Lexus SC I (1991-2001) wht/red Wiring diagrams

1 2 3 4 PWRL 1 2 3 8 9 10 16 BATT SNWL SNWI 2 IND 3 IND 4 IND 6 11 15 20 STP PWR A/T OIL TEMP ACCELERATOR POSITION SENSOR (RIGHT REAR OF ENGINE) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE D IND EFI FUSE EFI MAIN RELAY ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SWITCH ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID (IN TRANSMISSION) ENGINE CONTROL MODULE ENGINE CONTROLS (COMBINATION METER) ENGINE COOLANT TEMPERATURE SENSOR (RIGHT FRONT OF ENGINE) GAUGE FUSE GRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IGN FUSE IGSW MREL +B INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) JUNCTION BLOCK 1 (BEHIND LEFT KICK PANEL) JUNCTION BLOCK 3 (BEHIND CENTER OF DASH) L IND LT GRN WIRE N IND NCO+ PNK WIRE NO. 1 NO. 2 NO. 3 NO. 4 O/D DIRECT CLUTCH SPEED SENSOR (ON TRANS- MISSION) OIL ORG/ WIRE P IND PNK WIRE PWR IND R IND R/B 2 (LEFT SIDE OF ENGINE COMPT) RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE SLN- SLT- SLU+ SLU+ SLN+ SLT+ NCO- SLU- SLN- SLN- SLT- SNOW IND STARTING/ CHARGING SYSTEM STOP FUSE STOPLIGHT SWITCH (ON BRAKE PEDAL BRACKET) THROTTLE POSITION SENSOR (ON THROTTLE BODY) TRANSMISSION CONTROL SWITCH (2 - L) (NEAR GEAR SELECTOR) TRANSMISSION CONTROL SWITCH (D - 4) (NEAR GEAR SELECTOR) VEHICLE SPEED SENSOR (ON TRANS- MISSION) VIO WIRE VTA THW WHT (OR GRN) WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE

1 (OR 2) A/C CONTROL ASSEMBLY ABS ECU ABS, TRACTION ECU BLK WIRE BLK/ WHT WIRE BLOWER MOTOR CONTROL RELAY BLU/BLK WIRE BLU/RED WIRE BRN WIRE CIGARETTE LIGHTER COMBINATION METER DATA LINK CONNECTOR 3 DRIVER'S POWER SEAT CONTROL SWITCH DRIVER'S SEAT SLIDE POSITION SENSOR DRIVING POSITION MEMORY, RETURN SWITCH ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT, SEAT HEATER SWITCHES ENGINE CONTROL MODULE ENGINE CONTROL MODULE (3.0L) FROM JUNCTION FRONT VERTICAL POSITION SENSOR DRIVER'S SEAT RECLINE MOTOR FUEL LID OPENER SOLENOID GLOVE BOX LIGHT SWITCH HIGH MOUNTED STOP LIGHT JUNCTION BLOCK 3 (BEHIND CENTER OF DASH) JUNCTION CONNECTOR J/C 2 (CENTER OF REAR SHELF) LUGGAGE COMPARTMENT DOOR OPENER SWITCH PASSENGER'S SEAT BACK HEATER PASSENGERS POWER SEAT CONTROL SWITCH POWER SEAT ECU REAR VERTICAL POSITION SENSOR REAR WINDOW DEFOGGER RED/ WHT WIRE RHEOSTAT RIGHT DOOR KEY LOCK/ UNLOCK SWITCH RIGHT DOOR LOCK CONTROL SWITCH RIGHT DOOR LOCK MOTOR, DOOR UNLOCK DETECTION SWITCH, OPEN DETECTION SWITCH RIGHT REMOTE CONTROL MIRROR SHIFT LOCK ECU TILT, POWER TELESCOPIC ECU TRACTION CUT SWITCH W/ MEMORY W/O MEMORY WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE WIRELESS DOOR LOCK CONTROL ECU

1 2 3 4 5 6 IG 11 12 13 TAIL H-LP 3.0L 3.0L RIGHT LOW BEAM HEADLIGHT 4.0L AUTOMATIC LIGHT CONTROL SENSOR (LEFT SIDE OF DASH) BLK WIRE BLK/RED WIRE BLU/WHT WIRE BRN WIRE COMBINATION METER COMBINATION SWITCH CTY DAYTIME RUNNING LIGHT RELAY (MAIN) (ON J/B 1) DAYTIME RUNNING LIGHT RELAY 2 (BEHIND LEFT HEADLAMP) DAYTIME RUNNING LIGHT RELAY 3 (BEHIND LEFT HEADLAMP) DAYTIME RUNNING LIGHT RELAY 4 (BEHIND LEFT HEADLAMP) DIMMER SWITCH DRL FUSE ECU-IG FUSE ECU-B FUSE EXTERIOR LIGHTS SYSTEM (TAILLIGHT RELAY) FOG LIGHT RELAY FOGLIGHT SWITCH FUSE BLOCK (BEHIND BATTERY) GENERATOR GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE HEAD FUSE (LH-LWR) HEAD FUSE (RH-LWR) HEAD IND HEAD LH UPR FUSE HEAD RELAY HEAD RH UPR FUSE HF HI DIM HIGH BEAM IND HIGH FLASH LO TAIL HEAD AUTO OFF LIGHT CONTROL SWITCH HOT AT ALL TIMES HOT AT ALL TIMES HOT IN START OR RUN HOT AT ALL TIMES R/B 4 (BEHIND LEFT KICK PANEL, ON FRONT SIDE OF J/B 1) FOG FUSE J/B 1 (BEHIND LEFT KICK PANEL) J/B 1 (LEFT KICK PANEL) LEFT DOOR OPEN DETECTION SWITCH LEFT HIGH BEAM HEADLIGHT LEFT LOW BEAM HEADLIGHT LT GRN WIRE LT GRN/BLK WIRE MAIN FUSE PLOCK PKB LOCK CHG- PNK 1 2 3 4 5 6 7 8 9 WIRE PNK DOOR LOCKS SYSTEM WIRE PNK/BLK WIRE R/B 2 (ON LEFT SIDE OF ENGINE COMPT, BEHIND BATTERY) R/B 5 (BEHIND LEFT KICK PANEL, ON REAR SIDE OF J/B 1) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT DOOR OPEN DETECTION SWITCH RIGHT FOG LIGHT LEFT FOG LIGHT RIGHT HIGH BEAM HEAD- LIGHT WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL/BLK WIRE YEL/GRN WIRE

A/C AND ELECTRONIC POWER STEERING SYSTEMS A/C CONTROL ASSEMBLY ABS IND. ANTI-LOCK BRAKE SYSTEM BLK WIRE BLK/ORG WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE IND BRN WIRE CHARGE IND COMBINATION METER CRUISE IND DOOR IND DRIVE MONITOR ECU-B FUSE ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS SYSTEM (TURN FLASHER) FUEL FUEL INJECTOR 1 FUEL SENDER (IN FUEL TANK) GRN WIRE GRN/ YEL WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HEAD IND HEAD- LIGHTS SYSTEM HIGH BEAM IND HOT AT ALL TIMES HOT IN ON OR START HOT IN RUN GAUGE FUSE HOT WITH TAILLIGHT RELAY ENERGIZED IGN FUSE ILLUMINATION J/B 1 (LEFT SIDE OF DASH) J/B 3 (BEHIND CENTER OF DASH) J/B 3 (CENTER OF DASH) LEFT TURN IND LOW FUEL IND LT GRN WIRE LT GRN/RED WIRE MALFUNCTION IND OIL IND OIL LEVEL IND OIL PRESSURE SWITCH (LEFT SIDE OF ENG) ORG/ WIRE PANEL FUSE PNK/BLU WIRE POWER IND REAR LT IND RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RHEOSTAT RIGHT TURN IND SEAT BELT IND SNOW IND SPEEDOMETER/ ODOMETER/ TRIPMETER SRS IND STARTING/ CHARGING SYSTEM (GENERATOR) SUPPLEMENTAL RESTRAINTS SYSTEM TRAC IND TRAC OFF IND VIO WIRE VIO/WHT WIRE WARNING SYSTEM WASHER LEVEL IND WATER TEMP WATER TEMPERATURE SENDER 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

A/B A/T INDICATOR SWITCH ANTI-THEFT SYSTEM BLK WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE CLOCK/ OUTSIDE TEMP COOLING FAN ECU DOME FUSE ENGINE CONTROL MODULE (BEHIND LOWER RIGHT SIDE OF DASH) ENGINE CONTROLS SYSTEM ENGINE OIL LEVEL WARNING SWITCH (LEFT SIDE OF ENGINE) GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES TRIP SWITCH, THEFT DETERRENT INDICATOR LIGHT HOT IN START IGNITER (3.0L) (LEFT SIDE OF LEFT STRUT TOWER) J/B 1 (LEFT KICK PANEL) J/B 1 (LEFT SIDE KICK PANEL) J/B 3 (BEHIND CENTER OF DASH) J/B 3 (CENTER OF DASH) LT GRN WIRE OIL TEMP OIL LEVEL P/N PARK/ NEUTRAL POSITION SWITCH (ON TRANSMISSION) PNK/BLU WIRE R/B 2 (LEFT SIDE OF ENG COMPT) RED WIRE RED/BLK WIRE RED/WHT (OR WHT) WIRE RED/WHT WIRE RED/YEL WIRE RESET+ SET- SHORT CONNECTOR ST FUSE STARTER RELAY THEFT TRIP VIO WIRE VIO/WHT WIRE W/O TRACTION CONTROL WASHER FLUID LEVEL SWITCH (LEFT FRONT OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) TC A/C CONTROL, RADIO SWITCH LAMP A/T SHIFT LEVER ILLUMINATION LAMP BLK WIRE BLU WIRE BRN WIRE CIGARETTE LIGHTER LAMP COMBINATION METER TAIL ELECTRONIC CONTROLLED TRANSMISSION PATTERN SELECT, SEAT HEATER SWITCH FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, BEHIND BATTERY) FUSIBLE LINK GLOVE BOX LAMP) GLOVE BOX LIGHT SWITCH GRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/YEL WIRE HAZARD SWITCH LAMP HEAD OFF TAIL HOT AT ALL TIMES INTEGRATION RELAY (ON JUNCTION BLOCK 1) JUNCTION BLOCK 1 (BEHIND LEFT KICK PANEL) JUNCTION BLOCK 3 (BEHIND CENTER OF DASH) LIGHT CONTROL SWITCH (PART OF COMBINATION SWITCH) LT GRN WIRE LT GRN/RED WIRE ORG/ WIRE PANEL FUSE RADIO, PLAYER LAMP RE RL RV RED WIRE RHEOSTAT SOLID STATE TAILLIGHT RELAY TRIP SWITCH, THEFT DETERRENT WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 MHR MVR M+R +B HSRR VSRR 1 2 3 4 5 6 SWE SWRV SWB SWRH SWLH SWLV BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE DOWN DRIVER'S POWER SEAT ECU (UNDER DRIVER'S SEAT) DRIVER'S POWER SEAT ECU SHIELD DRIVING POSITION MEMORY, RETURN SWITCH (LEFT SIDE OF DASH) DSW ECUE GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES RAD 2 FUSE ECU-B FUSE HOT IN ACC OR ON JUNCTION BLOCK 1 (BEHIND LEFT KICK PANEL) LEFT DOOR OPEN DETECTION SWITCH LEFT REMOTE CONTROL MIRROR LEFT RIGHT LEFT/ RIGHT UP/ DOWN LH SELECT SWITCH RH MHL MVL M+L GND MRY NCA WIRE OPERATION SWITCH PNK WIRE RED/BLK WIRE RED/WHT WIRE REMOTE CONTROL MIRROR ECU (BEHIND LEFT CENTER OF DASH) REMOTE CONTROL MIRROR SWITCH RIGHT LEFT RIGHT REMOTE CONTROL MIRROR SET- TILT, POWER TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) UP DOWN VC HSRL VSRL SI VIO WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE

3.0L 4.0L ABS MTR RELAY ABS SOL RELAY ALT FUSE (3.0L) (4.0L) BATTERY BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE DATA LINK CONNECTOR 3 DOME FUSE ENGINE CONTROL MODULE, PARK/NEUTRAL POSITION SWITCH FOG FUSE FOGLIGHT RELAY FUSE GENERATOR HAZ-HORN FUSE HORN RELAY, HAZARD SWITCH, THEFT DETERRENT HORN IG SW FUSE IGNITION MAIN RELAY IGNITION SWITCH INJ FUSE INTEGRATION RELAY JUNCTION BLOCK 1 (BEHIND LEFT KICK PANEL) LOCK MAIN FUSE NCA WIRE OBD FUSE RADIO 1 FUSE RADIO 2 FUSE RED WIRE RELAY BLOCK 2 (ON LEFT SIDE OF ENGINE COMPT, BEHIND BATTERY) REMOTE CONTROL MIRROR ECU REMOTE CONTROL MIRROR SWITCH SEAT HTR FUSE ST FUSE STARTER STEREO POWER AMPLIFIER, RADIO, PLAYER, AUTO ANTENNA MOTOR, RELAY, D/A CONVERTER TO CIG FUSE, JUNCTION BLOCK 1 (DIAGRAM 2 OF 3) TO DAYTIME RUNNING LIGHT RELAY 2 (DIAGRAM 3 OF 3) TO DEF FUSE, RELAY BLOCK 2 (DIAGRAM 3 OF 3) TO DOOR FUSE, JUNCTION BLOCK 1 (DIGRAM 2 OF 3) TO EFI FUSE RELAY BLOCK 2 (DIAGRAM 3 OF 3) TO GAUGE FUSE, JUNCTION BLOCK 1 (DIAGRAM 2 OF 3) TO IGN FUSE, JUNCTION BLOCK 1 (DIAGRAM 2 OF 3) WHT WIRE WHT/BLU WIRE WHT/RED WIRE

BLK WIRE BLK/RED WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE CIG FUSE DOOR FUSE ECU-IG FUSE FUEL LID OPENER SOLENOID (AT RIGHT SIDE OF LUGGAGE COMPARTMENT) FUEL LID OPENER SWITCH HOT AT ALL TIMES HOT IN ACCY OR RUN J/B 1 (BEHIND LEFT KICK PANEL) J/B 3 (BEHIND CENTER OF DASH) LUGGAGE COMPARTMENT DOOR OPENER MOTOR (CENTER REAR OF TRUNK) LUGGAGE COMPARTMENT DOOR OPENER SWITCH THEFT DETERRENT, DOOR LOCK CONTROL ECU (BEHIND INSTRUMENT CLUSTER) TSW WHT/BLK WIRE WHT/RED WIRE

BLU RED/ WIRE BLU WIRE BLU/ WHT WIRE COMBINATION METER COMBINATION SWITCH GAUGE FUSE GRN WIRE GRN/RED WIRE HIGH OFF HOT IN START OR ON INT TIME JUNCTION BLOCK 1 (BEHIND LEFT KICK PANEL) JUNCTION BLOCK 1 (BEHIND LEFT KICK PANEL) WIPER FUSE JUNCTION BLOCK 3 (BEHIND CENTER OF DASH) LOW/ MIST INT OFF PNK/BLU WIRE RED WIRE RED/ BLU WIRE SOLID STATE WASHER LEVEL IND WASHER LEVEL SWITCH (AT LEFT FRONT CORNER OF ENGINE COMPT) WASHER MOTOR (AT LEFT FRONT CORNER OF ENG COMPT) WASHER SWITCH WHT WIRE WHT/BLK WIRE WHT/RED WIRE WIPER MOTOR (LEFT SIDE OF FIRE- WALL) WIPER SWITCH YEL WIRE