Lexus GS III (2004-2007) (in dash harness, behind instrument cluster) Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 B+ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 TSPA TE TPO A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) A/C DUAL PRESSURE SWITCH A/C ROOM TEMPERATURE SENSOR (BEHIND CENTER A/C SOLAR SENSOR (AT UPPER RIGHT SIDE OF DASH) A/C THERMISTOR (BEHIND CENTER OF DASH) AIF AIR MIX CONTROL SERVO MOTOR (DRIVER) (BEHIND CENTER OF DASH) AIR VENT MODE CONTROL SERVO MOTOR (BEHIND RIGHT SIDE OF DASH) AOF AMHDR AMHPA TSDR TPDR TPPA 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/WHT WIRE BRN WIRE DGS BLW MPX+ TPI DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ETAM TAM ACMG PRE FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/RED WIRE GS 430 GS 300 HOT AT ALL TIMES HOT IN ACC OR ON II (AT RIGHT SIDE OF DASH) ILL TR SG-1 MPX- TEL IN SG-4 SG-3 ILL AIR GND INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 17 (BEHIND UPPER RIGHT SIDE OF DASH) JUNCTION CONNECTOR 18 (BEHIND RIGHT KICK PANEL) LCKI LT GRN WIRE LT GRN/RED WIRE MFRS OF DASH) OF ENGINE COMPT, IN ECU BOX) ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) RADIO 2 FUSE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SG-5 AOD AMCDR AMCPA TELEPHONE TRANSCEIVER, SPEAKER RELAY (AT RIGHT SIDE OF LUGGAGE COMPARTMENT) TELI THW (GS 430) ETHW TPI MREC SG WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE

1 2 M+ M- 3 4 1 GAS IG GND A/C AMBIENT TEMPERATURE SENSOR (NEAR TOP LEFT SIDE OF RADIATOR SUPPORT) A/C COMP RELAY A/C CONDENSER FAN MOTOR (ON FRONT LEFT SIDE OF RADIATOR) A/C MAGNETIC CLUTCH, LOCK SENSOR (ON A/C A/C SINGLE PRESSURE SWITCH AIR MIX CONTROL SERVO MOTOR (PASSENGER) (BEHIND RIGHT SIDE OF DASH) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/YEL WIRE BLOWER MOTOR (BEHIND LOWER RIGHT SIDE OF DASH) BLOWER MOTOR CONTROLLER (BEHIND RIGHT SIDE OF DASH) BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BODY ECU 1 BRN WIRE CDS FAN FUSE COMPRESSOR) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) IGN FUSE ED (AT REAR OF INTAKE MANIFOLD) ED (ON LEFT CYLINDER HEAD) ENGINE ROOM R/B 1 (ON RIGHT SIDE OF ENGINE COMPARTMENT, BEHIND STRUT TOWER) ENGINE ROOM R/B 3 (ON LEFT SIDE OF ENGINE COMPARTMENT, FRONT OF STRUT TOWER) EXHAUST GAS SENSOR (AT LEFT FRONT OF ENGINE COMPARTMENT) FAN 2 RELAY FAN 3 RELAY GND SI B+ 2 3 GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GS 300 GS 430 HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START HTR RELAY IG (AT LEFT SIDE OF DASH) JUNCTION CONNECTOR JUNCTION CONNECTOR 17 (BEHIND JUNCTION CONNECTOR 2 (IN ECU BOX) JUNCTION CONNECTOR 26 (IN ECU BOX) LT GRN/RED WIRE ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE R/B (BEHIND RIGHT KICK PANEL) RADIATOR FAN MOTOR (AT LEFT FRONT OF ENGINE COMPT) RDI FAN FUSE RED WIRE RED/BLU WIRE SIDE OF GLOVE BOX) VIO WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE

2 1 +B 6 7 TRLY DBKL A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) ANTI-LOCK BRAKES SYSTEM BLK/BLU WIRE BLK/RED WIRE BLU WIRE BLU/ORG WIRE BLU/WHT WIRE BODY ECU 2 (IN DRIVER SIDE J/B) BRN/BLK WIRE COMBINATION METER DOOR LOCKS SYSTEM DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ECU-IG FUSE ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM WARNING SYSTEM INSTRUMENT CLUSTER SYSTEM GATEWAY-ECU (BEHIND LEFT SIDE OF DASH) GND CLTE GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY/RED WIRE HEADLIGHTS SYSTEM HOT IN ON OR START IG CLTB CLTS BLVL FFGO ILE STPI HEAD INSTRUMENT CLUSTER SYSTEM INTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM JUNCTION CONNECTOR 15 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR 6 (BEHIND LEFT KICK PANEL) JUNCTION CONNECTOR 9 (BEHIND LEFT SIDE OF DASH) LT GRN/BLK WIRE MIRRORS SYSTEM MPX RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE STEERING PAD SWITCH (COMBINATION SWITCH) TAIL AUTO LF KSW MIRE MIRS MIRB HRLY ALTL ACAN TILT, TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) UNLOCK WARNING SWITCH (BEHIND LEFT SIDE OF DASH) VIO WIRE VIO/RED WIRE WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

10 12 CTYB CYL 14 15 CTYE CTY 2 3 18 9 12 SIG CPUB 8 6 BECU TRLY 9 13 19 HRLY ILE BDR BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BODY ECU 2 (IN DRIVER SIDE J/B) COMPUTER DATA LINES SYSTEM D FR FUSE D RR DOOR FUSE DOOR DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ECU-IG FUSE ENGINE ROOM R/B 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IGNITION KEY CYLINDER LIGHT II (RIGHT SIDE OF DASH) JUNCTION CONNECTOR 10 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR 13 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR 17 (BEHIND UPPER RIGHT SIDE OF DASH) JUNCTION CONNECTOR 6 (BEHIND LEFT KICK PANEL) IF HEADLIGHTS SYSTEM JUNCTION CONNECTOR 7 (BEHIND LEFT KICK PANEL) JUNCTION CONNECTOR 8 (BEHIND LEFT KICK PANEL) LEFT FRONT DOOR COURTESY LIGHT LEFT FRONT DOOR COURTESY SWITCH (ON LEFT "B" PILLAR) LEFT STEP LIGHT RIGHT STEP LIGHT OFF ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PERSONAL LIGHT RADIO 2 FUSE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE

"C" PILLAR) 4 6 2 8 7 16 18 3 5 19 15 CPUB 4 8 2 7 6 18 16 3 5 19 15 CPUB SIG BDR BDR SIG BJ (AT LEFT REAR FLOOR PARTITION PANEL) BL (AT RIGHT REAR FLOOR PARTITION PANEL) BLK/RED WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE CTY CTYE CTYB CYL RRLP GND CTYE CTY CTYB CYL RRLP GND DIODE (LUGGAGE COMPARTMENT DOOR OPEN DETECTION) (AT LEFT SIDE OF LUGGAGE COMPT) FUSE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES JUNCTION CONNECTOR 20 (ABOVE LEFT REAR LEFT REAR DOOR COURTESY LIGHT LEFT REAR DOOR COURTESY SWITCH (ON LEFT ``C" PILLAR) LEFT REAR DOOR ECU (IN LEFT REAR DOOR LEFT VANITY LIGHT LUGGAGE COMPARTMENT DOOR COURTESY SWITCH (REAR CENTER OF LUGGAGE COMPT) LUGGAGE COMPARTMENT LIGHT LUGGAGE COMPT) NOISE FILTER (STOPLIGHT) (AT LEFT FRONT CORNER OF ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) POWER SEAT ECU (UNDER DRIVER'S SEAT) RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR DOOR COURTESY LIGHT RIGHT REAR DOOR COURTESY SWITCH (ON RIGHT RIGHT REAR DOOR ECU (IN RIGHT REAR DOOR) RIGHT REAR INTERIOR LIGHT LEFT REAR INTERIOR LIGHT RIGHT VANITY LIGHT W/ MEMORY SEATS W/O MEMORY SEATS WHEELWELL) BK WHT/BLK WIRE WHT/RED WIRE

A/C DUAL PRESSURE SWITCH ABS, TRAC, VSC ECU BRN WIRE CANADA CENTER AIR BAG SENSOR ASSEMBLY COMBINATION METER COMBINATION SWITCH DATA LINK CONNECTOR (DLC) 3 DAYTIME RUNNING LIGHT RELAY 3 DAYTIME RUNNING LIGHT RELAY 4 DAYTIME RUNNING LIGHT RESISTOR (OR SHORT CONNECTOR) DRIVER DOOR ECU EB (AT MIDDLE OF LEFT INNER FENDER PANEL) ENGINE CONTROL MODULE ENGINE HOOD COURTESY SWITCH EOM EXHAUST GAS SENSOR FRONT WIPER/ WASHER SWITCH HEADLIGHT BEAM LEVEL CONTROL ECU HEADLIGHT CLEANER CONTROL RELAY HEADLIGHT CLEANER MOTOR IF (AT LEFT KICK PANEL) JUNCTION CONNECTOR 10 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR 11 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR 6 KEY INTERLOCK SOLENOID STEERING SENSOR LEFT FRONT FOG LIGHT LEFT FRONT SIDE MARKER LIGHT LEFT FRONT TURN SIGNAL LIGHT LEFT HEAD- LIGHT CONTROL ECU LEFT LOW BEAM HEADLIGHT LEFT MIRROR HEATER LEFT PARKING LIGHT LIGHT CONTROL SWITCH DIMMER SWITCH LUGGAGE COMPARTMENT DOOR OPENER SWITCH MAIN DAYTIME RUNNING LIGHT RELAY COMBINATION METER SEAT HEATER SWITCH ORG/ WIRE PNK WIRE PPS ECU RADIATOR FAN MOTOR SHIELD SHIELD SHIELD TELEPHONE MICROPHONE TELEPHONE TRANSCEIVER/ SPEAKER RELAY TILT, TELESCOPIC ECU TO DRIVER SIDE JUNCTION BLOCK (DIAGRAM 3 OF 4) TO PASSENGER SIDE JUNCTION BLOCK (DIAGRAM 3 OF 4) TURN SIGNAL FLASHER TILT, TELESCOPIC ECU TURN SIGNAL SWITCH UNLOCK WARNING SWITCH TRANSPONDER KEY AMPLIFIER W/ HID W/O HID WASHER LEVEL WARNING SWITCH WATER TEMPERATURE SWITCH WHT/BLK WIRE

A/C CONTROL ASSEMBLY ABS, TRAC, VSC ECU AUTOMATIC CD CHANGER BLOWER MOTOR CONTROLLER BODY ECU 1 BODY ECU 2 BRAKE FLUID LEVEL WARNING SWITCH CENTER AIR BAG SENSOR ASSEMBLY FRONT WIPER MOTOR CIGARETTE LIGHTER CLOCK COMBINATION METER II (AT RIGHT SIDE OF DASH) COMPASS DRIVER SIDE J/B (BEHIND LEFT ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SWITCH FAN 2 RELAY FAN 3 RELAY FROM JUNCTION CONNECTOR 6 (DIAGRAM 2 OF 4) FROM JUNCTION CONNECTOR J/C 10 (DIAGRAM 2 OF 4) FRONT PASSENGER DOOR ECU GARAGE DOOR OPENER GATEWAY ECU GLOVE BOX LIGHT SWITCH GLOVE BOX) HAZARD SWITCH IG (AT LEFT SIDE OF DASH) IG RELAY IH (AT RIGHT DASH PANEL BRACE) INNER MIRROR INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 17 (BEHIND UPPER RIGHT SIDE OF DASH) KICK PANEL) LEFT REAR INTERIOR LIGHT LEFT VANITY LIGHT MOON ROOF CONTROL ECU MOON ROOF CONTROL SWITCH MULTI-DISPLAY NOISE FILTER PANEL) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE R/B (BEHIND RIGHT KICK SHIFT LOCK CONTROL ECU HTR RELAY PERSONAL LIGHT PLAYER RADIO RIGHT MIRROR HEATER RIGHT REAR INTERIOR LIGHT RIGHT VANITY LIGHT STEREO COMPONENT AMPLIFIER VSC OFF SWITCH POWER OUTLET WHT/BLK WIRE

"B" PILLAR) 11 3 12 2 GND 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) BDR 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 D FR FUSE DIMMER SWITCH DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) EA (AT MIDDLE OF RIGHT INNER FENDER PANEL) ECU-IG FUSE ENGINE ROOM R/B 1 FFOG AUTO HEAD TAIL FOG RELAY FOGLIGHT SWITCH FR FOG FUSE FUSE GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN ON OR START JUNCTION CONNECTOR 10 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR 17 (BEHIND UPPER RIGHT SIDE OF DASH) JUNCTION CONNECTOR 18 (BEHIND RIGHT KICK PANEL) JUNCTION CONNECTOR 6 (BEHIND LEFT KICK PANEL) JUNCTION CONNECTOR 7 (BEHIND LEFT KICK PANEL) LEFT FRONT DOOR COURTESY SWITCH (ON LEFT LEFT FRONT FOG LIGHT LIGHT CONTROL SWITCH PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT FOG LIGHT SRS-B FUSE TAIL HEAD AUTO OFF WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL/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 3 15 2 AUTO HEAD TAIL 8 6 11 3 12 2 BECU TRLY GND CLTS CLTE CLTB ANTI-LOCK BRAKES SYSTEM AUTO AUTOMATIC LIGHT CONTROL SENSOR (BEHIND UPPER LEFT SIDE OF DASH) BLK/BLU WIRE BLK/RED WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU 2 (IN DRIVER SIDE J/B) CLTB CLTE CLTS COMBINATION METER COMBINATION SWITCH DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ECU-IG FUSE FRONT HEIGHT CONTROL SENSOR (FORWARD OF LEFT FRONT STRUT TOWER) FUSE GAUGE FUSE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/RED WIRE HEAD TAIL OFF AUTO OFF HEADLIGHT BEAM LEVEL CONTROL ECU (AT LEFT FRONT CORNER OF ENGINE COMPT) HEADLIGHT BEAM LEVEL CONTROL MOTOR HEADLIGHT BEAM LEVEL CONTROL MOTOR (BEHIND RIGHT HEADLIGHT ASSEMBLY) HEADLIGHT BEAM LEVEL CONTROL WARNING INDICATOR HEADLIGHTS CIRCUIT HOT AT ALL TIMES HOT IN ON OR START JUNCTION CONNECTOR 10 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR 6 JUNCTION CONNECTOR 6 (BEHIND LEFT KICK PANEL) JUNCTION CONNECTOR 7 (BEHIND LEFT KICK PANEL) LIGHT CONTROL SWITCH PASSENGER SIDE J/B (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 WHT/ BLK WIRE WHT/BLK WIRE WHT/RED WIRE

5 12 11 4 GTX+ GTX- 5 16 MPX+ MPX- A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) BLU WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU 1 (IN PASSENGER SIDE J/B) BODY ECU 2 (IN DRIVER SIDE J/B) BRN WIRE CENTER AIR BAG COMBINATION METER DRIVER DOOR ECU (IN DRIVER'S DOOR) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) FRONT PASSENGER DOOR ECU (IN RIGHT FRONT DOOR) GATEWAY-ECU (BEHIND LEFT SIDE OF DASH) LEFT REAR DOOR ECU (IN LEFT REAR DOOR MOON ROOF CONTROL ECU (IN FRONT OF MOON ROOF OPENING) MULTI-DISPLAY ORG/ WIRE POWER SEAT ECU (UNDER DRIVER'S SEAT) RADIO, PLAYER RED/BLU WIRE RIGHT REAR DOOR ECU (IN RIGHT REAR DOOR) SENSOR ASSEMBLY (BEHIND CENTER OF DASH, FORWARD OF CENTER CONSOLE) STEERING PAD SWITCH (COMBINATION SWITCH) TILT, TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) W/ MEMORY W/ NAVIGATION W/O MEMORY W/O NAVIGATION WHT WIRE YEL WIRE