Mazda MX-5 NC facelift (2008-2015) microcomputer Wiring diagrams

AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT ABS FUSE BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BRAKE IND BRAKE SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) C-03 C-04 C-05 C-08 COMPUTER DATA LINES SYSTEM DSC HU/CM (RIGHT FRONT OF ENGINE COMPT) DSC OFF DSC/TCS WORK IND ENGINE FUSE FRONT WHEEL) GRN/BLK WIRE GRN/WHT WIRE GRY/RED WIRE HOT AT ALL TIMES HOT AT ALL TIMES RELAY, MAIN FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) ROOM FUSE HOT IN ON OR START FUSE BLOCK (BEHIND LEFT END OF DASH) METER FUSE HOT W/ IGNITION RELAY ENERGIZED IND INSTRUMENT CLUSTER J/C 9 LEFT FRONT ABS WHEEL- SPEED SENSOR (AT LEFT FRONT WHEEL) LEFT REAR ABS WHEEL- SPEED SENSOR (AT LEFT REAR WHEEL) MICROCOMPUTER NCA WIRE RED/BLK WIRE RED/BLU WIRE RIGHT FRONT DSC OFF ABS WHEEL- SWITCH SPEED SENSOR (AT RIGHT RIGHT REAR ABS WHEEL- SPEED SENSOR (AT RIGHT REAR WHEEL) STEERING ANGLE SENSOR (IN STEERING COLUMN) STOP FUSE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL/BLK WIRE

ABS FUSE ABS HU/CM (RIGHT FRONT OF ENGINE COMPT) ABS IND. BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/RED WIRE BLU/WHT WIRE BRAKE IND BRAKE SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) C-05 C-08 COMPUTER DATA LINES SYSTEM ENGINE FUSE FUSE BLOCK (BEHIND LEFT END OF DASH) GRN/BLK WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT IN ON OR START HOT W/ IGNITION RELAY ENERGIZED INSTRUMENT CLUSTER J/C 9 LEFT FRONT ABS WHEEL- SPEED SENSOR (AT LEFT FRONT WHEEL) LEFT REAR ABS WHEEL- SPEED SENSOR (AT LEFT REAR WHEEL) METER FUSE MICROCOMPUTER RED/BLK WIRE RELAY, MAIN FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) RIGHT FRONT ABS WHEEL- SPEED SENSOR (AT RIGHT FRONT WHEEL) RIGHT REAR ABS WHEEL- SPEED SENSOR (AT RIGHT REAR WHEEL) ROOM FUSE STOP FUSE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE

0740-108 AIR INTAKE ACTUATOR (TOP LEFT SIDE OF AIR INTAKE BOX) AIR MIX ACTUATOR (TOP CENTER OF AIR INTAKE BOX) AX C-03 AQ BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLOWER MOTOR (BOTTOM RIGHT OF A/C UNIT) BLOWER RELAY (HEATER) (IN RELAY, MAIN FUSE BLOCK) BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE C-03 C-04 CLIMATE CONTROL UNIT DEFOGGER SYSTEM EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE OF A/C UNIT) FIELD EFFECT TRANSISTOR (POWER MOS FET) (ON A/C UNIT BLOWER HOUSING) GRN WIRE GRY/RED WIRE HEATER FUSE HOT AT ALL TIMES HOT IN RUN FUSE BLOCK A/C FUSE (BEHIND LEFT END OF DASH) INSTRUMENT CLUSTER J/C 8 MICROCOMPUTER NCA WIRE ORG/ WIRE POWER METAL OXIDE SEMICONDUCTOR RED WIRE RED/BLU WIRE RED/WHT WIRE RELAY, MAIN FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) ROOM FUSE SOUND SYSTEMS VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE

BEAM HEADLIGHT SWITCH SWITCH BEAM IND BLK WIRE BLK/RED WIRE BLK/YEL WIRE BRN WIRE BRN/BLK WIRE C-03 C-04 C-11 DRL CONTROL MODULE (LOWER LEFT END OF DASH) DRL FUSE HEAD HEAD LOW LOW FUSE FUSE FOG FUSE FOG SWITCH FRONT FOG LIGHT RELAY (IN RELAY, MAIN FUSE BLOCK) FRONT FOG LIGHT SWITCH GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY WIRE HEADLIGHT RELAY (HEAD) HI TNS FLASH- TO- PASS OFF LO HEAD HOT AT ALL TIMES HOT IN ON OR START FUSE BLOCK METER FUSE (BEHIND LEFT END OF DASH) INSTRUMENT CLUSTER J/C 2 J/C 9 LEFT FRONT COMBINATION LIGHT LEFT FRONT FOG LIGHT LEFT HEADLIGHT (HIGH) LEFT HEADLIGHT (LOW) LH RH LIGHT SWITCH LT GRN/BLK WIRE MAIN FUSE MICROCOMPUTER NCA WIRE PARKING BRAKE SWITCH (AT BASE OF PARKING BRAKE LEVER) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RELAY, MAIN FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) RIGHT FRONT COMBINATION LIGHT RIGHT FRONT FOG LIGHT RIGHT HEADLIGHT (HIGH) RIGHT HEADLIGHT (LOW) VIO/WHT WIRE WHT/BLK WIRE YEL/RED WIRE

"B" PILLAR) 7 SEGMENT DISPLAY A/T A/T IND (A/T) ABS IND. AIR BAG IND AIR CONDITIONING SYSTEM AN C-08 AS C-11 AW C-11 BEAM BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BRAKE FLUID LEVEL SENSOR BRAKE IND BRN WIRE BRN/RED WIRE BRN/WHT WIRE BUZZER C-03 C-10 CHARGE IND CHECK ENGINE (MIL) IND CRUISE MAIN IND CRUISE SET IND DOOR IND DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM EXTERIOR LIGHTS SYSTEM DRIVE CIRCUIT DSC OFF IND DSC/TCS WORK IND FLAT TIRE IND FUEL GAUGE FUEL LOW IND FUEL PUMP UNIT (UNDER REAR CENTER OF VEHICLE) FUSE BLOCK (BEHIND LEFT END OF DASH) GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN ON OR START IND INSTRUMENT CLUSTER KEY IND KEY IND (GREEN) LCD LEFT DOOR SWITCH (ON LEFT LEFT TURN IND LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION IND METER FUSE MICROCOMPUTER ODOMETER/ TRIPMETER OIL PRESSURE GAUGE OIL PRESSURE SWITCH (LOWER LEFT REAR OF ENGINE) ORG/ WIRE PANEL LIGHT CONTROL PARKING BRAKE SWITCH (AT BASE OF PARKING BRAKE LEVER) PNK WIRE RED WIRE RED/BLU WIRE RELAY, MAIN FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) RIGHT DOOR SWITCH (ON RIGHT "B" PILLAR) RIGHT TURN IND ROOM FUSE SEAT BELTS IND SECURITY IND SELECTOR INDICATOR SOUND SYSTEMS AIR CONDITIONING SYSTEM DOOR LOCKS SYSTEM SPEEDO- METER SUPPLEMENTAL RESTRAINTS SYSTEM TACHO- METER TEMPERATURE GAUGE TPMS IND TRIPMETER SWITCH VIO WIRE WHT/BLU WIRE YEL/BLK WIRE YEL/GRN WIRE

0918-703 5 0140-13 5 0140-35 AE C-08 AQ C-05 AUDIO UNIT ILLUMINATION BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BRN/BLK WIRE C-03 C-05 C-06 C-08 C-11 CLIMATE CONTROL UNIT ILLUMINATION CLOCK SPRING (IN STEERING COLUMN) COMPT) CRUISE CONTROL SWITCH ILLUMINATION AUDIO CONTROL SWITCH ILLUMINATION DOOR LOCKS SYSTEM DSC OFF SWITCH ILLUMINATION (IF EQUIPPED) FUSE BLOCK (BEHIND LEFT END OF DASH) ILLUMI FUSE GRN/WHT WIRE GRY WIRE GRY/RED WIRE HAZARD WARNING SWITCH ILLUMINATION HOT AT ALL TIMES INSTRUMENT CLUSTER ILLUMINATION J/C 9 KEYLESS CONTROL MODULE (BEHIND LEFT END OF DASH) LEFT SEAT WARMER SWITCH ILLUMINATION (IF EQUIPPED) LIGHT SWITCH MAP LIGHT MICROCOMPUTER NCA WIRE OFF DOOR OFF HEAD ORG/ WIRE PANEL LIGHT CONTROL PCM (LEFT FRONT CORNER OF ENGINE COMPT) PNK/BLU WIRE POWER RETRACTABLE HARDTOP INDICATOR LIGHT POWER RETRACTABLE HARDTOP SWITCH PASSENGER AIR BAG DEACTIVATION RED WIRE RED/BLU WIRE RELAY, MAIN FUSE BLOCK (LEFT SIDE OF ENGINE RIGHT DOOR SWITCH (ON RIGHT "B" PILLAR) RIGHT SEAT WARMER SWITCH ILLUMINATION (IF EQUIPPED) ROOM FUSE SAS CONTROL MODULE (UNDER FRONT OF CENTER CONSOLE) SELECTOR ILLUMINATION (A/T) STEERING SWITCH ILLUMINATION TAIL FUSE TNS TNS RELAY (TAIL) (IN RELAY, MAIN FUSE BLOCK) TRUNK COMPARTMENT LIGHT TRUNK COMPARTMENT LIGHT SWITCH (CENTER REAR OF LUGGAGE COMPT) W/ ADVANCED KEYLESS ENTRY, START SYSTEM, KEYLESS ENTRY SYSTEM

0740-108 AIR INTAKE ACTUATOR (TOP LEFT SIDE OF AIR INTAKE BOX) AIR MIX ACTUATOR (TOP CENTER OF AIR INTAKE BOX) AX C-03 AQ BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLOWER MOTOR (BOTTOM RIGHT OF A/C UNIT) BLOWER RELAY (HEATER) (IN RELAY, MAIN FUSE BLOCK) BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE C-03 C-04 CLIMATE CONTROL UNIT DEFOGGER SYSTEM EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE OF A/C UNIT) FIELD EFFECT TRANSISTOR (POWER MOS FET) (ON A/C UNIT BLOWER HOUSING) GRN WIRE GRY/RED WIRE HEATER FUSE HOT AT ALL TIMES HOT IN RUN FUSE BLOCK A/C FUSE (BEHIND LEFT END OF DASH) INSTRUMENT CLUSTER J/C 8 MICROCOMPUTER NCA WIRE POWER METAL OXIDE SEMICONDUCTOR RED/BLU WIRE RED/WHT WIRE RELAY, MAIN FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) ROOM FUSE SOUND SYSTEMS VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/GRN WIRE

0810-104 AIR BAG IND BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE C-03 C-03 AM C-06 C-12 C-13 CLOCK SPRING (IN STEERING COLUMN) DRIVER-SIDE AIR BAG MODULE (IN STEERING WHEEL) DRIVER-SIDE SIDE AIR BAG SENSOR (W/ SIDE AIR BAG) (NEAR BASE OF LEFT "B" PILLAR) GRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE HAZARD WARNING SWITCH ILLUMINATION INFLATOR INFLATOR 1 INFLATOR 2 INSTRUMENT CLUSTER J/C 9 MICROCOMPUTER NCA WIRE ORG/ WIRE PASSENGER AIR BAG DEACTIVATION (PAD) INDICATION ILLUMINATION PNK WIRE RED WIRE RED/GRN WIRE RED/YEL WIRE SEAT BELTS IND SHORT BAR WHT WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

7 SEGMENTS DISPLAY A/T IND BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE C-10 COMPUTER DATA LINES SYSTEM CONTROL SOLENOID CONTROL VALVE BODY GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRY/RED WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER J/C 2 J/C 9 LINE PRESSURE LT GRN/BLK WIRE MICROCOMPUTER NCA WIRE PNK C-10 WIRE PNK WIRE RED WIRE RED/BLU WIRE RELAY, MAIN FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) ROOM FUSE SELECTOR INDICATOR DRIVE CIRCUIT SHIFT SOL A SHIFT SOL B SHIFT SOL C SHIFT SOL D SHIFT SOL E SHIFT SOL F SHIFT SOL G SHIFT SOLENOIDS TCM (BEHIND LEFT END OF DASH) TRANSMISSION FLUID TEMPERATURE SENSOR WHT/BLK WIRE WHT/RED WIRE YEL/GRN WIRE YEL/RED WIRE

BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE C-03 C-04 C-08 CHECK ENG MIL IND COMPUTER DATA LINES SYSTEM DRIVE-BY- WIRE RELAY (ETV) (IN RELAY, MAIN FUSE BLOCK) EGI EGI EGI INJ FUSE FUSE ENGINE FUSE ETV ROOM FUSE FUSE FUEL PUMP FUSE FUSE FUSE BLOCK (BEHIND LEFT END OF DASH) GRN WIRE GRN/BLK WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IGNITION RELAY (IGNITION) IND INSTRUMENT CLUSTER J/C 2 LOW FUEL MAIN RELAY (EGI) MAL- FUNCTION MICROCOMPUTER OIL-PRESSURE METER RED WIRE RED/BLK WIRE RED/GRN WIRE RELAY, MAIN FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) SPEEDOMETER STOP FUSE TACHOMETER WHT/BLK WIRE WHT/BLU WIRE YEL/GRN WIRE