Lexus IS II facelift (2008-2010) junction connector 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

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

1 3 4 6 GND SIG CPUB BDR ANT ASEL BLK WIRE BLU WIRE CERTIFICATION ECU (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM DATA DCTY DOOR CONTROL RECEIVER (CENTER FRONT OF TRUNK) DOOR CONTROL RECEIVER 2 (RIGHT REAR CORNER OF TRUNK) ECU-IG RH FUSE ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES JUNCTION CONNECTOR LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LEFT FRONT SEAT MEMORY SWITCH LEFT OUTER MIRROR CONTROL ECU (LEFT FRONT DOOR) LT BLU WIRE LT GRN WIRE MPX-B FUSE MSWE NCA WIRE ORG/ WIRE PNK 34 7 24 WIRE PNK PNK WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RCO RED WIRE RH-IG 1 RELAY RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT MAIN BODY ECU RSSI SET- SILE WHT WIRE WHT/BLK WIRE YEL WIRE

BRN WIRE FR S/ HTR LH FUSE FUSE GRN WIRE HOT AT ALL TIMES HOT W/ LH-IG 2 RELAY ENERGIZED HOT W/ RH-IG 1 RELAY ENERGIZED FR S/ HTR RH JUNCTION JUNCTION CONNECTOR LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT SEAT HEATER CONTROL SUB-ASSEMBLY (UNDER DRIVER'S SEAT) LT BLU WIRE ORG/ WIRE PANEL FUSE PNK WIRE RED WIRE RH-IG FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT SEAT HEATER CONTROL SUB-ASSEMBLY (UNDER RIGHT FRONT SEAT) SEAT BACK) SEAT CUSHION) SEAT HEATER CONTROL SEAT HEATER SWITCH SWL SWR TAIL RELAY THERMISTOR THL THR+ VIO WIRE 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

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

3 4 6 SIG CPUB BDR BLK WIRE BLU WIRE COMPUTER DATA LINES SYSTEM ECU-IG RH FUSE ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES JUNCTION CONNECTOR LT GRN WIRE MPX-B FUSE MSWE ORG/ WIRE PCTY PNK 34 7 24 WIRE PNK PNK WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RH-IG 1 RELAY RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT FRONT DOOR COURTESY SWITCH RIGHT FRONT SEAT MEMORY SWITCH RIGHT MAIN BODY ECU RIGHT OUTER MIRROR CONTROL ECU SET- 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

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