Audi A4 B8 (2007-2012) engine controls system Wiring diagrams

ACCESS/START AUTHORIZATION BUTTON (W/ START/STOP BUTTON) BLK WIRE BLK/VIO WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BRN WIRE COMFORT SYSTEM CONTROL MODULE (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM DRIVER'S SIDE FUSE PANEL (BEHIND LEFT END OF DASH) ENGINE 1 2 3 4 5 6 7 8 9 CONTROLS SYSTEM ENGINE CONTROLS SYSTEM FUSE 1 FUSE CARRIER 1 FUSE 10 GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ POWER SUPPLY RELAY (TERMINAL 15) ENERGIZED ORG/BLK WIRE ORG/BRN WIRE POWER DISTRIBUTION SYSTEM PRNDS RED WIRE RED/BRN WIRE SELECTOR LEVER SENSOR SYSTEM CONTROL MODULE (ON SHIFTER UNIT) TRANSMISSION CONTROL MODULE (TCM) (IN MECHATRONIC UNIT) TRANSMISSION PARK SELECTOR SWITCH, SHIFT LOCK SOLENOID VEHICLE ELECTRICAL SYSTEM CONTROL MODULE (UNDER LEFT SIDE OF DASH) VIO WIRE YEL WIRE

2.0L ACCESS/START AUTHORIZATION BUTTON (W/ START/STOP BUTTON) BLK WIRE BLK/VIO WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BRN WIRE COMFORT SYSTEM CONTROL MODULE (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM ENGINE CONTROLS SYSTEM DRIVER'S SIDE FUSE PANEL (BEHIND LEFT END OF DASH) ENGINE CONTROLS SYSTEM FUSE FUSE CARRIER 1 FUSE 10 GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE GRY/YEL WIRE HOT W/ POWER SUPPLY RELAY (TERMINAL 15) ENERGIZED ORG/BLK WIRE ORG/BRN WIRE POWER DISTRIBUTION SYSTEM PRNDS RED WIRE RED/BRN WIRE SELECTOR LEVER SENSOR SYSTEM CONTROL MODULE (ON SHIFTER UNIT) TRANSMISSION CONTROL MODULE (TCM) (IN MECHATRONIC UNIT) TRANSMISSION PARK SELECTOR SWITCH, SHIFT LOCK SOLENOID VEHICLE ELECTRICAL SYSTEM CONTROL MODULE (UNDER LEFT SIDE OF DASH) VIO WIRE YEL WIRE

ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM DEFOGGER SYSTEM ANTI-THEFT SYSTEM, TRUNK, TAILGATE, FUEL DOORS SYSTEMS ANTI-THEFT, TRUNK, TAILGATE, FUEL DOORS, DOOR LOCKS SYSTEMS BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMFORT SYSTEM CONTROL MODULE (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM, ANTI-THEFT SYSTEMS ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS SYSTEM POWER DISTRIBUTION SYSTEM ANTI-THEFT SYSTEM EXTERIOR LIGHTS SYSTEM POWER TOPS, ANTI-THEFT SYSTEMS FUSE 10 FUSE 11 FUSE 8 FUSE CARRIER 2 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES LUGGAGE COMPARTMENT RELAY/FUSE CARRIER (RIGHT SIDE OF LUGGAGE COMPT) NCA WIRE ORG/BRN WIRE ORG/GRN WIRE POWER WINDOWS SYSTEM RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SHIFT INTERLOCK SYSTEM SHIFT INTERLOCK SYSTEM POWER DISTRIBUTION SYSTEM TRANSMISSIONS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS, DEFOGGER SYSTEMS TRUNK, TAILGATE, FUEL DOORS, INTERIOR LIGHTS SYSTEMS EXTERIOR LIGHTS SYSTEM VIO/BLU WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE

2.0L 3.0L BATTERY BATTERY INTERRUPT IGNITER BATTERY JUMP BATTERY MONITORING CONTROL MODULE (MIDDLE OF LUGGAGE COMPT, ON BATTERY) BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLU/GRY WIRE BLU/WHT WIRE BRN WIRE CHARGING CIRCUIT CLUTCH POSITION SENSOR COMFORT SYSTEM CENTRAL CONTROL MODULE (RIGHT SIDE COMPUTER DATA LINES SYSTEM DRIVER'S SIDE FUSE PANEL E-BOX RELAY/ FUSE CARRIER (IN PLENUM CHAMBER ELECTRONICS BOX) ENGINE CONTROL MODULE (ECM) (2.0L: LEFT SIDE OF ENGINE COMPT PLENUM CHAMBER) ENGINE CONTROLS SYSTEM FUSE FUSE 1 FUSE 10 FUSE 16 FUSE CARRIER FUSE CARRIER 1 FUSE CARRIER 2 FUSE PANEL GRN/GRY WIRE GRN/VIO WIRE GRY/BLK WIRE GRY/WHT WIRE HOT W/ MOTRONIC ENGINE CONTROL MODULE (ECM) POWER SUPPLY RELAY ENERGIZED HOT W/ POWER SUPPLY RELAY (TERMINAL 15) ENERGIZED M/T NCA WIRE OF TRUNK) ORG/BLK WIRE ORG/BRN WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY RELAY (TERMINAL 15) (ON VEHICLE ELECTRICAL SYSTEM CONTROL MODULE PRNDS RED WIRE RED/BLK WIRE RED/BRN WIRE RELAY/FUSE CARRIER SELECTOR LEVER SENSOR SYSTEM CONTROL MODULE (ON SHIFTER UNIT) SHIFT INTERLOCK SYSTEM SOCKETS RELAY (LUGGAGE COMPT RELAY/FUSE CARRIER) STARTER STARTER RELAY (ON E-BOX RELAY/FUSE CARRIER) STARTER RELAY 2 (ON E-BOX RELAY/FUSE CARRIER) SUPPLEMENTAL RESTRAINTS SYSTEM TERMINAL (MIDDLE OF ENGINE COMPT PLENUM CHAMBER) TRANSMISSION CONTROL MODULE (TCM) DIRECT SHIFT GEARBOX (DSG) MECHATRONIC VEHICLE ELECTRICAL SYSTEM CONTROL MODULE (UNDER LEFT SIDE OF DASH) VIO/GRY WIRE W/ 6 SPEED A/T W/ CVT W/ DIRECT SHIFT GEARBOX W/O DIRECT SHIFT GEARBOX

AIR BAG CONTROL MODULE (BELOW CENTER CONSOLE) AIR BAG SPIRAL SPRING/ RETURN SPRING (W/ SLIP RING) BLK WIRE BLU/GRN WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH DRIVER'S AIR BAG IGNITER DRIVER'S SIGNAL HORN AIR BAG ACTIVATION IGNITER 2 ENGINE CONTROLS SYSTEM FUNCTION BUTTONS FUSE 12 FUSE 5 FUSE CARRIER 1 FUSE CARRIER 2 HOT AT ALL TIMES HOT W/ POWER SUPPLY RELAY (TERM 15) ENERGIZED LEFT MULTI- MODE MULTI-FUNCTION STEERING WHEEL CONTROL MODULE NCA WIRE ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE PASSENGER'S SIDE FUSE PANEL (BEHIND RIGHT END OF DASH) RED WIRE RED/WHT WIRE RIGHT MULTI-FUNCTION BUTTONS STEERING ANGLE SENSOR (BEHIND STEERING WHEEL CONTROL MODULE STEERING WHEEL VIBRATION MOTOR STEERING WHEEL) TIPTRONIC DOWNSHIFT BUTTON TIPTRONIC UPSHIFT BUTTON (IF EQUIPPED) TURN SIGNAL SWITCH W/ DIRECTIONAL STABILIZATION ASSISTANCE W/ TIPTRONIC WHT WIRE WINDSHIELD WIPER/ WASHER SWITCH YEL WIRE

AIR CONDITIONING SYSTEM INTERIOR LIGHTS SYSTEM AIR CONDITIONING SYSTEM AIR CONDITIONING, SEATS SYSTEMS ANTI-THEFT SYSTEM BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DRIVER'S SIDE FUSE PANEL (BEHIND LEFT END OF DASH) ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM INSTRUMENT CLUSTER SYSTEM ENGINE CONTROLS SYSTEM WIPER/WASHER SYSTEM HORNS SYSTEM EXTERIOR LIGHTS SYSTEM POWER WINDOWS SYSTEM FUSE FUSE 10 FUSE 5 FUSE 6 FUSE 8 FUSE CARRIER 1 FUSE CARRIER 2 FUSE CARRIER 3 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM INTERIOR LIGHTS SYSTEM HOT AT ALL TIMES HOT W/ POWER SUPPLY RELAY (TERMINAL 15) ENERGIZED LEFT REAR SEAT HEAD RESTRAINT ADJUSTMENT BUTTON (ENGINE START/STOP SYSTEM) ORG/BRN WIRE ORG/GRN WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SEATS SYSTEM SHIFT INTERLOCK SYSTEM EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM TRANSMISSIONS SYSTEM TRANSMISSIONS SYSTEM SEATS SYSTEM VEHICLE ELECTRICAL SYSTEM CONTROL MODULE VEHICLE ELECTRICAL SYSTEM CONTROL MODULE (UNDER LEFT SIDE OF DASH) VIO WIRE VIO/BLK WIRE VIO/WHT WIRE WARNING SYSTEMS AIR CONDITIONING SYSTEM WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/VIO WIRE WIPER/WASHER SYSTEM YEL WIRE YEL/BLK WIRE YEL/BLU WIRE