Lexus IS II facelift (2008-2010) computer data lines system Wiring diagrams

25 14 11 CANH CANL BLK WIRE BLU/WHT WIRE BRN WIRE CIRCUIT COMBINATION METER COMPUTER DATA LINES SYSTEM COMPUTER RIGHT COWL DATA LINES SIDE J/B SYSTEM (RIGHT END OF DASH) DOME+B ECU (RIGHT KICK PANEL) ECU-IG RH FUSE ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID (ON TRANSMISSION) ENGINE ROOM R/B 1 FREE GAUGE FUSE GRN WIRE GRN/RED WIRE HOT AT ALL TIMES HOT W/ IG 2 RELAY ENERGIZED IND INPUT CIRCUIT LT GRN WIRE MASTER MICRO COMPUTER MPX MPX-B FUSE (RIGHT REAR OF ENGINE COMPT) ORG/ WIRE PNK COMPUTER DATA LINES SYSTEM WIRE PNK WIRE PNK/BLU WIRE POWER SOURCE CONTROL ECU (RIGHT SIDE OF DASH) RED WIRE RELAY RIGHT COWL SIDE J/B (RIGHT END OF DASH) SKID CONTROL ECU (W/ ACTUATOR) (LEFT REAR OF ENGINE COMPT) SLC+ SLC+ CANH SLIP SPEEDOMETER SUPPLY POWER VIO WIRE VIO/YEL WIRE WHT/BLK WIRE YEL WIRE

14 13 CANH CANL ALT FUSE BATTERY BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE CHARGE INDICATOR COMBINATION METER ASSEMBLY +IG COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) GAUGE FUSE GENERATOR ASSEMBLY IG GRN/RED WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B 1 (RIGHT REAR OF ALT-S FUSE ENGINE COMPT) HOT AT ALL TIMES ENGINE ROOM R/B 1 DOME FUSE (RIGHT REAR OF ENGINE COMPT) INPUT CIRCUIT LEFT COWL SIDE J/B (LEFT END OF DASH) LH-IG FUSE LT GRN WIRE MICRO COMPUTER MPX+ MPX- MPX-B FUSE NETWORK GATEWAY ECU ORG/ WIRE PNK ALT WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) POWER SUPPLY CIRCUIT RELAY RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT END OF DASH) STARTER ASSEMBLY WHT WIRE WHT/BLK WIRE YEL WIRE

26 14 BECU DCTY 29 37 38 39 27 28 RCO ASEL RDA RSSI 7 6 5 3 4 2 ANT GND RSSI DATA ASEL AUTO BLK WIRE BLU WIRE BODY ECU RIGHT COWL SIDE J/B (RIGHT END OF DASH) BRN WIRE BZR CERTIFICATION ECU (RIGHT SIDE OF TRUNK) CHK UP DWN CLS CLS OPN COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DOME +B DOOR CONTROL RECEIVER 2 (RIGHT REAR CORNER OF TRUNK) DOWN ECU-IG LH FUSE ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) GAUGE FUSE GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES INPUT CIRCUIT KUL KUL LEFT FRONT DOOR LOCK ASSEMBLY (REAR OF LEFT FRONT DOOR) LCD (MULTI) LEFT COWL SIDE J/B (LEFT END OF DASH) LT BLU WIRE LT GRN WIRE MASTER IND MICRO COMPUTER MPX MPX+ MPX- MPX-B FUSE NCA WIRE OF ROOF) OPN ORG/ WIRE OVERHEAD MODULE (CENTER FRONT POWER SUPPLY CIRCUIT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY PUSH RED WIRE RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) S/ROOF FUSE SLIDING ROOF CONTROL ECU (CENTER FRONT OF ROOF) SLIDING ROOF SWITCHES VIO WIRE WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER (LEFT SIDE OF ENGINE COMPT) YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 LSW 4 8 10 2 5 AUTO LED ANT ASEL BLK WIRE BLU WIRE BRN WIRE CERTIFICATION ECU (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM CPUB DATA DOOR CONTROL RECEIVER (CENTER FRONT OF TRUNK) DOOR CONTROL RECEIVER 2 (RIGHT REAR CORNER OF TRUNK) FR DOOR LH FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES KEY LOCK KEY UNLOCK KUL LED LED AUTO LIN LED LIN PNK WIRE LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT DOOR LOCK ASSEMBLY (REAR OF LEFT FRONT DOOR) LEFT FRONT POWER WINDOW REGULATOR MOTOR (LEFT FRONT DOOR) LEFT MAIN BODY ECU LEFT REAR POWER WINDOW REGULATOR MOTOR (LEFT REAR DOOR) LEFT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LT BLU WIRE LT GRN WIRE NCA WIRE PNK PNK WIRE PNK WIRE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY RCO RDA ASEL RSSI RED WIRE RR DOOR LH FUSE RSSI SIG WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE BZR COMPUTER DATA LINES SYSTEM DCTY 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 LED LED AUTO LED AUTO LIN LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LT GRN WIRE MOTOR (RIGHT FRONT DOOR) MPX-B FUSE PNK LIN WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RELAY RIGHT COWL SIDE J/B (RIGHT RIGHT FRONT POWER WINDOW REGULATOR RIGHT FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RIGHT MAIN BODY ECU RIGHT REAR POWER WINDOW REGULATOR MOTOR (RIGHT REAR DOOR) RIGHT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RR DOOR RH FUSE WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER (LEFT SIDE OF ENGINE COMPT)

+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 19 3.5L 2.5L A/T M/T BACKUP LAMP SWITCH (RIGHT SIDE OF TRANSMISSION) BKUP BLU WIRE BODY ECU COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES LEFT COWL SIDE J/B (LEFT END LEFT COWL SIDE J/B (LEFT END OF DASH) LH-IG FUSE LIMIT SWITCH LT BLU WIRE LT GRN WIRE MPX-B FUSE MPXB OF DASH) PARK/ NEUTRAL POSITION SWITCH (ON TRANSMISSION) PNK 34 24 7 WIRE PNK WIRE POWER SOURCE CONTROL ECU (RIGHT SIDE OF DASH) REAR SUNSHADE RELAY (RIGHT REAR OF VEHICLE) REAR SUNSHADE SWITCH RED WIRE RELAY REV RIGHT COWL SIDE J/B (RIGHT END OF DASH) SGND GND VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

-SR -SL +SR +SL AIR BAG SENSOR SEAT POSITION BBL+ BBL- BBL+ BCL+ BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU WIRE BODY ECU BUCKLE SWITCH CENTER AIR BAG SENSOR (UNDER REAR OF CENTER CONSOLE) COMPUTER DATA LINES SYSTEM DK DK ECU-IG RH FUSE GRN WIRE GRY WIRE GSW HOT AT ALL TIMES IGN FUSE GAUGE FUSE LEFT CURTAIN SHIELD AIR BAG ASSEMBLY (LEFT ROOF RAIL) LEFT FRONT PRETENSIONER (BASE OF LEFT "B" PILLAR) LEFT FRONT SEAT INNER BELT ASSEMBLY (UNDER DRIVER'S SEAT) LEFT FRONT SIDE AIR BAG SENSOR (LEFT "B" PILLAR) LEFT FRONT SIDE AIR BAG SQUIB (LEFT SIDE OF DRIVER'S SEAT BACK) LEFT REAR AIR BAG SENSOR (LEFT "C" PILLAR) BCL+ LEFT REAR PRETENSIONER (LEFT "C" PILLAR) LT BLU WIRE LT GRN WIRE ORG/ WIRE P- P+ D+ D- PNK COMPUTER DATA LINES SYSTEM CANL PAON WIRE PNK WIRE RED WIRE RELAY RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END END DASH) SIL P-AB GSW PK+ PK- WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

BBR+ BCR- BCR+ REAR AIR BAG SENSOR BBR- BBR+ (RIGHT "C" PILLAR) BLK WIRE BRN WIRE CLOCK ASSEMBLY CLOCK IG+ COMPUTER DATA LINES SYSTEM DRIVER SIDE SQUIB CIRCUIT FRONT PASSENGER SIDE SQUIB CIRCUIT GRN WIRE GRY WIRE INTEGRATION CONTROL, PANEL ASSEMBLY IG+ LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT AIR BAG SENSOR LOWER INSTRUMENT PANEL AIR BAG ASSEMBLY 1 LOWER INSTRUMENT PANEL AIR BAG ASSEMBLY 2 LT BLU WIRE ORG/ WIRE P-AB PAON PNK WIRE RED WIRE RIGHT RIGHT CURTAIN SHIELD AIR BAG ASSEMBLY (RIGHT ROOF RAIL) RIGHT FRONT AIR BAG SENSOR RIGHT FRONT PRETENSIONER (BASE OF RIGHT "B" PILLAR) RIGHT FRONT SIDE AIR BAG SENSOR (RIGHT "B" PILLAR) RIGHT FRONT SIDE AIR BAG SQUIB (RIGHT SIDE OF RIGHT FRONT SEAT BACK) RIGHT REAR PRETENSIONER (RIGHT "C" PILLAR) SL- SPIRAL LABLE SUB- ASSEMBLY SR- VIO WIRE W/ NAVIGATION SYSTEM INTEGRATION CONTROL, PANEL ASSEMBLY W/O NAVIGATION SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

23 13 22 8 9 LRRD IGB LRDD CANH CANL PNK WIRE 3 5 4 LRDD IGB LRRD PNK WIRE 5 3 2 IG CANH CANL PNK WIRE 8 16 11 CANH CANL BZ ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BUCKLE SWITCH RIGHT FRONT SEAT INNER BELT ASSEMBLY (UNDER RIGHT FRONT SEAT) COMBINATION METER ASSEMBLY SI COMPUTER DATA LINES SYSTEM DISTANCE CONTROL ECU (BEHIND LEFT SIDE OF DASH) ECU-IG LH FUSE GBT GND PS VPS GBT IG DIA FSR+ FSR- BSW BGND GPS BT VBT GPS GRN WIRE GRY WIRE HOT AT ALL TIMES IG+ ES INPUT CIRCUIT LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT COWL SIDE J/B (LEFT END RELAY OF DASH) LT GRN WIRE MICRO COMPUTER MILLIMETER WAVE RADAR SENSOR (BEHIND CENTER OF FRONT GRILLE) MPX+ MPX- OCCUPANT CLASSIFICATION SENSOR OCCUPANT DETECTION ECU (UNDER FRONT PASSENGER'S SEAT) ORG/ WIRE PBLT PNK VBT WIRE PNK WIRE POWER SUPPLY CIRCUIT RED WIRE SEAT BELT TENSION SENSOR (BASE OF RIGHT "B" PILLAR) SKID CONTROL BUZZER ASSEMBLY (BEHIND LEFT SIDE OF DASH) SKID CONTROL ECU (BEHIND RIGHT SIDE OF DASH) SRS IND STEERING SENSOR (UNDER LEFT SIDE OF DASH) VIO WIRE VPS WHT WIRE WHT/BLK WIRE YAW RATE SENSOR (UNDER CENTER CONSOLE) YEL WIRE