Lexus GS II (1997-2000) engine room relay block 1 (on right side of engine compt, behind strut tower) Wiring diagrams

15 14 9 4 5 18 8 13 1 19 17 25 CPUB BDR SIG 15 9 14 4 5 8 18 19 17 1 13 25 CPUB SIG BDR BLK/ WHT WIRE BLK/RED WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BRN/BLK WIRE CTY CTYE LSWE LSW A- A+ GRD CTYE CTY A+ A- LSWE LSW GRD DIODE (LUGGAGE COMPARTMENT DOOR OPEN DETECTION) (AT LEFT SIDE OF LUGGAGE COMPT) ENGINE HOOD COURTESY SWITCH ENGINE ROOM RELAY BLOCK 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) GRD GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES JUNCTION CONNECTOR J/C 20 (LEFT QUARTER PANEL) JUNCTION CONNECTOR J/C 22 (UNDER RIGHT C-PILLAR) LEFT FRONT STRUT TOWER) LEFT REAR DOOR COURTESY SWITCH LEFT REAR DOOR ECU (IN LEFT REAR DOOR LEFT REAR DOOR LOCK MOTOR, DOOR LOCK DETECTION SWITCH LOCK DETECT LT GRN/BLK WIRE LUGGAGE COMPARTMENT DOOR COURTESY SWITCH, OPENER MOTOR LUGGAGE COMPARTMENT DOOR KEY UNLOCK SWITCH MPX-B FUSE ORG/ WIRE POWER SEAT ECU (UNDER DRIVER'S SEAT) RED/WHT WIRE RED/YEL WIRE RIGHT REAR DOOR COURTESY SWITCH RIGHT REAR DOOR ECU (IN RIGHT REAR DOOR) RIGHT REAR DOOR LOCK MOTOR, DOOR LOCK DETECTION SWITCH VIO/GRN WIRE W/ MEMORY SEATS W/O MEMORY SEATS W/O MEMORY SEATS W/ MEMORY SEATS WHT/BLK 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

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 LOCK SENSOR ABS, TRAC, VSC ACTUATOR BRN WIRE CRUISE CONTROL SWITCH DATA LINK CONNECTOR 1 DATA LINK CONNECTOR 3 EFI RELAY ENGINE CONTROL MODULE ENGINE MAIN RELAY ENGINE ROOM RELAY BLOCK 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) HEATED OXYGEN SENSOR (BANK 1, SENSOR 2) ENGINE OIL LIFE SENSOR HEATED OXYGEN SENSOR BANK 1 SENSOR 1 HEATED OXYGEN SENSOR BANK 2 SENSOR 1 HEATED OXYGEN SENSOR BANK 1 SENSOR 2 HEATED OXYGEN SENSOR BANK 2 SENSOR 2 IGNITER IGNITION COIL, IGNITER 1 IGNITION COIL, IGNITER 2 IGNITION COIL, IGNITER 3 IGNITION COIL, IGNITER 4 IGNITION COIL, IGNITER 5 IGNITION COIL, IGNITER 6 IGNITION COIL, IGNITER 7 IGNITION COIL, IGNITER 8 JUNCTION CONNECTOR J/C 2 (UNDER ECU BOX) JUNCTION CONNECTOR J/C 4 (UNDER ECU BOX) JUNCTION CONNECTOR J/C 5 (LEFT REAR CORNER OF ENGINE COMPT) JUNCTION CONNECTOR J/C 9 (UPPER LEFT END OF DASH) NCA WIRE RIGHT FRONT FOG LIGHT RIGHT FRONT SIDE MARKER LIGHT RIGHT FRONT TURN SIGNAL LIGHT RIGHT HEADLIGHT CONTROL ECU RIGHT LOW BEAM HEADLIGHT RIGHT PARKING LIGHT STARTER RELAY W/ HID W/O HID 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

BLU/RED WIRE COMBINATION METER DAYTIME RUNNING LIGHT RELAY 3, 4 (AT LEFT FRONT CORNER OF ENGINE COMPT) DIMMER DRL 2 RELAY DRL 1 FUSE DRL 2 FUSE ENGINE ROOM RELAY BLOCK 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) ENGINE ROOM RELAY BLOCK 3 (ON LEFT SIDE OF ENGINE COMPT, FRONT OF STRUT TOWER) FUSE HEAD LP RELAY HEADLIGHTS SYSTEM (HEADLIGHT BEAM LEVEL CONTROL ECU) HI BEAM INDIC HOT AT ALL TIMES JUNCTION CONNECTOR J/C 11 (BEHIND COMBO METER) JUNCTION CONNECTOR J/C 14 (BEHIND COMBINATION METER) JUNCTION CONNECTOR J/C 15 (BEHIND COMBO METER) JUNCTION CONNECTOR J/C 18 (RIGHT KICK PANEL) LEFT FRONT STRUT TOWER) LEFT HIGH BEAM HEADLIGHT LEFT LOW BEAM HEADLIGHT LEFT LOWER HEAD FUSE LEFT UPPER HEAD FUSE MAIN DAYTIME RUNNING LIGHT RELAY (BEHIND RIGHT END OF DASH) MAIN FUSE PARKING BRAKE SWITCH (BEHIND LEFT SIDE OF DASH) PASSENGER SIDE JUNCTION BLOCK (BEHIND LOWER RIGHT END OF DASH) PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT HIGH BEAM HEADLIGHT RIGHT LOW BEAM HEADLIGHT RIGHT LOWER HEAD FUSE RIGHT UPPER HEAD FUSE WHT RED/ WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/BLK 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

BLU/BLK WIRE COMBINATION METER DRIVER SIDE JUNCTION BLOCK (BEHIND LOWER LEFT END OF DASH) ENGINE ROOM RELAY BLOCK 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) ENGINE ROOM RELAY BLOCK 3 (ON LEFT SIDE OF ENGINE COMPT, FRONT OF STRUT TOWER) HEAD LP RELAY HEADLIGHTS SYSTEM (HEADLIGHT BEAM LEVEL CONTROL ECU) HI BEAM INDIC HOT AT ALL TIMES JUNCTION CONNECTOR J/C 14 (BEHIND COMBINATION METER) JUNCTION CONNECTOR J/C 15 (BEHIND COMBINATION METER) LEFT FRONT STRUT TOWER) LEFT HIGH BEAM HEADLIGHT LEFT LOW BEAM HEADLIGHT LEFT LOW BEAM HEADLIGHT CONTROL ECU LEFT LOWER HEAD FUSE LEFT UPPER HEAD FUSE MAIN FUSE MPX BUSS PWR PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT HIGH BEAM HEADLIGHT RIGHT LOW BEAM HEADLIGHT RIGHT LOW BEAM HEADLIGHT CONTROL ECU RIGHT LOWER HEAD FUSE RIGHT UPPER HEAD FUSE SRS-B FUSE W/ HID W/O HID W/O HID W/ HID WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL 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

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