Lexus IS III (2013-2016) computer data lines system Wiring diagrams

1 2 3 4 5 6 7 8 B+ 13 14 25 CANL CANH RL 15 14 EFII EFIO PNK WIRE 2 30 31 20 STAR IMO IMI STA ACCD BLK WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CTSW SLR+ ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) FUSE GENERATOR ASSEMBLY GRN WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B 2 STR LOCK FUSE (LEFT SIDE OF ENGINE COMPT) ID CODE BOX (BEHIND CENTER OF DASH) IGE SGND GND INDS INDW INSTRUMENT CLUSTER SYSTEM LEFT COWL SIDE J/B (LEFT END OF DASH) LIN LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK ALT WIRE PNK SPD WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RED/BLK WIRE RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT IGN FUSE END OF DASH) RIGHT COWL RIGHT COWL SIDE J/B (RIGHT END OF DASH) SECURITY FUSE SHIFT LOCK CONTROL ECU (UNDER CENTER CONSOLE) SKSW SLP STARTING/ CHARGING SYSTEM STARTING/CHARGING SYSTEM STEERING LOCK ACTUATOR (STEERING COLUMN) STOP LIGHT SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) STOP SIDE J/B SW (RIGHT FUSE END OF DASH) STSW SWIL VIO WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE

+BM 17 12 13 CCHG 21 13 14 15 TC CANL CANH CCS 24 16 SPD LGND 29 20 23 28 21 22 1 VPA EPA VCPA 56 34 PNK WIRE 6 7 PNK WIRE 8 7 SFTU SFTD BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) EFI FUSE EFI MAIN RELAY ENGINE ROOM ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) ETCS FUSE R/B 2 (LEFT SIDE OF ENGINE COMPT) GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT W/ LH-IG 1 RELAY ENERGIZED IGN FUSE JUNCTION JUNCTION CONNECTOR LEFT COWL SIDE J/B LH-IG FUSE (LEFT END OF DASH) LT GRN WIRE M- M+ ETA NCA WIRE ORG/ WIRE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (TRANSMISSION ASSEMBLY) PNK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RELAY ENERGIZED STOP LIGHT SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) STOP SW FUSE THROTTLE BODY ASSEMBLY (TOP OF ENGINE) VCTA VTA VIO WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/GRN 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

17 16 6 7 19 18 RR+ RR- FR- FR+ FL+ FL- 23 21 13 STP CAN+ CAN- 24 7 1 20 21 10 3 16 17 25 26 14 4 5 6 12 13 SL SLT- SLT+ NTO NTB 4 5 RL- RL+ BLK WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE ACTUATOR ASSEMBLY (LEFT REAR OF ENGINE COMPT) BRN WIRE COMPUTER DATA LINES SYSTEM ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID (ON TRANSMISSION) GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE LT GRN WIRE OIL ORG/ WIRE PNK WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE SLT+ NTB NTO SLT- SL SLU+ SLU- SLU+ TRANSMISSION CONTROL ECU (LEFT SIDE OF ENGINE COMPT) VIO WIRE VIO/YEL WIRE WHT WIRE YEL WIRE YEL/GRN WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 GND 1 2 PNK WIRE 5 13 14 VC HSSR BDR BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM ECI+ ECI- ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) FOOT LIGHT GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT/RIGHT MOTOR LT BLU WIRE LT GRN WIRE MIRROR HEATER MIRROR POSITION SENSOR MIRRORS SYSTEM MSWE ORG/ WIRE PNK WIRE RED WIRE RETRACTOR RH J/B-AM FUSE RIGHT FRONT SEAT MEMORY SWITCH RIGHT OUTER MIRROR CONTROL ECU (RIGHT FRONT DOOR) RIGHT OUTER REAR VIEW MIRROR SENSOR SET- SIG CPUB UP/DOWN MOTOR VIO WIRE VSSR WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 5 4 GND RSSI DATA +5 14 25 CANL CANH ADJUSTING SWITCH BLK WIRE BLU WIRE BRAKE ACTUATOR ASSEMBLY (LEFT REAR OF ENGINE COMPT) CERTIFICATION ECU (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM DOOR CONTROL RECEIVER (CENTER FRONT OF TRUNK) DOWN ECU-IG RH FUSE FOLD FOLD AWAY SWITCH FR DOOR RH FUSE GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) LEFT LT GRN WIRE LT/UP MIRB MIRS MIRE MPX-B FUSE NETWORK GATEWAY ECU (RIGHT END OF DASH) ORG/ WIRE OUTER MIRROR SWITCH ASSEMBLY PNK WIRE RDA RSSI RED WIRE RELAY RIGHT RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT LEFT MSW RIGHT MAIN BODY ECU RT/DN SELECT SWITCH UNFOLD W/ RETRACTOR WHT WIRE WHT/BLK WIRE YEL WIRE

13 14 CANL CANH BDR BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLU WIRE BLU/RED WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CPUB SIG DCTY PKB DEFOGGER SYSTEM ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) FOOT LIGHT FR DOOR LH FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT DOOR COURTESY LIGHT SWITCH (LEFT "B" PILLAR) LEFT FRONT SEAT MEMORY SWITCH LEFT OUTER MIRROR CONTROL ECU (LEFT FRONT DOOR) LEFT OUTER REAR VIEW MIRROR LEFT/RIGHT MOTOR LH J/B-AM FUSE LH-IG FUSE LT BLU WIRE LT GRN WIRE MIRROR HEATER MIRROR POSITION SENSOR MIRRORS SYSTEM MSWE ORG/ WIRE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (TRANSMISSION ASSEMBLY) PARKING BRAKE SWITCH (TOP OF PARKING BRAKE LEVER) PNK WIRE RED WIRE RELAY RETRACTOR RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT MAIN BODY ECU SENSOR SET- SILE ECI- ECI+ UP/DOWN MOTOR VC HSSR 13 14 VIO WIRE VSSR WHT WIRE WHT/BLK WIRE YEL 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

BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE C/OPN RELAY COMPUTER CANL CANH DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM CTSW ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) EFI 2 RELAY EFI FUSE EFI MAIN RELAY EFII EFIO ENGINE OIL PRESSURE SWITCH (LOWER FRONT ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) ENGINE SWITCH F/PMP FUSE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES ID CODE BOX (BEHIND CENTER OF DASH) INJ FUSE INJ RELAY KICK DOWN SWITCH (UNDER LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MOPS RFC EPA NSW IMO IMI OF ENGINE) PNK VCPA SPD KSW MOL STSW WIRE PNK WIRE PNK/BLU WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SFTD SFTU CAN- CAN+ TRANSMISSIONS SYSTEM COMPUTER DATA LINES SYSTEM SKSW STARTING/ CHARGING SYSTEM STARTING/ RL CHARGING SYSTEM STP KD TACH STSW TRANSMISSIONS SYSTEM VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN 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