Audi A4 B8 facelift (2011-2015) computer data lines system Wiring diagrams

ABS CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) AUTO HOLD BUTTON BLK WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/WHT WIRE BRN/YEL WIRE CLUTCH POSITION SENSOR (M/T) COMPUTER DATA LINES SYSTEM ELECTRO- MECHANICAL PARKING BRAKE BUTTON ELECTRO- MECHANICAL PARKING BRAKE CONTROL MODULE (RIGHT SIDE OF TRUNK) FUSE FUSE CARRIER FUSE CARRIER 1 FUSE FUSE FUSE PANEL FUSE PANEL C (BEHIND LEFT END OF DASH) GRN/RED WIRE GRY/BLU WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ POWER SUPPLY RELAY (TERMINAL 15) ENERGIZED LEFT PARKING BRAKE MOTOR ORG/BLU WIRE ORG/BRN WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE RIGHT PARKING BRAKE MOTOR VIO/GRY WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/VIO WIRE

ANTENNA AMPLIFIER ANTENNA AMPLIFIER 3 (SEDAN: LEFT SIDE OF TRUNK) (WAGON: LEFT SIDE OF CARGO AREA) BLK WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM EXTERNAL AUDIO SOURCE CONNECTION FUSE 1 FUSE 3 FUSE CARRIER 2 FUSE PANEL D (BEHIND RIGHT END OF DASH) GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES NCA WIRE ORG/BRN WIRE ORG/VIO WIRE RADIO RADIO/TELEPHONE, NAVIGATION SYSTEM ANTENNA RED/GRN WIRE RED/GRY WIRE SATELLITE ANTENNA TELEPHONE TRANSCEIVER (UNDER FRONT PASSENGER'S SEAT) W/ AUX-IN CONNECTION W/O AUX-IN CONNECTION WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/RED WIRE

5 DOOR BLK WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/YEL WIRE CENTER MID- TREBLE SPEAKER COMPUTER DATA LINES SYSTEM FUSE 4 FUSE CARRIER 3 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES LEFT FRONT MID-BASS SPEAKER LEFT FRONT TREBLE SPEAKER LEFT REAR MID-BASS SPEAKER LEFT REAR TREBLE SPEAKER ORG/BRN WIRE ORG/VIO WIRE PNK WIRE RADIO RED WIRE RED/BLU WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RELAY/FUSE PANEL F (RIGHT SIDE OF LUGGAGE COMPT) RIGHT FRONT MID-BASS SPEAKER RIGHT FRONT TREBLE SPEAKER RIGHT REAR MID- BASS SPEAKER RIGHT REAR TREBLE SPEAKER SUBWOOFER (IF EQUIPPED) VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE

16 7 18-PIN CONNECTOR 5 DOOR ANTENNA AMPLIFIER 3 (SEDAN: LEFT SIDE OF TRUNK) (WAGON: LEFT SIDE OF CARGO AREA) ANTENNA AMPLIFIER 4 (LEFT SIDE OF CARGO AREA) BLK WIRE BLK/WHT WIRE BLU/GRN WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/YEL WIRE CENTRAL LOCKING, ANTI-THEFT ALARM SYSTEM ANTENNA COMFORT SYSTEM CONTROL MODULE (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM GRN/VIO WIRE HOT AT ALL TIMES FUSE CARRIER 3 FUSE 4 HOT AT ALL TIMES FUSE CARRIER 5 FUSE 5 MOST DATA BUS CIRCUIT NCA WIRE RADIO RED WIRE RED/BLU WIRE RED/VIO WIRE RED/YEL WIRE RELAY/FUSE PANEL F (RIGHT SIDE OF LUGGAGE COMPT) RIGHT FRONT MID-BASS SPEAKER RIGHT FRONT TREBLE SPEAKER RIGHT REAR RIGHT REAR TREBLE SPEAKER MID-BASS SPEAKER SEDAN TV TUNER (IF EQUIPPED) (LEFT SIDE OF TRUNK) VIO WIRE WAGON WHT WIRE WHT/GRN WIRE WHT/RED WIRE WHT/YEL WIRE

AUXILIARY HEATER ANTENNA (IF EQUIPPED) AUXILIARY HEATER RADIO RECEIVER (IF EQUIPPED) BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/YEL WIRE CD/DVD CHANGER CENTER MID- TREBLE SPEAKER COMPUTER DATA LINES SYSTEM DIGITAL RADIO ANTENNA ANTENNA AMPLIFIER 2 (IF EQUIPPED) (RIGHT REAR OF ROOF) FUSE 1 FUSE CARRIER 2 FUSE PANEL D (BEHIND RIGHT END OF DASH) GPS ANTENNA (W/ NAVIGATION) GRN/VIO WIRE HOT AT ALL TIMES INFORMATION ELECTRONICS CONTROL MODULE 1 LEFT FRONT MID-BASS SPEAKER LEFT FRONT TREBLE SPEAKER LEFT REAR MID-BASS SPEAKER LEFT REAR TREBLE SPEAKER MOST DATA BUS CIRCUIT NCA WIRE RADIO/TELEPHONE, NAVIGATION SYSTEM ANTENNA (CENTER REAR OF ROOF) RED/BLK WIRE RED/BLU WIRE SATELLITE ANTENNA (IF EQUIPPED) TELEPHONE ANTENNA (IF EQUIPPED) TELEPHONE BASEPLATE (IF EQUIPPED) WHT/YEL WIRE

2.0L 3.0L A/T CVT ACCESS/START AUTHORIZATION BUTTON BLU/GRY WIRE BRAKE LIGHT SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) BRN WIRE CLIMATRONIC CONTROL MODULE COMFORT SYSTEM CENTRAL CONTROL MODULE (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM DIRECT SHIFT GEARBOX (DSG) TRANSMISSION MECHATRONIC FUSE FUSE CARRIER FUSE PANEL C (BEHIND LEFT END OF DASH) GRN/VIO WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT W/ POWER SUPPLY RELAY (TERMINAL 15) ENERGIZED INTERIOR LIGHTING SWITCH ORG/BLK WIRE ORG/BRN WIRE POWER DISTRIBUTION SYSTEM RED/BLK WIRE RED/BRN WIRE SELECTOR LEVER SENSOR SYSTEM CONTROL MODULE (ON SHIFTER UNIT) SHIFT LOCK SOLENOID, TRANSMISSION PARK SELECTOR SWITCH (ON SHIFTER UNIT) TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION CONTROL MODULE (TCM) (IN MECHATRONIC UNIT) VEHICLE ELECTRICAL SYSTEM CONTROL MODULE (UNDER LEFT SIDE OF DASH) W/ DIRECT SHIFT W/0 DIRECT SHIFT

2.0L 2.0L BATTERY MONITORING CONTROL MODULE (ON NEGATIVE TERMINAL OF BATTERY) 2.0L 3.0L 3.0L 2.0L A/T BATTERY BATTERY INTERRUPT IGNITER BATTERY JUMP BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLU/GRY WIRE BLU/WHT WIRE BRN WIRE CHARGING CIRCUIT CLUTCH POSITION SENSOR (M/T) COMFORT SYSTEM CENTRAL CONTROL MODULE (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM CVT DIRECT SHIFT GEARBOX (DSG) MECHATRONIC ENGINE CONTROL MODULE (ECM) (2.0L: LEFT SIDE OF ENGINE COMPT PLENUM CHAMBER) ENGINE CONTROLS SYSTEM FUSE FUSE 10 FUSE 16 FUSE CARRIER 1 FUSE PANEL FUSE PANEL C (BEHIND LEFT END OF DASH) GRN/GRY WIRE GRN/VIO WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT W/ POWER SUPPLY RELAY (TERMINAL 15) ENERGIZED IGNITION/STARTER SWITCH NCA WIRE ORG/BLK WIRE ORG/BRN WIRE POWER DISTRIBUTION SYSTEM PRNDS RED WIRE RED/BLK WIRE RED/BRN WIRE RELAY/ FUSE FUSE CARRIER PANEL B (IN PLENUM CHAMBER ELECTRONICS BOX) SELECTOR LEVER SENSOR SYSTEM CONTROL MODULE (ON SHIFTER UNIT) SHIFT INTERLOCK SYSTEM START/STOP MODE BUTTON STARTER STARTER RELAY (ON RELAY/FUSE PANEL B) STARTER RELAY 2 (ON RELAY/FUSE PANEL B) SUPPLEMENTAL RESTRAINTS SYSTEM TERMINAL (MIDDLE OF ENGINE COMPT PLENUM CHAMBER) TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION PARK (RIGHT SELECTOR SIDE OF SWITCH CENTER TUNNEL) VEHICLE ELECTRICAL SYSTEM CONTROL MODULE (UNDER LEFT SIDE OF DASH) VIO/GRY WIRE W/ DIRECT SHIFT GEARBOX

BLK WIRE BLK/BLU WIRE BRN WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM FUSE FUSE CARRIER FUSE PANEL C (BEHIND LEFT END OF DASH) HOT W/ TERMINAL 15 POWER SUPPLY RELAY ENERGIZED ORG/BLK WIRE ORG/BRN WIRE STRUCTURE BORNE SOUND ACTUATOR STRUCTURE BORNE SOUND CONTROL MODULE

AIR BAG CONTROL MODULE (BELOW CENTER CONSOLE) AIR BAG SPIRAL SPRING/RETURN SPRING W/ SLIP RING BATTERY INTERRUPT IGNITER BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER AIR BAG IGNITER, IGNITER 2 (IN STEERING DRIVER'S FRONT AIR BAG CRASH SENSOR (ON LEFT HEADLAMP HOUSING BRACKET) DRIVER'S SIDE AIR BAG CRASH SENSOR (IN DRIVER'S FRONT DOOR) FRONT PASSENGER'S AIR BAG DISABLED INDICATOR LAMP FRONT PASSENGER'S FRONT AIR BAG CRASH SENSOR (ON RIGHT HEADLAMP HOUSING BRACKET) FRONT PASSENGER'S SIDE AIR BAG CRASH SENSOR (IN PASSENGER'S FRONT DOOR) FUSE CARRIER FUSE 13 FUSE PANEL A (ON BATTERY, IN LUGGAGE COMPT) FUSE PANEL C (BEHIND LEFT END OF DASH) GRN WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ POWER SUPPLY RELAY (TERMINAL 15) ENERGIZED IGNITER IGNITER 2 WHEEL) NCA WIRE ORG/BLK WIRE ORG/BRN WIRE POWER DISTRIBUTION SYSTEM REAR PASSENGER'S SIDE THORAX AIR BAG IGNITER (FRONT PASSENGER'S SIDE) REAR SIDE AIR BAG CRASH SENSOR (DRIVER'S SIDE) (IN LEFT "C" PILLAR) REAR SIDE AIR BAG CRASH SENSOR (FRONT PASSENGER'S SIDE) (IN RIGHT "C" PILLAR) RED WIRE RED/BLK WIRE SOLID STATE VIO WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/GRY WIRE

46-PIN CONNECTOR AIR BAG IND LAMP BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DATA BUS ON BOARD DIAGNOSTIC INTERFACE (BEHIND RIGHT CENTER OF DASH) DRIVER'S THORAX AIR BAG IGNITER FORCE LIMITER FRONT PASSENGER'S THORAX AIR BAG IGNITER FUSE 4 FUSE 5 FUSE CARRIER FUSE PANEL D (BEHIND RIGHT END OF DASH) GRN WIRE GRN/RED WIRE GRY WIRE GRY/BRN WIRE GRY/RED WIRE HOT AT ALL TIMES IGNITER INSTRUMENT CLUSTER INSTRUMENT CLUSTER CONTROL MODULE NCA WIRE ORG/ WIRE ORG/BLU WIRE ORG/BRN WIRE PASSENGER OCCUPANT DETECTION SYSTEM CONTROL MODULE (SPECIAL EQUIPMENT) PASSENGER OCCUPANT DETECTION SYSTEM PRESSURE SENSOR (SPECIAL EQUIPMENT) RED WIRE RED/BLK WIRE SOLID STATE VIO WIRE WHT WIRE YEL WIRE YEL/GRY WIRE