Mazda·Mazda3·2020 Mazda MAZDA3·Wiring
Wiring diagram

2020 Mazda MAZDA3 — power distribution

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Power distribution

1 2 3 4 1 2 3 4 W/O BOSE W/O MEMORY W/ BOSE W/ MEMORY 7.5A 30A 50A 20A 30A 15A 30A F 10A 10A 10A 15A 10A 15A 10A 30A 15A 30A 15A 25A 50A 15A 25A 200A A 200A RELAY & FUSE BLOCK COOLING FAN RELAY 1 COOLING FAN RELAY 2 BCM DSC HU/CM FUSE BLOCK BATTERY POSITION MEMORY CONTROL MODULE/ SEAT WARMER CONTROL UNIT STARTER GENERATOR SEAT WARMER CONTROL UNIT COMMANDER SWITCH AUDIO AMPLIFIER REMOTE TUNER (RT) FUSE BLOCK CLIMATE CONTROL UNIT ELECTRICAL SUPPLY UNIT INSTRUMENT CLUSTER POSITION MEMORY CONTROL MODULE/ SEAT WARMER CONTROL UNIT SEAT WEIGHT SENSOR CONTROL MODULE LUMBAR SUPPORT SWITCH DRIVER-SIDE SEAT PASSENGER'S SIDE DOOR-ELECTRICAL SUPPLY UNIT DRIVER'S SIDE DOOR-ELECTRICAL SUPPLY UNIT DASH-ELECTRICAL SUPPLY UNIT ELECTRICAL SUPPLY UNIT BRAKE SWITCH JOINT BOX 1 YEL YEL TAN YEL BLK BLU BLU BLK GRY BLU GRN NCA GRN WHT GRY GRY GRN GRN WHT GRN GRY YEL YEL NCA NCA NCA NCA NCA NCA GRY GRY RED LT BLU LT BLU BLU LT BLU RED RED WHT BRN GRN GRY BRN LT BLU GRY GRY GRY GRY GRN PNK GRY VIO WHT WHT WHT WHT YEL BRN LT BLU GRN YEL BLU LT GRN BLU BLU YEL LT BLU WHT BLU BLU BLU YEL RED BLU RED WHT BLK BLK FUSE 38 FUSE 43 FUSE 23 FUSE 35 FUSE 28 FUSE 16 FUSE 51 FUSE 14 MAIN FUSE FUSE 13 ALT/ST FUSE MAIN FUSE FUSE 11 FUSE 4 FUSE 10 FUSE 5 FUSE 9 FUSE 19 FUSE 15 FUSE 21 FUSE 20 FUSE 18 FUSE 17 FUSE 22 FUSE 16 (LEFT REAR OF ENGINE COMPT) (ON BATTERY POSITIVE TERMINAL) (LEFT KICK PANEL) (LEFT KICK PANEL) (LEFT SIDE OF DASH) C-13 M 0940-109A 1A 5C 0940-103A 0913-101A 0920-115A 0810-127B C-21 X C-62 3A 2A C-14 B D K AT AS A C-06 Q C-21 B C-61 2A 1L 0913-201A 1J B 0913-301 A C-21 A 0940-201A 1A 0940-101A 1A 0920-201A 1A 0920-107A 1A C-14 D A C-05 D 0940-104D 0940-104E 5P 5Q 5A 4I 4F C-46 1G 1H 0940-106B 2N C-23 1H 0940-105B 2N M K I C-47 C-47 I 1I 2M 1A 2K 1I 2M C-22 1A 2K D D C-06 T A C-05 B B (W/ MEMORY) (W/O MEMORY) (W/ MEMORY) TO FUSE 11 (DIAGRAM 2 OF 5) TO FUSE 27 (DIAGRAM 5 OF 5)
1 2 1 1 2 2 60A 20A 15A 15A 20A 40A 7.5A 40A 40A W/O BLIND SPOT MONITORING (BSM) SYSTEM W/ BLIND SPOT MONITORING (BSM) SYSTEM 15A 20A 15A E 15A 15A 15A 15A D 15A A 30A RELAY & FUSE BLOCK BLOWER RELAY WINDSHIELD WIPER DE-ICER RELAY HORN RELAY REAR WINDOW DEFOGGER RELAY WINDSHIELD WIPER DE-ICER RELAY A/C RELAY BCM LEFT FRONT COMBINATION LIGHT/LEFT HEADLIGHT LEVELING ACTUATOR/ LEFT SWIVEL ACTUATOR RIGHT FRONT COMBINATION LIGHT/RIGHT HEADLIGHT LEVELING ACTUATOR/ RIGHT SWIVEL ACTUATOR AFS CONTROL MODULE/ AUTO LEVELING CONTROL MODULE MAIN RELAY ELECTRIC VARIABLE VALVE TIMING RELAY SUB RELAY FUEL PUMP RELAY J/C C-30 J/C C-28 PCM EPS CONTROL UNIT FRONT RADAR SENSOR RIGHT FRONT SIDE RADAR SENSOR RIGHT BLIND SPOT MONITORING (BSM) CONTROL MODULE LEFT BLIND SPOT MONITORING (BSM) CONTROL MODULE J/C C-58 J/C C-68 J/C C-58 LEFT FRONT SIDE RADAR SENSOR JOINT BOX 3 PARKING SENSOR CONTROL MODULE/ PARKING ASSIST UNIT BLK BLK WHT RED NCA NCA NCA NCA BRN PPL PPL PPL PPL LT BLU YEL WHT VIO WHT GRN WHT PNK WHT WHT YEL BRN BRN LT GRN PPL BRN PPL/LT GRN LT GRN VIO BLU YEL YEL BLU YEL BLU YEL BLU VIO VIO VIO VIO VIO VIO VIO VIO VIO VIO VIO VIO VIO VIO VIO VIO VIO VIO VIO BRN BRN RED RED BRN LT GRN BLU BLK/WHT BLK BLU RED BLK LT GRN LT GRN TAN BRN BRN BRN LT BLU BLK FUSE 31 FUSE 25 FUSE 40 FUSE 24 FUSE 21 FUSE 20 FUSE 2 FUSE 11 FUSE 37 FUSE 29 FUSE 30 FUSE 3 FUSE 4 FUSE 5 FUSE 19 IG1 RELAY 1 FUSE 54 FUSE 7 FUSE 53 ACCESSORY SOCKET (LEFT REAR OF ENGINE COMPT) (LEFT SIDE OF DASH) (LEFT SIDE OF DASH) (LEFT FRONT OF ENGINE COMPT) (LEFT CENTER OF DASH) (RIGHT REAR LUGGAGE COMPT) (RIGHT REAR LUGGAGE COMPT) (RIGHT REAR LUGGAGE COMPT) (RIGHT SIDE OF LUGGAGE COMPT) 0613-102 A 0613-101A 1A D I I 0940-101A 1C I C I C A D E D C-03 L A D C A D D C-10 A H 0140-101B 2F A B C-60 A B C-70 I I M K C-67 C-66 K 0922-501A C-69 C-59 A C-09 G 1Y D E C D E A C-03 B D A B C SEDAN HATCHBACK SEDAN HATCHBACK HATCHBACK SEDAN (W/ PARKING SENSOR SYSTEM) (W/O PARKING SENSOR SYSTEM) G02 G12 FROM FUSE 28 (DIAGRAM 1 OF 5) TO IG1 RELAY 2 (DIAGRAM 3 OF 5) FROM BCM (DIAGRAM 3 OF 5)
7.5A 20A E C B 15A 30A 15A IG1 RLY 15A +B1 LIMPHOME SSB ILL SSB1 SSB AMBER SSB GREEN SSB 2 D ELECTRICAL SUPPLY UNIT J/C C-39 LF CONTROL UNIT INSTRUMENT CLUSTER BCM RELAY & FUSE BLOCK A/C RELAY STARTER RELAY J/C C-28 J/C C-28 DATA LINK CONNECTOR 2 WINDSHIELD WIPER MOTOR BCM J/C C-30 J/C C-39 CLOCKSPRING CLIMATE CONTROL UNIT INDICATOR UNIT WINDSHIELD WIPER & WASHER SWITCH/ REAR WIPER & WASHER SWITCH HEATED STEERING WHEEL CONTROL UNIT PASSENGER COMPARTMENT TEMPERATURE SENSOR AUTO DIMMING REAR VIEW MIRROR WINDSHIELD WIPER MOTOR J/C C-45 STEERING ANGLE SENSOR SUNROOF MOTOR DASH- ELECTRICAL SUPPLY UNIT TCM ACTIVE DRIVING DISPLAY HUMIDITY SENSOR/ AUTO LIGHT SENSOR/ SOLAR RADIATION SENSOR/RAIN SENSOR CLUSTER SWITCH 1 INDICATOR UNIT GRN GRN GRN GRN GRN GRN GRN GRN GRN GRN PPL/GRN GRN PPL/GRN NCA GRN GRN GRN VIO WHT WHT VIO VIO VIO PPL/WHT PPL/WHT PPL/WHT BLK RED RED RED YEL BLK VIO VIO BLU BLK/WHT WHT LT GRN YEL YEL GRN BLK BLK/WHT BLK GRY GRN GRN VIO GRN GRN GRN PNK GRN GRN GRN PPL/WHT PPL/WHT PPL/VIO PPL/WHT GRN GRN GRN GRN YEL GRN GRN BLU PNK PNK GRY PNK PNK LT GRN GRY TAN GRN LT BLU PPL/LT GRN GRY YEL GRN GRY GRY GRN YEL PPL/LT GRN LT GRN LT GRN LT GRN BLK BLK RED LT BLU GRN TAN LT GRN VIO LT GRN BLU LT GRN YEL BLK BLK PUSH BUTTON START AUTO AUTO RETURN RETURN STOP/ START/ STATUS STATUS ENG IND (GREEN) (GREEN) FUSE 42 FUSE 22 FUSE 44 FUSE 28 IG1 RELAY 2 ACC RELAY FUSE 47 FUSE 18 (LEFT SIDE OF DASH) (LEFT SIDE OF DASH) (LEFT REAR OF ENGINE COMPT) (LEFT FRONT OF ENGINE COMPT) (LEFT FRONT OF ENGINE COMPT) (LEFT SIDE OF DASH) (LEFT SIDE OF DASH) (LEFT SIDE OF DASH) (LEFT SIDE OF DASH) (LEFT SIDE OF DASH) 0616-101 4A 0616-102 5A C-15 C C-16 F 0940-103A 0922-302 A A B I A E A B 0922-302 B C C-16 H C-27 D D 0740-109A 1C C-03 K A E 0940-101B 2AE 2V 0940-104D 4H C-01 E C C-16 F C-27 C I C-14 I 1E C-03 G B C-15 B C-04 B A 2R G C-07 0940-101B 0940-101A 1B 3L 2X 3K 3J 3H 0940-101C AF C-13 K D AE AF C-04 S C-14 L K G I E C A B D H F J D E A C D C D E A G13 G02 G02 (AUTOMATIC A/C) (IF EQUIPPED) TO IG1 RELAY 1 (DIAGRAM 2 OF 5) FROM FUSE 40 (DIAGRAM 2 OF 5) TO FUSE 49 (DIAGRAM 4 OF 5) TO FUSE 48 (DIAGRAM 4 OF 5)
C 7.5A B 15A RELAY & FUSE BLOCK SHIFT PANEL (INDICATOR) INSTRUMENT CLUSTER ELECTRICAL SUPPLY UNIT SELECTOR LEVER COMPONENT JOINT BOX 1 J/C C-41 LEFT FRONT COMBINATION LIGHT/ LEFT HEADLIGHT LEVELING ACTUATOR/ LEFT SWIVEL ACTUATOR RIGHT FRONT COMBINATION LIGHT/ RIGHT HEADLIGHT LEVELING ACTUATOR/ RIGHT SWIVEL ACTUATOR BCM J/C C-41 SEAT WARMER CONTROL UNIT POSITION MEMORY CONTROL MODULE/ SEAT WARMER CONTROL UNIT AFS CONTROL MODULE/ AUTO LEVELING CONTROL MODULE SAS CONTROL MODULE DSC HU/CM TELEMATICS COMMUNICATION UNIT BACKUP POWER SUPPLY EPS CONTROL MODULE SEAT WEIGHT SENSOR CONTROL MODULE YEL YEL NCA NCA GRY YEL YEL YEL YEL YEL YEL YEL YEL NCA YEL YEL YEL YEL GRY GRY NCA GRY NCA TAN GRY GRY NCA GRY GRY PPL/GRN PPL/TAN TAN PPL/TAN PPL/GRY GRY PPL/GRY GRY GRY YEL FUSE 48 FUSE 49 (LEFT REAR OF ENGINE COMPT) (LEFT SIDE OF DASH) (LEFT SIDE OF DASH) (LEFT SIDE OF DASH) C 0810-101A 1AP 0613-101B 2F AG C-13 L C-21 Y C-62 3C 0810-127B 2B C 0914-501A 1AE C-04 C A C-21 AA 0518-102 B B D O O C-62 6B 0913-101A 0913-201A 1C 1C 0940-101B 2AF C-04 A AN 0940-104E 5K C-47 V C-46 B C-13 N C-04 D (W/ MEMORY) (W/O MEMORY) (W/O MEMORY) (W/ MEMORY) (IF EQUIPPED) (IF EQUIPPED) FROM IG1 RELAY 2 (DIAGRAM 3 OF 5) FROM IG1 RELAY 2 (DIAGRAM 3 OF 5)
F 10A 10A 15A 15A 25A RELAY & FUSE BLOCK J/C C-42 SUNROOF MOTOR PCM CENTER DISPLAY ELECTRIC PARKING BRAKE SWITCH TELEMATICS COMMUNICATION UNIT BCM CONNECTIVITY MASTER UNIT USB PORT/ SD CARD SLOT HUB J/C C-42 SHIFT PANEL (INDICATOR) SUNROOF SWITCH/ FRONT MAP LIGHT RIGHT FOOT LIGHT (OPTION) AUTO DIMMING REAR VIEW MIRROR REMOTE ENGINE START LEFT FOOT LIGHT (OPTION) ACTIVE DRIVING DISPLAY JOINT BOX 1 POSITION MEMORY CONTROL MODULE/ SEAT WARMER CONTROL UNIT LF CONTROL UNIT RED PPL/RED RED YEL YEL YEL GRN GRY GRY GRY GRY PPL/GRN RED RED RED NCA RED PPL/RED NCA RED YEL RED YEL YEL YEL YEL GRY RED RED RED PPL/GRN YEL YEL VIO LT GRN LT GRN RED RED PPL/RED PPL/RED RED NCA NCA NCA NCA PPL/RED RED RED GRN RED YEL FUSE 27 FUSE 50 FUSE 45 FUSE 46 FUSE 52 (LEFT REAR OF ENGINE COMPT) (LEFT CENTER OF DASH) (LEFT CENTER OF DASH) (LEFT SIDE OF DASH) C-09 B L 0913-301 B 0913-201A 1B C-19 A L B B 0140-101B 2A C-27 A J 0920-104A 1A 0920-101A 1T 0920-102A 1H C-15 A A 0940-101A 1D 0914-501A C-03 N 1AF C-16 C C-03 A J C-21 E C-14 A N C-46 J 0518-102 A A C-18 A B B 0918-701A C-16 A C-03 M 1H (IF EQUIPPED) W/ GARAGE DOOR OPENER (IF EQUIPPED) (IF EQUIPPED) (W/ MEMORY) FROM FUSE 43 (DIAGRAM 1 OF 5)