Lexus LS IV (2006-2012) computer data lines system Wiring diagrams

1 2 LOIL GND 1 5 11 20 10 PNK BATB ALTB MOPS MOLE MOL WIRE 5 1 2 3 4 FMIG 8 9 COMPUTER DATA LINES SYSTEM CANL CANH ABS IND. AFS OFF IND BLK WIRE BLK/ WHT WIRE BLU WIRE BRAKE FLUID LEVEL WARNING SWITCH (BRAKE MASTER CYLINDER RESERVOIR BRAKE HOLD IND BRAKE IND BRN WIRE CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 5 (LEFT SIDE OF DASH) CHARGE IND CLOCK COMBINATION METER COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM CANP CANN CRUISE IND DOME FUSE DOOR IND DRIVER SIDE J/B (LEFT END OF DASH) DRIVER'S ELECTRONICALLY CONTROLLED BRAKE IND ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS SYSTEM ENGINE OIL LEVEL SENSOR (LOWER RIGHT SIDE OF ENGINE) ENGINE OIL PRESSURE SWITCH ASSEMBLY (LOWER LEFT FRONT OF ENGINE) EXTERIOR LIGHTS SYSTEM NAVIGATION SYSTEM FR CTRL ALT FUSE FR CTRL BAT FUSE INJ FUSE P-J/B FUSE FRONT FOG IND FUSE GRN WIRE GRN/ LT WIRE HEAD IND TAIL IND HEIGHT HIGH IND HIGH BEAM AUTO IND HIGH BEAM IND HOLD IND HOT AT ALL TIMES HOT AT ALL TIMES DRIVER SIDE J/B (LEFT END MPX-B 2 FUSE OF DASH) HOT W/ P ACC RELAY ENERGIZED PASSENGER SIDE J/B (RIGHT END OF DASH) IND J/C LBL LED DRIVER LEFT TURN IND LIGHT ECU LKA IND LT BLU WIRE LT GRN WIRE MALFUNCTION INDICATOR LAMP MASTER IND MICRO COMPUTER MPU MPX+B I/F MPXB P-ACC FUSE PARK IND PASSENGER SIDE J/B (RIGHT END OF DASH) PCS IND PNK ENGINE CONTROLS SYSTEM WIRE PNK WIRE POWER POWER STEERING RED WIRE RELAY ENERGIZED RELAY ENERGIZED ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) E/G RM ECU-B FUSE RESET+ RIGHT TURN IND RING ILLUMINATION SEAT BELT IND SHIFT INTERLOCK SYSTEM SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) SLIP IND SLIP OFF IND SRS IND SUPPLY TFT DISPLAY IC TIRE PRESSURE IND TRIP TRIP SWITCH TX-1 TX+1 VIO WIRE WATER TEMP HOT IND WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE CANN CANP CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 5 (LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM COURTESY SWITCH D-ACC FUSE DCM (TELEMATICS DCTY DRIVER SIDE J/B (LEFT END OF DASH) FUEL SENDER GAUGE (LEFT SIDE OF FUEL TANK) FUEL SENDER GAUGE (SUB) (RIGHT SIDE OF FUEL TANK) FUSE GRN WIRE HOT AT ALL TIMES HOT W/ HOT W/ D-ACC RELAY ENERGIZED J/C LCTY LEFT FRONT PAD WEAR INDICATOR SWITCH LEFT REAR DOOR COURTESY SWITCH (LEFT "C" PILLAR) LEFT REAR PAD WEAR INDICATOR SWITCH LT BLU WIRE LT GRN WIRE MAIN BODY ECU PASSENGER SIDE J/B (RIGHT END OF DASH) PCTY PNK WIRE RCTY RED WIRE RIGHT FRONT DOOR COURTESY SWITCH (RIGHT "B" PILLAR) RIGHT FRONT PAD WEAR INDICATOR SWITCH/ RIGHT REAR DOOR COURTESY SWITCH (RIGHT "C" PILLAR) RIGHT REAR PAD WEAR INDICATOR SWITCH SPDP STEREO COMPONENT AMPLIFIER ASSEMBLY (RIGHT REAR OF LUGGAGE COMPT) TRANSCEIVER) (RIGHT END OF DASH) VIO WIRE WHT WIRE WHT/BLK WIRE

13 14 CANL CANH 18 34 27 17 VC NE- NE+ 10 6 4 5 PNK WIRE BLK WIRE BLU WIRE BRN WIRE CANN CANP CENTER JUNCTION BLOCK J/B 5 (LEFT SIDE OF DASH) COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CRANKSHAFT POSITION SENSOR DIRECT FUEL INJECTOR ASSEMBLY 1 (LEFT SIDE OF INTAKE MANIFOLD) DISP DISPLAY, NAVIGATION MODULE DISPLAY DRIVER SIDE J/B (LEFT END OF DASH) ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) FUSE GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT W/ RR HYBRID VEHICLE CONTROL ECU INJECTOR DRIVER (BANK 1) (CENTER REAR OF ENGINE COMPT) LGLB LT BLU WIRE LT GRN WIRE LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MPXB NCA WIRE NE- NE VC P-D/C CUT FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PIND PNK WIRE PORT FUEL INJECTOR ASSEMBLY 1 REAR JUNCTION BLOCK ECU RED WIRE RESET+ RR MPX B 1 FUSE RR MPX-B 2 FUSE SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY STEERING PAD SWITCH ASSEMBLY W/ MODULATOR STEERING SWITCH ECU SYSTEM TELEVISION SWITCH, VOLUME ASSEMBLY TOP OF ENGINE) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

15 16 CANN CANP 23 24 PNK MSW- MSW+ WIRE 3 4 REAR CIGARETTE LIGHTER ILLUMINATION ILL+ ILL- 4- SEATER 5- SEATER 6 22 ALTB 8 16 PANL ACAN ASSEMBLY 2 (BASE OF LEFT "C" PILLAR) BLK WIRE BLU WIRE CENTER JUNCTION BLOCK J/B 3 CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM D RR DOOR DOOR 2 FUSE FUSE D S/HTR FUSE D-ACC FUSE DCM (TELEMATICS TRANSCEIVER) (RIGHT END ILL+ OF DASH) DOOR 1 FUSE DRIVER SIDE J/B DRIVER SIDE J/B (LEFT END OF DASH) ELECTRIC SHIFT PARKING POSITION BRAKE INDICATOR SWITCH ASSEMBLY FUSE FUSIBLE LINK BLOCK GARAGE DOOR OPENER SWITCH GRN WIRE GRY WIRE HEADLIGHT SWIVEL MAIN SWITCH HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INTERIOR LIGHT SWITCH J/C LEFT FRONT MULTIPLEX NETWORK DOOR ECU (DRIVER'S DOOR) LEFT FRONT SEAT CLIMATE CONTROL SWITCH LEFT FRONT SEAT MEMORY SWITCH LH J/B DC/DC FUSE LIGHT REAR CIGARETTE LIGHTER ASSEMBLY LT GRN WIRE MAIN BODY ECU MAP LIGHT SWITCH MPX-B 1 FUSE ORG/ WIRE OVERHEAD MODULE (ROOF CONSOLE) PANEL FUSE PANEL RELAY PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE PNLI SIG POWER SWITCH RED WIRE RIGHT FRONT SEAT CLIMATE CONTROL SWITCH SEAT VIBRATOR SWITCH SLIDING ROOF CONTROL SWITCH SOS SWITCH SWIL WHT WIRE WHT/BLK WIRE YEL WIRE

11 6 3 13 10 9 1 CPUB BDR SIG PNLI CANN CANP GND 15 16 23 24 ASH- ASH+ MSW- MSW+ PNK WIRE 23 22 CANN CANP 24 23 16 15 MSW+ MSW- ASH+ ASH- 4 18 ILL- ILL+ 4- SEATER 5- SEATER 6 14 ILL+ ILL- 9 11 8 CTY ARMREST COURTESY LIGHT SWITCH ASSEMBLY BLU WIRE BRN WIRE CENTER JUNCTION BLOCK J/B 4 CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) COMBINATION METER COMPUTER 10 9 1 6 11 3 13 CANN CANP GND BDR CPUB SIG PNLI DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM COOLING BOX ASSEMBLY (4-SEATER) ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) FRONT TRIP CIGARETTE SWITCH LIGHTER GRN WIRE GRY WIRE HAZARD WARNING SIGNAL SWITCH ASSEMBLY HOT AT ALL TIMES HOT AT ALL TIMES RR MPX B 2 FUSE HOT IN ON OR START HOT IN ON OR START LUGGAGE RR- ROOM J/B FUSE (LEFT SIDE OF LUGGAGE COMPT) ILL- REAR CONSOLE SWITCH (5-SEATER) ILL- SWITCH (4-SEATER) LEFT REAR ASHTRAY LIGHT LEFT REAR MULTIPLEX NETWORK DOOR ECU (LEFT REAR DOOR) LEFT REAR SEAT MEMORY SWITCH LT BLU WIRE LT GRN WIRE LUGGAGE DOOR OPENING SWITCH ASSEMBLY MICRO COMPUTER ORG/ WIRE P RR DOOR -2 MPX-B FUSE FUSE FUSE P-J/B FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE POWER SUPPLY REAR CURTAIN SWITCH ASSEMBLY RED WIRE RHDW RHUP RIGHT REAR ASHTRAY LIGHT RIGHT REAR MULTIPLEX NETWORK DOOR ECU (RIGHT REAR DOOR) RIGHT REAR SEAT MEMORY SWITCH WHT WIRE WHT/BLK WIRE YEL WIRE

2 5 ILL- 23 24 PNK MSW- MSW+ WIRE 3 5 6 11 ILL CANL CANH GND 4 SEATER, 5 SEATER, W/O OTTOMAN 5 SEATER W/ OTTOMAN 6 3 16 10 9 11 1 18 BDR SIG 6 5 CANN CANP BLK WIRE BLK/WHT WIRE BLU WIRE CANN CANP CPUB GND PNLI COMBINATION SWITCH ASSEMBLY COMPUTER DATA LINES SYSTEM COMPUTER PNK DATA LINES SYSTEM WIRE DOWN FRONT PASSENGER'S SEAT RECLINING CONTROL SWITCH FRONT PASSENGER'S SEAT SLIDE CONTROL SWITCH FUSE GRN WIRE GRY WIRE HEAD AUTO HEADLIGHT CLEANER SWITCH HEADLIGHT CLEANER SWITCH ILLUM HEADLIGHT DIMMER SWITCH HOT AT ALL TIMES HOT IN ON OR START INTEGRATION CONTROL, PANEL ASSEMBLY LIGHT CONTROL RHEOSTAT LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE OFF TAIL ORG/ WIRE P DOOR 1 FUSE P DOOR 2 FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE POWER TRUNK LID CONTROL ECU (LEFT SIDE OF LUGGAGE COMPT) POWER TRUNK LID CONTROL SWITCH REAR DOOR SUNSHADE SWITCH REAR SEAT RETURN SWITCH REAR SUNSHADE SWITCH RED WIRE RED/YEL WIRE RIGHT FRONT MULTIPLEX NETWORK DOOR ECU (FRONT PASSENGER'S DOOR) RIGHT POWER SEAT MEMORY SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY WIPER/ WASHER SYSTEM

BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DCM DISPLAY, NAVIGATION MODULE DISPLAY ENGINE ROOM R/B 5 (RIGHT FRONT OF ENGINE COMPT) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INSTRUMENT CLUSTER SYSTEM LEFT FRONT SPEAKER ASSEMBLY 2 LT BLU WIRE LT GRN WIRE MACC MCI- MCO- MCVD MI+ MICROPHONE, MICROPHONE AMPLIFIER MIN MO- MUTE NCA WIRE ORG/ WIRE P-ACC FUSE PASSENGER SIDE J/B PNK WIRE RADIO (RIGHT END OF DASH) FUSE REAR SEAT ENTERTAINMENT CIRCUIT REAR SEAT ENTERTAINMENT CIRCUIT GPS ANTENNA RED WIRE REV RIGHT FRONT SPEAKER ASSEMBLY 2 RSE SGND SLDI SLDO SPI+ SPO- SWG UGND USB USBG USBV VIO WIRE VMTR VOR- VOT+ W/ LEXUS ENFORM OR SAFETY CONNECT W/ REAR SEAT ENTER- TAINMENT SYSTEM W/ REAR SEAT ENTERTAINMENT SYSTEM W/O LEXUS ENFORM OR SAFETY CONNECT W/O REAR SEAT ENTERTAINMENT SYSTEM WHT WIRE WHT/BLK WIRE WUO YEL WIRE

1 2 3 4 5 6 7 8 AGND VV+ VAR+ VAL+ SG VV- VA- ADPG 28 20 CANN CANP 31 32 TX+ TX- 6 5 CANL CANH AGND ALI ALO ARI ARO ARON AIR ASGN AUTO AUXI AUXO BLK WIRE BLU WIRE BRN WIRE CENTER JUNCTION BOX 3 (RIGHT SIDE OF DASH) COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM REAR SEAT COMPUTER DATA LINES SYSTEM REAR SEAT ENTERTAINMENT CIRCUIT DISPLAY, NAVIGATION MODULE DISPLAY DRIVER SIDE J/B ELECTRIC PARKING BRAKE SWITCH ENTERTAINMENT CIRCUIT GRN WIRE GRY WIRE IEEE IEEE CONNECTOR (LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE LUGGAGE COMPT) MAIN BODY ECU (LEFT END OF DASH) MI+ MO- MULTI-MEDIA MODULE NAVIGATION ASSEMBLY (W/ DVD) NCA WIRE NTSC NTSC VV+ NTSO ORG/ WIRE PARKING ASSIST ECU (RIGHT END OF DASH) PARKING BRAKE ECU ASSEMBLY (LEFT SIDE OF LUGGAGE COMPT) PKBO PNK WIRE PULL PUSH QUARTER PANEL) RADIO ANTENNA RADIO RECEIVER ASSEMBLY REAR JUNCTION BLOCK ECU REAR SEAT ENTERTAINMENT CIRCUIT RED WIRE SG VV- SGND SLD SLDI STEREO JACK ADAPTER SUPPLEMENTAL RESTRAINTS SYSTEM SYSTEM UDI- UDO+ UESG UJSG ULO+ UPO URO+ VGN VIO WIRE VLI VRI W/ HDD WHT WIRE WHT/BLK WIRE WUI WUO YEL WIRE

1 2 3 4 5 6 TRG- 24 6 18 19 17 16 15 14 25 DCTY 5 6 15 16 9 14 CANH CANL CANN CANP SPD 6 22 15 23 5 25 11 17 14 ALTB BDR BDRJ BLK WIRE BLU WIRE BRN WIRE CANN CANP CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CGBI CGBO CLGI CLGO COMPUTER DATA COMPUTER DATA LINES SYSTEM CPUB D-ACC FUSE DLE DOOR DRIVER SIDE J/B (LEFT END OF DASH) FUSE GRN WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IG STP INDS INDW SWIL PNK WIRE INSTRUMENT CLUSTER SYSTEM EXTERIOR LIGHTS SYSTEM LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LEFT REAR DOOR COURTESY SWITCH (LEFT "C" PILLAR) LINES SYSTEM LOCK LSW LSWE LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) ORG/ WIRE OSCB OSCE PCTY PML PMUL PNK WIRE POWER WINDOWS) PWE PWS RCTY RED WIRE RIGHT FRONT CONTROL SWITCH ASSEMBLY RIGHT FRONT DOOR COURTESY SWITCH (RIGHT "B" PILLAR) RIGHT FRONT DOOR OUTSIDE HANDLE (FRONT PASSENGER'S DOOR) RIGHT FRONT DOOR W/ MOTOR LOCK ASSEMBLY (FRONT PASSENGER'S RIGHT FRONT MULTIPLEX NETWORK DOOR ECU (FRONT PASSENGER'S DOOR) RIGHT REAR DOOR COURTESY SWITCH (RIGHT "C" PILLAR) RIGHT SECURITY INDICATOR SEL SEL CLGB SENS GND PNK WIRE SENS SHIFT INTERLOCK SYSTEM SID- SIDI SIG SLP SLR+ STOP FUSE SYSTEM TRG+ TRG- CLG TRNL TRNR LCTY UNLOCK UNLOCK DETECTION SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

9 20 10 IB GIB VIB BLK WIRE BLU WIRE BRN WIRE BUSBER MODULE 1 BUSBER MODULE 2 BUSBER MODULE 3 BUSBER MODULE 4 HV BATTERY CHARGE IND COMBINATION METER COMPUTER DATA LINES SYSTEM GBO GRN WIRE GRY WIRE HOT IN ON OR START ENGINE ROOM J/B 2 (RIGHT SIDE OF P J/B FUSE ENGINE COMPT) HV BATTERY HYBRID VEHICLE BATTERY IGCT BTH+ BTH- IDH GND LT BLU WIRE LT GRN WIRE MASTER IND MICRO COMPUTER MPX-B ORG/BLK WIRE ORG/WHT WIRE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE POWER SPLY RED WIRE SERVICE PLUG TBO VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE