Lexus SC I (1991-2001) integration relay Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 GRD 1 2 3 4 5 6 7 8 9 10 TO ACT- ACT+ ACTD PRLY IG BLK WIRE BLK/ WHT WIRE BLK/RED WIRE BLK/WHT (OR RED/BLK) WIRE BLK/WHT WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN (OR GRN/WHT) WIRE BRN/WHT WIRE BZR CIG FUSE DIODE DOME FUSE DOOR FUSE DSWD DSWL DSWP KSW LSWP ECU-IG FUSE ENGINE HOOD COURTESY SWITCH (CENTER FRONT OF ENGINE COMPARTMENT) GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HEADLIGHTS SYSTEM HORN RELAY HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR ACCY HOT IN RUN OR START INTEGRATION RELAY JUNCTION BLOCK 1 (BEHIND LEFT KICK PANEL) JUNCTION BLOCK 3 (BEHIND CENTER OF DASH) KSW LSWD LSWP IG CTY LEFT FRONT DOOR KEY LOCK/UNLOCK SWITCH LOCK LUG HEAD SH IND TSW DSWH LSWD LUGGAGE COMPARTMENT LIGHT SWITCH (CENTER REAR OF TRUNK) MASTER POWER WINDOW/DOOR LOCK CONTROL SWITCH PNK WIRE POWER MAIN RELAY POWER CIRCUIT BREAKER RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RELAY BLOCK 2 (ON LEFT SIDE OF ENGINE COMPT, BEHIND BATTERY) RIGHT FRONT DOOR KEY LOCK/UNLOCK SWITCH RIGHT FRONT DOOR LOCK CONTROL SWITCH STARTER RELAY TAIL HORN SRLY TAILLIGHT RELAY THEFT DETERRENT, DOOR LOCK ECU (BEHIND INSTRUMENT CLUSTER) UL +B UNLOCK VIO WIRE WHT (OR GRN) WIRE WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER (AT LEFT SIDE OF ENGINE COMPARTMENT, NEAR STRUT TOWER) YEL GRN/ WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE

BLU/WHT WIRE BRN/WHT WIRE COMBINATION METER DOME FUSE DOOR DOOR OPEN WARNING LIGHT GAUGE FUSE GRN/BLU WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IGNITION KEY CYLINDER LIGHT INTEGRATION RELAY INTERIOR JUNCTION BLOCK 1 (BEHIND LEFT KICK PANEL) JUNCTION BLOCK 3 (BEHIND CENTER OF DASH) LEFT DOOR COURTESY LAMP LEFT DOOR UNLOCK, DOOR OPEN DETECTION SWITCH LEFT VANITY LIGHT LUGGAGE COMPARTMENT LAMP LUGGAGE COMPARTMENT LIGHT SWITCH MAP OFF PERSONAL LIGHT PNK WIRE RADIO 2 FUSE RED WIRE RED/BLK WIRE RED/WHT WIRE RELAY BLOCK 2 (ON LEFT SIDE OF ENGINE COMPARTMENT BEHIND BATTERY) RELAY BLOCK 4 (BEHIND LEFT KICK PANEL, ON FRONT SIDE OF JUNCTION BLOCK 1) RIGHT DOOR COURTESY LAMP RIGHT DOOR UNLOCK, DOOR OPEN DETECTION SWITCH RIGHT VANITY LIGHT STEP LIGHT WHT/BLK WIRE

A/C CONTROL ASSEMBLY AIR BAG SENSOR ASSEMBLY BLK WIRE BLK/YEL WIRE COMBINATION METER (4.0L) COOLING FAN ECU (4.0L) DIMMER SWITCH (COMBINATION SWITCH) INNER MIRROR INTEGRATION RELAY JUNCTION BLOCK 1 (BEHIND LEFT KICK PANEL) LEFT DOOR KEY LOCK/ UNLOCK SWITCH LEFT DOOR LOCK/ UNLOCK MOTOR, DOOR DETECTION POSITION SWITCH LEFT POWER WINDOW MASTER SWITCH, DOOR LOCK CONTROL SWITCH LEFT REMOTE CONTROL MIRROR LEFT VANITY LIGHT LIGHT CONTROL SWITCH COMBINATION SWITCH MOON ROOF CONTROL RELAY MOON ROOF CONTROL SWITCH MOON ROOF LIMIT SWITCH MOON- ROOF MOTOR PERSONAL LIGHT POWER MAIN RELAY PPS ECU RED WIRE REMOTE CONTROL MIRROR ECU REMOTE CONTROL MIRROR SWITCH RIGHT VANITY LIGHT RIGHT VANITY LIGHT INNER MIRROR THEFT DETERRENT, DOOR LOCK ECU TILT, POWER TELESCOPIC ECU TO JUNCTION TRANSPONDER KEY AMPLIFIER TURN SIGNAL FLASHER W/ MEMORY W/O MEMORY W/O MOON W/ MOON ROOF ROOF WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE WIPER MOTOR IGNITION MAIN RELAY WIPER WASHER SWITCH (COMBINATION SWITCH)

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

A/C CONTROL ASSEMBLY, SHIFT LOCK ECU AIR BAG SENSOR ASSEMBLY BLK/WHT WIRE BLK/YEL WIRE BLU/RED WIRE BLU/WHT WIRE CIG FUSE CIGARETTE LIGHTER DIODE DOOR FUSE ECU-B FUSE ECU-IG FUSE ENGINE CONTROL MODULE, LICENSE PLATE LIGHTS, LIGHT FAILURE SENSOR ENGINE CONTROLS SYSTEM ENGINE FUSE FROM IGNITION SWITCH (DIAGRAM 1 OF 3) FROM RAD 2 FUSE, JUNCTION BLOCK 1 (DIAGRAM 1 OF 3) GAUGE FUSE GENERATOR HAZARD SWITCH HTR FUSE HTR RELAY, MG CLT RELAY DEF RELAY, A/C CONTROL ASSEMBLY, WATER VALVE VSV IGN FUSE INTEGRATION RELAY JUNCTION BLOCK 1 (BEHIND LEFT KICK PANEL) JUNCTION BLOCK 3 (BEHIND CENTER OF DASH) PANEL FUSE PARKING LIGHTS, FRONT SIDE MARKER LIGHTS POWER MAIN RELAY PWR FUSE STOP FUSE TAIL FUSE TAILLIGHT RELAY THEFT DETERRENT, DOOR LOCK CONTROL ECU, AIR BAG SENSOR ASSEMBLY TILT, POWER TELESCOPIC ECU, MOON ROOF CONTROL RELAY TURN FUSE WASHER MOTOR, WIPER/WASHER SWITCH, WIPER MOTOR WHT/BLK WIRE WHT/BLU WIRE WIPER FUSE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 GRD 1 2 3 4 5 6 7 8 9 10 TO ACT- ACT+ ACTD PRLY IG BLK WIRE BLK/ WHT WIRE BLK/RED WIRE BLK/WHT (OR RED/BLK) WIRE BLK/WHT WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN (OR GRN/WHT) WIRE BRN/WHT WIRE BZR CIG FUSE DIODE DOME FUSE DOOR FUSE DSWD DSWL DSWP KSW LSWP ECU-IG FUSE ENGINE HOOD COURTESY SWITCH (CENTER FRONT OF ENGINE COMPARTMENT) GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HEADLIGHTS SYSTEM HORN RELAY HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR ACCY HOT IN RUN OR START INTEGRATION RELAY JUNCTION BLOCK 1 (BEHIND LEFT KICK PANEL) JUNCTION BLOCK 3 (BEHIND CENTER OF DASH) KSW LSWD LSWP IG CTY LEFT FRONT DOOR KEY LOCK/UNLOCK SWITCH LOCK LUG HEAD SH IND TSW DSWH LSWD LUGGAGE COMPARTMENT LIGHT SWITCH (CENTER REAR OF TRUNK) MASTER POWER WINDOW/DOOR LOCK CONTROL SWITCH PNK WIRE POWER MAIN RELAY POWER CIRCUIT BREAKER RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RELAY BLOCK 2 (ON LEFT SIDE OF ENGINE COMPT, BEHIND BATTERY) RIGHT FRONT DOOR KEY LOCK/UNLOCK SWITCH RIGHT FRONT DOOR LOCK CONTROL SWITCH STARTER RELAY TAIL HORN SRLY TAILLIGHT RELAY THEFT DETERRENT, DOOR LOCK ECU (BEHIND INSTRUMENT CLUSTER) UL +B UNLOCK VIO WIRE WHT (OR GRN) WIRE WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER (AT LEFT SIDE OF ENGINE COMPARTMENT, NEAR STRUT TOWER) YEL GRN/ WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE

BLK/YEL WIRE COMBINATION METER GAUGE FUSE HOT AT ALL TIMES R/B 2 (LEFT SIDE OF ENG COMPT) DOME FUSE HOT IN START OR ON INTEGRATION RELAY J/B 1 (LEFT KICK PANEL) J/B 3 (BEHIND CENTER OF DASH) LEFT BUCKLE SWITCH (INSIDE DRIVER'S SEAT BELT BUCKLE) LEFT DOOR LOCK/ UNLOCK MOTOR, DOOR DETECTION POSITION SWITCH RED WIRE RED/WHT WIRE SEAT BELT WARNING LIGHT TIMER/BUZZER UNLOCK WARNING SWITCH (IN IGNITION SWITCH) VIO WIRE WHT/BLK WIRE YEL WIRE