Lexus IS III (2013-2016) micro computer Wiring diagrams

1 2 3 PNK WIRE 4 5 6 7 8 9 PNK WIRE BLK WIRE BLU WIRE BLU/RED WIRE BRN WIRE CLG CLGB COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DATA DOME +B DOOR CONTROL RECEIVER (CENTER FRONT OF TRUNK) ECU-IG RH FUSE FUSE GRN WIRE GRN/RED WIRE HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED INPUT CIRCUIT J/C LCD (MULTI) LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT DOOR ELECTRICAL KEY OSCILLATOR (FRONT LEFT DOOR) LEFT MAIN BODY ECU LH-IG 1 RELAY LH-IG FUSE LT GRN WIRE MASTER IND MICRO COMPUTER MPX MPXB ORG/ WIRE OUTSIDE LEFT FRONT DOOR HANDLE ASSEMBLY PARK/ NEUTRAL POSITION SWITCH (TRANSMISSION ASSEMBLY) PNK WIRE POWER SUPPLY CIRCUIT RED WIRE RH-IG 1 RELAY RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT FRONT DOOR ELECTRICAL KEY OSCILLATOR (RIGHT FRONT DOOR) RIGHT MAIN BODY ECU RSSI SEL SENS SGT TRG+ VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 LGND SGND LRDD LRRD IGB BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN WIRE CIRCUIT COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CRUISE IND DISTANCE CONTROL ECU (BEHIND LEFT SIDE OF DASH) DOME +B ENGINE ROOM GRN/RED WIRE GRY WIRE HOT AT ALL TIMES IGB INPUT CIRCUIT J/C JUNCTION JUNCTION CONNECTOR LCD (MULTI) LRDD LRRD LT GRN WIRE MICRO COMPUTER MILLIMETER WAVE RADAR SENSOR (BEHIND CENTER OF FRONT GRILLE) MODE MPX MPX-B FUSE R/B 1 (RIGHT REAR OF ENGINE COMPT) ORG/ WIRE PNK WIRE RED WIRE RED/BLK WIRE RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) GAUGE FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) SGND SPEEDOMETER STEERING SENSOR (UNDER LEFT SIDE OF DASH) SUPPLY POWER VIO WIRE WHT WIRE WHT/BLK WIRE YAW RATE SENSOR (UNDER CENTER CONSOLE) YEL/GRN WIRE

-TW 1 2 3 4 5 6 +B GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MUTE L- L+ R- R+ 1 2 3 4 5 6 7 8 9 10 11 12 ML+ MR+ WFL+ RL+ RR+ ML- MR- WFL- WFR- WFR+ RL- RR- 1 2 3 4 5 6 7 8 9 10 PNK WIRE BLK WIRE BLK/ BLU WIRE BLK/WHT WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DISP ENGINE ROOM R/B 1 (RIGHT REAR FL+ FR+ GRN WIRE GRY WIRE HOT AT ALL TIMES INPUT SUPPLY INSTRUMENT CLUSTER SYSTEM LEFT FRONT SPEAKER ASSEMBLY 1 LEFT FRONT SPEAKER ASSEMBLY 2 LEFT FRONT SPEAKER ASSEMBLY 3 LEFT REAR SPEAKER ASSEMBLY LEFT REAR SPEAKER ASSEMBLY 2 LEFT REAR SPEAKER ASSEMBLY 3 LEFT STEERING PAD SWITCH LT BLU WIRE LT GRN WIRE MICRO COMPUTER MODE MSSL OF ENGINE COMPT) OFF HOCK DISP ON HOOK ORG/ WIRE PNK 6 7 WIRE PNK TMUT WIRE PNK WIRE RAD 1 FUSE RAD 2 FUSE RED GRN/ WIRE RED WIRE RED/BLU WIRE RIGHT REAR SPEAKER ASSEMBLY RIGHT REAR SPEAKER ASSEMBLY 2 RIGHT REAR SPEAKER ASSEMBLY 3 RIGHT STEERING PAD SWITCH SEEK SPIRAL CABLE (UNDER STEERING WHEEL) STEERING PAD SWITCH ASSEMBLY STEREO COMPONENT AMPLIFIER (RIGHT REAR OF TRUNK) STEREO COMPONENT SPEAKER ASSEMBLY TWL- TX- TX+ VIO WIRE VOICE VOL (-) W/ SAFETY CONNECT WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MUTE L- L+ R- R+ 1 2 3 4 5 6 7 8 9 10 FL+ FR+ BLK WIRE BLU WIRE BRN WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B 1 (RIGHT REAR FL+ FR+ GRN WIRE GRY WIRE HOT AT ALL TIMES INPUT CIRCUIT INSTRUMENT CLUSTER SYSTEM LEFT FRONT SPEAKER ASSEMBLY 1 LEFT FRONT SPEAKER ASSEMBLY 2, 3 (FRONT SPEAKER ASSEMBLY 3) LEFT REAR SPEAKER ASSEMBLY LEFT STEERING PAD SWITCH LT BLU WIRE MICRO COMPUTER MODE MSSL OF ENGINE COMPT) OFF HOOK DISP ON HOOK DISP ORG/ WIRE PNK TMUT WIRE PNK WIRE RAD 2 FUSE RED WIRE RED/BLU WIRE RIGHT FRONT SPEAKER ASSEMBLY 1 RIGHT FRONT SPEAKER ASSEMBLY 2, 3 (FRONT SPEAKER ASSEMBLY 3) RIGHT REAR SPEAKER ASSEMBLY RIGHT STEERING PAD SWITCH SEEK SPIRAL CABLE (UNDER STEERING WHEEL) STEERING PAD SWITCH ASSEMBLY STEREO COMPONENT AMPLIFIER (RIGHT SIDE OF TRUNK) TX- TX+ VIO WIRE VOICE VOL (-) W/ SAFETY CONNECT W/O SAFETY CONNECT WFL+ RL+ RR+ PNK PNK WIRE WFL- WFR- WFR+ RL- RR- PNK WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DOME +B EFI EFI 2 FUSE F/PMP RELAY GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT IN ON OR START HOT IN ON OR START RIGHT COWL SIDE J/B (RIGHT END OF DASH) IGN FUSE INPUT CIRCUIT INSTRUMENT CLUSTER SYSTEM LCD (MULTI) LCD (TEMPERATURE) LT BLU WIRE LT GRN WIRE MASTER IND MICRO COMPUTER MIL IND MPX ORG/ WIRE PNK WIRE PNK/BLU WIRE POWER SUPPLY CIRCUIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE SNOW IND SPORT IND STOP LIGHT SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) STOP SW FUSE TRANSMISSION CONTROL ECU (LEFT SIDE OF (LEFT SIDE OF ENGINE COMPT) ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/GRN WIRE