Audi·A3·2012 Audi A3·Wiring
Wiring diagram

2012 Audi A3 — power distribution

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Power distribution

2 1 2 1 A M X R Q - + + I 5A P 30A U S 125A 80A W T 5A 10A 15A 40A 5A 10A 5A 5A 5A 5A 5A 10A STARTER MAIN FUSE PANEL D VEHICLE ELECTRICAL SYSTEM CONTROL MODULE AIRBAG CONTROL MODULE FUSE PANEL C 18-PIN CONNECTOR LEFT HEADLAMP POWER OUTPUT STAGE RIGHT HEADLAMP POWER OUTPUT STAGE ELECTRONIC DAMPING CONTROL MODULE AIR BAG CONTROL MODULE FRONT PASSENGER'S AIR BAG DISABLED INDICATOR LAMP ALL- WHEEL DRIVE CONTROL MODULE VEHICLE ELECTRICAL SYSTEM CONTROL MODULE REAR WINDOW WIPER MOTOR RIGHT HEADLAMP ASSEMBLY LEFT HEADLAMP ASSEMBLY DATA LINK CONNECTOR MASS AIR FLOW (MAF) SENSOR HEADLIGHT RANGE/ CORNERING LAMP CONTROL MODULE ABS CONTROL MODULE ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) SELECTOR LEVER SENSOR SYSTEM CONTROL MODULE DATA BUS ON BOARD DIAGNOSTIC INTERFACE DIRECT SHIFT GEARBOX (DSG) MECHATRONIC ASR/ ESP BUTTON FUEL PUMP (FP) CONTROL MODULE POWER STEERING CONTROL MODULE LIGHT SWITCH LEFT REAR HEATED SEAT CONTROL MODULE HIGH PRESSURE SENSOR CLIMATRONIC CONTROL MODULE BACKUP LAMP SWITCH DRIVER'S SEAT HEATER CONTROL MODULE GARAGE DOOR OPENER CONTROL HEAD RIGHT REAR HEATED SEAT CONTROL MODULE RIGHT WASHER NOZZLE HEATER GARAGE DOOR OPENER CONTROL MODULE LEFT WASHER NOZZLE HEATER TIRE PRESSURE MONITORING BUTTON AIR QUALITY SENSOR OIL LEVEL THERMAL SENSOR AUTOMATIC DIMMING INTERIOR REARVIEW MIRROR RELAY FRONT PASSENGER'S SEAT HEATER CONTROL MODULE PARALLEL PARKING ASSIS- TANCE CONTROL MODULE SEAT OCCUPIED RECOGNITION CONTROL MODULE AUTOMATIC DIMMING INTERIOR REARVIEW MIRROR T2AA 2 1 75 74 D1 E1 T2AB C1 A1 B1 3 5 6 5 41 1 T8Y 4 T10T T6 4 T10U 4 T5G 1 1 T6 T8B 3 T6Q 1 3 4 2 5 6 1 19 19A 31 40A 41A 4 2 T52B 29 2 8 2 4 6 12 6 1 18 47 8 20 3A 1A 18A 47A 51 T94 74 T52C 34 10 20A 6A 5A 16 4 4 4 2A 4A 40 3 23 4 6 1 1 1 4 T10E T10K 9 T20E 13 3 T3W 14 87 3 8 T94 3 1 4 1 7 T16D T16F 1 1 1 1 10 9 BLK BLK BLK RED/VIO BLK BLK RED/VIO BLK BLK BRN BRN GRY RED BLK RED/VIO RED/ BLK RED BLK VIO BLK/ BLU RED/ BLK/ VIO VIO BLK/ GRY BLK/ BLK/ VIO BLK/ VIO NCA BRN BLK/ BLK/ GRN GRY YEL/ GRY YEL/ (OR BRN) VIO BLK/ VIO BLK/ VIO BLK/ BRN/ RED BRN RED RED VIO BLK/ NCA NCA VIO BLK/ NCA NCA NCA BRN/RED YEL BLK/ NCA GRY BLK/ BRN/ RED BLK/ GRN WHT BLK/ BRN BLK/ BLK YEL BLK/ YEL BLK/ RED/ BLK RED BLK RED WHT BLK/ YEL BLK/ RED BLK/ WHT RED RED BLK/ VIO BLK/ GRN BLK/ GRY BRN BRN BLK/ GRY VIO BLK/ BLK BLK RED BRN/RED YEL BLK/ YEL BLK/ BLK/ VIO BLU BLK/ VIO BLK/ BLK/ YEL YEL BLK/ GRY BLK/ GRY BLK/ GRY BLK/ BLK GRY BLK/ GRY GRY GRY BLK/ BLK/ BLK/ VIO BLK/ VIO BLK/ VIO BLK/ RED BLK/ VIO BLK/ VIO BLK/ BLU BLK/ VIO BLK/ VIO BLK/ VIO BLK/ VIO BLK/ BLK/VIO RED GRN/ VIO BLK/ BATTERY INTERRUPT IGNITER FUSE 2 FUSE 3 FUSE 4 FUSE 1 POWER SUPPLY RELAY (TERMINAL 50) SUPP- RESSOR POWER SUPPLY RELAY 2 (TERMINAL 15) FUSE 40 FUSE 41 FUSE 2 FUSE 4 FUSE 3 FUSE 1 FUSE 19 FUSE 20 FUSE 6 FUSE 5 FUSE 47 FUSE 18 (RIGHT REAR OF LUGGAGE COMPT) (ON RELAY CARRIER) (ON 5-POSTION FUSE/ RELAY CARRIER) (ON LEFT HEADLIGHT LONG MEMBER) (BEHIND LEFT KICK PANEL) (UNDER LEFT SIDE OF DASH) (W/O START/ STOP SYSTEM) CBFA CCTA CBFA (CBFA) (CBFA) W/ START/STOP SYSTEM W/O START/STOP SYSTEM (M/T) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (W/ START/ STOP SYSTEM) G655 G44 FROM FUSE PANEL B (DIAGRAM 4 OF 4) FROM FUSE PANEL A (DIA- GRAM 2 OF 4) TO VEHICLE ELECTRICAL SYSTEM CONTROL MODULE (DIAGRAM 2 OF 4) FROM BATTERY (DIAGRAM 4 OF 4) TO FUSE PANEL C (DIAGRAM 3 OF 4) TO FUSE PANEL A (DIAGRAM 2 OF 4) TO FUSE PANEL B (DIAGRAM 4 OF 4) TO STARTER (DIAGRAM 4 OF 4) TO BATTERY MONTORING CONTROL MODULE (DIAGRAM 4 OF 4) TO VOLTAGE STABILIZER (DIAGRAM 2 OF 4) FROM FUSE PANEL C (DIAGRAM 2 OF 4)
4 3 4 3 1 2 1 2 5 5 5 5 5 5 5 5 5 T Z Y S R P Q 10A C D 15A 50A 40A 30A 5A 30A 40A 30A B 15A 7.5A 5A G 30A 150A 40A 80A E F 30A 50A 80A 80A B+ O 200A FUSE PANEL B DIRECT SHIFT GEARBOX (DSG) MECHATRONIC BRAKE LAMP/ BRAKE PEDAL SWITCH CLUTCH POSITION SENSOR VEHICLE ELECTRICAL SYSTEM CONTROL MODULE ABS CONTROL MODULE FUSE PANEL C EXTERNAL AUDIO SOURCE CONNECTION 18-PIN CONNECTOR INSTRUMENT CLUSTER CONTROL MODULE NAVIGATION SYSTEM OPERATING ELECTRONICS CONTROL MODULE RADIO & RADIO/NAVIGATION DISPLAY UNIT CONTROL MODULE SATELLITE RADIO TELEPHONE TRANSCEIVER VEHICLE ELECTRICAL SYSTEM CONTROL MODULE ALARM HORN FUSE PANEL A GENERATOR POWER STEERING CONTROL MODULE COOLANT FAN CONTROL (FC) MODULE ELECTRONIC DAMPING CONTROL MODULE HIGH HEAT OUTPUT RELAY LOW HEAT OUTPUT RELAY FRONT PASSENGER POWER SEAT SWITCH DRIVER POWER SEAT SWITCH L 11 11A 11 A 12 6 7 1 3 T10U 9 T10T 9 7 T4D B F H G E D C 8 9 T16G 15 T40 2 32 35 40 38 23 31 27 T20E 5 4 11 1 T52A 18 10 24 T52C 42 1 32 1 2 8A 9A 10A 18 15 16 T16G 1 T8U 2 1 2 7 3 1 T52C T4X 1 3 3 T4W 1 2 1 1 32 2 T2A BLK RED/ VIO RED/ NCA BLU WHT RED/ BLK YEL RED/ RED/ GRY YEL RED/ RED/BLU RED/BLU RED/YEL RED/GRY BLK/VIO GRY) (OR RED/ NCA RED/ BLK NCA NCA RED/ WHT RED/ WHT GRY BLK/ YEL) (OR RED/ RED/ BLK/ RED YEL GRN RED/ YEL RED/ VIO RED/ RED RED/ GRN RED/ BLU RED/ YEL RED/ YEL GRY YEL RED/ GRY YEL) (OR RED/ BLK/ RED/ YEL GRN RED/ YEL RED/ YEL RED/ RED/ VIO BLU RED/ GRN RED RED/ WHT RED/ RED/ RED/ WHT WHT RED/ WHT) WHT WHT RED/ RED/ RED/ WHT BLK (OR RED/ RED/ WHT RED RED GRN/ WHT RED/ RED GRN/ GRN/ RED RED/ GRN RED/ WHT RED/ GRN RED/ WHT BLK RED/ BLK RED/ BLK RED/ BLK RED/ RED/ BLK BLK RED RED RED WHT RED/ NCA RED BLK RED/ FUSE 53 FUSE 5 FUSE 3 FUSE 1 FUSE 47 FUSE 4 FUSE 2 FUSE 4 FUSE 3 FUSE 53 FUSE 25 FUSE 1 FUSE 16 FUSE 26 FUSE 29 FUSE 48 VOLTAGE STABILIZER FUSE 11 FUSE 9 FUSE 10 FUSE 8 SAFETY FUSE 1 FUSE 7 FUSE 5 FUSE 1 FUSE 4 FUSE 6 FUSE 3 FUSE 2 (INTEGRATED IN ENGINE COMPT E-BOX) (UNDER LEFT SIDE OF DASH) (ON ELECTRONICS BOX LOW) W/ E-BOX HIGH 6 W/ E-BOX LOW 6 6 6 6 6 6 6 6 M/T A/T W/ START/ STOP SYSTEM W/O START/ STOP SYSTEM W/O START/ STOP SYSTEM W/ START/ STOP SYSTEM (W/ START/STOP SYSTEM) W/ BATTERY IN ENGINE COMPARTMENT W/ BATTERY IN LUGGAGE COMPARTMENT W/O GENERATOR (140A) W/ GENERATOR (140A) (RNS-E) (IF EQUIPPED) (RNS-E) (IF EQUIPPED) (W/ ANTI-THEFT ALARM SYSTEM) FROM FUSE 2 (DIAGRAM 4 OF 4) FROM FUSE PANEL B (DIAGRAM 4 OF 4) FROM FUSE PANEL D (DIAGRAM 1 OF 4) TO FUSE PANEL C (DIAGRAM 3 OF 4) FROM FUSE PANEL C (DIAGRAM 1 OF 4) FROM FUSE PANEL B (DIAGRAM 4 OF 4) FROM FUSE PANEL B (DIAGRAM 4 OF 4) FROM FUSE PANEL C (DIAGRAM 3 OF 4) TO AUTOMATIC DIMMING INTERIOR REARVIEW MIRROR RELAY (DIAGRAM 1 OF 4) FROM FUSE PANEL C (DIAGRAM 3 OF 4) FROM ENGINE COMPONENT POWER SUPPLY RELAY (DIAGRAM 4 OF 4) FROM FUSE PANEL D (DIAGRAM 1 OF 4) TO FUSE PANEL C (DIAGRAM 3 OF 4) TO SUPPRESSOR (DIAGRAM 1 OF 4)
1 2 1 2 1 2 1 1 4 3 U E 20A 5A J G 10A H 10A 10A 10A 10A 5A 10A B 20A 30A 20A H O 20A 30A 40A 15A 30A 20A 30A 20A 30A FUSE PANEL C VEHICLE ELECTRICAL SYSTEM CONTROL MODULE FRONT PASSENGER'S DOOR CONTROL MODULE DRIVER DOOR CONTROL MODULE HEADLAMP WASHER RELAY CLIMATRONIC CONTROL MODULE POWER SUNROOF CONTROL MODULE MODELS LOCATION SYSTEM INTERFACE CONTROL MODULE CLIMAT- RONIC CONTROL MODULE RAIN/LIGHT RECOGNITION SENSOR LIGHT SWITCH DRIVER SEAT HEATER CONTROL MODULE DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH DATA LINK CONNECTOR CELLULAR/ TELEPHONE TRANSCEIVER FRONT PASSENGER'S SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH LEFT REAR DOOR MODULE CONTROL FRONT PASSENGER SEAT HEATER CONTROL MODULE AUXILIARY HEATER RADIO RECEIVER RIGHT REAR DOOR MODULE CONTROL FUSE PANEL C LEFT REAR HEATED SEAT CONTROL MODULE RIGHT REAR HEATED SEAT CONTROL MODULE REAR WINDOW DEFOGGER RELAY SELECTOR LEVER SENSOR SYSTEM CONTROL MODULE FRESH AIR BLOWER CONTROL MODULE VEHICLE ELECTRICAL SYSTEM CONTROL MODULE FUEL PUMP (FP) CONTROL MODULE LEFT REAR DOOR CONTROL MODULE RIGHT REAR DOOR CONTROL MODULE FRONT PASSENGER'S DOOR CONTROL MODULE DRIVER DOOR CONTROL MODULE HEATED OXYGEN SENSOR (HO2S) & OXYGEN SENSOR (O2S) HEATER LEAK DETECTION PUMP (LDP) LEAK DETECTION PUMP (LDP) RADIATOR IDENTIFICATION SENSOR 1 34 34A 1 1 39 9A 3 2 T10A 11 T20 T20A 11 T20M 11 11 T20L 13 T20M T20L 13 T20A 13 13 T20 T8O 3 T10U 8 T8N 3 T10T 8 T10T 3 T10U 3 14 13 16 15 17 36 37 33 26 25 27 24 23 T2BW 2 12 32 14A 13A 12A 12 T16D 18 T20F 18 T20G 12 12 T20O T20N 16A 42 T52B 17A 36A 15A 1 3 4 37A 33A 32A 14 13 T16D 4 22 32 T6B 3 16 4 3 5 5 26A 25A 27A T10K 10 4 2 1 A 2 1 22 43 38 22A 24A 23A 43A 38A 28 28A 4 T20F 20 1 T20G 20 T20O T52B T20N 20 20 3 2 2 3 4 1 1 3 3 3 RED/ BLK BLK RED/ (OR RED/BLK) RED RED/BLK BLK RED/ RED RED NCA RED RED/WHT RED RED/ YEL RED/ WHT GRN RED/ GRN RED/ GRN RED/ GRN RED/ RED/YEL RED/ YEL RED/ YEL WHT RED/ WHT RED/ NCA NCA NCA NCA NCA NCA NCA NCA NCA NCA NCA NCA NCA RED/ BLK RED RED RED RED RED/ VIO YEL RED/ RED/ YEL RED/ YEL BLK YEL RED/ RED/ YEL BLK RED/ GRN/ RED RED/ WHT RED BLK BLK WHT RED/ RED/ RED/ YEL YEL YEL RED/ RED/ RED/ RED/ RED/ YEL WHT RED/ RED/ YEL RED/ YEL YEL RED/ RED/ YEL YEL WHT RED/ BLK RED YEL YEL RED/ RED RED/ RED/ RED/ VIO RED/ GRY VIO RED/ VIO BLU RED/ RED/ RED/ RED/ GRY RED RED RED BLU WHT RED/ GRN BLK RED/ RED/ RED/ BLU GRN RED/ RED/ RED GRN RED/ GRN RED/ BLU BLK GRY/ RED/ BLK RED/ BLU GRY/ WHT/ RED (OR RED/ BRN) BRN RED/ NCA BRN BRN BRN BRN BRN BRN RED/ WHT/ RED BRN BRN RED/ BRN RED/ FUSE 37 FUSE 16 FUSE 17 FUSE 33 FUSE 34 FUSE 36 FUSE 13 FUSE 14 FUSE 12 FUSE 32 FUSE 39 FUSE 15 FUSE 26 FUSE 27 FUSE 23 FUSE 24 FUSE 22 FUSE 43 FUSE 38 FUSE 28 FUSE 25 SOCKET CIGARETTE LIGHTER 12V SOCKET (UNDER LEFT SIDE OF DASH) (UNDER LEFT SIDE OF DASH) (ON RIGHT "C" PILLAR) (BEHIND RIGHT KICK PANEL) (BEHIND RIGHT KICK PANEL) MANUAL SEATS POWER SEATS W/ BATTERY IN ENGINE COMPARTMENT W/ BATTERY IN LUGGAGE COMPARTMENT 3 4 4 3 W/ HEATED SEATS (W/ AUTOMATIC HEAD & TAILLIGHT CONTROL) CBFA CCTA G62 G638 G638 FROM FUSE PANEL C (DIAGRAM 3 OF 4) FROM FUSE PANEL B (DIAGRAM 2 OF 4) FROM FUSE PANEL D (DIAGRAM 1 OF 4) TO SAFETY FUSE 1 (DIAGRAM 2 OF 4) TO ALARM HORN (DIAGRAM 2 OF 4) FROM FUSE PANEL A (DIAGRAM 2 OF 4) TO FUSE PANEL C (DIAGRAM 3 OF 4) FROM FUSE PANEL B (DIAGRAM 4 OF 4) INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM
1 2 2 1 2 1 3 4 3 4 3 4 2 1 1 2 5 5 5 5 5 5 5 5 X M I Z Y W F 30A L A K 25A 5A D 50A 30A 5A 5A 15A 10A K 5A 10A L J 20A 20A C 10A 10A 20A STARTER FUSE PANEL B COOLANT CIRCULATION PUMP RELAY ENGINE CONTROL MODULE (ECM) HORN RELAY DATA BUS ON BOARD DIAGNOSTIC INTERFACE STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE BASS SPEAKERS AMPLIFIER AMPLIFIER FUSE PANEL B SECONDARY AIR INJECTION (AIR) PUMP RELAY OXYGEN SENSOR (O2S) & OXYGEN SENSOR (O2S) HEATER IGNITION COIL 1 W/ POWER OUTPUT STAGE OXYGEN SENSOR (O2S) (AFTER THREE WAY CATALYTIC CONVERTER (TWC)) & OXYGEN SENSOR (O2S) 1(AFTER CATALYTIC CONVERTER) HEATER IGNITION COIL 2 W/ POWER OUTPUT STAGE OXYGEN SENSOR (O2S) 3 (AFTER THREE WAY CATALYTIC CONVERTER (TWC)) & OXYGEN SENSOR (O2S) 3 (AFTER CATALYTIC CONVERTER) HEATER ENGINE CONTROL MODULE (ECM) FUEL PRESSURE REGULATOR VALVE WIPER MOTOR CONTROL MODULE ENGINE COMPONENT POWER SUPPLY RELAY IGNITION COIL 3 W/ POWER OUTPUT STAGE TURBOCHARGER RECIRCULATING VALVE EVAPORATIVE EMISSIONS (EVAP) CANISTER PURGE REGULATOR VALVE 1 CAMSHAFT ADJUSTMENT VALVE 1 INTAKE MANIFOLD RUNNER CONTROL (IMRC) VALVE WASTEGATE BYPASS REGULATOR VALVE SECONDARY AIR INJECTION (AIR) SOLENOID VALVE COOLANT CIRCULATION PUMP RELAY IGNITION COIL 4 W/ POWER OUTPUT STAGE COOLANT FAN CONTROL (FC) MODULE OIL PRESSURE REGULATION VALVE 2 T2CE 2 1 2 T14 8 T14 6 T14 5 1 T4D 12 M L A 4 2 3 1 3 T40 23 17 24 25 18 1 1 19 T20B 1 3 2 6 15 28 22 14 T94 6 69 92 5 3 21 26 3 1 1 1 4 19 8 39 4 3 16 11 8 9 1 1 1 12 32 1 4 28 T94 T40 1 1 1 1 2 1 1 1 2 13 1 1 3 BLK BLK BLK YEL BLK/ BLK/ YEL RED/VIO (OR NCA) RED/VIO NCA VIO/WHT BLK RED/ BLU RED/BLU RED/BLU RED/ BLU BLK BLK RED RED BLU/ VIO RED/ GRN RED BLU RED/ YEL BLK/ BLK BLU/ RED BRN BLK/ BLU/ RED RED/ BLU RED BLK RED/ BLU RED/ BLU YEL RED/ RED/ BRN RED/ WHT BLU YEL RED/ RED/ BRN RED/ BRN BRN BLK/ RED/ RED/ WHT BLK RED/ GRY BLK/ BLK RED/ GRN RED/ GRY BLK/ GRY BLK BLK/ RED/ YEL) GRN GRN RED/ RED/ GRN RED/ (OR RED/ RED/ YEL BLK/ RED WHT/ YEL BLK/ YEL BLK/ YEL BLK/ BRN) (OR RED/ GRN RED/ YEL BLK/ BLU RED/ BLU RED/ RED/ RED/ GRN RED/ GRN RED/ GRN RED/ RED/ BLU NCA NCA BRN BLU BLU BRN BLU/ BLU/ BLU/ RED RED RED BLU/ RED/ BLU RED/ BLU BLU RED/ RED NCA BLU/ RED RED/ RED/ BLK GRN BLK/ YEL YEL BLK/ YEL BLK/ WHT/ WHT/ BATTERY MOTRONIC ENGINE CONTROL MODULE (ECM) POWER SUPPLY RELAY FUSE 24 FUSE 12 FUSE 5 FUSE 17 FUSE 17 FUSE 6 FUSE 52 FUSE 30 FUSE 10 FUSE 22 FUSE 39 FUSE 18 FUSE 15 FUSE 23 FUSE 13 ENGINE COMPONENT POWER SUPPLY RELAY FUSE 31 FUSE 19 FUSE 38 FUSE 24 FUSE 2 FUSE 21 FUSE 14 FUSE 20 (LEFT SIDE OF ENGINE COMPT) (INTEGRATED IN ENGINE COMPT E-BOX) (INTEGRATED IN ENGINE COMPT E-BOX) W/ BATTERY IN ENGINE COMARTMENT W/ BATTERY IN LUGGAGE COMARTMENT W/O START/STOP SYSTEM W/ START/STOP SYSTEM W/ E-BOX HIGH 6 W/ E-BOX LOW (NOT USED) 6 6 6 6 6 6 CBFA CCTA (CBFA) (CCTA) 6 6 6 CBFA CCTA (CCTA) (CBFA) (CBFA) (CBFA) (CBFA) BATTERY MONITORING CONTROL MODULE G12 TO FUSE PANEL D (DIAGRAM 1 OF 4) FROM FUSE PANEL D (DIAGRAM 1 OF 4) FROM FUSE PANEL D (DIAGRAM 1 OF 4) COMPUTER DATA LINES SYSTEM FROM FUSE PANEL D (DIAGRAM 1 OF 4) TO ENGINE COMPONENT POWER SUPPLY RELAY (DIAGRAM 4 OF 4) TO FUSE 14 (DIAGRAM 4 OF 4) TO VOLTAGE STABILIZER (DIAGRAM 2 OF 4) TO POWER SUPPLY RELAY 2 (TERMINAL 15) (DIAGRAM 1 OF 4) TO BRAKE LIGHT/ BRAKE PEDAL SWITCH (DIAGRAM 2 OF 4) TO VOLTAGE STABILIZER (DIAGRAM 2 OF 4) TO LEAK DETECTION PUMP (LDP) (DIAGRAM 3 OF 4) FROM FUSE 15 (DIAGRAM 4 OF 4) FROM FUSE 30 4 OF 4) (DIAGRAM TO FUSE 7 (DIAGRAM 2 OF 4) TO FUSE 3 (DIAGRAM 2 OF 4)