Lexus SC II (2001-2005) ih (under steering column) Wiring diagrams

13 33 29 30 15 MPX 5 9 10 8 +5 RSSI DATA A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) AIR BAG BLK WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BQ (AT RIGHT QUARTERPANEL) BRN WIRE BRN/WHT WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) DBIL DOME FUSE DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER'S SIDE J/B ECU ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) ENGINE ROOM 2 R/B (ON LEFT SIDE OF ENGINE COMPARTMENT, FORWARD OF STRUT TOWER) FRONT CONTROLLER FUSE GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) HOT AT ALL TIMES I/P JUNCTION BLOCK (BEHIND UPPER CENTER OF DASH) IG (LEFT SIDE OF STEERING COLUMN) IGNITION KEY CYLINDER LIGHT IH (UNDER STEERING COLUMN) ILE FSPT J/C 13 (BEHIND RIGHT SIDE OF DASH) J/C 9, 10 (BEHIND TOP LEFT END OF DASH) JC-18 LEFT FOOT LIGHT LEFT VANITY LIGHT MAP DOOR MAP MPX MPX-B ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU PBIL PERSONAL LIGHT PNK/BLU WIRE RDA RSSI RCO RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT BUCKLE SWITCH (IN RIGHT FRONT SEAT BELT BUCKLE) RIGHT FOOT LIGHT RIGHT SCUFF PLATE LIGHT RIGHT VANITY LIGHT THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) TIRE PRESSURE MONITOR RECEIVER (BEHIND CENTER OF DASH, BELOW RADIO) TRANSPONDER KEY COMPUTER (LEFT SIDE OF DASH, BEHIND GAUGE ASSEMBLY) VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WIRELESS DOOR LOCK CONTROL RECEIVER (ON CENTER OF ROOF HEADER) YEL WIRE

27 7 18 30 22 CTY CTYB CYL 6 1 BDR GND AIR BAG SENSOR ASSEMBLY (AT CENTER OF DASH, BELOW RADIO) BL (UNDER DRIVER'S SEAT) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BP (AT LEFT QUARTERPANEL) BQ (AT RIGHT QUARTERPANEL) BRN WIRE COMBINATION METER COMBINATION SWITCH CTY CTYB CYL D DOOR FUSE D-IG FUSE DOOR IND DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ENGINE ROOM 1 R/B (ON RIGHT SIDE OF ENGINE COMPARTMENT, BEHIND STRUT TOWER) GRN WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IH (UNDER STEERING COLUMN) J/C 13 (BEHIND RIGHT SIDE OF DASH) JC-17 JC-18 JC-20 LEFT DOOR COURTESY LIGHT LEFT DOOR COURTESY SWITCH LEFT LUGGAGE COMPARTMENT LIGHT LEFT SCUFF PLATE LIGHT LGCY LUGGAGE ROOM J/B (AT LEFT REAR CORNER OF LUGGAGE COMPARTMENT) LUGGAGE ROOM J/B ECU MPX MPX-B MPXB ORG/ WIRE P DOOR FUSE P-GND PASSENGER DOOR ECU (IN RIGHT DOOR) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PNK WIRE PNK/BLU WIRE POWER SEAT ECU (DRIVER'S SEAT) (UNDER DRIVER'S SEAT) POWER SEAT ECU (FRONT PASSENGER'S SEAT) (UNDER FRONT PASSENGER'S SEAT) RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT DOOR COURTESY LIGHT RIGHT DOOR COURTESY SWITCH RIGHT LUGGAGE COMPARTMENT LIGHT SKID CONTROL ECU (BEHIND LEFT END OF DASH) SLIDING ROOF CONTROL ECU (IN LEFT REAR OF LUGGAGE COMPT) TILT, TELESCOPIC ECU (BEHIND LEFT END OF DASH) VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 EC+ EC- GND 23 14 15 24 ECI- ECI+ EC+ EC- BLK WIRE BLK/ORG WIRE BLU WIRE BRN/WHT WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) DOOR LOCKS SYSTEM DRIVER DOOR ECU (IN DRIVER'S DOOR) EC MIRROR GRN WIRE GRN/RED WIRE HOT IN ON OR START IG (LEFT SIDE OF STEERING COLUMN) IH (UNDER STEERING COLUMN) INNER MIRROR JUNCTION CONNECTOR 9, 10 (BEHIND TOP LEFT END OF DASH) LEFT REMOTE CONTROL MIRROR ORG/ WIRE P-IG FUSE PASSENGER DOOR ECU (IN RIGHT DOOR) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) RED WIRE RED/BLU WIRE RIGHT REMOTE CONTROL MIRROR WHT WIRE WHT/BLK WIRE YEL WIRE

10 2 13 BUBS MPX+ MPX- AUTOMATIC LIGHT CONTROL SENSOR (BEHIND UPPER RIGHT SIDE OF DASH) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/YEL WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) CLTB CLTE CLTS COMBINATION METER COMBINATION SWITCH COMPUTER DATA LINES SYSTEM D-IG FUSE DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/B ECU FR FOG FUSE FRONT FOG IND FUSE GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) HEAD HEAD INDICATOR (EXCEPT CANADA) HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN ON OR START IG (LEFT OF STEERING COLUMN) IG (LEFT SIDE OF STEERING COLUMN) IH (UNDER STEERING COLUMN) II (ON LEFT DASH BRACE) INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 13 (BEHIND RIGHT SIDE OF DASH) LUGGAGE ROOM J/B ECU (AT LEFT REAR CORNER OF LUGGAGE COMPARTMENT) MPX+ MPX- MPX-B MPX-IG MPX-IG FUSE MPXB ORG/ WIRE PARKING BRAKE SWITCH (BEHIND LEFT SIDE OF DASH) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PNK/BLU WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE SKID CONTROL ECU (BEHIND LEFT END OF DASH) TAIL FUSE TILT, TELESCOPIC ECU (BEHIND LEFT END OF DASH) VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL 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 25 26 GND 25 17 16 FLO AIRBAG BEAM LEVEL INDICATOR BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM D-IG FUSE DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) FRONT HEIGHT CONTROL SENSOR FUSE GRN WIRE H-LP LVL FUSE HDLV HEADLIGHT BEAM LEVEL CONTROL ECU (BEHIND LEFT END OF DASH) HOT AT ALL TIMES HOT IN ON OR START IG (LEFT SIDE OF STEERING COLUMN) IH (UNDER STEERING COLUMN) JUNCTION CONNECTOR 1 (IN ENGINE ROOM 2 R/B) JUNCTION CONNECTOR 13 (BEHIND RIGHT SIDE OF DASH) MLCOM MPX MRCOM ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU PNK 1 2 3 4 5 6 WIRE PNK WIRE REAR HEIGHT CONTROL SENSOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RHG RH+ RHT RH- RHE IG SBF WNG LHG LH+ LHT LH- LHE SGF SHFL SHRL SKID CONTROL ECU (BEHIND LEFT END OF DASH) SPDL VIO WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE WNG YEL WIRE YEL/BLK WIRE YEL/RED WIRE

21 29 30 22 PWS PWE 6 1 BDR GND AIR BAG AIR BAG SENSOR ASSEMBLY (AT CENTER OF DASH, BELOW RADIO) BL (UNDER DRIVER'S SEAT) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BP (AT LEFT QUARTERPANEL) BQ (AT RIGHT QUARTERPANEL) BRN WIRE BUBS COMBINATION METER D DOOR FUSE D-IG FUSE DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ENGINE ROOM 1 R/B (ON RIGHT SIDE OF ENGINE COMPARTMENT, BEHIND STRUT TOWER) FUSE GLOVE BOX LIGHT GLOVE BOX LIGHT SWITCH GRN WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IG (LEFT SIDE OF STEERING COLUMN) IH (UNDER STEERING COLUMN) J/C 13 (BEHIND RIGHT SIDE OF DASH) JC-17 JC-18 LUGGAGE ROOM J/B (AT LEFT REAR CORNER OF LUGGAGE COMPARTMENT) LUGGAGE ROOM J/B ECU MPX MPXB ORG/ WIRE P DOOR FUSE P-GND PASSENGER DOOR ECU (IN RIGHT DOOR) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU PNK WIRE PNK/BLU WIRE POWER SEAT ECU (DRIVER'S SEAT) (UNDER DRIVER'S SEAT) POWER SEAT ECU (FRONT PASSENGER'S SEAT) (UNDER PASSENGER'S SEAT) POWER WINDOW MASTER SWITCH PWE PWS DLE RED WIRE RED/BLU WIRE RED/YEL WIRE RIGHT DOOR LOCK CONTROL SWITCH SKID CONTROL ECU (BEHIND LEFT END OF DASH) RIGHT POWER WINDOW CONTROL SWITCH SLIDING ROOF CONTROL ECU (IN LEFT REAR OF LUGGAGE COMPT) THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 ECUE IG 1 2 3 4 5 6 7 8 9 10 RCL- RCL+ SLD- SLD+ LFT- LFT+ GND +B FRV- FRV+ BL (UNDER DRIVER'S SEAT) BLK WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER'S LUMBAR SUPPORT CONTROL SWITCH DRIVER'S POWER SEAT CONTROL SWITCH DRIVER'S POWER SEAT ECU (UNDER DRIVER'S SEAT) DRIVER'S SEAT FRONT VERTICAL CONTROL SENSOR DRIVER'S SEAT FRONT VERTICAL MOTOR DRIVER'S SEAT LIFTER CONTROL SENSOR DRIVER'S SEAT LIFTER MOTOR DRIVER'S SEAT LUMBAR SUPPORT CONTROL MOTOR DRIVER'S SEAT RECLINING CONTROL SENSOR DRIVER'S SEAT RECLINING MOTOR DRIVER'S SEAT SLIDE CONTROL SENSOR DRIVER'S SEAT SLIDE MOTOR FDWN FUP GND ECUB GRY WIRE HOT AT ALL TIMES D P/SEAT FUSE HOT AT ALL TIMES TI, TE FUSE IH (UNDER STEERING COLUMN) II (ON LEFT SIDE DASH BRACE) J/C 19 JC-20 KSW TRANSPONDER KEY COMPUTER (LEFT SIDE OF DASH, BEHIND GAUGE ASSEMBLY) LDWN LT GRN WIRE LT GRN/BLK WIRE LUP ORG/ WIRE PNK/BLK WIRE PNK/BLU WIRE RCLF RCLF RCLR RCLR RED WIRE RED/BLU WIRE SGND SSRS SLDF SLDR LUP LDWN FUP SLDF SLDR SSFV SSRV SSRR PVCC FDWN IG SYSB TILT, TELESCOPIC ECU (BEHIND LEFT END OF DASH) TIM- TIM+ TEM- TEM+ UNLOCK WARNING SWITCH (BEHIND LEFT SIDE OF DASH) VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 AUI+ AUO+ 1 2 3 4 5 6 7 8 9 10 11 12 SP+ AUI+ 1 2 3 4 5 6 7 8 9 10 VR 15 5 TX- TX+ 18 5 13 19 6 9 15 2 PNK MTX- MTX+ SPD TDX- TDX+ N-MU TFL- TFL+ WIRE 3 6 TXS+ TXS- PNK WIRE 9 10 ATX- ATX+ AIR CONDITIONING SYSTEM AUO- BLK WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BO (NEAR STEREO COMPONENT AMPLIFIER) BQ (AT RIGHT QUARTERPANEL) BRN WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ENGINE ROOM 2 GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES HOT IN HOT IN ON OR ACC HOT IN ON OR START IG (LEFT SIDE OF STEERING COLUMN) IH (UNDER STEERING COLUMN) INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) J/C 12 (BEHIND RIGHT SIDE OF DASH) J/C 15 J/C 9, 10 (BEHIND TOP LEFT END OF DASH) JC-18 LEFT DOOR SPEAKER (SQUAWKER, TWEETER) LT GRN WIRE LT GRN/BLK WIRE MULTI-DISPLAY NAVI +B SP- AUI- GND NAV- NAV+ NAVO NAVIGATION AMPLIFIER (AT RIGHT REAR CORNER OF LUGGAGE COMPARTMENT) NAVIGATION ECU (AT RIGHT REAR CORNER OF LUGGAGE COMPT) NCA WIRE ORG/ WIRE P-IG FUSE PARKING BRAKE SWITCH (BEHIND LEFT SIDE OF DASH) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU PKB VG PNK OPN WIRE PNK TX- WIRE PNK/BLK WIRE R/B (ON LEFT SIDE OF ENGINE COMPARTMENT, FORWARD OF STRUT TOWER) RADIO 2 FUSE RADIO, PLAYER RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE REV STARTER FUSE STEREO COMPONENT AMPLIFIER (AT RIGHT REAR CORNER OF LUGGAGE COMPT) SYNC SYNC TX- TC SPD VR TILT TV FUSE TX+ VG VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE

1 2 3 4 5 6 QWR+ RMR- QWR- LMR- LMR+ RMR+ A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BM (UNDER PASSENGER'S SEAT) BQ (AT RIGHT QUARTERPANEL) BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) FUSE GND MPX- MPX+ GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IGN IH (UNDER STEERING COLUMN) INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) J/C 13 (BEHIND RIGHT SIDE OF DASH) JC-18 LEFT LUGGAGE COMPARTMENT DOOR DRIVE MOTOR (AT LEFT SIDE OF LUGGAGE COMPT) LEFT ROOF DRIVE MOTOR (BELOW LEFT "C" PILLAR) LLR LCR ES LOR LPRB LLRE LCRE RPR LPRE RORE ROR LT GRN WIRE LT GRN/BLK WIRE MPX-IG FUSE ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE RIGHT LUGGAGE COMPARTMENT DOOR DRIVE MOTOR (AT RIGHT SIDE OF LUGGAGE COMPT) RIGHT QUARTER POWER WINDOW MOTOR RIGHT ROOF DRIVE MOTOR (BELOW RIGHT "C" PILLAR) SIG SGND RPRB RPRE LPR RHRE SLIDING ROOF CONTROL ECU (IN LEFT REAR OF LUGGAGE COMPT) SWE CLS VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 KLS+ BLK WIRE BLU WIRE BLU/RED WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) STOP FUSE DRIVER SIDE J/B ECU (BEHIND LEFT KICK PANEL) STPI GRN WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START IG (LEFT SIDE OF STEERING COLUMN) IH (UNDER STEERING COLUMN) INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) ORG/ WIRE P-IG FUSE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) RADIO 2 FUSE RED WIRE RED/BLU WIRE SHIFT LOCK CONTROL ECU (UNDER CENTER CONSOLE, NEAR SELECTOR LEVER) SOLENOID STOPLIGHT SWITCH (ON TOP OF BRAKE PEDAL BRACKET) WHT WIRE WHT/BLK WIRE