Lexus GS II (1997-2000) body ecu 2 Wiring diagrams

4 3 (1998-99) (2000) BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BODY ECU 2 BRAIDED BRAKE FLUID LEVEL WARNING SWITCH (IN BRAKE FLUID RESERVOIR) BRN WIRE C (OR B) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/C (BEHIND LEFT KICK PANEL) ECU-IG FUSE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START JUNCTION CONNECTOR J/C 1 (UNDER ECU BOX) JUNCTION CONNECTOR J/C 10 (UPPER LEFT END OF DASH) JUNCTION CONNECTOR J/C 15 (BEHIND COMBINATION METER) JUNCTION CONNECTOR J/C 3, J/C 4 (UNDER ECU BOX) JUNCTION CONNECTOR J/C 6 (LEFT KICK PANEL) JUNCTION CONNECTOR J/C 7 (LEFT KICK PANEL) JUNCTION CONNECTOR J/C 9 (UPPER LEFT END OF DASH) LEFT FRONT ABS SPEED SENSOR (LEFT FRONT WHEEL ASSEMBLY) LT GRN WIRE LT GRN/BLK WIRE MASTER CYLINDER PRESSURE SENSOR (AT LEFT REAR CORNER OF ENGINE COMPARTMENT) PARK/NEUTRAL POSITION SWITCH (ON TRANSMISSION) PNK WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RIGHT FRONT ABS SPEED SENSOR (RIGHT FRONT WHEEL ASSEMBLY) STEERING SENSOR (COMBINATION SWITCH) STOP FUSE STOPLIGHT SWITCH (ON BRAKE PEDAL BRACKET) VSC OFF SWITCH VSC WARNING BUZZER (BEHIND LEFT SIDE OF DASH) WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE

8 6 11 BECU TRLY GRD BDR SIG CPUB BLK/ WHT WIRE BLK/RED WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BODY ECU 2 BRN/BLK WIRE COMPUTER DATA LINES SYSTEM D FR DOOR FUSE D RR DOOR FUSE DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE JUNCTION BLOCK (BEHIND LEFT KICK PANEL) ECU-IG FUSE GRD CTYE CTY A- A+ LSWE LSW KUL KL PWE MUL ML GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GSWO HEADLIGHTS SYSTEM INTERIOR LIGHTS SYSTEM HOT AT ALL TIMES HOT IN ACCY OR RUN HOT IN RUN OR START HRLY ILE JUNCTION CONNECTOR J/C 10 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR J/C 13 (BEHIND LEFT SIDE OF DASH) 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 DOOR LOCK CONTROL SWITCH (POWER WINDOW MASTER SWITCH) LEFT FRONT DOOR COURTESY SWITCH LOCK DETECT LT GRN/BLK WIRE LT GRN/RED WIRE ORG/ WIRE PNK/BLK WIRE PNK/GRN WIRE RADIO 2 FUSE RED/GRN WIRE RED/YEL WIRE UNLK LOCK WHT WIRE WHT/BLK WIRE

3.0L, 4.0L 6 7 8 9 10 11 12 TRLY DBKL BECU A/C CONTROL ASSEMBLY BLK/ WHT WIRE BLK/BLU WIRE BLK/RED WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BODY ECU 2 BRAKE FLUID LEVEL WARNING SWITCH (IN BRAKE FLUID RESERVOIR) BRN/BLK WIRE COMBINATION METER DRIVER SIDE JUNCTION BLOCK (BEHIND LOWER LEFT END OF DASH) ECU-IG FUSE ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) FFOG GSW FOG LIGHT SWITCH CENTER AIRBAG SENSOR FOG RELAY FFGO GRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/RED WIRE GSWO TAIL AUTO LF KSW MIRE MIRS MIRB HRLY ALTL ACAN HEAD LP RELAY MAIN DRL RELAY CLOCK HEADLIGHT SWITCH HEADLIGHT SWITCH LAMP FAILURE MODULE HOT IN RUN OR START IG CLTB CLTS BLVL ILE STPI HEAD INTERIOR LIGHTS STOP LIGHT SWITCH HEADLIGHT SWITCH JUNCTION CONNECTOR J/C 10 (UPPER LEFT END OF DASH) JUNCTION CONNECTOR J/C 15 (BEHIND COMBINATION METER) JUNCTION CONNECTOR J/C 6 (LEFT KICK PANEL) JUNCTION CONNECTOR J/C 9 (UPPER LEFT END OF DASH) LEFT FRONT STRUT TOWER) LIGHT CONTROL SENSOR LIGHT CONTROL SENSOR LIGHT CONTROL SENSOR LT GRN/BLK WIRE MPX MULTI-DISPLAY NOT USED GRD CLTE ORG/ WIRE PPL PPL/RED WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/YEL WIRE REMOTE CONTROL MIRROR SWITCH SHIFT LOCK CONTROL ECU SHIFT LOCK CONTROL ECU SLCK TAIL RELAY LEFT BUCKLE SWITCH TILT, TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) UNLOCK WARNING SWITCH (BEHIND LEFT SIDE OF DASH) WHT (OR BLU/RED) WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/RED 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

8 6 BECU TRLY BDR SIG CPUB BLK/ WHT WIRE BLK/RED 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 GRD GRD CTYE CTY CTYB CTY GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GSWO HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN RUN OR ACC HOT IN RUN OR START HRLY ILE 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 ORG/ WIRE PASSENGER SIDE JUNCTION BLOCK (BEHIND RIGHT KICK PANEL) PERSONAL LIGHT RADIO 2 FUSE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT STEP LIGHT WHT WIRE WHT/BLK WIRE

AUTO AUTOMATIC LIGHT CONTROL SENSOR (BEHIND UPPER LEFT SIDE OF DASH) BECU TRLY GRD CLTS CLTE CLTB BLK/ WHT WIRE BLK/RED WIRE BLU/BLK WIRE BLU/ORG WIRE BODY ECU 2 COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM GSWO AUTO HEAD TAIL CPUB CTYE BDR SIG CTY D FR DOOR FUSE DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE JUNCTION BLOCK (BEHIND LOWER LEFT END OF DASH) ECU-IG FUSE ENGINE ROOM RELAY BLOCK 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY/RED WIRE HEADLIGHT SWITCH HOT AT ALL TIMES HOT IN RUN OR START HRLY HEADLIGHTS SYSTEM JUNCTION CONNECTOR J/C 10 (UPPER LEFT END OF DASH) JUNCTION CONNECTOR J/C 14 (BEHIND COMBINATION METER) JUNCTION CONNECTOR J/C 19 (TOP OF LEFT REAR WHEEL- WELL) 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 JUNCTION BLOCK (BEHIND LOWER RIGHT END OF DASH) PPL/RED WIRE 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 TAIL HEAD AUTO OFF OFF WHT WIRE WHT/ BLK 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

5 1 FFGO IG BECU TRLY GRD CLTS CLTE CLTB BLK/ WHT WIRE BLK/RED WIRE BLU RED/ WIRE BLU/BLK WIRE BLU/ORG WIRE BODY ECU 2 COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM GSWO FFOG AUTO HEAD TAIL CTY D FR DOOR FUSE DIMMER SWITCH DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE JUNCTION BLOCK (BEHIND LOWER LEFT END OF DASH) ECU-IG FUSE ENGINE ROOM RELAY BLOCK 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) FOG LIGHTS FOG RELAY FOGLIGHT SWITCH FR FOG FUSE GAUGE FUSE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY/RED WIRE HEADLIGHT SWITCH HIGH LOW HOT AT ALL TIMES HOT IN START OR RUN HRLY ALTL JUNCTION CONNECTOR J/C 17 (UPPER RIGHT END OF DASH) JUNCTION CONNECTOR J/C 6 (LEFT KICK PANEL) LEFT FRONT DOOR COURTESY SWITCH LEFT FRONT FOG LIGHT LEFT FRONT STRUT TOWER) MPX-B FUSE ORG/ WIRE PASSENGER SIDE JUNCTION BLOCK (BEHIND LOWER RIGHT END OF DASH) RED WIRE RED/ BLU WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT FOG LIGHT SIG BDR CPUB CTYE TAIL HEAD AUTO OFF TAIL OFF AUTO WHT GRN/ WIRE WHT/BLK WIRE WHT/BLU WIRE YEL/RED WIRE

5 1 FFGO IG AUTOMATIC LIGHT CONTROL SENSOR (BEHIND UPPER LEFT SIDE OF DASH) BECU TRLY GRD CLTS CLTE CLTB BLK/ WHT WIRE BLK/RED WIRE BLU/BLK WIRE BLU/ORG WIRE BODY ECU 2 COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM GSWO FFOG AUTO HEAD TAIL CTY D FR DOOR FUSE DIMMER SWITCH DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE JUNCTION BLOCK (BEHIND LOWER LEFT END OF DASH) ECU-IG FUSE ENGINE ROOM RELAY BLOCK 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) FLASH TAIL FOG LIGHTS FOG RELAY FOGLIGHT SWITCH FR FOG FUSE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY/RED WIRE HEADLIGHT SWITCH HIGH AUTO LOW HOT AT ALL TIMES HOT IN RUN OR START JUNCTION CONNECTOR J/C 10 (UPPER LEFT END OF DASH) JUNCTION CONNECTOR J/C 6 (LEFT KICK PANEL) LEFT FRONT DOOR COURTESY SWITCH LEFT FRONT FOG LIGHT LEFT FRONT STRUT TOWER) MPX-B FUSE ORG/ WIRE PASSENGER SIDE JUNCTION BLOCK (BEHIND LOWER RIGHT END OF DASH) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT FOG LIGHT SIG BDR CPUB CTYE TAIL HEAD AUTO OFF OFF WHT GRN/ WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE

1 2 3 4 5 6 7 8 IG SPDL WNG 1 2 3 4 5 6 7 8 SBF SHF SGF HDLP SBR SHR SGR 8 6 11 3 12 2 BECU TRLY GRD CLTS CLTE CLTB ANTI-LOCK BRAKES SYSTEM AUTO AUTO HEAD TAIL AUTOMATIC LIGHT CONTROL SENSOR (BEHIND UPPER LEFT SIDE OF DASH) BLK/ WHT WIRE BLK/BLU WIRE BLK/RED WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU 2 COMBINATION METER DASH HARN, BEHIND COMBINATION METER) DRIVER SIDE JUNCTION BLOCK (BEHIND LEFT KICK PANEL) ECU-IG FUSE ENGINE ROOM RELAY BLOCK 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) FRONT HEIGHT CONTROL SENSOR (FORWARD OF LEFT FRONT STRUT TOWER) GAUGE FUSE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/RED WIRE HEAD TAIL AUTO OFF HEADLIGHT BEAM LEVEL CONTROL ECU (AT LEFT FRONT OF ENGINE COMPT) HEADLIGHT BEAM LEVEL CONTROL WARNING INDICATOR HEADLIGHT SWITCH HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN START OR RUN JUNCTION CONNECTOR J/C 10 (UPPER LEFT END OF DASH) JUNCTION CONNECTOR J/C 6 (LEFT KICK PANEL) JUNCTION CONNECTOR J/C 7 (LEFT KICK PANEL) LEFT FRONT STRUT TOWER) LEFT HEADLIGHT BEAM LEVEL CONTROL MOTOR MPX-B FUSE PASSENGER SIDE JUNCTION BLOCK (BEHIND RIGHT KICK PANEL) PNK/GRN WIRE REAR HEIGHT CONTROL SENSOR (UNDER LEFT REAR OF VEHICLE) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT HEADLIGHT BEAM LEVEL CONTROL MOTOR (ON HEADLIGHT ASSEMBLY) TAIL OFF WHT/BLK WIRE