Lexus GS II facelift (2000-2004) computer data lines system Wiring diagrams

+ECU 5 2 11 PWS SH GRD BDR BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BODY ECU 1 BRN/BLK WIRE BSUB BZR RSSI RDA RCO COMBI- NATION METER COMPUTER DATA LINES SYSTEM CPUB SIG CTY CTYE ML MUL DLE KUL KL LSW LSWE A- A+ GRD DOME FUSE ENGINE ROOM R/B 1 (RIGHT SIDE OF ENGINE COMPT) P FR FUSE EXTERIOR LIGHTS SYSTEM HORNS SYSTEM FRONT PASSENGER DOOR ECU (IN PASSENGER'S DOOR) FUSE GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES IND HAZ HORN HCTY TKUL TR+ LGCY GSW J/C 14 (BEHIND LEFT SIDE OF DASH) J/C 22 (UNDER RIGHT "C" PILLAR) JUNCTION CONNECTOR J/C 15 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR J/C 17 (UPPER RIGHT END OF DASH) LOCK LOCK DETECT LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) P RR DOOR FUSE PASSENGER SIDE JUNCTION BLOCK (BEHIND LOWER RIGHT END OF DASH) PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE PPL RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR COURTESY SWITCH RIGHT FRONT DOOR LOCK CONTROL SWITCH SECURITY INDICATOR (RHEOSTAT) UNLK UNLK LOCK VIO WIRE VIO/GRN WIRE WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE WHT/GRN WIRE

8 6 BECU TRLY BDR SIG CPUB BLK/ WHT WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BODY ECU 2 COMPUTER DATA LINES SYSTEM D FR DOOR FUSE D RR DOOR FUSE DASH HARN, BEHIND COMBINATION METER) DOOR DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE JUNCTION BLOCK (BEHIND LEFT KICK PANEL) ECU-IG FUSE ENGINE ROOM R/B NO. 1 (RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) GRD GRD CTYE CTY CTYB CTY GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN OR ACC HOT IN RUN OR START HRLY ILE IF HEADLIGHTS SYSTEM IGNITION KEY CYLINDER LIGHT JUNCTION CONNECTOR J/C 10 (BEHIND LEFT END OF DASH) JUNCTION CONNECTOR J/C 13 (BEHIND COMBINATION METER) JUNCTION CONNECTOR J/C 6 (LEFT KICK PANEL) JUNCTION CONNECTOR J/C 7 (LEFT KICK PANEL) JUNCTION CONNECTOR J/C 8 (BEHIND LEFT KICK PANEL) LEFT FRONT DOOR COURTESY LIGHT LEFT FRONT DOOR COURTESY SWITCH LEFT STEP LIGHT RIGHT STEP LIGHT ORG/ WIRE PASSENGER SIDE JUNCTION BLOCK (BEHIND RIGHT KICK PANEL) PERSONAL LIGHT RADIO 2 FUSE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE WHT WIRE WHT/BLK WIRE

+B +BM MREL STI- IGSW 1 2 4 5 6 7 13 14 17 EOM EC BATT 3 4 13 20 26 27 31 32 33 34 35 TC STP A/T INDICATOR LIGHT SWITCH ACCEL PEDAL POSITION SENSOR (BEHIND LEFT SIDE OF DASH) BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH CRUISE IND DRIVER SIDE J/B DRIVER SIDE JUNCTION BLOCK EC (REAR OF RIGHT CYLINDER HEAD) ED (REAR OF LEFT CYLINDER HEAD) EE (UNDER ABS/TRAC/ VSC ACTUATOR) EFI RELAY ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT, IN ECU BOX) ENGINE ROOM RELAY BLOCK 1 EPTK VPTK CCS ETA VC ETCS FUSE EFI FUSE GAUGE FUSE GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IGN FUSE II (UPPER RIGHT SIDE OF DASH) J/C 11 (LEFT SIDE OF DASH) J/C 14 (BEHIND LEFT SIDE OF DASH) J/C 17 (BEHIND RIGHT SIDE OF DASH) J/C 26 (IN ECU BOX) J/C 27 (BEHIND LEFT KICK PANEL) J/C 3 (IN ECU BOX) J/C 4 J/C 4 (IN ECU BOX) J/C 5 (IN ENGINE ROOM RELAY BLOCK 2) J/C 7 (BEHIND LEFT KICK PANEL) J/C 9 (BEHIND LEFT SIDE OF DASH) M- M+ MAIN ORG/ WIRE PNK/BLK WIRE RED WIRE RED/BLU WIRE RED/YEL WIRE RES+ SET/ COAST SHIELD STOP FUSE STOPLIGHT SWITCH (ON BRAKE PEDAL BRACKET) THROTTLE CONTROL MOTOR (ON THROTTLE BODY) THROTTLE POSITION SENSOR (ON THROTTLE BODY) VIO WIRE VIO/YEL WIRE VPA EPA VCPA WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

2 3 9 18 SIG CPUB 3 12 2 CLTS CLTE CLTB 3 15 2 AUTO HEAD TAIL 9 19 HRLY HEADLIGHTS SYSTEM AUTOMATIC LIGHT CONTROL SENSOR (BEHIND UPPER LEFT SIDE OF DASH) BDR BLK WIRE BLK/ WHT WIRE BLK/RED WIRE BLU/BLK WIRE BLU/ORG WIRE BODY ECU 2 (IN DRIVER SIDE J/B) COMPUTER DATA LINES SYSTEM CTY CTYE D FR DOOR FUSE DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) EB (LEFT FRONT STRUT TOWER) EB (RIGHT FRONT STRUT TOWER) ECU-IG FUSE ENGINE ROOM R/B 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) GRD GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY/RED WIRE HEADLIGHT SWITCH HOT AT ALL TIMES HOT IN RUN OR START II (UPPER RIGHT SIDE OF DASH) JUNCTION CONNECTOR J/C 10 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR J/C 14 (LEFT SIDE OF DASH) JUNCTION CONNECTOR J/C 17 (BEHIND UPPER RIGHT SIDE OF DASH) JUNCTION CONNECTOR J/C 19 (ABOVE LEFT REAR WHEEL- WELL) JUNCTION CONNECTOR J/C 20 (LEFT REAR WHEELWELL) JUNCTION CONNECTOR J/C 6 (LEFT KICK PANEL) JUNCTION CONNECTOR J/C 7 (LEFT KICK PANEL) LEFT FRONT DOOR COURTESY SWITCH LEFT FRONT SIDE MARKER LIGHT LEFT LICENSE PLATE LIGHT LEFT PARKING LIGHT MPX-B FUSE ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) RED WIRE RED/BLK WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT SIDE MARKER LIGHT RIGHT LICENSE PLATE LIGHT RIGHT PARKING LIGHT STOP FUSE STOPLIGHT SWITCH (BRAKE PEDAL BRACKET) TAIL HEAD AUTO OFF VIO/RED WIRE WHT WIRE WHT/BLK WIRE

1 17 3 15 2 COMPUTER DATA LINES SYSTEM GSWO FFOG AUTO HEAD TAIL 11 3 12 2 GRD CLTS CLTE CLTB 14 15 CTYE CTY 2 3 9 SIG CPUB 5 1 FFGO IG ALTL AUTOMATIC LIGHT CONTROL SENSOR (BEHIND UPPER LEFT SIDE OF DASH) BECU TRLY BLK WIRE BLK/ WHT WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BODY ECU 2 (IN DRIVER SIDE J/B) COMBINATION SWITCH COMPUTER DATA LINES SYSTEM D FR FUSE DASH HARN, BEHIND COMBINATION METER) DIMMER SWITCH DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) EA (RIGHT FRONT STRUT TOWER) ECU-IG FUSE ENGINE ROOM R/B 1 (ON RIGHT SIDE OF ENGINE COMPARTMENT, BEHIND STRUT TOWER) FOG RELAY FOGLIGHT SWITCH FR FOG FUSE FUSE GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY/RED WIRE HEADLIGHT SWITCH HOT AT ALL TIMES HOT IN START OR RUN HOT IN START OR RUN DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) OF DASH) GAUGE FUSE JUNCTION CONNECTOR J/C 10 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR J/C 17 (UPPER RIGHT END OF DASH) JUNCTION CONNECTOR J/C 6 (LEFT KICK PANEL) JUNCTION CONNECTOR J/C 7 (LEFT KICK PANEL) LEFT FRONT DOOR COURTESY SWITCH LEFT FRONT FOGLIGHT OFF ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT FOGLIGHT SRS-B FUSE TAIL HEAD AUTO WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL/RED WIRE

+ECU 1 16 9 18 BDR MSWE MR+ MR- 1 9 18 BDR MR+ MR- 2 12 3 1 7 8 10 13 16 SIG PVC CPUB VSSR PM+R PMVR HSSR 6 7 8 MIRE MIRS MIRB 9 15 14 4 2 12 3 1 7 8 10 13 16 PNK WIRE BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BODY ECU 1 BODY ECU 2 BRN WIRE BRN/BLK WIRE BRN/WHT WIRE BSUB COMPUTER DATA LINES SYSTEM D FR FUSE DMHR DOWN SELECT SWITCH LH DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVING POSITION MEMORY SWITCH DVC ECU-IG FUSE ENGINE ROOM R/B 1 (RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) FRONT PASSENGER DOOR ECU (IN RIGHT FRONT DOOR) FUSE GRN/BLK WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START HOT IN RUN OR ACCY HSR II (UPPER RIGHT SIDE OF DASH) J/C 10 (BEHIND LEFT SIDE OF DASH) J/C 15 (LEFT SIDE OF DASH) J/C 17 (UPPER RIGHT SIDE OF DASH) J/C 6 (LEFT KICK PANEL) J/C 7 (LEFT KICK PANEL) LEFT LEFT REMOTE CONTROL MIRROR LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MEM 2 PNK MEM 1 WIRE MIRROR RETRACTION SWITCH MM SIG GND CPUB VSSR DM+R DMVR HSSR OPERATION SWITCH ORG/ WIRE P FR FUSE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PMHR PNK/BLK WIRE PNK/GRN WIRE PVC RADIO 2 FUSE RED WIRE RED/GRN WIRE REMOTE CONTROL MIRROR SWITCH RET RIGHT RIGHT REMOTE CONTROL MIRROR SET- VIO WIRE VSR WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 ECUE IG VC GND ECUB 1 2 3 4 5 6 7 8 9 10 RCL- RCL+ SLD- SLD+ LFT- LFT+ GND +B FRV- FRV+ 1 2 3 4 5 6 POWER TILT MOTOR BJ (UNDER LEFT C-PILLAR) BLK WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM D P/SEAT FUSE DOWN DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER'S SEAT FRONT VERTICAL MOTOR DRIVER'S SEAT LUMBAR SUPPORT CONTROL MOTOR DRIVER'S SEAT REAR VERTICAL MOTOR DRIVER'S SEAT RECLINING MOTOR DRIVER'S SEAT SLIDING MOTOR FRONT FRONT VERTICAL CONTROL SENSOR FUSE GRN/WHT WIRE HOT AT ALL TIMES J/C 18 (RIGHT KICK PANEL) J/C 20 (ABOVE LEFT REAR WHEELWELL) J/C 23 (BELOW DRIVER'S SEAT) J/C 6 (LEFT KICK PANEL) LT GRN WIRE LT GRN/RED WIRE LUMBAR SUPPORT CONTROL SWITCH MSW ORG/ WIRE P-P/SEAT FUSE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) POWER SEAT CONTROL SWITCH POWER SEAT ECU (UNDER DRIVER'S SEAT) POWER TELESCOPIC MOTOR RCLF RCLR REAR REAR VERTICAL CONTROL SENSOR RECLINE CONTROL SENSOR RED/BLU WIRE SGND SSRS SLDF SLDR LUP LDWN FUP SLIDE CONTROL SENSOR SSFV SSRL SSRR PVCC FDWN IG SYSB TEL LNG TILT UP TEL SHRT TILT DOWN TILT, TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) TILT, TELESCOPIC SWITCH TIM- TIM+ TEM- TEM+ VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

BLK WIRE BLK/ WHT WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG (OR BLK) WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU 2 CIG FUSE CIGARETTE LIGHTER COMPUTER DATA LINES SYSTEM D FR DOOR FUSE D P/SEAT FUSE D RR DOOR FUSE DEFOGGERS, AIR CONDITIONING SYSTEMS DRIVER DOOR ECU ECU-IG FUSE ENGINE ROOM R/B 1 (DIAGRAM 1 OF 2) FOG RELAY FR FOG FUSE FROM FROM ENGINE ROOM R/B 1 (DIAGRAM 1 OF 2) FUEL OPN FUSE FUSE GRN WIRE GRY WIRE HEATER FUSE IGN FUSE IGNITION SWITCH II (UPPER RIGHT SIDE OF DASH) INSTRUMENT CLUSTER, SUPPLEMENTAL RESTRAINTS, HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS J/C 12 (BEHIND LEFT SIDE OF DASH) J/C 15 (BEHIND LEFT SIDE OF DASH) J/C 17 (BEHIND UPPER RIGHT SIDE OF DASH) LEFT REAR DOOR ECU LOCK LT GRN WIRE OBD FUSE PANEL FUSE PNK WIRE POWER OUTLET RADIO 2 FUSE RED/BLU WIRE SEATS, MEMORY SYSTEMS SRS-B FUSE STARTER FUSE STARTING/ CHARGING, ENGINE CONTROLS SYSTEM STOP FUSE TAIL FUSE TAIL RELAY TRUNK, TAILGATE, FUEL DOORS SYSTEM WASHER FUSE GAUGE FUSE WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE WIPER FUSE WIPER/ WASHER SYSTEMS

1 2 3 4 5 6 7 8 9 10 ECUE IG VC GND ECUB BDR BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BODY ECU 1 BODY ECU 2 COMBINATION SWITCH COMPUTER DATA LINES SYSTEM D FR FUSE DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ECU-IG FUSE ENGINE ROOM NO.1 R/B (ON RIGHT SIDE OF ENG COMPT, BEHIND STRUT TOWER) FUSE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACCY OR RUN J/C 10 (LEFT SIDE OF DASH) J/C 13 (LEFT SIDE OF DASH) J/C 15 (BEHIND LEFT SIDE OF DASH) J/C 6 (BEHIND LEFT KICK PANEL) J/C 7 (BEHIND LEFT KICK PANEL) MSW P-P/SEAT FUSE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) POWER TELESCOPIC MOTOR POWER TILT MOTOR RADIO 2 FUSE RED/BLU WIRE SIG CPUB GND TELESCO LONG TELESCO SHORT TILT DOWN TILT UP TILT, TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) TILT, TELESCOPIC SWITCH TIM- TIM+ TEM- TEM+ WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE

+B +BM STI- A/C SYSTEM A/T SHIFT MAIN SWITCH (INTEGRAL TO COMBINATION SWITCH) ABS, TRAC, VSC ECU (BEHIND LEFT SIDE OF DASH) ACCELERATOR PEDAL POSITION SENSOR (ON RIGHT REAR SIDE OF ENGINE) ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM (SECURITY INDICATOR) BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BRAIDED BRAIDED BRAIDED 18 19 20 21 22 23 BRN WIRE CODE COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DATA LINK CONNECTOR 3 (BELOW LEFT SIDE OF DASH) EB (LEFT FRONT STRUT TOWER) ECT PWR. ECT SNOW ENG ENGINE CONTROL MODULE (ECM) (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/RED WIRE IMLD CODE J/C 9 (BEHIND LEFT SIDE OF DASH) KSW STA MREL FPC DI ACMG IGSW TAM LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MIL IND NEO NEO TBP PNK TRC+ ENG+ WIRE PNK WIRE PNK/BLK WIRE PRE SIL PTNK RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RXCK SFTD SFTU SIL TACHOMETER TC STP SFTD SFTU TRC+ TRC- ENG- CCS TXCT VAPOR PRESSURE SENSOR (UNDER LEFT REAR OF VEHICLE) VCC VIO WIRE VIO/YEL WIRE WFSE TXCT RXCK PTNK WHT WIRE WHT/BLK WIRE WHT/RED WIRE WSFE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE