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

2 3 PNK ILL- WIRE A/C FUSE BLK WIRE BLLH BLRH BRN WIRE CTB DASH) ECU-IG LH FUSE FR S/ HTR LH FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ LH-IG 2 RELAY ENERGIZED JUNCTION JUNCTION CONNECTOR LEFT COWL SIDE J/B (LEFT END OF LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT SEAT BACK CLIMATE CONTROL BLOWER (DRIVER'S SEAT BACK) LEFT SEAT CUSHION CLIMATE CONTROL BLOWER (DRIVER'S SEAT CUSHION) LEFT SEAT HEATER CONTROL SUB-ASSEMBLY (UNDER DRIVER'S SEAT) LT BLU WIRE LT GRN WIRE ORG/ WIRE PANEL FUSE PNK WIRE RED WIRE RELAY SEAT BACK) SEAT CUSHION) SEAT HEATER CONTROL SEAT HEATER SWITCH SIGN SVSG SWL TAIL RELAY THERMISTOR THL VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

16 8 7 3 10 2 LOUT ROUT A/C AMPLIFIER (BEHIND RIGHT SIDE OF DASH) BLK WIRE BRN WIRE CTB FR S/ HTR RH FUSE GRN WIRE GRY WIRE HOT W/ RH-IG 1 RELAY ENERGIZED IG GND JUNCTION LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK PNK WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RH-IG FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT SEAT BACK CLIMATE CONTROL BLOWER (RIGHT FRONT SEAT BACK) RIGHT SEAT CUSHION CLIMATE CONTROL BLOWER (RIGHT FRONT SEAT CUSHION) RIGHT SEAT HEATER CONTROL SUB-ASSEMBLY (UNDER RIGHT FRONT SEAT) SEAT BACK) SEAT CUSHION) SEAT HEATER CONTROL SG-4 SIGN SWR THERMISTOR THR+ VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 GND SLD+ SLD- FRV- +B FRV+ LFT+ RCL+ LFT- RCL- BLK WIRE BLU WIRE BLU/RED WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) FR DOOR LH FUSE FR P/ SEAT LH FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES JUNCTION JUNCTION CONNECTOR LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT LUMBAR POWER SEAT SWITCH LEFT FRONT POSITION CONTROL ECU, SW (BELOW LEFT SIDE OF DRIVER'S SEAT) LEFT POWER SEAT LIFT POSITION MOTOR (UNDER DRIVER'S SEAT) LEFT POWER SEAT LUMBAR SUPPORT MOTOR (DRIVER'S SEAT BACK) LEFT POWER SEAT RECLINING POSITION MOTOR (DRIVER'S SEAT BACK) LEFT POWER SEAT SLIDE POSITION MOTOR (UNDER DRIVER'S SEAT) LEFT POWER SEAT VERTICAL POSITION MOTOR (UNDER DRIVER'S SEAT) LH-IG 1 RELAY LH-IG FUSE LT GRN WIRE NETWORK GATEWAY ECU (RIGHT END OF DASH) PARK/NEUTRAL POSITION SWITCH ASSEMBLY (TRANSMISSION ASSEMBLY) PNK WIRE RED WIRE SKID CONTROL ECU (BEHIND RIGHT SIDE OF DASH) SYSB WHT WIRE WHT/BLK WIRE YEL WIRE

23 24 ILL+ ILL- 3 6 4 8 SIG BDR CPUB ADJUST SWITCH ANT ASEL BLK WIRE BLU WIRE CERTIFICATION ECU (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM CONTROL ECU (RIGHT FRONT DOOR) DATA DCTY DOOR CONTROL RECEIVER (CENTER FRONT OF TRUNK) DOOR CONTROL RECEIVER 2 (RIGHT REAR CORNER OF TRUNK) DOWN LT/UP ECU-IG RH FUSE END OF DASH) ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) FR DOOR RH FUSE GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES JUNCTION LEFT LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LEFT/RIGHT MOTOR LT BLU WIRE LT GRN WIRE MIRB MIRE MIRS MIRROR POSITION SENSOR MPX-B FUSE MSW NCA WIRE NETWORK GATEWAY ECU (RIGHT END OF DASH) OUTER MIRROR SWITCH ASSEMBLY PNK PNK WIRE PNK WIRE RCO RED WIRE RH-IG 1 RELAY RIGHT RIGHT COWL SIDE J/B (RIGHT RIGHT LEFT RIGHT MAIN BODY ECU RIGHT OUTER MIRROR RIGHT OUTER REAR VIEW MIRROR ASSEMBLY RIGHT RT/DN RSSI SELECT SWITCH UP/DOWN MOTOR VC HSSR 13 14 VIO WIRE VSSR WHT WIRE WHT/BLK WIRE YEL WIRE

6 4 3 BDR CPUB SIG BLK WIRE BLU WIRE BLU/RED WIRE COMPUTER DATA LINES SYSTEM ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) FR DOOR LH FUSE FRONT DOOR) GRN WIRE GRY WIRE HOT AT ALL TIMES JUNCTION JUNCTION CONNECTOR LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT MEMORY SWITCH LEFT OUTER MIRROR CONTROL ECU (LEFT LEFT OUTER REAR VIEW MIRROR ASSEMBLY LEFT/RIGHT MOTOR LH-IG 1 RELAY LH-IG FUSE LT BLU WIRE LT GRN WIRE MIRROR POSITION SENSOR MSWE ORG/ WIRE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (TRANSMISSION ASSEMBLY) PNK WIRE RED WIRE SET- SILE SKID CONTROL ECU (BEHIND RIGHT SIDE OF DASH) UP/DOWN MOTOR VC HSSR 13 14 VIO WIRE VSSR WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BLU/RED WIRE COMPUTER DATA LINES SYSTEM DOWN ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) FR DOOR LH FUSE GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HEADLAMP DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES JUNCTION JUNCTION CONNECTOR LEFT COWL SIDE J/B (LEFT END OF DASH) LH-IG 1 RELAY LH-IG FUSE LONG LT GRN WIRE MSW NETWORK GATEWAY ECU (RIGHT END OF DASH) PARK/NEUTRAL POSITION SWITCH ASSEMBLY (TRANSMISSION ASSEMBLY) PNK WIRE RED WIRE SHORT SKID CONTROL ECU (BEHIND RIGHT SIDE OF DASH) SWITCH TILT, TELESCOPIC WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

ABS 1 FUSE AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/WHT WIRE BLU WIRE CDS FUSE COOLING FANS SYSTEM D/C CUT FUSE DEFOG FUSE DEFOGGER SYSTEM DOME FUSE ENGINE ROOM J/B 1, ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) FAN-2 FUSE FROM FAN 1 FUSE (DIAGRAM 1 OF 5) FROM RAD 2 FUSE (DIAGRAM 1 OF 5) GRN WIRE HEAD LP RELAY HEATER FUSE INSTRUMENT CLUSTER, INTERIOR LIGHTS, TRUNK, TAILGATE, FUEL DOORS SYSTEMS JUNCTION LH J/B-AM FUSE MAIN FUSE MAIN FUSE (DIAGRAM 3 OF 5) MPX-B FUSE NOISE FILTER (GHOST BUSTER) B+ RED WIRE RH J/B-AM FUSE TO A/C FUSE (DIAGRAM 4 OF 5) TO STOP SW FUSE (DIAGRAM 4 OF 5) WHT WIRE WHT/BLK WIRE YEL WIRE

ACCD BATB FR DOOR RH FUSE BLK WIRE BLU WIRE CRUISE CONTROL, ENGINE CONTROLS, TRANSMISSIONS, ANTI-LOCK BRAKES SYSTEMS EFI 2 RELAY EFI FUSE EFI MAIN RELAY ENGINE CONTROLS, TRANSMISSIONS SYSTEMS ENGINE ROOM J/B 1, ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) ENGINE ROOM J/B 2, ENGINE ROOM R/B 2 (LEFT SIDE OF ENGINE COMPT) ENGINE SWITCH F/PMP FUSE FROM D/C CUT FUSE (DIAGRAM 2 OF 5) GAUGE FUSE GRN WIRE GRN/RED WIRE IG 2 FUSE IG 2 MAIN FUSE IG 2 RELAY IGN FUSE INJ FUSE INJ RELAY INSTRUMENT CLUSTER SYSTEM JUNCTION JUNCTION CONNECTOR KICK PANEL) LH J/B-B FUSE LT BLU WIRE LT GRN WIRE LT LT MIRRORS, MEMORY, POWER WINDOWS SYSTEMS ORG/ WIRE P/I-B FUSE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) POWER WINDOWS SYSTEM RED WIRE RH J/B-B FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT MAIN BODY ECU RR DOOR RH FUSE FUSE SHIFT INTERLOCK SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TO FR DOOR LH FUSE (DIAGRAM 5 OF 5) TO PWR OUTLET RELAY RELAY (DIAGRAM (DIAGRAM 5 OF 5) 5 OF 5) WHT WIRE

ANTI-THEFT SYSTEM BLK WIRE BLU WIRE BRN WIRE CIG FUSE CIGARETTE LIGHTER ASSEMBLY DOOR LOCKS, MEMORY, POWER WINDOWS SYSTEMS ECU-IG RH FUSE FR DOOR LH FUSE FR S/ HTR RH FUSE FROM LEFT COWL SIDE J/B (DIAGRAM 4 OF 5) FROM LH J/B-B FUSE (DIAGRAM (3 OF 5) FROM OBD FUSE (DIAGRAM 4 OF 5) FROM POWER SOURCE CONTROL ECU (DIAGRAM 3 OF 5) FUSE GRN WIRE JUNCTION LEFT COWL SIDE J/B (LEFT END OF DASH) LT GRN WIRE MEMORY SYSTEMS MIRRORS, MEMORY, STARTING/ CHARGING SYSTEMS NAVIGATION, SOUND SYSTEMS NAVIGATION, SOUND, INSTRUMENT CLUSTER, COMPUTER DATA LINES SYSTEMS ORG/ WIRE PNK WIRE POWER OUTLET SOCKET ASSEMBLY POWER WINDOWS SYSTEM PWR OUTLET FUSE PWR POINT RELAY RELAY RH-IG 1 RELAY RH-IG FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT MAIN BODY ECU RR DOOR LH FUSE SEATS SYSTEM SEATS, CRUISE CONTROL, TRANSMISSIONS, NAVIGATION SYSTEMS SECURITY FUSE WHT WIRE YEL WIRE

1 21 2 22 20 39 IG BLK WIRE BLU WIRE BRN WIRE DOME FUSE ECI- ECI+ MIRROR CONTROL ECU EC- EC+ (LEFT FRONT DOOR) ECU-IG LH FUSE ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) GARAGE DOOR OPENER GRN WIRE HOT AT ALL TIMES HOT W/ LH-IG 2 RELAY ENERGIZED INNER REAR VIEW MIRROR ASSEMBLY JUNCTION JUNCTION CONNECTOR LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT OUTER LEFT OUTER REAR VIEW MIRROR ASSEMBLY LT GRN WIRE ORG/ WIRE OVERHEAD MODULE (CENTER FRONT OF ROOF) PNK 5 4 3 2 1 +B IG EC+ EC- WIRE PNK WIRE RED WIRE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT OUTER ECI- ECI+ MIRROR CONTROL ECU EC- EC+ (RIGHT FRONT DOOR) RIGHT OUTER REAR VIEW MIRROR ASSEMBLY VIO WIRE WHT WIRE WHT/BLK WIRE