Lexus IS I (1999-2005) junction connector 10 (behind upper right side of dash) Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 HAZD AIF AOD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 MPX- 1 2 M+ M- 16 25 18 ACMG PRE TAM 3 2 1 +B SI GND A/C AMBIENT TEMPERATURE SENSOR (BEHIND LEFT A/C COMP RELAY A/C CONDENSER FAN MOTOR A/C CONTROL ASSEMBLY A/C DIODE (BEHIND RIGHT END OF DASH) A/C FUSE A/C MAGNETIC CLUTCH, LOCK SENSOR (ON LEFT FRONT OF ENGINE, ON A/C COMPRESSOR) A/C THERMISTOR A/C TRIPLE PRESSURE AIR INLET CONTROL SERVO MOTOR (BEHIND UPPER RIGHT SIDE OF DASH) AIR MIX CONTROL SERVO MOTOR (BEHIND UPPER RIGHT CENTER OF DASH) AIR VENT MODE CONTROL SERVO MOTOR (BEHIND UPPER RIGHT CENTER OF DASH) AT RIGHT SIDE OF FIREWALL) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLOWER MOTOR (BEHIND LOWER RIGHT END OF DASH) BLOWER MOTOR CONTROLLER (BEHIND UPPER RIGHT CENTER OF DASH) BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE CENTER OF FRONT BUMPER FASCIA) CONNECTOR 3 DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) DUAL ECU-IG FUSE ENGINE COMPT, NEAR ENGINE CONTROL MODULE) ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE ROOM 1 R/B (ON RIGHT REAR OF ENGINE COMPT) ENGINE ROOM 3 R/B (ON LEFT SIDE OF ENGINE COMPT) FAN FAN 1 RELAY FAN 2 RELAY FAN 3 RELAY FRONT WIPER MOTOR (IN ENGINE COMPT, BELOW LOWER +2 LEFT SIDE OF WINDSHIELD) GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START HR WIP BLW SNOW ILL- ILL+ IG HTR RELAY IG (AT RIGHT DASH REINFOR- CEMENT) IH (AT RIGHT SIDE OF FIREWALL) INSTRUMENT CLUSTER SYSTEM JUNCTION CONNECTOR JUNCTION CONNECTOR 10 (BEHIND UPPER RIGHT SIDE OF DASH) JUNCTION CONNECTOR 19 JUNCTION CONNECTOR 2 (ON LEFT SIDE OF JUNCTION CONNECTOR 8 (BEHIND UPPER RIGHT SIDE OF DASH) LT GRN/RED WIRE MPX+ AIR AOF AMC AMH TP TPI TR MPX-B FUSE ORG/ WIRE PASSENGER SIDE J/B (BEHIND LOWER RIGHT END OF DASH) PKB PWR P-S/B PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE RADIATOR FAN MOTOR RADIO 2 FUSE RDI FAN FUSE CDS FAN FUSE RED WIRE RED/WHT WIRE RED/YEL WIRE SINGLE SWITCH (ON LEFT FRONT OF ENGINE COMPT, BEHIND BUMPER FASCIA) TRANSMISSIONS SYSTEM TRANSMISSIONS SYSTEM INTERIOR LIGHTS SYSTEM TS TPM TE VIO WIRE VIO/WHT WIRE WARNING SYSTEM WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL/GRN WIRE YEL/RED WIRE

18 8 16 7 1 GND +B IG A/C CONDENSER FAN MOTOR A/C CONTROL ASSEMBLY A/C DIODE (BEHIND RIGHT END OF DASH) A/C SINGLE PRESSURE SWITCH ACMG BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CDS FAN FUSE DRIVER SIDE J/B (BEHIND LOWER LEFT END OF DASH) EC (AT LEFT FENDER APRON) ECU-IG FUSE ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPT, IN PROTECTIVE CASE) ENGINE ROOM 1 R/B (ON RIGHT REAR OF ENGINE COMPT) ENGINE ROOM R/B 3 (ON LEFT SIDE OF ENGINE COMPT) FAN FAN 1 RELAY FAN 2 RELAY FAN 3 RELAY GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IH (AT RIGHT SIDE OF FIREWALL) INSTRUMENT CLUSTER SYSTEM JUNCTION CONNECTOR 10 (BEHIND UPPER RIGHT SIDE OF DASH) JUNCTION CONNECTOR 19 JUNCTION CONNECTOR 3 (ON LEFT SIDE OF ENGINE COMPT, NEAR ENGINE CONTROL MODULE) MPX MPX-B FUSE ORG/ WIRE PASSENGER SIDE J/B (BEHIND LOWER RIGHT END OF DASH) RADIATOR FAN MOTOR RADIO 2 FUSE RDI FAN FUSE RED WIRE RED/YEL WIRE WATER TEMPERATURE SWITCH (ON RIGHT SIDE OF RADIATOR) WHT WIRE WHT/BLK WIRE WHT/BLU 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

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