Lexus IS II (2005-2008) micro computer Wiring diagrams

+BM BLK WIRE BLU WIRE BRN WIRE CAIH CAIL COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE ENGINE ROOM 1 J/B (RIGHT REAR OF ENGINE COMPT) GATEWAY ECU GRN/RED WIRE GRY WIRE HOT AT ALL TIMES INPUT CIRCUIT LT GRN WIRE MICRO COMPUTER MPX MPX-B FUSE NCA WIRE ORG/ WIRE PNK WIRE RED WIRE SKID CONTROL ECU W/ ACTUATOR SPEEDOMETER SUPPLY POWER THROTTLE BODY ASSEMBLY TRANSMISSION CONTROL SWITCH (A/T) VIO WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/GRN WIRE

+BM 6 7 PNK WIRE BLK WIRE BLU WIRE BRN WIRE CAIH CAIL COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE ENGINE ROOM 1 J/B (RIGHT REAR OF ENGINE COMPT) GATEWAY ECU GRN/RED WIRE HOT AT ALL TIMES INPUT CIRCUIT LT GRN WIRE MICRO COMPUTER MPX MPX-B FUSE NCA WIRE ORG/ WIRE PNK WIRE RED WIRE SKID CONTROL ECU W/ ACTUATOR SPEEDOMETER SUPPLY POWER THROTTLE BODY ASSEMBLY VIO WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL/GRN WIRE

+IG 4 6 7 HEAD AFS OFF AUTO BLU WIRE BODY ECU BRN WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM COWL SIDE J/B RIGHT (AT RIGHT END OF DASH) DIMMER SWITCH GRN WIRE GRN/RED WIRE GRY WIRE HEAD HEAD AUTO HEADLAMP DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HOT IN ON OR START COWL SIDE J/B RIGHT (AT RIGHT END OF DASH) GAUGE FUSE INPUT CIRCUIT LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MICRO COMPUTER MPX+ MPX- MPX-B FUSE OFF TAIL ORG/ WIRE POWER SUPPLY CIRCUIT STEERING SENSOR (AT STEERING COLUMN) TAIL WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY

ABS BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE ACTUATOR (LEFT REAR OF ENGINE COMPT) BRAKE LAMP RELAY BRAKE/ BRN WIRE BRN/WHT WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM ECU-IG FUSE ENGINE ROOM 2 R/B (LEFT SIDE OF ENGINE COMPT) FLA- FRA GAUGE FUSE GRD GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES IG+ POWER SUPPLY INPUT CIRCUIT J/C LT GRN WIRE MASTER MICRO COMPUTER MPX+ MPX- 6 18 NCA WIRE ORG/ WIRE PARKING BRAKE SWITCH PMC PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RED/BLK WIRE RED/WHT WIRE RELAY RELAY ENERGIZED RIGHT RIGHT COWL SIDE J/B (AT RIGHT END OF DASH) RLA- RRA+ SFLR SFRR SI SLIP SPEEDOMETER 1 13 SRLR SRRR SSEL STOP LAMP SWITCH STOP SW FUSE VCM VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE

1 3 9 10 2 IG BAT CANL CANH ESS 24 25 CANL CANH COMPUTER DATA LINES SYSTEM 5 4 3 2 1 IG 6 18 17 MPX+ MPX- COMPUTER DATA LINES SYSTEM A/T ABS BLK WIRE BLU WIRE BLU/WHT WIRE BRAKE/ BRN WIRE CAMSHAFT TIMING OIL CONTROL VALVE (LEFT EXHAUST) (ON LEFT CYLINDER HEAD) CAMSHAFT TIMING OIL CONTROL VALVE (LEFT INTAKE) (ON LEFT CYLINDER HEAD) CAMSHAFT TIMING OIL CONTROL VALVE (RIGHT EXHAUST) (ON RIGHT CYLINDER HEAD) CAMSHAFT TIMING OIL CONTROL VALVE (RIGHT INTAKE) (ON RIGHT CYLINDER HEAD) COMBINATION METER COMPUTER DATA LINES SYSTEM PNK WIRE CRANKSHAFT POSITION SENSOR ECU-IG FUSE ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) GAUGE FUSE GRN WIRE GRN/RED WIRE HOT AT ALL TIMES IG FUSE INPUT CIRCUIT LEFT LEFT COWL SIDE J/B (AT LEFT END OF DASH) LT GRN WIRE M- M+ M/T MASTER MICRO COMPUTER NCA WIRE NE- NE+ ORG/ WIRE PARKING BRAKE SWITCH PNK CANH CANL GRD COMPUTER DATA LINES SYSTEM WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) POWER SUPPLY RED WIRE RELAY RELAY ENERGIZED RIGHT RIGHT COWL SIDE J/B (AT RIGHT END OF DASH) SLIP SPEEDOMETER STEERING SENSOR (AT STEERING COLUMN) STOP SW FUSE THROTTLE BODY ASSEMBLY VIO WIRE VSC WARNING BUZZER WHT WIRE WHT/BLK WIRE YAW RATE SENSOR (UNDER CENTER CONSOLE) YEL WIRE YEL/BLK WIRE

+IG A/C AMPLIFIER (BEHIND CENTER OF DASH) AUTO BLK WIRE BLU WIRE BODY ECU BRN WIRE BRN/RED WIRE CLOCK ASSEMBLY INTEGRATION, PANEL ASSEMBLY COMBINATION METER COWL SIDE J/B LEFT (AT LEFT END OF DASH) COWL SIDE J/B RIGHT (AT RIGHT END OF DASH) ENGINE ROOM J/B 1, ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) FUSE GATEWAY ECU (AT RIGHT END OF DASH) GRN RED/ WIRE GRN WIRE GRN/RED WIRE GRY WIRE HEAD HEAD AUTO HEADLAMP DIMMER SWITCH ASSEMBLY HEADLAMP SWIVEL ECU (LEFT KICK PANEL) HOT AT ALL TIMES HOT IN ON OR START HOT IN ON OR START COWL SIDE J/B RIGHT (AT RIGHT END OF DASH) ECU-IG RH FUSE HOT IN ON OR START COWL SIDE J/B RIGHT (AT RIGHT END OF DASH) GAUGE FUSE INPUT CIRCUIT JI (LEFT KICK PANEL) LEFT LH-IG FUSE LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE MICRO COMPUTER MPX MPX+ MPX- OFF TAIL ORG/ WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) POWER SUPPLY CIRCUIT POWER WINDOW MASTER SWITCH CERTIFICATION ECU (RIGHT SIDE OF TRUNK) RED WIRE RIGHT TAIL TIRE PRESSURE WARNING ECU (BEHIND CENTER OF DASH) TURN LH TURN RH TURN SIGNAL SWITCH W/ LEXUS NAVIGATION SYSTEM W/O LEXUS NAVIGATION SYSTEM WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

+IG 23 6 7 5 HEAD AUTO AUTOMATIC LIGHT CONTROL SENSOR (BEHIND LEFT SIDE OF DASH) BATB BEAM BLK WIRE BLU WIRE BODY ECU HRLY BRN WIRE CLTB CLTE CLTS COMBINATION METER COMPUTER DATA LINES SYSTEM COWL SIDE J/B RIGHT (AT RIGHT END OF DASH) DCTY DIMMER SWITCH ECU-IG RH FUSE FOG SWITCH FR DOOR RH FUSE FRONT FOG FUSE GAUGE FUSE GRN WIRE GRN/RED WIRE GRY WIRE HEAD HEAD AUTO HEAD CLTB CLTS HEAD FOG HEADLAMP DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HOT IN ACC HOT IN ON OR START INPUT CIRCUIT LEFT FRONT DOOR COURTESY SWITCH LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE MICRO COMPUTER MPX+ MPX- OFF TAIL ORG/ WIRE POWER SUPPLY CIRCUIT RED WIRE RED/WHT WIRE TAIL TI, TE FUSE TO FRONT CONTROLLER (DIAGRAM WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY

+IG 23 6 7 5 HEAD AUTO AUTOMATIC LIGHT CONTROL SENSOR (BEHIND LEFT SIDE OF DASH) BATB BEAM BLK WIRE BLU WIRE BODY ECU HRLY BRN WIRE CLTB CLTE CLTS COMBINATION METER COMPUTER DATA LINES SYSTEM COWL SIDE J/B RIGHT (AT RIGHT END OF DASH) DCTY DIMMER SWITCH ECU-IG RH FUSE FOG SWITCH FR DOOR RH FUSE FRONT FOG FUSE GAUGE FUSE GRN WIRE GRN/RED WIRE GRY WIRE HEAD HEAD AUTO HEAD CLTB CLTS HEAD FOG HEADLAMP DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HOT IN ACC HOT IN ON OR START INPUT CIRCUIT LEFT FRONT DOOR COURTESY SWITCH LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE MICRO COMPUTER MPX+ MPX- OFF TAIL ORG/ WIRE POWER SUPPLY CIRCUIT RED WIRE RED/WHT WIRE TAIL TI, TE FUSE TO FRONT CONTROLLER (DIAGRAM WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY

25 24 CANH CANL COMPUTER DATA LINES SYSTEM 32 31 NE+ NR- ENGINE CONTROLS SYSTEM 6 18 MPX+ MPX- 6 20 2.5L 3.5L 6 21 17 18 4 13 3 12 GTX+ GTX- NAVIGATION SYSTEM (NAVIGATION CIRCUIT) BACK-UP LAMP SWITCH BKUP BLK WIRE BODY COMPUTER BODY COMPUTER PKB BRN WIRE CLEARANCE SONAR CLEARANCE WARNING BUZZER CLEARANCE WARNING ECU COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM A/T ENGINE CONTROL GATEWAY ECU GRD GRN WIRE GRY WIRE HOT AT ALL TIMES IG CBZ IG FUSE INPUT CIRCUIT INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT COWL SIDE J/B (AT LEFT END OF DASH) LEFT FRONT CORNER ULTRASONIC SENSOR LEFT REAR CENTER ULTRASONIC SENSOR LEFT REAR CORNER ULTRASONIC SENSOR LT BLU WIRE LT GRN WIRE M/T M/T A/T MICRO COMPUTER ORG/ WIRE PARK/ NEUTRAL POSITION SWITCH PARKING BRAKE SWITCH PNK PNK WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RELAY RIGHT COWL SIDE J/B (AT RIGHT END OF DASH) RIGHT FRONT CORNER ULTRASONIC SENSOR RIGHT REAR CENTER ULTRASONIC SENSOR RIGHT REAR CORNER ULTRASONIC SENSOR SKID CONTROL ECU SPEEDOMETER VIO WIRE W/ VEHICLE DYNAMICS INTEGRATED MANAGEMENT W/O VEHICLE DYNAMICS INTEGRATED MANAGEMENT WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

23 19 13 14 PKB SEUC REV SPD 25 24 CANH CANL 32 31 NE+ NR- ENGINE CONTROLS SYSTEM 6 21 17 18 4 13 3 12 GTX+ GTX- NAVIGATION SYSTEM (NAVIGATION CIRCUIT) A/T BACK-UP LAMP SWITCH BLK WIRE BLU WIRE BODY COMPUTER BACK BODY COMPUTER IND BRN WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROL GATEWAY ECU GRD GRN WIRE GRY WIRE HOT AT ALL TIMES IG BKUP IG FUSE INPUT CIRCUIT INSTRUMENT CLUSTER LEFT COWL SIDE J/B (AT LEFT END OF DASH) LT BLU WIRE LT GRN WIRE M/T MICRO COMPUTER MPX MULTI-DISPLAY ORG/ WIRE PARK/ NEUTRAL POSITION SWITCH PARKING BRAKE SWITCH PNK PNK WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RELAY RIGHT COWL SIDE J/B (AT RIGHT END OF DASH) SKID CONTROL ECU SPEEDOMETER +S STEREO COMPONENT AMPLIFIER VIO WIRE W/ VEHICLE DYNAMICS INTEGRATED MANAGEMENT W/O VEHICLE DYNAMICS INTEGRATED MANAGEMENT WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE