Audi·A3·2019 Audi A3·Wiring
Wiring diagram

2019 Audi A3 — power distribution

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Power distribution

1 2 1 2 3 4 4 3 15A R 125A A P 80A 125A J Q 15A C 30A 25A 40A 40A 7.5A 25A 20A 5A 80A 80A 400A 30 125A FUSE PANEL A STARTER GENERATOR & VOLTAGE REGULATOR POWER STEERING CONTROL MODULE TERMINAL 30 WIRE JUNCTION 2 AIR BAG CONTROL MODULE RADIATOR FAN CONTROL MODULE FUSE PANEL C INFORMATION ELECTRONICS CONTROL MODULE 1 NECK HEATING RELAY DATA BUS ON BOARD DIAGNOSTIC INTERFACE ELECTRONIC DAMPING CONTROL MODULE FRESH AIR BLOWER CONTROL MODULE LEFT FRONT SEAT BELT TENSIONER CONTROL MODULE FRONT INFORMATION DISPLAY CONTROL HEAD RIGHT FRONT SEAT BELT TENSIONER CONTROL MODULE VEHICLE ELECTRICAL SYSTEM CONTROL MODULE 2 52 13A 52A T3O 1 L1 17 18 2 1 T1C 1 C1A A1 B1 D1A E1A F1 A1 B1 T4BS T3P T8AI T8J T2AG 3 L128 14A 3 47 T73A T73C 42A 11A 73 5A 1 B120 1 41A 1 12A 18 10A 4 K2A E1A G1A 2 A1 1B J1A 2 1 RED RED RED BLU/GRN BLU/GRN RED/WHT RED RED BLK RED RED (OR RED) RED BLK GRY RED BLK NCA BLK BLK BLK BLK BLK/YEL RED/YEL (OR BLK/YEL) BLK RED RED BLK/YEL NCA BLK RED RED/YEL (OR BLK/YEL) BLK GRN/RED GRY/YEL RED/VIO RED/GRY VIO/RED RED/BLU RED/YEL RED/WHT BLK RED BLK RED RED RED/YEL BLK NCA NCA VIO/WHT BLK BLK BLK BLK RED RED BATTERY FUSE 1 FUSE 2 FUSE 3 FUSE 4 BATTERY MONITORING CONTROL MODULE MAIN FUSE PANEL IN LUGGAGE COMPARTMENT BATTERY INTERRUPT IGNITER SAFETY FUSE 3 SAFETY FUSE 1 SAFETY FUSE 2 FUSE 12 FUSE 10 FUSE 14 FUSE 13 FUSE 52 FUSE 42 FUSE 41 FUSE 11 FUSE 5 (LEFT SIDE OF ENGINE COMPT) (LEFT REAR OF ENGINE COMPT, ON BULKHEAD) (2.0L TURBO: LEFT REAR OF ENGINE COMPT, ON BULKHEAD) (2.5L TURBO: LUGGAGE COMPT, BEHIND BATTERY) (LUGGAGE COMPT, BEHIND BATTERY) (ON BATTERY NEGATIVE (-) POST) (LEFT SIDE OF LUGGAGE COMPT FLOOR) (LOWER LEFT SIDE OF DASH) 2.0L TURBO 2.5L TURBO 6 5 (2.0L TURBO) (2.0L TURBO) 2.5L TURBO 2.0L TURBO (2.5L TURBO) (2.5L TURBO) W/O START/STOP SYSTEM W/ START/STOP SYSTEM BASIC W/O NAVIGATION & AMPLIFIER, W/ NAVIGATION 2.0L TURBO 2.5L TURBO 2.0L TURBO 2.5L TURBO 5 6 (W/ START/STOP SYSTEM) 2.5L TURBO 2.0L TURBO 6 2.0L TURBO 2.5L TURBO 2.5L TURBO 2.0L TURBO (BASIC, W/O NAVIGATION & AMPLIFIER, W/ NAVIGATION) (W/ MMI) (IF EQUIPPED) (IF EQUIPPED) G12 G12 G701 G701 TO FUSE 5 (DIAGRAM 2 OF 7) TO FUSE PANEL C (DIAGRAM 6 OF 7) COMPUTER DATA LINES SYSTEM TO FUSE PANEL B (DIAGRAM 2 OF 7) FROM FUSE PANEL B (DIAGRAM 5 OF 7) TO FUSE PANEL C (DIAGRAM 6 OF 7) TO FUSE 4 (DIAGRAM 3 OF 7)
15A 40A R Q D 15A 50A 50A 40A 20A (OR 10A) H 15A 30A 30A 30A 7.5A 7.5A 10A 40A FUSE PANEL C DIGITAL SOUND SYSTEM CONTROL MODULE VEHICLE ELECTRICAL SYSTEM CONTROL MODULE ALL-WHEEL DRIVE CONTROL MODULE CONVERTIBLE TOP HYDRAULIC PUMP RELAY CONVERTIBLE TOP HYDRAULIC PUMP RELAY 2 ELECTRONIC STEERING COLUMN LOCK CONTROL MODULE ACCESS/ START AUTHORIZATION CONTROL MODULE REAR VIEW CAMERA SYSTEM CONTROL MODULE INSTRUMENT CLUSTER CONTROL MODULE CONVERTIBLE TOP HYDRAULIC MODULE FUSE PANEL A FUSE PANEL B DUAL-CLUTCH TRANSMISSION MECHATRONIC DUAL-CLUTCH TRANSMISSION MECHATRONIC ABS CONTROL MODULE RADIATOR FAN CONTROL MODULE 21A 11 9 18 T12I 7 30 R1 13 N1 13A T4G 1 P1A 73 L1A 1A 1 30 2A 32 T32D T2FL T38 T8AO T8Y 3 T6C 44A 3 T73C T73A 73 27A 26A 24A 66 1 1 1 43A 18A 17A 1 1 15A 3A 3 RED/YEL RED/YEL RED/YEL RED/YEL RED/YEL RED/YEL RED RED/WHT RED/YEL BLU/GRY GRY/RED GRY/RED RED RED/VIO RED/VIO NCA RED/YEL RED RED/WHT NCA RED/WHT RED/BLU RED/BLK VIO/BLK YEL/BLK BLU/GRY BLU GRY/RED RED/YEL FUSE 26 FUSE 43 FUSE 15 FUSE 3 FUSE 18 FUSE 17 FUSE 44 FUSE 27 FUSE 24 FUSE 5 FUSE 13 FUSE 2 FUSE 1 FUSE 21 FUSE 6 (LOWER LEFT SIDE OF DASH) (LEFT SIDE OF ENGINE COMPT) (LEFT SIDE OF ENGINE COMPT) CONVERTIBLE 1 2 W/ MULTI-FUNCTION DISPLAY W/O MULTI-FUNCTION DISPLAY 1 2 2.5L TURBO 2.0L TURBO (NOT USED) 2.0L TURBO CNTC (NOT USED) (NOT USED) 2.5L TURBO FROM FUSE 25 (DIAGRAM 7 OF 7) FROM FUSE 4 (DIAGRAM 1 OF 7) TO FUSE 15 (DIAGRAM 3 OF 7) FROM MAIN FUSE PANEL IN LUGGAGE COMPARTMENT (DIAGRAM 1 OF 7)
2 1 2 1 E 20A 30A 7.5A 7.5A 15A 10A 40A 20A K 40A 30 85 D 15A 86 87 10A 7.5A 7.5A J FUSE PANEL B HORN RELAY FUSE PANEL C REAR WINDOW DEFOGGER RELAY FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH MASSAGE FUNCTION CONTROL MODULE FRONT PASSENGER SEAT ADJUSTMENT CONTROL MODULE FRONT PASSENGER SEAT ADJUSTMENT CONTROL HEAD MULTI- MEDIA SYSTEM CONTROL HEAD MASSAGE FUNCTION CONTROL MODULE DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH INFORMATION ELECTRONICS CONTROL MODULE 1 SELECTOR LEVER TIRE PRESSURE MONITORING CONTROL MODULE CLIMATRONIC CONTROL MODULE IGNITION SWITCH KEY LOCK SOLENOID FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH T12AH 11 63 1 1A 1 4 T10E 35A 33A 37A 6 2 4 1 T4FK 3 C121 2 2A T6CV 4 T10D T12AH 11 4 T10D 3 4 3 2 T10E 2 3 1 5 34A 24A 24 33 H1 62 101 7A 6A 4A T20B 20 T10K 10 18 T8J 7 RED RED WHT BLU/RED GRN/BLK RED BLU/RED RED RED RED RED RED GRN/BLK BLU/RED BLU/RED BLU/RED BLU/RED BLU/RED BLU/RED BLU/RED BLU/RED BLU/RED RED RED YEL/RED RED RED RED RED/WHT RED/WHT YEL/RED YEL/RED WHT RED/YEL YEL/RED RED/YEL RED/YEL WHT FUSE 15 FUSE 24 FUSE 37 FUSE 33 FUSE 34 FUSE 35 FRONT PASSENGER POWER SEAT ADJUSTMENT CIRCUIT BREAKER 1 FUSE 2 FUSE 4 FUSE 53 FUSE 7 FUSE 6 (LEFT SIDE OF ENGINE COMPT) (LOWER LEFT SIDE OF DASH) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) CONVERTIBLE SEDAN (W/O ADJUSTABLE SEATS) (W/ ADJUSTABLE SEATS) ((W/ MEMORY) W/ MASSAGE SEAT W/O MASSAGE SEAT W/O NAVIGATION & W/ AMPLIFIER W/O HEATED STEERING WHEEL (W/O ADJUSTABLE SEATS) (W/O HEATED STEERING WHEEL) (W/O ADJUSTABLE SEATS) (W/O ADJUSTABLE SEATS) TO FUSE 16 (DIAGRAM 4 OF 7) FROM FUSE 1 (DIAGRAM 2 OF 7) FROM FUSE 14 (DIAGRAM 1 OF 7) TO FUSE 39 (DIAGRAM 4 OF 7)
5A 15A F 30 86 86 B 20A E 30 L 10A K 30A FUSE PANEL B STARTER RELAY 2 STARTER RELAY 1 ENGINE COMPONENT POWER SUPPLY RELAY ENGINE COMPONENT POWER SUPPLY RELAY 2 BOTTOM COUPLING POINT ON LEFT A-PILLAR FUSE PANEL C VEHICLE ELECTRICAL SYSTEM CONTROL MODULE DIAGNOSTIC CONNECTION STEERING COLUMN ELECTRONICS CONTROL MODULE FRONT PASSENGER SIDE REAR WINDOW REGULATOR MOTOR CONTROL MODULE FRONT PASSENGER SIDE REAR WINDOW REGULATOR MOTOR CONTROL MODULE PASSENGER SIDE REAR DOOR CONTROL MODULE FRONT PASSENGER DOOR CONTROL MODULE ELECTRO- MECHANICAL PARKING BRAKE BUTTON VEHICLE INCLINATION SENSOR/ ANTI-THEFT ALARM SYSTEM SENSOR FRONT ROOF MODULE CORNERING LAMP & HEADLAMP RANGE CONTROL MODULE RAIN/LIGHT RECOGNITION SENSOR FRONT INTERIOR LAMP EMERGENCY CALL MODULE & COMMUNICATION UNIT CONTROL MODULE LIGHT SWITCH T16A 1 9A 2 4 5 3 6 54 44 47 17 T73A 16 123 T17H 14 14 T17HX T17A 11 1 1 71 3 1 81 14 T17C 3 113 16A 8A 16 4 1 T6D T26F 1 8 1 2 7 38A 39A T27A 19 T27C 19 19 T20D 2 19 2 T20K RED/BLU RED/BLU RED/BLU RED/BLU BLK/RED YEL/GRN YEL/BLU RED/BLK YEL/BLU BLK/RED YEL/GRN ORG/BRN ORG/GRN RED/YEL VIO/GRN VIO/GRN RED/GRN GRY/VIO GRY/VIO RED/GRN RED/GRN RED/GRN VIO/GRN RED/GRN RED/GRN GRY/VIO GRY/VIO GRY/VIO GRN/RED GRY/VIO GRY/VIO GRY/VIO GRY/VIO GRY/VIO GRY/VIO RED/GRN RED/GRN RED/GRN RED/YEL RED/VIO RED/GRN RED/YEL FUSE 16 IGNITION/STARTER SWITCH FUSE 38 FUSE 39 FUSE 9 FUSE 8 (LEFT SIDE OF ENGINE COMPT) (LOWER LEFT SIDE OF DASH) (2.0L TURBO) (2.5L TURBO) 2.0L TURBO 2.5L TURBO 2.5L TURBO 2.0L TURBO (NOT USED) (IF EQUIPPED) (CONVERTIBLE) (SEDAN) (CONVERTIBLE) (SEDAN) (W/ ANTI-THEFT ALARM SYSTEM) FROM FUSE 15 (DIAGRAM 3 OF 7) TO FUSE 20 (DIAGRAM 5 OF 7) STARTING/ CHARGING SYSTEM FROM FUSE PANEL C (DIAGRAM 7 OF 7) FROM FUSE 53 (DIAGRAM 3 OF 7) TO SOCKETS RELAY (DIAGRAM 5 OF 7) COMPUTER DATA LINES SYSTEM
1 2 1 2 A 30 87 86 85 30 86 87 85 7.5A 86 87 7.5A 30A F 10A M 7.5A 7.5A 20A L FUSE PANEL B MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY RELAY SECONDARY AIR INJECTION PUMP RELAY WIPER MOTOR CONTROL MODULE ALARM HORN DATA BUS ON BOARD DIAGNOSTIC INTERFACE ENGINE/MOTOR CONTROL MODULE ABS CONTROL MODULE FUSE PANEL C CONVERTIBLE TOP OPERATION SWITCH VEHICLE ELECTRICAL SYSTEM CONTROL MODULE NECK HEATING RELAY REFRIGERANT CIRCUIT PRESSURE SENSOR STRUCTURE BORNE SOUND CONTROL MODULE AUTO HOLD BUTTON 3 5 2 1 3 1 5 2 3 1 5 41 16 T17B 86 31 T91 2 4 17A 18A 19A 5 3 20A 91 92 34A 95 111 112 115 1 T17C 8 1A T73A 13 3 3 2 1 10 40 40A 2 2 3 2 3 1 1 1 2 1 BLK/VIO BLK/VIO BLK/YEL RED/GRN (OR RED/YEL) RED/YEL BLK/YEL BLK/VIO BLK/YEL RED/GRN BLK/VIO BLK/YEL BLK/YEL BRN BRN BRN BRN BLK/BRN RED/GRN RED/GRN RED/GRN BLK/BLU RED/GRN BLK/BRN BLK/BLU RED/GRN RED/GRN RED/GRN RED/GRN RED/GRN BLK/YEL BLU/YEL BLU/YEL GRY/WHT GRY/WHT BLU/YEL BLU/YEL BLK/BRN BRN BRN BRN BRN BRN BRN BRN BRN FUSE 17 FUSE 18 FUSE 20 FUSE 19 SOCKETS RELAY TERMINAL 15 POWER SUPPLY RELAY FUSE 40 FUSE 34 SOCKET FUSE 1 12V SOCKET SOCKET CIGARETTE LIGHTER USB CHARGING SOCKET 1 (LEFT SIDE OF ENGINE COMPT) (LOWER LEFT SIDE OF DASH) (BASE OF LEFT KICK PANEL) (BASE OF LEFT KICK PANEL) (SEDAN: LUGGAGE COMPT, NEAR RIGHT TRUNK LID HINGE) (CONVERTIBLE: RIGHT SIDE OF LUGGAGE COMPT) (LEFT FRONT SIDE OF CENTER TUNNEL) (LEFT FRONT SIDE OF CENTER TUNNEL) (LEFT FRONT SIDE OF CENTER TUNNEL) 2.0L TURBO 2.5L TURBO (2.0L TURBO & 2.5L TURBO) W/O START/STOP SYSTEM W/ START/STOP SYSTEM (IF EQUIPPED) (NOT USED) (W/ SMOKING PACKAGE) (CONVERTIBLE) (SEDAN) (CONVERTIBLE) (SEDAN) G639 G639 G51 G50 G687 G687 G687 FROM FUSE 16 (DIAGRAM 4 OF 7) TO BATTERY MONITORING CONTROL MODULE (DIAGRAM 1 OF 7) FROM FUSE 8 (DIAGRAM 4 OF 7) TO FUSE 32 (DIAGRAM 6 OF 7) INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM
1 2 2 1 10A P G 15A 10A 7.5A 7.5A C N 7.5A 7.5A M FUSE PANEL C STEERING COLUMN ELECTRONICS CONTROL MODULE DRIVER SEAT ADJUSTMENT CONTROL HEAD DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH MASSAGE FUNCTION CONTROL MODULE DRIVER SEAT ADJUSTMENT CONTROL MODULE TV TUNER EXTERNAL AUDIO SOURCE CONNECTION & USB CONNECTION BASEPLATE CELLULAR TELEPHONE AMPLIFIER TELEPHONE BASEPLATE USB DISTRIBUTOR CHIP CARD READER CONTROL MODULE FUEL TANK LEAK DETECTION CONTROL MODULE FUSE PANEL C ADAPTIVE CRUISE CONTROL MODULE DRIVER ASSISTANCE SYSTEMS FRONT CAMERA PARALLEL PARKING ASSISTANCE CONTROL MODULE LANE CHANGE ASSISTANCE CONTROL MODULE 2 CENTER INSTRUMENT PANEL SWITCH MODULE AIR BAG CONTROL MODULE PASSENGER OCCUPANT DETECTION SYSTEM CONTROL MODULE LANE CHANGE ASSISTANCE CONTROL MODULE PARKING AID CONTROL MODULE T12AH 11 21 K127 30A 30 J126 21A 20A 45A T10D 1 T4EX T6CN 1 T14AC 2 4 3 4 9 15 T16M T12AA T10Z 4 6 16A A2 1 1 T4Y 1 T4X 1 T6CC 33A 2 T10F T5A 5 T17B 3 18 1 T3AB 61 31 8 6 8 8 32A T26C T26K 14 RED RED RED RED/GRN RED/GRN BLK BLK RED RED RED RED RED RED RED/GRN RED/BLK RED/BLK RED RED RED/BLK BLU/RED RED/GRN RED/BLK RED/BLK RED/BLK RED/BLK RED/BLK BLK BLK BLK BLK/RED BLK/RED BLK/RED BLK RED/BLK BLK BLK BLK/RED BLK/RED BLK/RED BLK/RED BLK/RED RED/YEL FUSE 30 FUSE 20 FUSE 16 FUSE 21 FUSE 45 FUSE 32 FUSE 33 (LOWER LEFT SIDE OF DASH) (LOWER LEFT SIDE OF DASH) (NOT USED) 2.5L TURBO 2.0L TURBO W/O MEMORY W/ MEMORY (W/ HEATED STEERING WHEEL) (W/ ADJUSTABLE SEATS) (W/ ADJUSTABLE SEATS) (W/ NAVIGATION) (IF EQUIPPED) W/ PARALLEL PARKING W/O PARALLEL PARKING (W/ PARALLEL PARKING) (IF EQUIPPED) (W/O PARALLEL PARKING) TO FUSE 19 (DIAGRAM 7 OF 7) FROM FUSE PANEL A (DIAGRAM 1 OF 7) FROM MAIN FUSE PANEL IN LUGGAGE COMPARTMENT (DIAGRAM 1 OF 7) FROM TERMINAL 15 POWER SUPPLY RELAY (DIAGRAM 5 OF 7) TO FUSE 37 (DIAGRAM 7 OF 7)
3 4 4 3 2 1 4 3 2 1 2 1 (OR 10A) (OR 15A) (OR 15A) H 30A 30A 20A 5A G 7.5A N 7.5A 15A B 5A 7.5A 7.5A 7.5A FUSE PANEL C POWER SUNROOF CONTROL MODULE CONVERTIBLE TOP CONTROL MODULE DRIVER SIDE REAR WINDOW REGULATOR MOTOR CONTROL MODULE DRIVER DOOR CONTROL MODULE DRIVER SIDE REAR DOOR CONTROL MODULE DRIVER SIDE REAR WINDOW REGULATOR MOTOR CONTROL MODULE FUSE PANEL C DIAGNOSTIC CONNECTION AUTOMATIC DIMMING INTERIOR REAR VIEW MIRROR CENTER INSTRUMENT PANEL SWITCH MODULE RIGHT HEADLAMP POWER OUTPUT MODULE RIGHT FRONT HEADLAMP LEFT LED HEADLAMP POWER OUTPUT MODULE 1 LEFT FRONT HEADLAMP LEFT HEADLAMP POWER OUTPUT MODULE LEFT FRONT HEADLAMP RIGHT LED HEADLAMP POWER OUTPUT MODULE 1 RIGHT FRONT HEADLAMP CORNERING LAMP & HEADLAMP RANGE CONTROL MODULE HEADLAMP RANGE CONTROL MODULE AIR QUALITY SENSOR & HUMIDITY SENSOR IN FRESH AIR INTAKE DUCT REAR WINDOW WIPER MOTOR 23 T27 19 T27B 19 25A 23A 19 2 T20C 1 10 8 T10AA T6AB 19 2 T20J 19A 28A 2 49A 47A 48A 35A 36A T17B 11 T8A 1 T17B 13 4 8 4 1 15 1 24 1 44 23 37A 12 4 8 24 1 44 RED/BLU (OR RED/BLU) RED/VIO BLK/RED RED/VIO RED/VIO RED/VIO RED/VIO RED/YEL RED/YEL RED RED/BLU BLK/RED BLK/RED BLK/RED BLK VIO/GRN RED/BLU BLU/WHT RED/BLU BLK/VIO RED/BLU BLK/VIO BLK/VIO BLK RED/BLU RED/BLU RED/BLU RED/BLU RED/BLU BLK/GRN BLK/GRN BLK/GRN BLK/GRN FUSE 23 FUSE 25 FUSE 28 FUSE 19 FUSE 36 FUSE 48 FUSE 49 FUSE 35 FUSE 47 FUSE 37 (LOWER LEFT SIDE OF DASH) (LOWER LEFT SIDE OF DASH) (CONVERTIBLE) (SEDAN) W/O HID HEADLIGHTS W/ HID HEADLIGHTS W/ MATRIX BEAM W/O MATRIX BEAM (NOT USED) CONVERTIBLE SEDAN (CONVERTIBLE) (SEDAN) (SEDAN) (NOT USED) FROM FUSE 45 (DIAGRAM 6 OF 7) TO FUSE 24 (DIAGRAM 2 OF 7) FROM FUSE 33 (DIAGRAM 6 OF 7) TO FUSE PANEL B (DIAGRAM 4 OF 7)