Lexus GS III (2004-2007) nca Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 SRLR ABS 1 FUSE ABS 2 FUSE ABS MOTOR RELAY ABS SOL RELAY ABS, TRAC, VSC ACTUATOR (AT LEFT REAR CORNER OF ENGINE COMPT) ABS, TRAC, VSC ECU (BEHIND LEFT SIDE OF DASH) AST SRLH SFRR PL BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BRN WIRE EA (AT MIDDLE OF RIGHT INNER FENDER PANEL) EE (UNDER ABS, TRAC, VSC ACTUATOR) ENGINE ROOM R/B 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) ENGINE ROOM R/B 2 (ON LEFT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) FR- FR+ FL- FL+ FSS GRN/BLK WIRE GRN/ORG WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE HOT AT ALL TIMES JUNCTION CONNECTOR 5 (IN ENGINE ROOM R/B 2) JUNCTION CONNECTOR 6 (BEHIND LEFT KICK PANEL) LT GRN/BLK WIRE LT GRN/RED WIRE MT- SR MTT MT+ NCA WIRE ORG/ WIRE PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SFLH PMC SFLR SRRH SRRR VCM PH SFRH STR+ TRAC MOTOR RELAY VIO/RED WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE

BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLVL BRAKE FLUID LEVEL WARNING SWITCH (IN BRAKE FLUID RESERVOIR) BRN WIRE DRIVER SIDE J/B DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ECU-IG FUSE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IG (AT LEFT SIDE OF DASH) II (AT RIGHT SIDE OF DASH) JUNCTION CONNECTOR 1 (IN ECU BOX) JUNCTION CONNECTOR 10 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR 15 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR 3, 4 (IN ECU BOX) JUNCTION CONNECTOR 6 (BEHIND LEFT KICK PANEL) JUNCTION CONNECTOR 7 (BEHIND LEFT KICK PANEL) JUNCTION CONNECTOR 9 (BEHIND LEFT SIDE OF DASH) LT GRN WIRE LT GRN/BLK WIRE MASTER CYLINDER PRESSURE SENSOR (AT LEFT REAR CORNER OF ENGINE COMPARTMENT) NCA WIRE PARK/NEUTRAL POSITION SWITCH (ON TRANSMISSION) PMC PNK (OR PNK/BLK) WIRE PNK WIRE PNK/BLK WIRE RED (OR GRN) WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE SHORT PIN SIL STEERING SENSOR (COMBINATION SWITCH) STOP FUSE STOP LIGHT SWITCH (ON BRAKE PEDAL BRACKET) VCM 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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 VGS ABS DECELERATION SENSOR (UNDER REAR OF CENTER CONSOLE) ABS IND. ABS, TRAC, VSC ECU (BEHIND LEFT SIDE OF DASH) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE IND BRN WIRE BRN/WHT WIRE COMBINATION METER D/G CSW GYAW YAW DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ENG ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) FLO VSCW WA IND STP GAUGE FUSE GGND GGND RR+ RR- GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY/BLU WIRE GSS RL+ RL- GYAW HEADLIGHTS SYSTEM HOT IN ON OR START IGN FUSE JUNCTION CONNECTOR 14 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR 6 (BEHIND LEFT KICK PANEL) LEFT REAR ABS SPEED SENSOR (AT LEFT REAR WHEEL) LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE NCA WIRE NEO ORG/ WIRE PNK TRC+ WIRE PNK WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RIGHT REAR ABS SPEED SENSOR (AT RIGHT REAR WHEEL) SLIP IND SPEEDOMETER TC TS BRL TRC+ VGS VIO WIRE VIO/RED WIRE VSC IND VSC OFF IND VYS WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YAW RATE SENSOR (UNDER REAR OF CENTER CONSOLE) YD BZ YEL WIRE YSS

A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) ALT FUSE ALT-S FUSE BATTERY BATTERY GROUND BLK WIRE BLU WIRE COMBINATION METER CHARGE WARNING LIGHT DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) ENGINE ROOM R/B 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) FUSE GAUGE FUSE GENERATOR GS 430 GS 300 IGNITION SWITCH II (AT RIGHT SIDE OF DASH) JUNCTION CONNECTOR 1 (IN ECU BOX) JUNCTION CONNECTOR 17 (BEHIND UPPER RIGHT SIDE OF DASH) JUNCTION CONNECTOR 6 (BEHIND LEFT KICK PANEL) LOCK OFF MPX NCA WIRE PNK/BLU WIRE RED WIRE RED/BLU WIRE RUN WIRE TILT, TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) WHT WIRE WHT/BLU WIRE YEL WIRE

+IG 5 25 WA D/G ABS SOL RELAY ABS, TRAC, VSC ECU (BEHIND LEFT SIDE OF DASH) BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BODY ECU 1 (IN PASSENGER SIDE J/B) BRN WIRE CG SG COMBINATION METER CYLINDER HEAD) ED DATA LINK CONNECTOR 3 (BEHIND LEFT SIDE OF DASH) ED (GS 300: AT REAR OF INTAKE MANIFOLD) (GS 430: ON LEFT CYLINDER HEAD) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) ENGINE CONTROLS SYSTEM ENGINE ROOM R/B 2 (ON LEFT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) GRY WIRE HOT AT ALL TIMES IGNITER 1 TAC (LEFT SIDE OF ENGINE) II (AT RIGHT SIDE OF DASH) J/C 1 (IN ECU BOX) J/C 10 (BEHIND LEFT SIDE OF DASH) J/C 14 (BEHIND LEFT SIDE OF DASH) J/C 2 J/C 26 (IN ECU BOX) J/C 3, 4 (IN ECU BOX) J/C 9 LT GRN/BLK WIRE MULTI-DISPLAY NCA WIRE OBD FUSE SIDE J/B (BEHIND LEFT KICK PANEL) PNK WIRE PNK/BLK (OR PNK) WIRE PNK/BLK WIRE SHORT PIN SIL TACH TC +B TS TC WB DATA LINK CONNECTOR 1 (AT LEFT SIDE OF ENGINE COMPT, BEHIND ECU BOX) WFSE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WSFE BAT WSFE TS

+B AUI- AUO- 1 2 3 4 5 6 7 8 9 10 VR 1 2 3 4 5 AUI+ AUO+ 12 5 GTX- GTX+ 9 10 TX- TX+ PNK WIRE ACAN BLK WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BODY ECU 2 (IN DRIVER SIDE J/B) BRN WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B RADIO 2 FUSE (BEHIND LEFT KICK PANEL) GATEWAY-ECU (BEHIND LEFT SIDE OF DASH) GAUGE FUSE GRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START IG DR IH (AT RIGHT DASH PANEL BRACE) INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) J/C 13 (BEHIND LEFT SIDE OF DASH) J/C 22 (ABOVE RIGHT REAR WHEELWELL) J/C 27 (BEHIND LEFT KICK PANEL) J/C 28 (RIGHT SIDE OF LUGGAGE COMPT) LEFT FRONT DOOR SPEAKER LEVINSON LT GRN/BLK WIRE MARK LEVINSON EXCEPT MARK MULTI-DISPLAY N-MU NAVIGATION ECU (AT RIGHT REAR CORNER OF LUGGAGE COMPT) NCA WIRE ORG/ WIRE PARKING BRAKE SWITCH (BEHIND LEFT SIDE OF DASH) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PKB TC PNK WIRE PNK/BLK WIRE RADIO, PLAYER RED WIRE RED/BLU WIRE REV MUTE SYNC TV FUSE TX+ VG VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 +B ILL 3 10 PNK WIRE 5 12 GTX+ GTX- ANT B ANT A ANT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER DOME FUSE DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ENGINE ROOM R/B 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) GATEWAY-ECU (BEHIND LEFT SIDE OF DASH) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACC OR ON IH (AT RIGHT DASH PANEL BRACE) ILL INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) J/C 13 (BEHIND LEFT SIDE OF DASH) J/C 18 (BEHIND RIGHT KICK PANEL) J/C 28 (RIGHT SIDE OF LUGGAGE COMPT) LT GRN WIRE MULTI-DISPLAY MUTE R+ L+ NCA WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PNK TX- WIRE PNK WIRE POWER ANTENNA SYSTEM R- L- GND RADIO 1 FUSE RADIO 2 FUSE RADIO, PLAYER RED WIRE VIO/WHT WIRE W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE

1 10 11 2 AUI+ AUI- AUO- AUO+ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 FR+ FL+ TMLT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FR+ FL+ RR+ RL+ CSR+ WF+ 1 2 3 4 5 6 7 8 9 10 11 12 CDR+ CDL+ 1 2 3 4 5 6 7 8 9 10 CDR+ CDL+ MUTE TXM+ +B CDR- CDL- GND TXM- BLK WIRE BLU WIRE BLU/BLK (OR PNK) WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED (OR VIO) WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BUS - CD AUTOMATIC CHANGER CDR- CDL- CENTER SPEAKER CSR- WF- FR- FL+ RR- RL+ GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE IH (AT RIGHT DASH PANEL BRACE) J/C 21 (ABOVE RIGHT REAR WHEELWELL) LEFT FRONT DOOR SPEAKER LEFT REAR DOOR SPEAKER LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MUTE MUTE SGND R- L- N-MU NAVIGATION ECU (AT RIGHT REAR CORNER OF LUGGAGE COMPARTMENT) NCA WIRE OF LUGGAGE COMPT) PNK BUS- WIRE PNK WIRE R+ L+ SPD FR- FL- RED WIRE RIGHT FRONT DOOR SPEAKER RIGHT REAR DOOR SPEAKER SP- SPEAKER SPEAKER TWEETER SPI+ STEREO COMPONENT AMPLIFIER (AT RIGHT REAR CORNER TELEPHONE TRANSCEIVER, SPEAKER RELAY (AT RIGHT SIDE OF LUGGAGE COMPARTMENT) TWEETER TXM- TXM+ PNK WIRE VIO WIRE VIO/WHT WIRE W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BLK WIRE WOOFER SPEAKER YEL WIRE YEL/GRN WIRE

+B FR- FL- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 +B ILL INTERIOR LIGHTS SYSTEM 1 2 3 4 5 6 7 8 9 10 11 12 R+ L+ SGND MUTE 1 2 3 4 5 6 7 8 9 10 CDR+ CDL+ MUTE TXM+ 1 2 3 4 5 6 7 8 9 10 FR+ FL+ (OR PNK) WIRE 1 2 3 4 5 6 7 8 PNK TXM+ CDR+ CDL+ TXM- CDR- MUTE WIRE 1 2 3 RR+ RL+ RR- 1 4 SP+ SP- 1 4 SPI+ SPI- 15 1 10 11 2 MUTE AUI+ AUI- AUO- AUO+ 3 10 PNK WIRE 5 12 GTX+ GTX- 5 6 WF- RL- ANT B ANT ANT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE CD AUTOMATIC CHANGER (IF EQUIPPED) CDL+ CDR- CDL- GND TXM- DOME FUSE DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ENGINE ROOM R/B 1 (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) GATEWAY-ECU (BEHIND LEFT SIDE OF DASH) GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACC OR ON IH (AT RIGHT DASH PANEL BRACE) ILL INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) J/C 18 (BEHIND RIGHT KICK PANEL) LEFT FRONT DOOR SPEAKER LEFT REAR DOOR SPEAKER LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE LT LT MULTI-DISPLAY MUTE MUTE R+ L+ N-MU NAVIGATION ECU (AT RIGHT REAR CORNER OF LUGGAGE COMPARTMENT) NCA WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PNK BUS- BUS+ WIRE PNK TX- WIRE PNK WIRE PNK/BLU WIRE POWER ANTENNA SYSTEM R - L - R- L- GND RADIO 1 FUSE RADIO 2 FUSE RADIO, PLAYER RED WIRE RIGHT FRONT DOOR SPEAKER SIDE OF DASH) SPEAKER STEREO COMPONENT AMPLIFIER (BEHIND RIGHT TELEPHONE TRANSCEIVER, SPEAKER RELAY (AT RIGHT SIDE OF LUGGAGE COMPT) TLMT TWEETER VIO WIRE W/ NAVIGATION W/ NAVIGATION W/O NAVIGATION PNK WIRE W/O NAVIGATION WF- WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE WOOFER SPEAKER RIGHT REAR DOOR SPEAKER YEL WIRE YEL/GRN WIRE

BATTERY BATTERY GROUND BLK WIRE BLK/BLU WIRE BLU WIRE DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) EE (UNDER ABS, TRAC, VSC ACTUATOR) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPARTMENT, IN ECU BOX) ENGINE ROOM R/B 1 (ON RIGHT SIDE OF ENGINE COMPARTMENT, BEHIND STRUT TOWER) FUSE GS 430 GS 300 IGNITION SWITCH JUNCTION CONNECTOR 3, 4 (IN ECU BOX) JUNCTION CONNECTOR 5 (IN ENGINE ROOM R/B 2) LOCK OFF MAIN FUSE NCA WIRE PARK/NEUTRAL POSITION SWITCH (ON TRANSMISSION) RED WIRE RUN WIRE STARTER STARTER FUSE STARTER RELAY WHT WIRE