Lexus GS III facelift (2007-2011) (at right kick panel) Wiring diagrams

11 8 4.6L 3.5L 3.5L BACKUP LIGHT BLK WIRE BLU WIRE BODY ECU BRN WIRE CANL CANH ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT) ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) FRONT CONTROLLER ENGINE ROOM R/B 1 FUSE GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN WIRE GRY WIRE HEADLAMP SWIVEL ECU (UNDER LEFT END OF DASH) HOT AT ALL TIMES HOT IN ON OR START LEFT CENTER J/B (BEHIND RIGHT SIDE OF DASH) LEFT COWL LEFT COWL SIDE J/B (BEHIND BODY ECU LEFT SIDE OF DASH) LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF DASH) LEFT REAR COMBINATION LAMP LH-IG FUSE SIDE J/B (BEHIND LEFT SIDE OF DASH) LUGGAGE ROOM J/B ECU ECUB MPX-B FUSE ORG/ WIRE P-GND PARK/NEUTRAL POSITION SWITCH (ON TRANSMISSION) RED WIRE RIGHT CENTER J/B (BEHIND RIGHT SIDE OF DASH) RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) RIGHT REAR COMBINATION LAMP ROOM J/B RR+B RR-B FUSE ST-PLUG W/ ADAPTIVE FRONT LIGHTING SYSTEM W/O ADAPTIVE FRONT-LIGHTING SYSTEM WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

3.5L 30 31 13 26 38 MPX+ MPX- PRE 4.6L 4.6L 3.5L SUB FAN MOTOR A/C AMPLIFIER (BEHIND CENTER RIGHT OF DASH) A/C PRESSURE SENSOR (LEFT FRONT OF ENGINE COMPT) BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CAN L COMPUTER DATA LINES SYSTEM COOLING FAN ECU CRANKSHAFT POSITION SENSOR (4.6L) (LEFT FRONT OF ENGINE) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT) ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) FAN MAIN RELAY FUSE GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF DASH) LH-IG FUSE LT BLU WIRE LT GRN WIRE MAIN FAN MOTOR NCA WIRE NE+ PNK NE- WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED (OR RED/BLU) WIRE RED WIRE RELAY RFC SG-2 VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE CIRCUIT COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CRUISE IND GRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES ENGINE ROOM MPX-B FUSE R/B 1 (RIGHT REAR OF ENGINE COMPT) HOT AT ALL TIMES RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) STOP SW FUSE HOT W/ RH-IG 1 RELAY ENERGIZED IGN FUSE INPUT CIRCUIT J/C JUNCTION LCD (MULTI) LEFT CENTER J/B (BEHIND LEFT SIDE OF DASH) LEFT CENTER J/B (BEHIND RIGHT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MICRO COMPUTER MPX ON OFF ORG/ WIRE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (ON TRANSMISSION) PNK WIRE POWER SUPPLY RED WIRE RED/BLK WIRE RELAY ENERGIZED RELAY ENERGIZED RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) GAUGE FUSE RH-IG FUSE RIGHT CENTER J/B (BEHIND RIGHT RIGHT CENTER J/B (BEHIND RIGHT SIDE OF DASH) RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) SIDE OF DASH) SPEEDOMETER SPIRAL CABLE TRANSMISSION CONTROL SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

5 25 COMPUTER DATA LINES SYSTEM MPX- MPX+ ABSORBER CONTROL ECU (BEHIND RIGHT END OF DASH) ABSORBER CONTROL SWITCH ABSORBER SPORT IND AIR SUS FUSE BLK WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BRN WIRE CANL CANH COMBINATION METER COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) FAL+ FBL- FRONT ACCELERATION SENSOR (BEHIND LEFT SIDE OF DASH) GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START LEFT FRONT ABSORBER CONTROL ACTUATOR (AT LEFT FRONT SHOCK TOWER) LEFT REAR ABSORBER CONTROL ACTUATOR (AT LEFT REAR SHOCK TOWER) LT BLU WIRE LT GRN WIRE MAX-B FUSE ORG/ WIRE PNK IG WIRE PNK WIRE PNK/BLU WIRE RAR+ RAR- RBR+ RBR- RAL+ RAL- RBL+ RBL- REAR ACCELERATION SENSOR (RIGHT REAR OF LUGGAGE COMPT) RED WIRE RED/BLU WIRE RIGHT CENTER J/B (BEHIND RIGHT SIDE OF DASH) RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) RIGHT FRONT ABSORBER CONTROL ACTUATOR (AT RIGHT FRONT SHOCK TOWER) RIGHT REAR ABSORBER CONTROL ACTUATOR (AT RIGHT REAR SHOCK TOWER) SGB SGFL SGG SGND SGRR SGV SIL VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

ABSORBER CONTROL ECU ABSORBER CONTROL SWITCH BLK WIRE BODY ECU CENTER AIR BAG SENSOR ASSEMBLY CIGARETTE LIGHTER COMBINATION METER CONTROL ECU DATA LINK CONNECTOR 3 ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SWITCH GATEWAY ECU GLOVE BOX LAMP) JUNCTION CONNECTOR LEFT VANITY LAMP SWITCH LUGGAGE COMPARTMENT DOOR OPENER CANCEL SWITCH POWER SOURCE CONTROL ECU POWER SWITCH PWR OUTLET RELAY RELAY RELAY RELAY RIGHT CENTER J/B (BEHIND RIGHT COWL SIDE J/B (BEHIND RIGHT FRONT ABSORBER CONTROL ACTUATOR RIGHT VANITY LAMP SWITCH SEAT HEATER SWITCH SHIFT LOCK CONTROL ECU STEERING CONTROL ECU STEERING LOCK ECU TILT MOTOR TILT, TELESCOPE ECU TIRE PRESSURE WARNING ECU TIRE PRESSURE WARNING RESET SWITCH TIRE PRESSURE WARNING SELECT SWITCH TO LEFT COWL SIDE J/B (DIAGRAM 5 OF 8) TRACTION CONTROL SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE

1 2 TX- TX+ 10 9 TX- TX+ 6 4 3 8 9 1 BDR CPUB SIG 8 9 PNK WIRE 9 10 TXM+ TXM- BLK/RED WIRE BLU WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM PNK WIRE ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) FR DOOR LH FUSE FR DOOR RH FUSE GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN WIRE GRN/RED WIRE GRY WIRE GTX+ GTX- HOT AT ALL TIMES LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF DASH) LEFT FRONT DOOR ECU (IN DRIVER'S DOOR) LEFT OUTER REAR VIEW MIRROR (FRONT OF LEFT FRONT DOOR) LEFT REAR DOOR ECU (IN LEFT REAR DOOR LH-IG FUSE LT BLU WIRE LT GRN WIRE MIRROR HEATER MPX-B FUSE MULTI-DISPLAY PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RADIO RECEIVER ASSEMBLY REAR WINDOW DEFOGGER SWITCH RELAY RH-IG FUSE RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) RIGHT FRONT DOOR ECU (IN RIGHT FRONT DOOR) RIGHT OUTER REAR VIEW MIRROR (FRONT OF RIGHT FRONT DOOR) RIGHT REAR DOOR ECU (IN RIGHT REAR DOOR) WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 IG BLK WIRE BLU WIRE BODY ECU BRN WIRE CMP COMBINATION METER ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) FRONT CONTROLLER FUSE GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN WIRE GRY WIRE GRY/BLU WIRE GTX+ SIL GTX- HOT AT ALL TIMES HOT IN ON OR ACC LEFT CENTER J/B (BEHIND RIGHT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MAYDAY ECU (CENTER REAR OF LUGGAGE COMPT) MPX MULTI-DISPLAY NCA WIRE ORG/ WIRE OVERHEAD J/B (IN OVERHEAD CONSOLE) PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RAIN SENSOR (FRONT CENTER OF ROOF) RED WIRE RELAY RH ECU-IG FUSE RIGHT RIGHT CENTER J/B (BEHIND RIGHT SIDE OF DASH) RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) SLD SLIDING ROOF CONTROL ECU (FRONT OF OVERHEAD CONSOLE) TILT, TELESCOPIC ECU (TOP RIGHT SIDE OF STEERING COLUMN) TIRE PRESSURE WARNING ECU (BEHIND CENTER OF DASH) VIO WIRE WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY

1 14 CANH CANL 1 8 3 2 LCN+ LCN- CANL CANH 3.5L W/ ACTIVE STABILIZER SUSPENSION SYSTEM BLK WIRE BLU WIRE BRN WIRE CAN (+) DATA LINK RIGHT CONNECTOR 3 REAR (BEHIND LEFT POWER SIDE OF DASH) WINDOW SWITCH FRONT STABILIZER CONTROL ECU (RIGHT FRONT CORNER OF ENGINE COMPT) GRN WIRE GRY WIRE LEFT CENTER J/B (BEHIND RIGHT SIDE OF DASH) LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF DASH) LEFT REAR POWER WINDOW SWITCH LT GRN WIRE PNK WIRE REAR STABILIZER CONTROL ECU (RIGHT SIDE OF LUGGAGE COMPT) RED WIRE RIGHT CENTER J/B (BEHIND RIGHT SIDE OF DASH) RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) SIDE OF DASH) SIL ST-PLUG VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 +BO 1 2 3 4 5 6 7 8 9 10 IG ESS BAT 1 2 3 4 5 6 7 8 BMV BMU BMW 8 7 SS- SS+ AFS+ IG CAN+ AFS- BLK WIRE BLK/YEL WIRE BLU WIRE BMU+ BMV+ BMW+ BRN WIRE CANL CANH COMBINATION METER COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR 3 (BEHIND LEFT SIDE OF DASH) ECU-B FUSE ECU-IG LH FUSE ENGINE ROOM J/B 1, ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN WIRE GRY WIRE HEADLAMP SWIVEL ECU (UNDER LEFT END OF DASH) HOT AT ALL TIMES HOT IN ON OR START LEFT CENTER J/B (BEHIND RIGHT SIDE OF DASH) LEFT COWL SIDE J/B (BEHIND LEFT LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF DASH) LG+ LT BLU WIRE LT GRN WIRE LV (+) MPX NCA WIRE PGND PIG CAN- +BI RED WIRE RG+ RIGHT CENTER J/B (BEHIND RIGHT SIDE OF DASH) RV SIL RV+ SIDE OF DASH) SIL SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) STEERING ACTUATOR (BEHIND LEFT SIDE OF DASH, NEAR STEERING COLUMN) STEERING CONTROL ECU (UNDER GLOVE COMPARTMENT) STEERING SENSOR (BEHIND LEFT OF DASH, NEAR STEERING COLUMN) VGRS FUSE WHT WIRE WHT/BLK WIRE YEL WIRE

+BM AIR CONDITIONING SYSTEM BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CAMSHAFT TIMING OIL CONTROL VALVE (RIGHT INTAKE SIDE) (RIGHT SIDE OF ENGINE) CENTER J/B RIGHT (BEHIND RIGHT SIDE OF DASH) CRANKSHAFT POSITION SENSOR (ON LEFT FRONT OF ENGINE) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IG 2 RELAY ENERGIZED IGN FUSE LCKI LT BLU WIRE LT GRN WIRE NCA WIRE NE+ ORG/ WIRE PNK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RELAY ENERGIZED RH-IG FUSE SFTD SFTU STOP LAMP SWITCH (ON BRAKE PEDAL BRACKET) STOP SW FUSE TRANSMISSION CONTROL SWITCH VIO WIRE VVL+ VVR+ VVT SENSOR (BANK 1 INTAKE SIDE) (RIGHT SIDE OF ENGINE) VVT SENSOR (BANK 2 INTAKE SIDE) (LEFT SIDE OF ENGINE) WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE