Lexus GS IV (2011-2015) nca Wiring diagrams

5 4 3 2 1 VCSK SKG SKS ABS MTR 1 RELAY BLK WIRE BLU WIRE BRN WIRE BUZZER COMPUTER DATA LINES SYSTEM CTY ENA ENERGIZED LEFT COWL SIDE J/B LH (LEFT END ECU IG OF DASH) FUSE ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 3 ABS MTR 2 RELAY (LEFT REAR OF ENGINE COMPT) FRR+ FRR- GRN WIRE GRY WIRE HALL IC 1 HALL IC 2 BRAKE PEDAL STROKE SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) HOT W/ LEFT J/C LBL LBL PFR LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (LEFT FRONT "B" PILLAR) LEFT REAR SPEED SENSOR (LEFT REAR WHEEL ASSEMBLY) LT GRN WIRE MTT NCA WIRE PNK RL+ RL- WIRE PNK WIRE PRL VBZ PNK WIRE RED WIRE RIGHT FRONT SPEED SENSOR (RIGHT FRONT WHEEL ASSEMBLY) RLA- RLA+ FRA- FRA+ FR+ FR- RLR+ RLR- SKG SKID CONTROL BUZZER ASSEMBLY (LEFT END OF DASH) SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) VCM VCS OFF SWITCH INTEGRATION CONTROL, PANEL ASSEMBLY VCSK VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+BC BLK WIRE BLU WIRE BRAKE CONTROL POWER SUPPLY (CENTER FRONT OF HV SUPPLY BATTERY ASSEMBLY) BRN WIRE CAPACITOR (HV) FUSE COMPUTER DATA LINES SYSTEM CSS+ ENA ENERGIZED RH COWL ECU IG SIDE J/B FUSE (RIGHT END OF DASH) FAIL FLA- FLA+ FL+ FL- FLR+ FLR- FUSE GRN WIRE GRY WIRE HOLD SWITCH HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) MPX HOT W/ RH HZRI J/C LEFT "C" PILLAR) LEFT COWL SIDE J/B LEFT FRONT SPEED SENSOR (LEFT FRONT WHEEL ASSEMBLY) LH (LEFT END OF DASH) FUSE LT BLU WIRE LT GRN WIRE NCA WIRE NIGHT VIEW NIGHT VIEW ECU (RIGHT SIDE OF LUGGAGE COMPT) NVSW PFL PNK WIRE PRR- RED WIRE RELAY ENERGIZED RIGHT RIGHT REAR SPEED SENSOR (RIGHT REAR WHEEL ASSEMBLY) RR+ RR- CANH CANL RRA- RRA+ RRR+ RRR- SATELLITE SET SWITCH SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) VIO WIRE WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

+B MREL BATT 10 23 STP CCS 12 25 3 2 46 1 CANP CANN 125 128 126 127 108 30 29 ETA 25 24 22 PNK WIRE 4 1 3 6 MREL ACCELERATOR PEDAL SENSOR ASSEMBLY (TOP OF ACCELERATOR PEDAL ASSEMBLY) BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH CRUISE CONTROL MAIN SWITCH ECM (ENGINE CONTROL MODULE) (LEFT SIDE OF ENGINE COMPT) EFI MAIN FUSE EFI MAIN RELAY 1 EFI MAIN RELAY 2 ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) RH ECU-IG FUSE ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) F/PMP FUSE FUEL PUMP CONTROL ECU (LEFT SIDE OF LUGGAGE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES IGCT 1 FUSE IGCT 5 FUSE IGCT RELAY J/C LT BLU WIRE LT GRN WIRE M- M+ NCA WIRE ON OFF PNK PNK WIRE PNK WIRE POWER MANAGEMENT CONTROL ECU (RIGHT END OF DASH) RED WIRE SFTD SFTU SHIFT LEVER POSITION SENSOR (TRANSMISSION) SPIRAL CABLE (IN STEERING COLUMN) THROTTLE BODY W/ MOTOR ASSEMBLY (TOP REAR OF ENGINE) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

15 16 11 10 FL- FL+ RR+ RR- 8 9 CANL CANH ABS- MAIN 1 FUSE BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CAN I/F COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CONTROL SWITCH ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) FUSE GND RL+ RL- FR+ FR- PNK WIRE GRN WIRE GRY WIRE HOT AT ALL TIMES J/C LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT SPEED SENSOR (LEFT FRONT WHEEL ASSEMBLY) LEFT REAR SPEED SENSOR (LEFT REAR WHEEL ASSEMBLY) NCA WIRE NETWORK GATEWAY ECU (RIGHT CENTER OF DASH) PNK WIRE RED WIRE RELAY ENERGIZED RELAY ENERGIZED ENGINE GAUGE ROOM R/B 1 FUSE (LEFT SIDE OF ENGINE COMPT) SFTD 1 2 SFTU SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) SPEED SENSOR STOP FUSE STOP LIGHT SWITCH (BRAKE PEDAL BRACKET) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+B PGND 1 2 3 4 5 6 7 8 9 10 11 12 13 RZG SRZG RZV TRQV 1 2 3 4 5 6 7 8 ESS CANL CANH 10 11 12 13 14 15 16 17 18 PIG 9 10 CSS- CSS+ BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B EPS-B FUSE (LEFT SIDE OF ENGINE COMPT) EPS-IG FUSE GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES INCS INSN LEFT COWL SIDE J/B (LEFT END OF DASH) LH ECU-IG FUSE LT GRN WIRE LUGGAGE ROOM J/B 1 (LEFT SIDE OF LUGGAGE COMPT) MPX-B FUSE NCA WIRE OUCS OUSN PNK ASST IG WIRE PNK BAT WIRE PNK WIRE POWER STEERING ECU (RIGHT REAR CORNER OF ENGINE COMPT) POWER STEERING MOTOR (FRONT OF ENGINE COMPT) RED WIRE RED/BLK WIRE RED/BLU WIRE RELAY ENERGIZED RZCS RZG RZSN RZSN RZCS INSN INCS OUSN OUCS RZV STEERING SENSOR (ON STEERING COLUMN) WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 M- M+ 10 6 5 VT TSEN AUTO AUTO IND BLK WIRE BLU WIRE CAN I/F CANH CANL 28 29 COMPUTER DATA LINES SYSTEM COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ECU-B 3 FUSE ELECTRIC PARKING BRAKE SWITCH ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) EPB GAUGE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSIBLE LINK EPB FUSE BLOCK (LEFT REAR OF LUGGAGE COMPT) HOT AT ALL TIMES LUGGAGE ROOM J/B 1 (LEFT SIDE OF LUGGAGE COMPT) HOT W/ IG AUTO PNK WIRE ILL ILL IND LED DRIVER LEFT COWL SIDE J/B (LEFT END OF DASH) LH ECU-IG FUSE LOCK LPA TX +B MPX-B FUSE NCA WIRE PARKING BRAKE ACTUATOR (LEFT REAR OF LUGGAGE COMPT) PARKING BRAKE ECU (LEFT SIDE OF LUGGAGE COMPT) PARKING LIGHT SWITCH ASSEMBLY PNK WIRE RED WIRE RELEASE RR ECU-IG FUSE TELLTALES TGND TGND 1 2 VIO WIRE VT TSEN WHT WIRE WHT/BLK WIRE YEL WIRE

18 19 PNK WIRE ANTENNA ANTENNA AMPLIFIER ASSEMBLY (RIGHT "C" PILLAR) ASEL BLK WIRE BLU WIRE CLGB CSEL DATA ELECTRICAL KEY ANTENNA INDOOR ASSEMBLY 3 (CENTER FRONT OF LUGGAGE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES J/C LEFT "C" PILLAR) LEFT FRONT DOOR OUTSIDE HANDLE ASSEMBLY LT GRN WIRE LUGGAGE ROOM J/B 1 (LEFT SIDE OF LUGGAGE COMPT) NCA WIRE PNK WIRE REAR ELECTRICAL KEY ANTENNA (BEHIND CENTER OF REAR BUMPER) RED WIRE RR J/B-B FUSE SECURITY FUSE SECURITY HORN ASSEMBLY (RIGHT SIDE OF ENGINE COMPT) SECURITY HORN RELAY (IF EQUIPPED) SENS TRG+ VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE CA+ CGND SHIELD COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM EAU GRN WIRE GRY WIRE GVIF HOT AT ALL TIMES HOT AT ALL TIMES RIGHT COWL ILL ILL INSTRUMENT CLUSTER SYSTEM LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT STEERING PAD SWITCH LH-IG FUSE LT BLU WIRE LT GRN WIRE MIN MIN+ SGND MACC SHIELD MODE MULTI MEDIA FUSE MULTI-MEDIA MODULE RECEIVER ASSEMBLY NCA WIRE NIGHT VIEW ECU (RIGHT SIDE OF LUGGAGE COMPT) OFF HOOK ON HOOK PNK WIRE RED WIRE RH ACC RELAY RH ECU-IG FUSE RIGHT STEERING PAD SWITCH ROOF ANTENNA ASSEMBLY SEEK SEUC SHIELD SIDE J/B (RIGHT END OF DASH) FUSE SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY SUPPLEMENTAL RESTRAINTS SYSTEM SWG AIR ARON V+ V- VMTF VOICE VOICE RETURN VOLUME- W/ LEXUS ENFORM W/O LEXUS ENFORM WHT WIRE WHT/BLK WIRE YEL WIRE

+B SPI+ SPI- 1 2 3 4 5 6 7 USB USBG VOT+ USBV VOT- VOR- VOR+ 1 4 3 2 SHIELD ANTENNA CORD SUB-ASSEMBLY 2 (USA) ANTENNA DIVIDER (USA) (CENTER OF DASH) BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DCM (HV) FUSE DCM (TELEMATICS TRANSCEIVER) (RIGHT END OF DASH) ENGINE COMPT) ENGINE ROOM R/B 1 (LEFT SIDE OF FUSE GAUGE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES ILL+ GSW SIL SIG- INTERIOR LIGHTS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM COMPUTER DATA LINES SYSTEM LT BLU WIRE LT GRN WIRE LUGGAGE ROOM J/B 1 (LEFT SIDE OF LUGGAGE COMPT) MIN MULTI-MEDIA MODULE RECEIVER ASSEMBLY MUTE MCO+ MCO- NCA WIRE PNK SLED SPDP WIRE PNK WIRE RED WIRE RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT FRONT SPEAKER ASSEMBLY 2 ROOF ANTENNA ASSEMBLY SGND SHIELD SHIELD SGND MCVD MCI+ MCI- SPO+ SPO- PNK WIRE STEREO COMPONENT AMPLIFIER (RIGHT REAR CORNER OF LUGGAGE COMPT) TMUT USB USBG USBV VOR- VOT+ WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 IG 1 2 3 4 5 FR+ FR- RR+ RR- GND 13 14 4 16 CANL CANH PRG RDA 2 1 F OT F IN 2 1 R OT R IN PNK WIRE 32 31 30 11 IG ALTB BECU 6 7 8 SIL ANTENNA ANTENNA AMPLIFIER ASSEMBLY (RIGHT "C" PILLAR) BLK WIRE BLU WIRE CAN I/F CERTIFICATION ECU (RIGHT END OF DASH) CLSW RDA PRG CSEL +B ALSI DATA +5 ASEL COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DISPLAY DRIVER DRIVER TIRE PRESSURE MONITOR INITIATOR (W/ AUTO LOCATION) (RIGHT END OF DASH) ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) RH-IG FUSE ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) FRONT TIRE PRESSURE MONITOR INITIATOR (LEFT FRONT WHEELWELL) FUSE GAUGE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES LED DRIVER LEFT COWL SIDE J/B (LEFT END OF DASH) LH J/B-B LH-IG FUSE LT GRN WIRE LUGGAGE ROOM J/B 1 (LEFT SIDE OF LUGGAGE COMPT) MAIN BODY ECU (LEFT END OF DASH) MPX-B FUSE NCA WIRE PNK 51 64 63 65 WIRE PNK 7 6 15 16 CSEL RDAM RCO ASEL WIRE PNK WIRE REAR TIRE PRESSURE MONITOR INITIATOR (LEFT SIDE OF LUGGAGE COMPT) RED WIRE RELAY ENERGIZED RR J/B-B FUSE TELLTALES TIRE PRESSURE WARNING RESET SWITCH (TIRE PRESSURE WARNING SWITCH 1) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE