Lexus IS I (1999-2005) driver side j/b (behind lower left end of dash) Wiring diagrams

1 2 7 5 4 6 PRG RDA LGCY RCTY LSR DCTY 13 19 5 12 11 1 7 9 14 8 BDSU 3 4 1 IG BACKDOOR OPENER SWITCH (WAGON) BK (AT RIGHT FRONT FLOOR PANEL) BL (AT LEFT REAR QUARTERPANEL) BK (AT RIGHT FRONT FLOOR PANEL) BLK WIRE BLK/RED WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BN (AT RIGHT UPPER SIDE OF BACK PANEL) BODY ECU (BEHIND LOWER LEFT END OF DASH, INTEGRAL WITH DRIVER SIDE J/B) BRN WIRE BSUB DOME FUSE DOOR FUSE DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) EB (AT CENTER LEFT SIDE OF INTAKE MANIFOLD) ECU-IG FUSE GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START ID (AT LEFT SIDE OF FIREWALL) IGNITION KEY CYLINDER LIGHT IH (AT RIGHT SIDE OF FIREWALL) J/C 15 (BEHIND LEFT FENDERWELL) J/C 16 (ABOVE RIGHT REAR FENDER- WELL) J/C 16 (ABOVE RIGHT REAR FENDERWELL) J/C 5 (ABOVE DRIVER SIDE J/B) J/C 7 (BEHIND UPPER RIGHT SIDE OF DASH) LEFT FRONT DOOR COURTESY LIGHT LEFT FRONT DOOR COURTESY SWITCH LEFT REAR DOOR LOCK DETECTION SWITCH LT GRN WIRE LT GRN/BLK WIRE MPX-B FUSE ORG/ WIRE PASSENGER SIDE J/B (BEHIND LOWER RIGHT END OF DASH) PCLP DCLP PML PMUL LSWP PCTY RADIO 2 FUSE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT DOOR LOCK CONTROL SWITCH RIGHT FRONT DOOR COURTESY LIGHT RIGHT FRONT DOOR COURTESY SWITCH RIGHT FRONT DOOR LOCK DETECTION SWITCH RIGHT REAR DOOR LOCK DETECTION SWITCH SEDAN SIL CG SG SRS-B FUSE 7.5 WAGON WHT WIRE WHT/BLK WIRE YEL WIRE YEL/RED WIRE

BJ (AT LEFT FRONT FLOOR PANEL) BLK WIRE DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) EC+ EC- ECU-IG FUSE GRN WIRE GRN/RED WIRE HOT IN ON OR START INNER MIRROR LEFT REMOTE CONTROL MIRROR RED WIRE RIGHT REMOTE CONTROL MIRROR WHT WIRE WHT/RED WIRE WIRE TO FCC HOLDER

+B HI DRL 1 2 3 4 5 6 7 8 9 10 IG BLK WIRE BLK/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER DAYTIME RUNNING LIGHT RESISTOR (ON RIGHT SIDE OF ENGINE COMPT, ON STRUT TOWER) DIMMER RELAY DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) DRL 1 FUSE DRL 2 FUSE EC (AT LEFT FENDER APRON) ECU-IG FUSE ENGINE ROOM 1 R/B (ON RIGHT REAR OF ENGINE COMPARTMENT) ENGINE ROOM 2 R/B (ON RIGHT REAR OF ENGINE COMPARTMENT) ENGINE ROOM 3 R/B (ON LEFT SIDE OF ENGINE COMPARTMENT) FR FOG FUSE FR FOG RELAY FUSE H-LP L LWR FUSE H-LP R LWR FUSE H-LP R UPR FUSE H-LP L UPR FUSE HEAD LP RELAY HI BEAM INDICATOR HOT AT ALL TIMES HOT IN ON OR START DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) IH (AT RIGHT SIDE OF FIREWALL) IND PKB CHG- JUNCTION CONNECTOR 6 (BEHIND LEFT SIDE OF DASH, FORWARD OF INSTRUMENT CLUSTER) JUNCTION CONNECTOR 7 (BEHIND UPPER RIGHT SIDE OF DASH) LEFT FRONT FOG LIGHT LEFT HEADLIGHT CONTROL ECU (BEHIND LEFT HEADLIGHT ASSEMBLY) LEFT HIGH BEAM HEADLIGHT MAIN DAYTIME RUNNING LIGHT RELAY (BEHIND LEFT END OF DASH) MAIN FUSE PARKING BRAKE SWITCH (AT BASE OF PARKING LEVER) PASSENGER SIDE J/B (BEHIND LOWER RIGHT END OF DASH) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT FOG LIGHT RIGHT HEADLIGHT CONTROL ECU (BEHIND RIGHT HEADLIGHT ASSEMBLY) RIGHT HIGH BEAM HEADLIGHT WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE

1 12 HEAD 2 3 1 SHB SHG SHFL ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER HEADLIGHT BEAM LEVEL CONTROL WARNING LIGHT COMBINATION SWITCH DIMMER SWITCH DIODE (FOG LIGHT) DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) ECU-IG FUSE ENGINE ROOM 1 R/B (ON RIGHT REAR OF ENGINE COMPT) GAUGE FUSE GRN/BLK WIRE GRN/ORG WIRE GRN/WHT WIRE HEAD LP RELAY HEADLIGHT BEAM LEVEL CONTROL ECU (BEHIND LEFT END OF DASH) HOT AT ALL TIMES HOT IN ON OR START IH (AT RIGHT SIDE OF FIREWALL) JUNCTION CONNECTOR 5 (BEHIND LEFT END OF DASH, ABOVE DRIVER SIDE J/B) JUNCTION CONNECTOR 7 (BEHIND UPPER RIGHT SIDE OF DASH) LEFT FRONT HEIGHT CONTROL SENSOR (ON LEFT FRONT OF ENGINE COMPT) LEFT HEADLIGHT BEAM LEVEL CONTROL ACTUATOR (BEHIND LEFT HEADLIGHT) LIGHT CONTROL SWITCH MAIN FUSE PASSENGER SIDE J/B (BEHIND LOWER RIGHT END OF DASH) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT HEADLIGHT BEAM LEVEL CONTROL ACTUATOR (BEHIND RIGHT HEADLIGHT) SGF SGR LHE RHT LHT RH+ LH+ SHFL WNG SHRL SHB SHG TAIL HEAD AUTO OFF THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE

13 14 FE FR 3 1 PKB MPX- 8 18 +B GND A/C CONTROL ASSEMBLY A/T ABS IND. ANTI-LOCK BRAKES SYSTEM ANTI-THEFT SYSTEM HEADLIGHTS SYSTEM BEAM IND BEAM LEVEL IND BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BODY ECU BRAKE FLUID LEVEL WARNING SWITCH (ON BRAKE FLUID RESERVOIR) BRAKE IND BRL PKB VSCW BRN WIRE BRN/WHT WIRE BUZZER CHARGE IND COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE IND DOOR IND DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) DRIVER SIDE SIDE J/B (BEHIND LOWER LEFT END OF DASH) ECT PWR IND ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPT, IN PROTECTIVE CASE) ENGINE CONTROLS SYSTEM ENGINE CONTROLS, NAVIGATION SYSTEM ENGINE OIL LEVEL SENSOR (ON LOWER LEFT FRONT OF ENGINE) ENGINE OIL PRESSURE SWITCH (ON LEFT FRONT OF ENGINE) FUEL FUEL IND FUEL SENDER (SUB) (UNDER RIGHT SIDE OF VEHICLE, FORWARD OF RIGHT FENDERWELL) FUEL SENDER (UNDER LEFT SIDE OF VEHICLE, FORWARD OF LEFT FENDERWELL) GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START HOT W/ TAIL RELAY ENERGIZED ID (AT LEFT SIDE OF FIREWALL) IE (AT LEFT FRONT FLOOR PANEL CENTER) IG+ SI SE 3 2 IH (AT RIGHT SIDE OF FIREWALL) ILLUMINATION JUNCTION CONNECTOR 10 (BEHIND UPPER RIGHT SIDE OF DASH) JUNCTION CONNECTOR 5 (ABOVE DRIVER SIDE J/B) JUNCTION CONNECTOR 6 (FORWARD OF INSTRUMENT CLUSTER) JUNCTION CONNECTOR 7 (BEHIND UPPER RIGHT SIDE OF DASH) LBL LCD SPEEDOMETER LT GRN WIRE LT GRN/BLK WIRE M/T MALFUNCTION INDICATOR LAMP MOL MOMENTARY FUEL CONSUMPTION MOPS MPX MPX-B FUSE OIL LEVEL IND OIL PRESSURE IND ORG/ WIRE OUT SIDE TEMP GAUGE PANEL FUSE 7.5 PARKING BRAKE SWITCH (AT BASE OF PARKING BRAKE LEVER) PASSENGER SIDE J/B (BEHIND LOWER RIGHT END OF DASH) PASSENGER SIDE J/B (BEHIND LOWER RIGHT END OF DASH) SRS-B FUSE RADIO 2 FUSE REAR LIGHTS IND RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE SEAT BELT IND SECURITY IND SKID CONTROL ECU SLIP IND SNOW IND SRS IND TACHOMETER TRAC OFF IND TURN LH IND TURN RH IND VEHICLE SPEED SENSOR (COMBINATION METER) (ON LEFT REAR OF TRANSMISSION) VIO/GRN WIRE VOLT VSC IND WATER TEMP 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

2 1 (A/T) (M/T) 6 3 (M/T) (A/T) A/C CONTROL ASSEMBLY ASHTRAY ILLUMI- NATION BLK WIRE BRN WIRE CIGARETTE LIGHTER ILLUMI- NATION COMBINATION METER ILLUMINATION (COMBINATION METER) DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) ELECTRONIC CONTROLLED TRANSMISSION PATTERN SELECT SWITCH (A/T) GLOVE BOX LIGHT GRN WIRE HEAD- LIGHT CLEANER SWITCH HOT AT ALL TIMES IH (AT RIGHT SIDE OF FIREWALL) J/C 5 (ABOVE DRIVER SIDE J/B) J/C 7 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 8 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 9 (BEHIND UPPER RIGHT SIDE OF DASH) LIGHT CONTROL SWITCH COMBINATION SWITCH MULTI-DISPLAY OFF HEAD PANEL FUSE PASSENGER SIDE J/B (BEHIND LOWER RIGHT END OF DASH) RADIO, PLAYER REAR FOG LIGHT SWITCH RED WIRE REMOTE CONTROLLER (NAVIGATION) RHEOSTAT SEAT HEATER SWITCH (DRIVER) SEAT HEATER SWITCH (FRONT PASSENGER) TAIL TAIL RELAY THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) TAIL TRACTION "OFF" SWITCH (A/T) TRACTION "OFF" SWITCH, SNOW SWITCH (M/T) TRANSMISSION CONTROL SWITCH (A/T SHIFT POSITION ILLUMINATION) (A/T) WHT WIRE WHT/GRN WIRE

+B AUI- AUO- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 AUI+ AUO+ 1 2 3 4 5 6 7 8 9 10 VR 2 1 (A/T) (M/T) 2 5 3 1 4 6 ILL ILL 3 2 (A/T) (M/T) 8 1 FL- FL+ A/T A/T M/T BK (AT RIGHT FRONT FLOOR PANEL) BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CLUTCH COMBINATION METER CTX+ VG CTX- CTX- CTX+ NAVI-MUTE DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) DRIVER SIDE J/B GAUGE FUSE (BEHIND LOWER LEFT END OF DASH) ECU-IG FUSE GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT IN HOT IN ACC OR ON HOT IN ON OR START IE (AT LEFT FRONT FLOOR PANEL CENTER) IF (AT RIGHT FRONT PANEL CENTER) IG SPD GTX+ J/C 1, 2 (ON LEFT SIDE OF ENGINE COMPT, NEAR ENGINE CONTROL MODULE) J/C 16 (ABOVE RIGHT REAR FENDERWALL) J/C 19 J/C 6 (BEHIND LEFT SIDE OF DASH, FORWARD OF INSTRUMENT CLUSTER) J/C 7 (BEHIND UPPER RIGHT SIDE OF DASH) LEFT FRONT DOOR SPEAKER LEFT TWEETER M/T M/T A/T MULTI-DISPLAY NAVI NAVIGATION ECU NCA WIRE ORG/ WIRE PARKING BRAKE SWITCH (AT BASE OF PARKING BRAKE LEVER) PASSENGER SIDE J/B (BEHIND LOWER RIGHT END OF DASH) PNK WIRE RADIO 2 FUSE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE REMOTE CONTROLLER REV MUTE SE SI IG+ SEDAN SKID CONTROL ECU STARTER FUSE STEREO COMPONENT AMPLIFIER (BEHIND RIGHT END OF DASH) SWITCH SYNC TC PKB GTX- THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) TV FUSE VEHICLE SPEED SENSOR (COMBINATION METER) (M/T) VIO WIRE WAGON WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

1 2 4 5 6 7 8 PRG RDA LSR RCTY DCTY LGCY TR+ 2 6 12 BECU ABOVE DRIVER SIDE J/B) ID (AT LEFT SIDE BACK DOOR OPENER SWITCH (WAGON) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (BEHIND LOWER LEFT END OF DASH, INTEGRAL WITH DRIVER SIDE J/B) BSUB BZR DOOR FUSE DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) ECU-IG FUSE FENDERWELL) FLASHER RELAY FORWARD OF INSTRUMENT CLUSTER) GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GRY/BLU WIRE HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START JUNCTION CONNECTOR 16 (ABOVE RIGHT REAR JUNCTION CONNECTOR 5 (BEHIND LEFT END OF DASH, JUNCTION CONNECTOR 6 (BEHIND LEFT SIDE OF DASH, KEYLESS BUZZER (NEAR TOP OF LEFT FRONT WHEELWELL, INSIDE FENDER) KSW PML PCTY PMUL HAZ BDSU LSWP LEFT FRONT DOOR COURTESY SWITCH LEFT REAR DOOR COURTESY SWITCH LEFT REAR DOOR LOCK MOTOR, DOOR LOCK DETECTION SWITCH LOCK DETECTION OF FIREWALL) ORG/ WIRE RADIO 2 FUSE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR COURTESY SWITCH RIGHT REAR DOOR COURTESY SWITCH UNLOCK WARNING SWITCH WAGON SEDAN WHT WIRE WHT/BLK WIRE YEL/RED WIRE

5 18 9 6 15 10 BDM TX BACK DOOR OPENER RELAY (WAGON) (ABOVE LEFT REAR FENDERWELL) BK (AT RIGHT FRONT FLOOR PANEL) BLK/ WHT WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE DETECTION LOCK DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/YEL WIRE JUNCTION CONNECTOR 16 (ABOVE RIGHT REAR FENDERWELL) KL KUL LSWD LOCK LOCK DETECTION ORG/ WIRE PASSENGER SIDE J/B (BEHIND LOWER RIGHT END OF DASH) POWER WINDOW MASTER SWITCH RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR LOCK MOTOR, DOOR LOCK DETECTION SWITCH RIGHT REAR DOOR LOCK MOTOR, DOOR LOCK DETECTION SWITCH SEDAN UNLK UNLK RIGHT DOOR LOCK CONTROL SWITCH WAGON WAGON SEDAN WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL BLU/ WIRE YEL/RED WIRE

BLK WIRE BLU WIRE DEFOGGER SYSTEM DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) EC+ ELECTROCHROMIC MIRROR CIRCUIT GRN WIRE GRY WIRE HL VL M+ HOT IN ACC OR ON HR- VR- J/C 11 (IN LEFT FRONT DOOR) J/C 5 (BEHIND LEFT END OF DASH, ABOVE DRIVER SIDE J/B) ID LEFT REMOTE CONTROL MIRROR M+ MHR MVR MHL MVL M+ OPERATION SWITCHES PNK PNK PNK WIRE PNK WIRE RADIO 2 FUSE RED WIRE REMOTE CONTROL MIRROR SWITCH RIGHT LEFT RIGHT REMOTE CONTROL MIRROR SELECT SWITCHES UP DOWN WHT WIRE YEL WIRE