Audi·A3·2009 Audi A3·Wiring
Wiring diagram

2009 Audi A3 — power distribution

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Power distribution

30A 5A 125A 80A C D 30A 15A B A 5A 15A 40A 30A 30A 15A 40A 20A 5A 10A 10A TERMINAL 30 WIRE JUNCTION VEHICLE ELECTRICAL SYSTEM CONTROL MODULE AIR BAG CONTROL MODULE E-BOX HIGH FUSE PANEL B VEHICLE ELECTRICAL SYSTEM CONTROL MODULE CLUTCH POSITION SENSOR DIRECT SHIFT GEARBOX (DSG) MECHATRONIC ABS CONTROL MODULE MOTRONIC ENGINE CONTROL MODULE (ECM) IGNITION COIL 6 IGNITION COIL 3 IGNITION COIL 5 IGNITION COIL 2 IGNITION COIL 4 IGNITION COIL 1 EVAPORATIVE EMISSION CANISTER PURGE REGULATOR VALVE SECONDARY AIR INJECTION (AIR) SOLENOID VALVE 2 LEAK DETECTION PUMP AFTER-RUN COOLANT PUMP SECONDARY AIR INJECTION (AIR) SOLENOID VALVE CAMSHAFT ADJUSTMENT VALVE 1 INTAKE MANIFOLD TUNING (IMT) VALVE CAMSHAFT ADJUSTMENT VALVE 1 (EXHAUST) MOTRONIC ENGINE CONTROL MODULE (ECM) COOLANT FAN CONTROL (FC) MODULE SECONDARY AIR INJECTION (AIR) PUMP RELAY C B A D E T2AA 2 1 T2AB 1 T40 22 T40 6 T26 10 7 T8H 74 75 L/30 1 2 14 20 T40 4 23 T26 18 31 27 35 4 3 15 T121 3 3 3 3 3 3 3 1 T40 21 8 10 T26 11 4 3 2 5 T20E 18 11 T2T 1 T11B 1 T11C 1 T6H 3 1 32 11 T40 23 25 T121 48 1 1 1 1 1 1 1 2 3 BLK BLK BLK BRN BLK BLK VIO RED/ GRY RED RED BLK BLK RED/ BLK BLK RED/ RED/ BLK RED/ BRN BRN GRN RED/ RED/ GRN RED/ GRN RED/ GRN RED/ GRN GRN RED/ RED/ GRN RED/ GRN RED/ GRN YEL RED/ YEL RED/ RED/ BLK BLU RED/ YEL RED/ RED/ BRN RED RED/ GRN GRN RED/ GRY BLK/ RED VIO RED RED RED VIO/ BRN VIO/ BLU/ RED BLU/ RED WHT/ BLU/RED BLU RED/ RED/ RED BLU/ RED BLU/ RED/ BLU BLU/ RED NCA BLU BLU RED/ WHT/ WHT/ RED/ YEL GRN G655 G51 MAIN FUSE PANEL D BATTERY SUPPRESSOR BATTERY INTERRUPT IGNITER FUSE 3 FUSE 2 FUSE 1 FUSE 4 MOTRONIC ENGINE CONTROL MODULE (ECM) POWER SUPPLY RELAY FUSE 28 FUSE 43 FUSE 5 FUSE 47 FUSE 1 FUSE 13 FUSE 48 FUSE 2 FUSE 49 FUSE 39 COOLANT CIRCULATION PUMP RELAY FUSE 38 FUSE 29 FUSE 15 (ON LEFT HEADLIGHT) (RIGHT REAR OF LUGGAGE COMPT) (AT RIGHT SIDE OF LUGGAGE COMPT) (M/T) (IF EQUIPPED) (IF EQUIPPED) TO E-BOX HIGH, A/30 (DIAGRAM 2 OF 4) TO E-BOX HIGH, %%UT40%%U-28 (DIAGRAM 2 OF 4) STARTING/ CHARGING SYSTEM TO FUSE PANEL, C-43 (DIAGRAM 4 OF 4) TO E-BOX HIGH, M/30 (DIAGRAM 2 OF 4)
A F E C 50A 200A 80A 80A 10A 10A 15A 40A 10A 50A 50A 30A G 15A 5A 5A 5A 40A 5A 10A 30A D COOLANT FAN CONTROL (FC) MODULE POWER STEERING CONTROL MODULE E-BOX HIGH FUSE PANEL B MASS AIR FLOW (MAF) SENSOR WIPER MOTOR CONTROL MODULE MOTRONIC ENGINE CONTROL MODULE FUEL PUMP (FP) 2 RELAY OXYGEN SENSOR (O2S) 1 HEATER OXYGEN SENSOR (O2S) 2 HEATER TRANSFER FUEL PUMP VEHICLE ELECTRICAL SYSTEM CONTROL MODULE SECONDARY AIR INJECTION (AIR) PUMP RELAY OXYGEN SENSOR (O2S) 2 HEATER OXYGEN SENSOR (O2S) HEATER CYLINDER 3 FUEL INJECTOR CYLINDER 4 FUEL INJECTOR CYLINDER 6 FUEL INJECTOR CYLINDER 5 FUEL INJECTOR CYLINDER 2 FUEL INJECTOR CYLINDER 1 FUEL INJECTOR FUSE PANEL B STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE VEHICLE ELECTRICAL SYSTEM CONTROL MODULE SATELLITE RADIO TELEPHONE TRANSCEIVER DATA BUS ON BOARD DIAGNOSTIC INTERFACE AMPLIFIER OR AMPLIFIER/ WOOFER STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE MOTRONIC ENGINE CONTROL MODULE (ECM) INSTRUMENT CLUSTER CONTROL MODULE RADIO/NAVIGATION DISPLAY UNIT CONTROL MODULE 2 T2A 1 T4D T26 5 A/30 M/30 1 3 4 2 14 19 40 T26 T40 2 6 12 T26 T40 2 3 1 T26 1 1 1 T121 65 5 2 1 1 T2T 3 4 4 1 1 1 1 1 1 34 T40 30 25 24 17 4 39 28 23 T20B 19 T16G 16 15 T8U 2 1 T32 18 19 T20B 1 2 T20D 1 T121 1 1 T2T 62 NCA RED BLK RED RED WHT RED/ GRY BLK/ BLK BRN BLU GRY RED/ RED/ BLU RED/ RED/ RED/ RED/ BLK/ RED/ RED BRN BLK BLK BRN RED/ BLK/ GRY GRY NCA NCA BLU RED/ RED/ BLU BRN BRN RED/ BLK BLK/ BLK/ RED BLK BRN BRN RED/ RED/ RED/ NCA BLK RED/ NCA RED/ BLK BLK RED/ RED/ BLK BLK RED/ BLK RED/ RED/ WHT WHT RED/ WHT RED/ YEL RED/ RED/ BLU RED/ RED/ RED/ YEL BLK RED/ BLK RED/ RED/ WHT WHT WHT WHT RED/ RED/ RED/ RED/ BLK RED/ WHT WHT YEL BLU RED/ RED/ RED/ YEL RED/ BLK RED/ RED/ BLK WHT WHT FUSE 1 FUSE 3 FUSE 2 FUSE 5 FUEL PUMP (FP) RELAY FUSE PANEL A FUSE 11 FUSE 7 FUSE 12 FUSE 10 FUSE 52 FUSE 51 FUSE 31 FUSE 53 FUSE 18 FUSE 23 FUSE 19 FUSE 20 FUSE 17 FUSE 24 FUSE 49 FUSE 16 W/ WOOFER W/O WOOFER (IF EQUIPPED) FROM MAIN FUSE PANEL D (DIAGRAM 1 OF 4) TO FUSE PANEL, C-2A DIAGRAM (3 OF 4) FROM SUPPRESSOR (DIAGRAM 1 OF 4) TO FUSE PANEL, C-22 (DIAGRAM 4 OF 4) STARTING/ CHARGING SYSTEM TO FUSE PANEL, C-32 (DIAGRAM 4 OF 4) FROM E-BOX HIGH, %%UT40%%U-15 (DIAGRAM 1 OF 4)
SOLID STATE 5A 10A 15A 15A 40A 5A 5A 10A 10A E 5A 5A VEHICLE ELECTRICAL SYSTEM CONTROL MODULE FUSE PANEL C REAR WINDOW WIPER MOTOR LEFT HEADLAMP POWER OUTAGE STAGE RIGHT HEADLAMP POWER OUTAGE STAGE ELECTRONIC DAMPING CONTROL MODULE ALL-WHEEL DRIVE CONTROL MODULE POSITIVE CRANK CASE (PCV) HEATING ELEMENT HEADLAMP RANGE CONTROL MODULE LIGHT SWITCH SELECTOR LEVER SENSOR SYSTEM CONTROL MODULE DIRECT SHIFT GEARBOX (DSG) MECHATRONIC DATA BUS ON BOARD DIAGNOSTIC INTERFACE BRAKE LIGHT SWITCH POWER STEERING CONTROL MODULE ABS CONTROL MODULE MOTRONIC ENGINE CONTROL MODULE DATA LINK CONNECTOR FRONT PASSENGER'S AIR BAG DISABLED INDICATOR LAMP CLIMATRONIC CONTROL MODULE ASR/ESP BUTTON SEAT OCCUPIED RECOGNITION CONTROL MODULE RIGHT WASHER NOZZLE HEATER GARAGE DOOR OPENER CONTROL HEAD PARKING AID CONTROL MODULE HIGH PRESSURE SENSOR BACKUP LIGHT SWITCH AIR QUALITY SENSOR AUTOMATIC DAY/NIGHT INTERIOR MIRROR OIL LEVEL THERMAL SENSOR LEFT WASHER NOZZLE HEATER GARAGE DOOR OPENER CONTROL MODULE AIR BAG CONTROL MODULE 6 8 4 1 3 2 4 2 3 4 2 T8H 1 T2T 11 T11B 2 1 T64 3 2 4 1 1 1 19 20 40 40A 42A 20A 19A 6A 41A 5A 2A 1A 4 T14D 4 4 T14C 16 T47 1 T84 T10K 9 4 13 14 T20D 4 T5 4 T121 21 T20E 4 T10E 23 1 1 4A 3A T16D 7 9 4 4 1 1 1 1 1 1 3 1 T16F 2 4 51 T100A RED BRN GRY YEL/ BLK/ GRN YEL/ YEL/ BRN BLK BLK/ GRY GRY BLU BLK BLK BLK BLK/ GRN BLK BLU BLK/ GRN BLK/ GRY VIO BLK/ BLK/ GRY BLK/ BLK/ BRN GRY BLK/ BLK/ GRY BLK/ GRY VIO BLK/ GRY BLK/ BLK BLK/ YEL BLK/ YEL YEL/ BLK/ BLK/ BLK/ BLK/ BLK/ BLK/ GRY GRY GRY GRY YEL BLK/ BLK/ VIO WHT WHT BLK/ BLK/ BLK/ VIO VIO BLK/ VIO VIO GRN/ BLK/ BLK/ BLK/ BLK/ RED VIO VIO VIO VIO BLK/ BLK/ BLK/ BLK/ BLK/ RED VIO VIO VIO VIO VIO BLK/ BLK/ VIO BLK/ BLK/ BLK/ BLK/ BLK/ GRY GRY RED YEL YEL YEL G44 POWER SUPPLY RELAY 2 (TERMINAL 30) POWER SUPPLY RELAY 2 (TERMINAL 15) LOAD REDUCTION RELAY POWER SUPPLY RELAY (TERMINAL 50) FUSE 19 FUSE 20 FUSE 5 FUSE 42 FUSE 6 FUSE 2 FUSE 40 FUSE 41 FUSE 1 FUSE 3 FUSE 4 (ON 5-POSITION FUSE/RELAY CARRIER) (BEHIND LEFT KICK PANEL) (W/O HILLHOLD) (IF EQUIPPED) (M/T) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) STARTING/ CHARGING SYSTEM FROM E-BOX HIGH, %%UT26%%U-5 (DIAGRAM 2 OF 4)
10A 20A 10A B 30A 20A 20A 30A G 10A 10A 10A 5A 20A 10A F 15A 40A 20A 30A 30A 30A 30A FUSE PANEL C DRIVER'S DOOR CONTROL MODULE FRONT PASSENGER'S DOOR CONTROL MODULE DRIVER'S SEAT ADJUSTMENT SWITCH COMFORT SYSTEM CENTRAL CONTROL MODULE DRIVER'S SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH POWER SUNROOF CONTROL MODULE FRONT PASSENGER'S SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH FRONT PASSENGER'S SEAT ADJUSTMENT SWITCH HEADLAMP WASHER RELAY CLIMATRONIC CONTROL MODULE VEHICLE ELECTRICAL SYSTEM CONTROL MODULE FRESH AIR BLOWER CONTROL MODULE VEHICLE ELECTRICAL SYSTEM CONTROL MODULE FRONT PASSENGER'S DOOR CONTROL MODULE LEFT REAR DOOR CONTROL MODULE RIGHT REAR DOOR CONTROL MODULE CLIMATRONIC CONTROL MODULE RAIN/LIGHT RECOGNITION SENSOR DATA LINK CONNECTOR FUEL PUMP (FP) 2 RELAY TIRE PRESSURE MONITORING CONTROL MODULE ALARM HORN DRIVER'S DOOR CONTROL MODULE RIGHT REAR DOOR CONTROL MODULE LEFT REAR DOOR CONTROL MODULE ABS CONTROL MODULE COMFORT SYSTEM CENTRAL CONTROL MODULE SELECTOR LEVER SENSOR SYSTEM CONTROL MODULE 12 43 43A 36A 12A 1 32 2 37A 33A 32A 18 T20F T20G 2 T18 3 T6M 3 T16D T6N 18 14A 16A 17A 15A 26A 13A 14 13 4 T6B 3 T4X 12 32 1 3 T4W 1 22 38 28 25A 22A 27A 23A 24A 38A 28A 1 12 5 T10D T16D 2 16 3 3 1 T20Q 6 4 T20G 20 20 T20N T20O 20 20 T20F 3 1 T10D 17 10 T10K 12 T20O 12 T20N T18 1 3 2 2 3 1 1 RED/ WHT BLK RED/ RED/ RED/ BLK BLK RED RED RED GRN RED/ GRN RED/ RED/ YEL RED/ WHT WHT RED/ YEL YEL BLU WHT YEL YEL WHT RED/ RED/ RED/ RED/ RED/ RED/ BLK BLK BLK BLK YEL YEL RED RED RED RED RED/ RED/ RED/ RED/ RED/ RED/ RED/ RED/ VIO RED/ GRN/ RED RED/ RED GRY BLK RED/ YEL RED/ RED/ RED/ BLK BLK BLK RED/ GRY GRN/ BLK BRN BRN RED/ RED/ RED/ RED/ RED/ RED/ RED RED/ RED/ RED/ RED/ RED/ VIO BLU GRN BLK BLU RED/ RED/ RED/ GRN GRN GRN WHT RED/ RED/ BLU BLK RED/BLK RED/ GRY/BLU GRY/BLU VIO VIO YEL YEL YEL BRN BRN BRN BRN G62 G638 G638 SAFETY FUSE 1 FUSE 12 FUSE 43 FUSE 33 FUSE 36 FUSE 37 FUSE 32 FUSE 17 FUSE 14 FUSE 13 FUSE 16 FUSE 24 FUSE 23 FUSE 26 FUSE 27 FUSE 15 FUSE 28 FUSE 38 FUSE 25 FUSE 22 SOCKET CIGARETTE LIGHTER 12V SOCKET (ON RIGHT "C" PILLAR) (BEHIND RIGHT KICK PANEL) (BEHIND RIGHT KICK PANEL) (W/ HEATED SEATS) FROM E-BOX HIGH, %%UT40%%U-2 (DIAGRAM 2 OF 4) FROM MAIN FUSE PANEL D (DIAGRAM 1 OF 4) FROM E-BOX HIGH, (FUSE PANEL A) (DIAGRAM 2 OF 4) INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM