Lexus GS II (1997-2000) body ecu 1 Wiring diagrams

3 4 1 GAS IG GND A.C SINGLE PRESSURE SWITCH (LEFT SIDE OF RADIATOR GRILLE) A/C AMBIENT TEMPERATURE SENSOR (LEFT SIDE OF RADIATOR GRILLE) A/C COMPRESSOR RELAY A/C CONDENSER FAN MOTOR A/C MAGNETIC CLUTCH, LOCK SENSOR (LEFT FRONT OF ENGINE) AIR MIX CONTROL SERVO MOTOR (FRONT PASSENGER SIDE) (CENTER OF DASH) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/YEL WIRE BLOWER MOTOR (RIGHT SIDE OF DASH) BLOWER MOTOR CONTROLLER (CENTER OF DASH) BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BODY ECU 1 BRN WIRE CDS FAN FUSE RDI FAN FUSE DRIVER SIDE J/B (LEFT KICK PANEL) IGN FUSE ENGINE ROOM 1 R/B (RIGHT SIDE OF ENGINE COMPARTMENT) ENGINE ROOM 3 R/B (LEFT SIDE OF ENGINE COMPARTMENT) EXHAUST GAS SENSOR (LEFT SIDE OF RADIATOR GRILLE) FAN 1 RELAY ENGINE ROOM 3 R/B (LEFT SIDE OF ENGINE COMPARTMENT) FAN 2 RELAY FAN 3 RELAY GND SI B+ GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START HTR RELAY J/C 13 (BEHIND LEFT SIDE OF DASH) J/C 14 (BEHIND LEFT SIDE OF DASH) J/C 17 (TOP RIGHT SIDE OF DASH) J/C 2 (LEFT SIDE OF ENGINE COMPARTMENT, IN ECU BOX) LT GRN/RED WIRE M- M+ ORG/ WIRE PASSENGER J/B (RIGHT KICK PANEL) PASSENGER SIDE R/B (RIGHT KICK PANEL) RADIATOR FAN MOTOR RED WIRE RED/BLU WIRE VIO WIRE WATER TEMPERATURE SWITCH (LEFT SIDE OF RADIATOR GRILLE) WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE

5 2 11 PWS SH GRD BDR BLK/ WHT WIRE 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 COMBINATION METER COMPUTER DATA LINES SYSTEM CPUB SIG CTY CTYE ML MUL DLE KUL KL LSW LSWE A- A+ GRD DOME FUSE ENGINE CONTROL SYSTEM EXTERIOR LIGHTS SYSTEM HORNS SYSTEM FRONT PASSENGER DOOR ECU (IN PASSENGER'S DOOR) 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 JUNCTION CONENCTOR J/C 6 (LEFT KICK PANEL) JUNCTION CONNECTOR J/C 14 (BEHIND LEFT SIDE OF DASH) 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 P FR DOOR FUSE P RR DOOR FUSE PASSENGER SIDE JUNCTION BLOCK (BEHIND LOWER RIGHT END OF DASH) PASSENGER SIDE JUNCTION BLOCK (BEHIND RIGHT KICK PANEL) 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) THEFT DETERRENT HORN (AT RIGHT FRONT OF ENGINE COMPT) UNLK UNLK LOCK VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE

1 2 3 IG SH HR BSUB PWS 10 11 12 NOT USED GRD NOT USED 7 8 NOT USED BECU BLK/BLU WIRE BLK/RED WIRE BLU WIRE BLU/ORG WIRE BLU/YEL WIRE BODY ECU 1 BZR DATA LINK CONNECTOR 3 DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE JUNCTION BLOCK (BEHIND LOWER LEFT END OF DASH) ENGINE HOOD COURTESY SWITCH LUGGAGE COMPARTMENT COURTESY SWITCH ENGINE ROOM RELAY BLOCK 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) FRONT PASSENGER DOOR ECU (IN PASSENGER'S DOOR) GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HCTY LGCY HORN RELAY LUGGAGE COMPARTMENT OPENER MOTOR HORN TR+ GSW RSSI RCO RDA HOT AT ALL TIMES HOT IN ACC OR RUN JUNCTION CONNECTOR J/C 13 (BEHIND COMBINATION METER) LEFT REAR DOOR ECU (IN LEFT REAR DOOR LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MIR RELAY DFG MOON ROOF CONTROL ECU MPX-B FUSE ORG/ WIRE P FR DOOR FUSE PARKING BRAKE SWITCH (BEHIND LEFT SIDE OF DASH) PASSENGER SIDE JUNCTION BLOCK (BEHIND LOWER RIGHT END OF DASH) PKB IND PWR SNOW HAZ PPL PNK WIRE PNK/BLK WIRE PNK/BLU WIRE POWER SEAT ECU (UNDER DRIVER'S SEAT) PPL PPL/GRN WIRE PPL/YEL WIRE RADIO 2 FUSE RED/WHT WIRE RED/YEL WIRE RIGHT REAR DOOR ECU (IN RIGHT REAR DOOR) TKUL TSW PBKL W/ MEMORY SEAT W/O MEMORY SEAT WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WIRELESS DOOR LOCK BUZZER WIRELESS DOOR LOCK BUZZER WIRELESS DOOR LOCK ECU WIRELESS DOOR LOCK ECU WIRELESS DOOR LOCK ECU YEL/BLK WIRE

3 4 TC TS 5 25 WA D/G A/C CONTROL ASSEMBLY ABS, TRAC, VSC ECU (BEHIND LEFT SIDE OF DASH) ANTI-LOCK BRAKE SYSTEM (ABS SOL RELAY) BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BODY ECU 1 BODY ECU 2 BRN WIRE CENTER AIR BAG SENSOR ASSEMBLY (BEHIND CENTER OF DASH) CG SG COMBINATION METER DATA LINK CONNECTOR 1 (LEFT SIDE OF ENGINE COMPT) DATA LINK CONNECTOR 3 (BEHIND LEFT SIDE OF DASH) DRIVER DOOR ECU DRIVER SIDE J/B ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS SYSTEM (EFI RELAY) FRONT PASSENGER DOOR ECU G131 (3.0L) (FRONT OF INTAKE MANIFOLD) GRY WIRE HOT AT ALL TIMES J/C 10 (UPEER LEFT END OF DASH) J/C 14 (BEHIND LEFT SIDE OF DASH) LEFT REAR DOOR ECU LT GRN WIRE LT GRN/BLK WIRE MOON ROOF CONTROL ECU (FRONT OF MOON ROOF OPENING) MPX MULTI-DISPLAY NCA WIRE OBD FUSE ORG/ WIRE PASSENGER SIDE J/B PNK/BLK WIRE POWER SEAT ECU (UNDER DRIVER'S SEAT) RIGHT REAR DOOR ECU SIL TC +B TILT AND TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) W/ MEMORY W/ NAVIGATION W/O MEMORY W/O NAVIGATION WA WB WHT (OR BLU/RED) WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL/GRN (OR PNK) WIRE

BDR BLK/RED WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BODY ECU 1 BSUB BZR RSSI RDA RCO CPUB SIG CTY CTYE CTYB CTY GRD DOME FUSE FRONT PASSENGER DOOR ECU (IN RIGHT FRONT DOOR) GRD GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES JUNCTION CONNECTOR J/C 15 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR J/C 17 (UPPER RIGHT END OF DASH) JUNCTION CONNECTOR J/C 22 (ABOVE RIGHT RIGHT WHEELWELL) LT GRN WIRE LT GRN/RED WIRE ORG/ WIRE P FR DOOR FUSE PASSENGER SIDE JUNCTION BLOCK (BEHIND RIGHT KICK PANEL) PASSENGER SIDE JUNCTION BLOCK (BEHIND RIGHT KICK PANEL) P RR DOOR FUSE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR COURTESY LIGHT RIGHT FRONT DOOR COURTESY SWITCH WHT WIRE WHT/BLK WIRE

A/C CONTROL ASSEMBLY HAZARD SWITCH ABS, TRAC, VSC ECU BLK WIRE BLK/ WHT WIRE BLOWER MOTOR CONTROLLER BODY ECU 1 BODY ECU 2 BRAKE FLUID LEVEL WARNING SWITCH CANADA CD AUTOMATIC CHANGER CENTER AIRBAG SENSOR ASSEMBLY CIGARETTE LIGHTER POWER OUTLET CLOCK COMBINATION METER D/A CONVERTER DASH HARN, BEHIND COMBINATION METER) DRIVER SIDE JUNCTION BLOCK (BEHIND LOWER LEFT END OF DASH) ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SWITCH FAN 2 RELAY FAN 3 RELAY FROM FROM JUNCTION CONNECTOR J/C 10 (DIAGRAM 2 OF 4) FRONT PASSENGER DOOR ECU FRONT WIPER MOTOR GARAGE DOOR OPENER GLOVE BOX LIGHT SWITCH HTR RELAY IG RELAY INNER MIRROR INSTRUMENT PANEL JUNCTION BLOCK (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR J/C 17 (UPPER RIGHT END OF DASH) LEFT REAR INTERIOR LIGHT LEFT VANITY LIGHT MOON ROOF CONTROL ECU MOON ROOF CONTROL SWITCH NOISE FILTER PASSENGER SIDE JUNCTION BLOCK (BEHIND LOWER RIGHT END OF DASH) PASSENGER SIDE RELAY BLOCK (BEHIND LOWER RIGHT END OF DASH) PERSONAL LIGHT POWER STEERING OIL PRESSURE SWITCH RADIO AND PLAYER RIGHT MIRROR HEATER RIGHT REAR INTERIOR LIGHT RIGHT VANITY LIGHT SHIFT LOCK CONTROL ECU STEREO COMPONENT AMPLIFIER MULTI- DISPLAY VSC OFF SWITCH W/ MEMORY W/O MEMORY WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE

3.0L 4.0L (UPPER RIGHT SIDE OF DASH) A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) ALT FUSE BLK WIRE BLK/ WHT WIRE BLU WIRE BLU/RED WIRE BODY ECU 1 DRIVER SIDE JUNCTION BLOCK (BEHIND LOWER LEFT END OF DASH) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPARTMENT, IN ECU BOX) ENGINE ROOM RELAY BLOCK 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START J/C 10 (UPPER LEFT END OF DASH) J/C 13 (BEHIND LEFT SIDE OF DASH) J/C 17 (UPPER RIGHT END OF DASH) LEFT REMOTE CONTROL MIRROR HEATER MIR HTR FUSE MIR HTR RELAY MULTI DISPLAY (CENTER OF DASH) RED/ BLU WIRE RED/ WHT WIRE RED/BLU WIRE RIGHT REMOTE CONTROL MIRROR HEATER W/ DRIVING POSITION MEMORY W/O DRIVING POSITION MEMORY WHT RED/ WIRE WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE

5 2 11 PWS SH GRD BDR BLK/ WHT WIRE 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 COMBINATION METER COMPUTER DATA LINES SYSTEM CPUB SIG CTY CTYE ML MUL DLE KUL KL LSW LSWE A- A+ GRD DOME FUSE ENGINE CONTROL SYSTEM EXTERIOR LIGHTS SYSTEM HORNS SYSTEM FRONT PASSENGER DOOR ECU (IN PASSENGER'S DOOR) GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES JUNCTION CONENCTOR J/C 6 (LEFT KICK PANEL) JUNCTION CONNECTOR J/C 14 (BEHIND COMBINATION METER) JUNCTION CONNECTOR J/C 15 (BEHIND COMBINATION METER) 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 P FR DOOR FUSE 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 PPL IND HAZ HORN HCTY TKUL TR+ LGCY GSW PPL/GRN WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR COURTESY SWITCH RIGHT FRONT DOOR LOCK CONTROL SWITCH SECURITY INDICATOR (RHEOSTAT) THEFT DETERRENT HORN (AT RIGHT FRONT OF ENGINE COMPT) UNLK UNLK LOCK WHT WIRE WHT/BLK WIRE WHT/GRN WIRE

1 16 BDR MSWE 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 BDR BLK/ORG WIRE BLK/RED WIRE BLU/BLK WIRE BLU/ORG WIRE BODY ECU 1 BODY ECU 2 BRN WIRE BRN/BLK WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM D FR DOOR FUSE DMHR DOWN SELECT SWITCH LH DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE JUNCTION BLOCK (BEHIND LOWER LEFT END OF DASH) DRIVING POSITION AND MEMORY CONTROL SWITCH DVC ECU-IG FUSE GRN WIRE GRN/WHT WIRE GRY WIRE GSWO HOT AT ALL TIMES HOT IN ACCY OR RUN HOT IN ON OR START HSR J/C 10 (UPPER LEFT END OF DASH) J/C 15 (LEFT SIDE OF DASH) J/C 17 (UPPER RIGHT END OF DASH) J/C 6 (LEFT KICK PANEL) J/C 7 (LEFT KICK PANEL) J/C 8 (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 MM SIG GND CPUB VSSR DM+R DMVR HSSR MPX-B FUSE OPERATION SWITCH ORG/ WIRE P FR DOOR FUSE PASSENGER DOOR ECU (IN RIGHT FRONT DOOR) PASSENGER JUNCTION BLOCK (BEHIND LOWER RIGHT END OF DASH) PMHR PNK/BLK WIRE PVC RADIO 2 FUSE RED WIRE RED/BLU WIRE REMOTE CONTROL MIRROR SWITCH RIGHT RIGHT REMOTE CONTROL MIRROR SET- VIO WIRE VSR WHT WIRE WHT/BLK WIRE YEL/RED WIRE

3.0L, 4.0L A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BODY ECU 1 DEF RELAY (IN PASSENGER SIDE RELAY BLOCK) DEFOG FUSE DRIVER SIDE JUNCTION BLOCK (BEHIND LOWER LEFT END OF DASH) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPARTMENT, IN ECU BOX) HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START J/C 13 (BEHIND LEFT SIDE OF DASH) MULTI DISPLAY (CENTER OF DASH) NOISE FILTER PASSENGER SIDE JUNCTION BLOCK (BEHIND LOWER RIGHT END OF DASH) REAR WINDOW DEFOGGER RED WIRE RED/BLU WIRE WHT WIRE WHT/BLK WIRE