Lexus LS III facelift (2003-2006) bo (at right rear quarterpanel) Wiring diagrams

AIR PURIFIER LIGHT A/C AMPLIFIER BLK WIRE BN (AT RIGHT REAR FLOOR PARTITION PANEL) BO (AT RIGHT REAR QUARTERPANEL) BQ (AT RIGHT REAR SEAT BACK) CIGARETTE LIGHTER (REAR) CLIMATE CONTROL SEAT ECU (FRONT PASSENGER'S SEAT) CLIMATE CONTROL SEAT ECU (RIGHT REAR SEAT) COOL BOX ILLUMINATION SMOKE SENSOR DOOR LOCK CONTROL RECEIVER FRONT PASSENGER DOOR ECU IR (UNDER RIGHT FRONT SEAT) J/C 27 (FORWARD OF RIGHT REAR FENDERWELL) J/C 28, 29 (REARWARD OF RIGHT REAR FENDERWELL) J/C 30 (REARWARD OF RIGHT REAR FENDERWELL) JUNCTION CONNECTOR LEFT REAR SEAT HEATER RIGHT REAR SEAT HEATER LUGGAGE OSCILLATOR (INNER) NAVIGATION ECU POWER SEAT CONTROL SWITCH (FRONT PASSENGER'S SEAT LUMBAR SUPPORT) POWER SEAT CONTROL SWITCH (FRONT PASSENGER'S SEAT) POWER SEAT POSITION SENSOR (REAR PASSENGER'S RIGHT SEAT SLIDE CONTROL) REAR BLOWER MOTOR REAR CIGARETTE LIGHTER REAR DAMPER SERVO MOTOR REAR OF LUGGAGE COMPT) REAR WINDOW DEFOGGER RIGHT FRONT SEAT HEATER RIGHT REAR DOOR ECU RIGHT REAR HEAD REST LIMIT SWITCH RIGHT REAR PAD WEAR INDICATOR SWITCH (RIGHT REAR ABS SPEED SENSOR) RIGHT REAR SEAT ECU RIGHT REAR SEAT HEATER RIGHT REAR SUSPENSION CONTROL ACTUATOR RIGHT VIBRATION SEAT ECU ROOM OSCILLATOR (REAR) SEAT HEATER SWITCH (REAR) RIGHT ARMREST COURTESY SWITCH (W/ REAR SEAT HEATER) SGND SNSE STEREO COMPONENT AMPLIFIER STEREO COMPONENT TUNER TELEPHONE TRANSCEIVER/ SPEAKER RELAY TELEVISION CAMERA ECU W/ REAR POWER SEAT W/O REAR POWER SEAT WHT WIRE WHT/BLK WIRE

25 24 CAN H CAN L 4 16 MPX- PIND 5 14 MOPS MOL A/B A/C CONTROL ASSEMBLY A/T D A/T R ABS IND. AFS OFF IND AT-N AT-P AT-S BEAM IND BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BO (AT RIGHT REAR QUARTERPANEL) BRAKE FLUID LEVEL WARNING SWITCH (ON BRAKE MASTER CYLINDER RESERVOIR) BRAKE IND BRN WIRE CAN H CAN L LBL- PKB CENTER CLUSTER INTEGRATION PANEL CHARGE IND CLOCK (W/O NAVIGATION) COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE IND DISPLAY MULTI DOME FUSE DOOR IND DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B (AT LEFT KICK PANEL) GAUGE FUSE EC (AT LEFT RADIATOR SIDE SUPPORT) ECT PWR IND ECT SNOW IND EF (ON LEFT CYLINDER HEAD) ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPARTMENT, IN PROTECTIVE CASE) ENGINE CONTROLS SYSTEM ELECTRONIC SUSPENSION SYSTEM ENGINE OIL LEVEL SENSOR (ON LEFT CENTER OF ENGINE) EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM FRONT FOG IND FSME FSMS FSMV FSSE FSSS FSSV FUEL GAUGE FUEL IND FUEL SENDER (MAIN) (UNDER LEFT REAR OF VEHICLE, FORWARD OF LEFT REAR FENDERWELL) FUEL SENDER (SUB) (FORWARD OF RIGHT REAR FENDERWELL) GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRY WIRE GRY/BLK WIRE HEAD IND (USA) (CANADA) TAIL IND HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) ILL+ PBEW INTERIOR LIGHTS SYSTEM ELECTRONIC SUSPENSION SYSTEM J/C 10, 11 (BEHIND UPPER CENTER OF DASH) J/C 12 (BEHIND UPPER CENTER OF DASH) J/C 14, 15 (BEHIND UPPER CENTER J/C 16, 17 (BEHIND UPPER CENTER OF DASH) J/C 29 (REARWARD OF RIGHT REAR FENDERWELL) J/C 30 J/C 4 (LEFT FRONT OF ENGINE COMPARTMENT) LEFT TURN IND LT BLU WIRE LT GRN WIRE LT GRN/RED WIRE LUGGAGE COMPT) LUGGAGE ROOM J/B ECU (ON LEFT SIDE OF MALFUNCTION IND LAMP MASTER IND MPX MPX+ COMPUTER DATA LINES SYSTEM MPX- MULTI-DISPLAY NAVIGATION, ENGINE CONTROLS, ELECTRONIC POWER STEERING, SOUND SYSTEMS NUM ODO OF DASH) OF DASH, ON PARKING BRAKE MECHANISM) ORG/ WIRE P-ACC FUSE P-IG FUSE PARKING BRAKE SWITCH (BEHIND LEFT END PASSENGER SIDE J/B PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PASSENGER SIDE J/B (AT RIGHT KICK PANEL) FUSE PASSENGER SIDE J/B ECU PBEW PBLT PNK WIRE PNK/BLK WIRE RED WIRE RED/ LT GRN WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT PAD WEAR INDICATOR SWITCH (RIGHT FRONT ABS SPEED SENSOR) RIGHT REAR PAD WEAR INDICATOR SWITCH (RIGHT REAR ABS SPEED SENSOR) RIGHT TURN IND RSET SEAT BELT IND SHIFT RANGE POSITION INDICATOR LIGHT SKID CONTROL ECU W/ ACTUATOR (BEHIND LEFT SIDE OF DASH) SLIP IND SPEEDOMETER SRS IND TAC TACHOMETER TAMOUT TC TAMO IG+ TECH TEMS TEMS SPORT IND TRAC OFF IND TRIP TRIP SWITCH VIO WIRE VIO/GRN WIRE VIO/RED WIRE VIO/WHT WIRE WATER TEMP GAUGE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

ABSORBER CONTROL SWITCH (W/ ELECTRONIC SUSPENSION) AFS OFF SWITCH BLK WIRE BN (AT RIGHT REAR FLOOR PARTITION PANEL) BO (AT RIGHT REAR QUARTERPANEL) CENTER CLUSTER INTEGRATION PANEL (W/O NAVIGATION) CIGARETTE LIGHTER (FRONT) CIGARETTE LIGHTER (REAR) CLOCK (W/O NAVIGATION) CONSOLE BOX ILLUMINATION DRIVER'S SIDE A/C ROOM TEMPERATURE SWITCH ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SWITCH FRONT PASSENGER'S SIDE A/C ROOM TEMPERATURE SWITCH FUEL LID OPENER SWITCH ILLUMINATION GLOVE BOX LIGHT 1 GRN WIRE HAZARD SWITCH HEIGHT CONTROL SWITCH (W/ ELECTRONIC SUSPENSION) II (AT RIGHT SIDE OF SHIFT LEVER) J/C 16, 17 (BEHIND UPPER CENTER OF DASH) J/C 27 J/C 30 LT BLU WIRE MIRROR SWITCH (OUTER MIRROR SWITCH) MULTI-DISPLAY (W/ NAVIGATION) OVERHEAD J/B (W/ GARAGE DOOR OPENER) (AT FRONT OF ROOF OPENING) RADIO, PLAYER REAR ARMEST COURTESY SWITCH REAR SEAT ILL+ HEATER SWITCH (W/ REAR ILL- SEAT HEATER W/O REAR POWER SEAT) RED WIRE RIGHT REAR SEAT MEMORY SWITCH (W/ REAR POWER SEAT) TRANSMISSION CONTROL SWITCH WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE

+B AUI- AUO- VOL+ VOL- REV 1 2 3 4 5 6 7 8 9 10 +B IG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 IG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 AUI+ AUO+ PNK WIRE 1 2 3 4 5 6 7 8 9 10 VR BACK BLK WIRE BLU WIRE BLU/YEL WIRE BO (AT RIGHT REAR QUARTERPANEL) BRN WIRE CANL CANH VG CG BATT CGND CB+ COMPUTER DATA LINES SYSTEM CV- CV+ D-ACC FUSE DRIVER MPX-IG SIDE J/B FUSE (AT LEFT KICK PANEL) GATEWAY ECU (BEHIND LEFT END OF DASH) GRN WIRE GRY WIRE GRY/BLK WIRE GTX+ SIL GTX- HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START J/C 10, 11 (BEHIND UPPER CENTER OF DASH) J/C 30 (REARWARD OF RIGHT REAR FENDERWELL) J/C 36, 37 (CENTER OF DASH) J/C 45, 47 (RIGHT SIDE OF DASH) J/C 49, 50 (RIGHT REAR OF VEHICLE) LT BLU WIRE LT GRN WIRE LUGGAGE ROOM J/B MIC - MPX NAVIGATION ECU (ON LOWER RIGHT SIDE OF LUGGAGE COMPT) NCA WIRE ORG/ WIRE PASSENGER SIDE J/B ECU (AT RIGHT KICK PANEL) PASSENGER SIDE J/B FUSE (AT RIGHT KICK PANEL) PNK/BLU WIRE RED WIRE RED/BLU WIRE RR ACC FUSE RR ECU-B FUSE RR IG FUSE SNSE SOUND SYSTEMS SYNC TEL FUSE TELEVISION CAMERA TELEVISION CAMERA ECU (RIGHT REAR OF LUGGAGE COMPT) TX+ TX- SYNC VR TX+ VG VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE

A/C FUSE D P/SEAT FUSE ABS-IG FUSE D RR-IG FUSE AIRSUS FUSE AIR CONDITIONING SYSTEM AIR CONDITIONING, BODY COMPUTER SYSTEMS ANTI-THEFT, BODY COMPUTER, DOOR LOCKS, POWER WINDOWS SYSTEMS BANC BLK WIRE BLK/WHT WIRE BLU WIRE BO (AT RIGHT REAR QUARTERPANEL) BODY COMPUTER GARAGE DOOR, INTERIOR LIGHTS SYSTEMS BODY COMPUTER, ANTI-THEFT SYSTEMS BODY COMPUTER, HORNS SYSTEMS CRUISE CONTROL, ANTI-LOCK BRAKES SYSTEMS CRUISE CONTROL, HEADLIGHTS, ELECTRONIC SUSPENSION, ANTI-LOCK BRAKES SYSTEMS D B/ANC FUSE D S/HTR FUSE D-ACC FUSE D-CIG FUSE D-ACC RELAY DRIVER SIDE J/B DRIVER SIDE J/B ECU DRIVER SIDE J/B ECU FROM SECURITY ELECTRONIC SUSPENSION SYSTEM FROM D S/HTR FROM FUSIBLE LINK BLOCK GAUGE FUSE GRN WIRE GRY WIRE IG (AT LEFT SIDE OF DASH) J/C 30 (REARWARD OF RIGHT REAR FENDERWELL) MEMORY SYSTEM NAVIGATION SYSTEM OBD FUSE PANEL FUSE PASSIVE RESTRAINTS, BODY COMPUTER SYSTEMS PNK PNK WIRE POWER OUTLET PWR OUTLET FUSE REAR CIGARETTE LIGHTER RED WIRE RED/WHT WIRE RELAY IG SEATS SYSTEM SECURITY FUSE SHIFT INTERLOCK SYSTEM STOP FUSE FUSE TI, TE FUSE TO ENGINE ROOM J/B 1 TO GAUGE TO IGNITION SWITCH (DIAGRAM 3 OF 5) TO J/C 12, J/C 13 (DIAGRAM 3 OF 5) TO PANEL TO PASSENGER SIDE J/B (P-ACC RELAY) (DIAGRAM 3 OF 5) WHT WIRE YEL WIRE

1 2 3 4 +5 RSSI GND DATA 1 3 5 +B 3 4 5 GND 6 7 8 RSSI DATA +5 AIR BAG SENSOR ASSEMBLY (FRONT OF CENTER CONSOLE) BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/YEL WIRE BO (AT RIGHT REAR QUARTERPANEL) BRN WIRE BRN/RED WIRE BRN/WHT WIRE CNSL COMPUTER DATA LINES SYSTEM D-ACC FUSE DOOR LOCK CONTROL RECEIVER (INNER MIRROR) (RIGHT REAR OF LUGGAGE COMPT) DOOR LOCK CONTROL RECEIVER (RIGHT REAR OF LUGGAGE COMPT) DRIVER SIDE J/B (AT LEFT KICK PANEL) FRONT ROOM OSCILLATOR (IN CENTER CONSOLE) GRN WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE GSW GSW RDA RSSI HOT AT ALL TIMES HOT IN ON OR ACC IG (AT LEFT SIDE OF DASH) IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) IK (AT RIGHT SIDE OF DASH) IND BZR J/C 10, 11 (BEHIND UPPER CENTER OF DASH) J/C 14, 15 (BEHIND UPPER CENTER OF DASH) J/C 28, 29 (REARWARD OF RIGHT REAR FENDERWELL) J/C 30 KEYLESS BUZZER ON/OFF SWITCH LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MPX ORG/ WIRE OUTER LUGGAGE OSCILLATOR (BEHIND RIGHT SIDE OF REAR BUMPER) PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK/BLK WIRE PNK/BLU WIRE RCO RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE SECURITY FUSE SECURITY INDICATOR LIGHT (RHEOSTAT) SEID SH- BZRG IG SMART KEY SYSTEM CANCEL SWITCH THEFT DETERRENT ECU (BEHIND UPPER RIGHT CENTER OF DASH) THEFT DETERRENT HORN (ON RIGHT REAR OF ENGINE COMPT) VIO WIRE VIO/GRN WIRE VIO/RED WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/GRN WIRE

1 2 3 13 23 27 28 SEL TRG+ SENS OSCB CLGO OSCE TRG- 1 2 3 4 5 6 7 10 +B CLG SENS SGT 1 2 4 5 6 7 14 15 16 20 21 23 24 A- A+ 1 2 6 7 15 18 20 22 24 26 CPUB BDR GROUND CTY 1 2 7 20 A- A+ LSW CPSE BLK WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BN (AT RIGHT REAR FLOOR BO (AT RIGHT REAR QUARTERPANEL) BRN WIRE CAM POS CLGI PCTI SIG CLOSER MOTOR COMBINATION SWITCH ASSEMBLY COMPUTER DATA LINES SYSTEM CPSE DLEL POLE HALF DOOR LOCK MOTOR FULL FULL LATCH SW GND SEL GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE HALF LATCH SW PAWL SW J/C 27 PARTITION PANEL) J/C 30 LOCK POS SW CAM POS LSW ORG/ WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE REAR DOOR) RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT REAR DOOR COURTESY SWITCH (AT RIGHT "C" PILLAR) RIGHT REAR DOOR ECU (INSIDE RIGHT RIGHT REAR DOOR OSCILLATOR RIGHT REAR DOOR OUTSIDE HANDLE SGT TRG+ TRG- VIO WIRE VIO/YEL WIRE 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 -B 6 21 GTX+ GTX- AMP P P/SEAT FUSE ATX+ MTX+ UTX+ MUTE ATX- MTX- UTX- BLK WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BO (AT RIGHT REAR QUARTERPANEL) BRN WIRE GATEWAY ECU (BEHIND LEFT END OF DASH) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT WITH L-ACC RELAY ENERGIZED IJ (AT RIGHT DASH BRACE) J/C 28, 29 (REARWARD OF RIGHT REAR FENDERWELL) JUNCTION CONNECTOR 14, 15 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 28, 29 (REARWARD OF RIGHT REAR FENDERWELL) JUNCTION CONNECTOR 30 LT GRN WIRE LUGGAGE ROOM J/B (ON LEFT SIDE OF LUGGAGE COMPT) MULTI-DISPLAY NCA WIRE P-ACC FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) RADIO 1 FUSE PNK WIRE R- L- GND RADIO, PLAYER RED WIRE RR ACC FUSE RR ECU-B FUSE RR+ RR- RL+ RL- MUTE SG FR+ FL+ STEREO COMPONENT TUNER (ON LOWER RIGHT SIDE OF LUGGAGE COMPARTMENT) TEL FUSE TX+ TXS+ MUTE R+ L+ SGND TX- TXS- TXM- TXM+ W/ NAVIGATION WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 -B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MUTE L- L+ R- R+ 1 2 3 4 5 6 7 8 B+ 7 SPEAKER AUI+ AUI- AUO- AUO+ BLK WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BO (AT RIGHT REAR QUARTERPANEL) BP (AT LEFT REAR SEAT BACK) BRN WIRE COMBINATION METER COMPT, BEHIND TRIM) FL+ FR+ FL- FR- RL- RR- GND RL- RR- GRN WIRE GRN/WHT WIRE GRY WIRE JUNCTION CONNECTOR 16, 17 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 30 LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER LEFT REAR DOOR SPEAKER LEFT REAR TWEETER (9 SPEAKER) LT BLU WIRE LT GRN WIRE NAVIGATION ECU (IF EQUIPPED) (ON LOWER RIGHT SIDE OF LUGGAGE COMPARTMENT) ORG/ WIRE PNK WIRE RED WIRE RIGHT FRONT TWEETER RIGHT REAR DOOR SPEAKER RIGHT REAR TWEETER (9 SPEAKER) STEREO COMPONENT AMPLIFIER (ON RIGHT SIDE OF LUGGAGE TDX- TDX+ N-MUT TFL TFR- TFL+ TFR+ B+ TMUT TX+ GND TX+ MTX+ TX- TX+ VIO WIRE VIO/WHT WIRE W/ NAVIGATION W/O NAVIGATION WFL- WFR- WHT WIRE WHT/BLK WIRE WHT/RED WIRE WOOFER YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 -B 6 21 GTX+ GTX- AMP P P/SEAT FUSE ATX+ MTX+ UTX+ MUTE ATX- MTX- UTX- BLK WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BO (AT RIGHT REAR QUARTERPANEL) BRN WIRE GATEWAY ECU (BEHIND LEFT END OF DASH) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT WITH L-ACC RELAY ENERGIZED IJ (AT RIGHT DASH BRACE) J/C 28, 29 (REARWARD OF RIGHT REAR FENDERWELL) JUNCTION CONNECTOR 14, 15 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 28, 29 (REARWARD OF RIGHT REAR FENDERWELL) JUNCTION CONNECTOR 30 (REARWARD OF RIGHT REAR FENDERWELL) LT GRN WIRE LUGGAGE ROOM J/B (ON LEFT SIDE OF LUGGAGE COMPT) MULTI-DISPLAY NCA WIRE P-ACC FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) RADIO 1 FUSE PNK WIRE R- L- GND RADIO, PLAYER RED WIRE RR ACC FUSE RR ECU-B FUSE RR+ RR- RL+ RL- MUTE SG FR+ FL+ STEREO COMPONENT TUNER (ON LOWER RIGHT SIDE OF LUGGAGE COMPARTMENT) TEL FUSE TX+ TXS+ MUTE R+ L+ SGND TX- TXS- TXM- TXM+ W/ NAVIGATION WHT WIRE WHT/BLK WIRE YEL WIRE