Lexus IS I (1999-2005) bk (at right front floor panel) Wiring diagrams

5 18 9 6 15 10 BDM TX ALT FUSE BK (AT RIGHT FRONT FLOOR PANEL) BLK WIRE BLK/ WHT WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/RED WIRE BLU/YEL WIRE DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) EFI FUSE EFI RELAY ENGINE ROOM 1 R/B (ON RIGHT REAR OF ENGINE COMPT) ENGINE ROOM 2 R/B (ON RIGHT REAR OF ENGINE COMPT) GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE HEAD LP RELAY HEADLIGHTS SYSTEM HORN FUSE HORN RELAY HORN SYSTEM HOT AT ALL TIMES IH (AT RIGHT SIDE OF FIREWALL) J/C 12 (ABOVE LEFT REAR FENDERWELL) J/C 17 (ABOVE LEFT REAR FENDERWELL) (SEDAN) JUNCTION CONNECTOR 15 (ON LEFT SIDE OF LUGGAGE COMPT, BEHIND LEFT FENDERWELL) JUNCTION CONNECTOR 16 (ABOVE RIGHT REAR FENDERWELL) KL KUL LSWD LEFT FRONT DOOR KEY LOCK, UNLOCK SWITCH, DOOR LOCK DETECTION SWITCH LOCK DETECT LUGGAGE COMPARTMENT DOOR KEY UNLOCK SWITCH MAIN FUSE ORG/ WIRE POWER WINDOW MASTER SWITCH RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR LOCK DETECTION SWITCH RIGHT REAR DOOR LOCK DETECTION SWITCH SEDAN UNLK LOCK WAGON WHT WIRE WHT/BLK WIRE YEL/RED WIRE

16 20 22 3 TACH 19 3 12 TC LA SIL A/C CONTROL ASSEMBLY BK (AT RIGHT FRONT FLOOR PANEL) BLK WIRE BLK/YEL WIRE BLU WIRE BODY ECU (BEHIND LOWER LEFT END OF DASH, INTEGRAL WITH DRIVER SIDE J/B) BRN WIRE CENTER AIR BAG SENSOR ASSEMBLY (BELOW CENTER OF DASH, ON TRANSMISSION TUNNEL) CG SG A/B SIL COMBINATION METER D/G DATA LINK CONNECTOR 3 (BEHIND LOWER LEFT SIDE OF DASH) DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) EB (AT CENTER LEFT SIDE OF INTAKE MANIFOLD) ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPT, IN PROTECTIVE CASE) HOT AT ALL TIMES OBD FUSE IH (AT RIGHT SIDE OF FIREWALL) J/C 16 (SEDAN) (ABOVE RIGHT REAR FENDERWELL) LT GRN WIRE MPX MPX+ MPX- MULTI-DISPLAY ORG/ WIRE PASSENGER SIDE J/B (BEHIND LOWER RIGHT END OF DASH) POWER WINDOW MASTER SWITCH RED/WHT WIRE SIL SKID CONTROL ECU TAC TC TS WFSE BAT THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) VIO WIRE WAGON WFSE TC WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL/RED WIRE

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

3 2 5 1 PRG RDA +B 5 18 BDM TX A/C CONTROL ASSEMBLY BACK DOOR COURTESY SWITCH BJ (AT LEFT FRONT FLOOR PANEL) BK (AT RIGHT FRONT FLOOR PANEL) BL SEDAN BLK WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BRN/WHT WIRE COMBINATION METER DOOR IND 17 15 19 DOOR ON OFF ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPARTMENT, IN PROTECTIVE CASE) GRN/BLK WIRE GRN/RED WIRE GRY/BLU WIRE IE (AT LEFT FRONT FLOOR PANEL CENTER) INTERIOR LIGHT) J/C 11 (IN LEFT FRONT DOOR) J/C 15 (BEHIND LEFT FENDERWALL) J/C 15 (BEHIND LEFT FENDERWELL) LEFT FRONT DOOR KEY LOCK, UNLOCK SWITCH, DOOR LOCK DETECTION SWITCH LEFT REAR DOOR COURTESY SWITCH RIGHT REAR DOOR COURTESY SWITCH LEFT VANITY LIGHT LOCK LOCK DECECT LSWD KUL KL LT GRN/BLK WIRE LUGGAGE COMPARTMENT DOOR COURTESY SWITCH LUGGAGE COMPARTMENT LIGHT MPX ORG/ WIRE PERSONAL LIGHT (MOON ROOF CONTROL SWITCH) (W/ MOON ROOF) PERSONAL LIGHT (W/O MOON ROOF) POWER WINDOW MASTER SWITCH RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT VANITY LIGHT SEDAN WAGON THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) UNLK WAGON WAGON SEDAN WHT WIRE WHT/BLK WIRE WIRE TO FFC HOLDER WIRELESS DOOR LOCK CONTROL RECEIVER YEL WIRE YEL/RED WIRE

BJ (AT LEFT FRONT FLOOR PANEL) BK (AT RIGHT FRONT FLOOR PANEL) BLK WIRE BLU WIRE BRN WIRE DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) DRIVER'S SEAT HEATER SWITCH FRONT PASSENGER'S SEAT HEATER SWITCH GRN WIRE HOT IN ON OR START IH (AT RIGHT SIDE OF FIREWALL) INTERIOR LIGHTS SYSYTEM J/C 7 (BEHIND UPPER RIGHT SIDE OF DASH) PASSENGER SIDE J/B (BEHIND LOWER RIGHT END OF DASH) RED WIRE SEAT HEATER (DRIVER'S SEAT) SEAT HEATER (FRONT PASSENGER'S SEAT) SEAT HTR FUSE W/ POWER SEAT WHT 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

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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 TX+ CTX+ 1 2 3 4 5 6 7 8 WF+ WF+ AMP+ WF- WF- MTR +B 18 5 GTX- GTX+ ACC+B AMP ANT ANTENNA AMPLIFIER (BEHIND CENTER OF DASH) AUI- AUO- BK (AT RIGHT FRONT FLOOR PANEL) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BU+B DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) ENGINE ENGINE ROOM R/B 1 ROOM R/B 1 (ON RIGHT REAR (ON RIGHT OF ENGINE COMPT) GND(E) GND(S) GRN WIRE GRN/BLK WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACC OR ON IF (AT RIGHT FRONT PANEL CENTER) JUNCTION CONNECTOR 10 (BEHIND UPPER RIGHT SIDE OF DASH) JUNCTION CONNECTOR 13 (ABOVE LEFT REAR FENDERWELL) JUNCTION CONNECTOR 16 (ABOVE RIGHT REAR FENDERWELL) L-R LEFT FRONT DOOR SPEAKER LEFT REAR SPEAKER LEFT SQUAWKER LEFT TWEETER LT GRN WIRE MULTI-DISPLAY (W/ NAVIGATION) MUTE MUTE L+ R+ TX- CTX- MUTE R+ L+ NAVI-MUTE NAVIGATION ECU NCA WIRE PASSENGER SIDE J/B (BEHIND LOWER RIGHT END OF DASH) PNK AUO+ WIRE PNK PNK WIRE PNK WIRE R- L- GND RADIO 1 FUSE RADIO 2 FUSE RADIO, PLAYER RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT FRONT DOOR SPEAKER RIGHT REAR SPEAKER RIGHT SQUAWKER RIGHT TWEETER RR- WR- ACC+ STEREO COMPONENT AMPLIFIER (BEHIND RIGHT END OF DASH) TX- S-GND VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WOOFER YEL WIRE YEL/BLK WIRE YEL/RED WIRE

3 6 DBKL DCTY A/C CONTROL ASSEMBLY BJ (AT LEFT FRONT FLOOR PANEL) BJ (AT LEFT FRONT FLOOR PANEL) BEHIND LEFT FENDERWELL) BL BK (AT RIGHT FRONT FLOOR PANEL) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BODY ECU (BEHIND LOWER LEFT END OF DASH, INTEGRAL WITH DRIVER SIDE J/B) BRN/WHT WIRE BSUB BUZZER CENTER) IE COMBINATION METER COMPUTER DATA LINES SYSTEM DOOR FUSE DOOR IND DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) ECU-IG FUSE ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPT) GAUGE FUSE HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START J/C 13 (ABOVE LEFT REAR FENDERWELL) J/C 15 (ON LEFT SIDE OF LUGGAGE COMPT) J/C 5 (BEHIND LEFT SIDE OF DASH, ABOVE DRIVER SIDE J/B) J/C 6 (BEHIND LEFT SIDE OF DASH) LEFT BUCKLE SWITCH LEFT FRONT DOOR COURTESY SWITCH LT GRN WIRE LT GRN/BLK WIRE MPX MPX-B FUSE SRS-B FUSE ORG/ WIRE P-S/B PASSENGER SIDE J/B (BEHIND LOWER RIGHT END OF DASH) PNK WIRE PNK/BLK WIRE PNK/GRN WIRE RADIO 2 FUSE RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT BUCKLE SWITCH, SEAT BELT WARNING OCCUPANT DETECTION SENSOR SEAT BELT IND THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) UNLOCK WARNING SWITCH W/ POWER SEAT W/ POWER SEATS W/O POWER SEATS WAGON SEDAN WHT WIRE WHT/BLK WIRE YEL WIRE