Lexus LS III facelift (2003-2006) ih (at right side of shift lever) Wiring diagrams

1 2 4 SHB SHFL SGF 2 3 1 SHRL SHB SHG 22 23 21 24 19 SHFL 3 1 7 8 2 BAT 3 2 1 SHB SHRL SHG 3 2 1 SHG SHRR SHB ABS IG FUSE AFS OFF IND AFS OFF SWITCH BLK WIRE BLK/RED WIRE BLU (OR VIO/GRN) WIRE BLU WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER DOME FUSE DRIVER SIDE J/B (AT LEFT KICK PANEL) FUSE GATEWAY ECU (BEHIND LEFT END OF DASH) GAUGE FUSE GRN WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ON OR START 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) J/C 10 (BEHIND UPPER CENTER OF DASH) J/C 12, 13 (BEHIND UPPER CENTER OF DASH) J/C 16, 17 (BEHIND UPPER CENTER OF DASH) J/C 17 (BEHIND UPPER CENTER OF DASH) LEFT REAR HEIGHT CONTROL SENSOR (LEFT REAR OF LUGGAGE COMPT) LT GRN WIRE LT GRN/BLK (OR VIO/YEL) WIRE LT GRN/BLK WIRE LT GRN/RED (OR BLK) WIRE LT GRN/RED WIRE ORG/ WIRE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK SHRR WIRE PNK WIRE PNK/BLU WIRE REAR HEIGHT CONTROL SENSOR (UNDER CENTER REAR OF VEHICLE) RED WIRE RIGHT END OF DASH) RIGHT REAR HEIGHT CONTROL SENSOR (RIGHT SIDE OF LUGGAGE COMPT) SHORT CONNECTOR SHRL SPEEDO- METER STEERING SENSOR (INSIDE TOP OF STEERING COLUMN) VIO WIRE VIO/GRN WIRE VIO/YEL WIRE W/ ELECTRONIC MODULATED AIR SUSPENSION W/O ELECTRONIC MODULATED AIR SUSPENSION WHT WIRE WHT/BLK WIRE YEL WIRE

BACK-UP LIGHT SWITCH (PARK/NEUTRAL POSITION SWITCH) BLK WIRE BLU WIRE BM (AT LEFT REAR QUARTERPANEL) BRN WIRE FUSIBLE LINK BLOCK (ON RIGHT REAR OF ENGINE COMPT) GRN WIRE HOT AT ALL TIMES IH (AT RIGHT SIDE OF SHIFT LEVER) J/C 1, 2 (LEFT FRONT OF ENGINE COMPT) J/C 24, 25 (ON LEFT REAR OF LUGGAGE COMPT LID) JC-23 LEFT REAR COMBINATION LEFT BACK-UP LIGHT LIGHT LUG J/B FUSE LUGGAGE ROOM J/B ECU BK/UP MPX P-GND RED WIRE RIGHT BACK-UP LIGHT RIGHT REAR COMBINATION LIGHT VIO WIRE WHT WIRE WHT/BLK WIRE

ALT FUSIBLE LINK ALT-S FUSIBLE LINK BATTERY BATTERY GROUND BLK WIRE BLU WIRE CAHL CHARGE INDICATOR COMBINATION METER COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B ENGINE ROOM 1 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FR IG FUSE FUSIBLE LINK BLOCK (ON RIGHT REAR OF ENGINE COMPARTMENT) GAUGE FUSE GENERATOR GRY/BLK WIRE HOT IN ON OR START IH (AT RIGHT SIDE OF SHIFT LEVER) JUNCTION CONNECTOR 1, 2 (LEFT FRONT OF ENGINE COMPT) JUNCTION CONNECTOR 16, 17 (BEHIND UPPER CENTER OF DASH) NCA WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

9 7 5 15 16 ILE FSPT CSPT LCTY RCTY AIR BAG BLK WIRE BLU WIRE BLU/YEL WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM CTY DOME FUSE DOOR DOOR IND DRIVER SIDE J/B (AT LEFT KICK PANEL) FUSE GAUGE FUSE GRN WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ON OR START IGNITION KEY CYLINDER LIGHT (TRANSPONDER KEY AMPLIFIER) IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) IK (AT RIGHT SIDE OF DASH) II (AT RIGHT SIDE OF SHIFT LEVER) J/C 10, 11 (BEHIND UPPER CENTER OF DASH) J/C 16, 17 (BEHIND UPPER CENTER OF DASH) LED LEFT FRONT STEP LIGHT LEFT FRONT VANITY LIGHT LEFT REAR INTERIOR LIGHT LEFT REAR STEP LIGHT LEFT REAR VANITY LIGHT MPX MPX-B OVERHEAD J/B (AT FRONT OF ROOF OPENING) PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PASSENGER SIDE J/B ECU (AT RIGHT KICK PANEL) RED WIRE RED/BLU WIRE RIGHT FRONT STEP LIGHT RIGHT FRONT VANITY LIGHT RIGHT REAR INTERIOR LIGHT RIGHT REAR STEP LIGHT RIGHT REAR VANITY LIGHT SECURITY FUSE VIO WIRE VIO/GRN WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/GRN WIRE

ABS-IG FUSE (AT LEFT KICK PANEL) BLK/RED WIRE BLU/BLK WIRE BLU/YEL WIRE COMBINATION METER DOME FUSE DRIVER SIDE J/B FUSE GAUGE FUSE GRN WIRE HOT AT ALL TIMES HOT IN ON OR START IG SPD GND IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) JUNCTION CONNECTOR 10 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 12 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 16 (BEHIND UPPER CENTER OF DASH) PASSENGER SIDE J/B PPS ECU (RIGHT SIDE OF DASH) PPS SOLENOID (ON LEFT FRONT OF ENGINE COMPT) RED WIRE SOL- SOL+ SPEEDOMETER VIO/WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE COMBINATION METER COMBINATION SWITCH IG CRAL CRAR SIDR DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B (AT LEFT KICK PANEL) MPX-IG FUSE DRIVER SIDE J/B ECU STPI EA (AT RIGHT RADIATOR SIDE SUPPORT) EA (AT RIGHT RADIATOR SIDE SUPPORT) EC (AT LEFT RADIATOR SIDE SUPPORT) EC (AT LEFT RADIATOR SIDE SUPPORT) ENGINE ROOM 2 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FRONT CONTROLLER FTAIL FUSE GRN WIRE GRN/BLK WIRE GRN/YEL WIRE HAZ FUSE HAZARD SWITCH HOT AT ALL TIMES HOT AT ALL TIMES DRIVER SIDE J/B (AT LEFT KICK PANEL) STOP FUSE HOT AT ALL TIMES PASSENGER SIDE J/B (AT RIGHT KICK PANEL) HOT IN ON OR START IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) J/C 13 (BEHIND UPPER CENTER OF DASH) J/C 14, 15 (BEHIND UPPER CENTER OF DASH) LEFT FRONT PARKING LIGHT LEFT FRONT SIDE MARKER LIGHT LEFT FRONT TURN SIGNAL LIGHT RIGHT FRONT TURN SIGNAL LIGHT LEFT TURN SIGNAL IND ORG/ WIRE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) POWER TILT, POWER TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) RED WIRE RIGHT FRONT SIDE MARKER LIGHT RIGHT FRONT PARKING LIGHT RIGHT TURN SIGNAL IND SIDL STOPLIGHT SWITCH TURN LH TURN RH HAZ VIO WIRE VIO/GRN WIRE W/ COMPASS W/O COMPASS WHT WIRE WHT/BLK WIRE YEL 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

1 2 3 4 5 6 7 8 ECUB 28 9 20 21 29 MSWE B+ PNK WIRE BLK WIRE BLK/RED WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER DOOR ECU (INSIDE FRONT OF LEFT FRONT DOOR) DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVING POSITION MEMORY SWITCH FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IG (AT LEFT SIDE OF DASH) IH (AT RIGHT SIDE OF SHIFT LEVER) J/C 13 (BEHIND UPPER CENTER OF DASH) J/C 14, 15 (BEHIND UPPER CENTER OF DASH) J/C 9 (BEHIND LEFT END OF DASH) LT GRN WIRE LT GRN/BLK WIRE MMRY MPX-IG FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK PNK WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE POWER TILT, POWER TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) PUSH RED WIRE RED/BLK WIRE RED/BLU WIRE SHIELD STEERING LOCK ECU (W/ SMART KEY SYSTEM) (LEFT SIDE OF DASH) TELESCOPIC MOTOR, POSITION SENSOR (INSIDE BASE OF STEERING COLUMN) TI, TE FUSE TILT MOTOR, POSITION SENSOR (INSIDE BASE OF STEERING COLUMN) TRANSPONDER KEY COMPUTER (BEHIND UPPER CENTER OF DASH) UNLOCK WARNING SWITCH (W/ SMART KEY SYSTEM) UNLOCK WARNING SWITCH (W/O SMART KEY SYSTEM) VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE

1 6 5 17 4 25 26 23 2 3 8 19 20 16 GND BDR SIG 2 4 5 6 15 16 17 22 23 25 30 AUTO 8 7 6 5 +5 DATA RSSI AUTO BL (AT LEFT REAR FLOOR PARTITION PANEL) BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/RED WIRE BRN/RED WIRE BRN/WHT WIRE BZR BZRG COMPUTER DATA LINES SYSTEM CPUB CTY DN UP PLS LMT SGND WLSW D DOOR FUSE D-ACC FUSE DDN DOOR LOCK CONTROL RECEIVER (INNER MIRROR) (RIGHT REAR OF DRIVER SIDE J/B (AT LEFT KICK PANEL) DUP GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE 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) JUNCTION CONNECTOR 10, 11 (BEHIND UPPER JUNCTION CONNECTOR 12, 13 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 14, 15 (BEHIND UPPER CENTER OF DASH) KEYLESS BUZZER (INSIDE TOP OF LEFT FRONT FENDER, NEAR BASE OF "A" PILLAR) KEYLESS BUZZER ON/OFF SWITCH LEFT FRONT POWER WINDOW MOTOR (IN LEFT FRONT DOOR) LMT LT BLU WIRE LUGGAGE COMPT) MPX-IG FUSE ORG/ WIRE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PLS PNK WIRE PNK/BLU WIRE PNK/GRN WIRE POWER WINDOW MASTER SWITCH PWS MUP MDN PWE RDA RSSI RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SECURITY FUSE SWITCH THEFT DETERRENT ECU (BEHIND UPPER RIGHT CENTER OF DASH) VIO WIRE VIO/GRN WIRE VIO/WHT WIRE VIO/YEL WIRE W/ SMART KEY W/O SMART KEY W/L WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 IG BLU WIRE D-ACC FUSE DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) STPI GAUGE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START IH (AT RIGHT SIDE OF SHIFT LEVER) IK (AT RIGHT SIDE OF DASH) J/C 11 (BEHIND UPPER CENTER OF DASH) KEY INTERLOCK SOLENOID KLS+ LT GRN WIRE ORG/ WIRE RED WIRE SHIFT LOCK CONTROL ECU (BELOW SHIFT LEVER, IN CENTER CONSOLE) STEERING LOCK ECU (W/ SMART KEY) (LEFT SIDE OF DASH) STOP FUSE STOPLIGHT SWITCH (ABOVE BRAKE PEDAL, ON BRACKET) UNLOCK WARNING SWITCH W/ SMART KEY W/O SMART KEY WHT WIRE WHT/BLK WIRE YEL/RED WIRE