K CAN L K-LIN-1 LO BEAM LIGHT LOCATOR LIGHTING M LIN MAG CLUTCH MECHANISM SIG ORG/ WIRE ORG/GRN WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/RED WIRE PNK/WHT WIRE PT CAN H PT CAN L REAR LID BUTTON RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE SENS SIG SPLY STARTING/CHARGING SYSTEM SWITCH SIGNAL TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO/BLU WIRE VIO/GRN WIRE WAKE-UP WASHER PUMP WATER VALVE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WIND WIPER WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/RED WIRE

AERIAL SIG AIR CONDITIONING SYSTEM ANTI-THEFT SYSTEM BISTABLE RELAY BLK WIRE BLK/BRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA LINE DOOR LOCKS, ANTI-THEFT SYSTEMS DOOR LOCKS, ANTI-THEFT, EXTERIOR LIGHTS SYSTEMS DOOR LOCKS, ANTI-THEFT, TRUNK, TAILGATE, FUEL DOORS SYSTEMS EXTERIOR LIGHTS, HEADLIGHTS, INTERIOR LIGHTS SYSTEMS FRONT ELECTRONIC MODULE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/RED WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/RED WIRE HEAD-UP DISPLAY HORNS SYSTEM INSTRUMENT CLUSTER SYSTEM K LIN 11 K LIN 16 K LIN 17 K LIN 8 LED ACT LIGHT SW LIN BUS SIG LOCATOR LIGHT LOCK SIG NAVIGATION SYSTEM ORG/GRN WIRE OUT SIDE TEMP SIG POSITION SW PT CAN H PT CAN L PWR SPLY REAR FUSE CARRIER RED WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SOUND SYSTEMS START SIG START STOP STARTING/CHARGING, ANTI-THEFT SYSTEMS TERM 15 TERM 30 VIO WIRE WHT WIRE WHT/BRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/RED WIRE

BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BONNET CONTACT SWITCH BRN WIRE BRN/BLK WIRE BRN/YEL WIRE CAN L CENTER CONSOLE STORAGE COMPARTMENT CENTRAL LOCKING DRIVE CENTRAL LOCKING DRV ACT COMPUTER DATA LINES SYSTEM CONTACT SIG DR CONTACT SIG DRIVER'S DOOR LOCK EARLY PRODUCTION ELECTRONICS JUNCTION BOX FLASHING IND LAMP ACT FRONT ELECTRONIC MODULE (RIGHT KICK PANEL) FRONT PASSENGER DOOR LOCK FUSE 104 FUSE 5 FUSE 504 FUSE 7 FUSE BOX GRN/BLK WIRE GRN/WHT WIRE GRY/RED WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HI BEAM HEADLIGHT ACT HI RANG ACT HORN HORNS SYSTEM HOT AT ALL TIMES HOTEL POS SW INTERIOR REAR LID BUTTON LATE PRODUCTION LEFT FOOTWELL) LIN BUS SIG LOCATING LAMP MECHANISM SIG NCA WIRE POWER DISTRIBUTION SYSTEM REAR FUSE CARRIER RED WIRE RED/GRN WIRE RED/GRY WIRE REMOTE CONTROL RECEIVER SIG SW SIG TERM 30 SPLY VIO/BLU WIRE VIO/RED WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL/BRN WIRE YEL/GRN WIRE