Audi A4 B8 (2007-2012) power distribution 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

2.0L 3.0L ACCESS/START AUTHORIZATION BUTTON (W/ START/ STOP BUTTON) AUTOMATIC TRANSMISSION HYDRAULIC PRESSURE SENSOR 1 AUTOMATIC TRANSMISSION HYDRAULIC PRESSURE SENSOR 2 BLK/VIO WIRE BLU/BLK WIRE BLU/GRY WIRE BRN RED/ WIRE BRN WIRE COMFORT SYSTEM CONTROL MODULE (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM DIRECT SHIFT GEARBOX (DSG) MECHATRONIC DRIVER'S SIDE FUSE PANEL (BEHIND LEFT END OF DASH) ENGINE COMPT) FUSE 1 FUSE CARRIER 1 FUSE 10 GEAR POSITION DISTANCE SENSOR 1 GEAR POSITION DISTANCE SENSOR 2 GEAR POSITION DISTANCE SENSOR 3 GEAR POSITION DISTANCE SENSOR 4 GRN/GRY WIRE 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 NCA WIRE ORG/BLK WIRE ORG/BRN WIRE POWER DISTRIBUTION SYSTEM RED/BRN WIRE SELECTOR LEVER SENSOR SYSTEM CONTROL MODULE (ON SHIFTER UNIT) TEMPERATURE SENSOR (IN CONTROL MODULE) TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION PARK SELECTOR SWITCH, SHIFT LOCK SOLENOID VEHICLE ELECTRICAL SYSTEM CONTROL MODULE (UNDER LEFT SIDE OF DASH)

ABS CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ALL WHEEL DRIVE CLUTCH VALVE ALL WHEEL DRIVE CLUTCH VALVE 2 ALL WHEEL DRIVE CONTROL MODULE (IN SPARE TIRE WELL) ALL WHEEL DRIVE PUMP BLK WIRE BLK/VIO WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM ESP SENSOR UNIT (UNDER DRIVER'S SEAT) ESP SENSOR UNIT 2 (W/ DYNAMIC STEERING, GEARBOX QUATTRO SPORT) FUSE CARRIER 2 FUSE 9 GRN/BLK WIRE GRY WIRE GRY/YEL WIRE HOT AT ALL TIMES LUGGAGE COMPT RELAY/FUSE CARRIER (RIGHT SIDE OF LUGGAGE COMPT) OIL PRESSURE/ TEMPERATURE SENSOR OIL PRESSURE/ TEMPERATURE SENSOR 2 ORG/BLU WIRE ORG/BRN WIRE ORG/WHT WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/BLU WIRE RED/GRY WIRE WHT/RED WIRE WHT/VIO WIRE YEL/BLU WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT 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 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 CONTROL MODULE IN STEERING DRIVER'S AIR BAG IGNITER 2 WHEEL DRIVER'S AIR BAG IGNITER DRIVER'S FRONT AIR- BAG CRASH SENSOR DRIVER'S SIDE AIR- BAG CRASH SENSOR FRONT PASSENGER'S AIR BAG DISABLED INDICATOR LAMP FRONT PASSENGER'S FRONT AIR BAG CRASH SENSOR FRONT PASSENGER'S SIDE AIR BAG CRASH SENSOR FUSE CARRIER FUSE 14 GRN WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ POWER SUPPLY RELAY (TERMINAL 15) ENERGIZED MAIN FUSE PANEL SA NCA WIRE ORG/BLK WIRE ORG/BRN WIRE POWER DISTRIBUTION SYSTEM REAR SIDE AIR BAG CRASH SENSOR (DRIVER'S SIDE) REAR SIDE AIR BAG CRASH SENSOR (FRONT PASSENGER'S SIDE) RED WIRE RED/BLK WIRE RELAY/FUSE CARRIER LUGGAGE COMPARTMENT SF SOLID STATE VIO WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/GRY WIRE

BRN WIRE COMPUTER DATA LINES SYSTEM FUSE CARRIER 2 FUSE 1 HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL MODULE LEFT FRONT TIRE PRESSURE MONITORING SENSOR (IN LEFT FRONT WHEEL ASSEMBLY) LEFT REAR TIRE PRESSURE MONITORING SENSOR (IN LEFT REAR WHEEL ASSEMBLY) LUGGAGE COMPARTMENT RELAY/ FUSE CARRIER (RIGHT SIDE OF LUGGAGE COMPT) ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE POWER DISTRIBUTION SYSTEM RED/VIO WIRE RIGHT FRONT TIRE PRESSURE MONITORING SENSOR (IN RIGHT FRONT WHEEL ASSEMBLY) RIGHT REAR TIRE PRESSURE MONITORING SENSOR (IN RIGHT REAR WHEEL ASSEMBLY) TIRE PRESSURE MONITORING CONTROL MODULE (BEHIND RIGHT SIDE OF DASH)

ASSIST UNLOCK STOP SWITCH/REAR LID CLOSING ASSIST LOCK STOP SWITCH AVANT BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/RED WIRE BRN WIRE COMFORT SYSTEM CONTROL MODULE (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM DRIVER'S DOOR CONTROL MODULE (IN DRIVER'S FRONT DOOR) DRIVER'S SIDE FUSE PANEL (BEHIND LEFT END OF DASH) FUEL TANK LID UNLOCK MOTOR FUSE FUSE 1 FUSE 11 FUSE 10 CARRIER FUSE 8 FUSE CARRIER 2 FUSE 11 FUSE FUSE 1 CARRIER GRN/BLK WIRE GRN/RED WIRE GRN/YEL 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) LUGGAGE COMPT) ORG/BRN WIRE ORG/GRN WIRE POWER DISTRIBUTION SYSTEM REAR LID CLOSING ASSIST MOTOR/REAR LID OPENING REAR LID CONTROL MODULE REAR LID CONTROL MODULE 2 REAR LID LOCK BUTTON REAR LID LOCK CYLINDER UNLOCK BUTTON RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE SEDAN TRUNK LID ALARM SWITCH, REAR LID CENTRAL LOCKING SYSTEM MOTOR WHT WIRE WHT/BLU WIRE YEL/GRN WIRE