Lexus IS II facelift (2008-2010) junction connector Wiring diagrams

A/C AMPLIFIER (BEHIND RIGHT SIDE OF DASH) A/C FUSE A/C PRESSURE SENSOR (LEFT SIDE OF RADIATOR) BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLLH BLRH BLU WIRE BLU/BLK WIRE BLW BRN WIRE BRN/RED WIRE CLTB CLTE CLTS COMPRESSOR ASSEMBLY COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DGS DGS TSD TAM SG SG-2 SG-6 ECU-IG LH FUSE FLOW CONTROL FRONT BLOWER W/ FAN MOTOR SUB- ASSEMBLY GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ LH-IG 1 RELAY ENERGIZED HOT W/ LH-IG 2 RELAY ENERGIZED JUNCTION CONNECTOR LEFT COWL SIDE J/B (AT LEFT END OF DASH) LH-IG FUSE LOUT LT GRN WIRE MHTR RDFG MPX+ MPX- ORG/ WIRE PNK WIRE PRE TSP PNK WIRE RED WIRE ROUT SEAT HEATER SWITCH (W/ CLIMATE CONTROL SEAT) SEATS SYSTEM SG-1 GND IG+ SG-4 SMOG VENTILATION SENSOR (IN FRONT OF RADIATOR) SOL + SVSG TSL TSR VALVE VIO WIRE VIO/RED WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/GRN 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 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

BLK WIRE BRN WIRE CONTROL STEERING RIGHT DISTANCE CRUISE CONTROL MAIN SWITCH GRN WIRE GRY WIRE HOT W/ LH-IG 2 RELAY ENERGIZED ECU- SIDE J/B IG LH (LEFT FUSE END OF DASH) JUNCTION JUNCTION CONNECTOR LEFT COWL LEFT PADDLE SHIFT SWITCH MODE ON OFF ORG/ WIRE PAD SWITCH PADDLE SHIFT SWITCH PNK WIRE RED WIRE RED/BLK WIRE RIGHT PADDLE SHIFT SWITCH SPIRAL CABLE (UNDER STEERING WHEEL) STEERING PAD SWITCH ASSEMBLY TRANSMISSION FLOOR SHIFT ASSEMBLY VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/GRN WIRE

1 2 3 4 5 LGND SGND LRDD LRRD IGB BLK 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) 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

+B PGND 1 2 3 4 5 6 7 8 CAN H CAN L 22 23 13 8 9 LRDD LRRD IGB CAN H CAN L 6 18 MPX+ MPX- COMPUTER DATA LINES SYSTEM 8 16 COMPUTER DATA LINES SYSTEM CAN H CAN L BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DISTANCE CONTROL ECU (BEHIND LEFT SIDE OF DASH) ECU-IG RH FUSE GRY WIRE HOT AT ALL TIMES LEFT COWL SIDE J/B (LEFT END OF DASH) PSB FUSE HOT W/ IG 2 RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) GAUGE FUSE HOT W/ RH-IG 1 RELAY ENERGIZED INPUT CIRCUIT JUNCTION CONNECTOR LEFT FRONT PRE-COLLISION SEAT BELT MOTOR (BASE OF LEFT "B" PILLAR) LT BLU WIRE LT GRN WIRE MICRO COMPUTER MILLIMETER WAVE RADAR SENSOR (BEHIND CENTER OF FRONT GRILLE) MOR- MOR+ MOL+ MOL- ORG/ WIRE PCS IND PNK COMPUTER DATA LINES SYSTEM WIRE PNK IGB LRRD LRDD WIRE POWER SUPPLY CIRCUIT RED WIRE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT FRONT PRE-COLLISION SEAT BELT MOTOR (BASE OF RIGHT "B" PILLAR) SEAT BELT CONTROL ECU (LEFT SIDE OF TRUNK) SKID CONTROL ECU (BEHIND RIGHT SIDE OF DASH) WHT WIRE WHT/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 IG BLK WIRE BLK/ WHT WIRE BLU RED/ WIRE BLU WIRE BLU/WHT WIRE BRN WIRE ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) HOT AT ALL TIMES HOT W/ LH-IG 2 RELAY ENERGIZED ECU- SIDE J/B IG LH (LEFT FUSE END OF DASH) JUNCTION JUNCTION CONNECTOR LEFT COWL LT BLU WIRE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (TRANSMISSION ASSEMBLY) POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RED/ BLU WIRE RED/BLK WIRE RIGHT COWL SIDE J/B (RIGHT END OF DASH) SHIFT LOCK CONTROL ECU (UNDER CENTER CONSOLE) SLS+ STOP LIGHT SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) STOP SW FUSE WHT WIRE WHT/BLK WIRE