Lexus RX I (1997-2003) red/blu Wiring diagrams

12 13 12 5 MPX- MPX+ 15 16 17 RCO RDA RSSI 2 9 11 BECU 4 5 10 11 14 17 18 21 23 25 CYL SIG 5 10 BCTY ILE BDR CTY CPUB CTYB CTYE GND BLK WIRE BLK/ORG WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) BSUB IG COMBINATION METER ECU CTY SIG BDR CPUB CTYE GND D RR DOOR FUSE DRIVER DOOR ECU (IN LEFT FRONT DOOR) ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) FRONT PASSENGER DOOR ECU (IN RIGHT FRONT DOOR) GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT CONTROL PANEL INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/B 3 (BEHIND UPPER CENTER OF DASH) J/C 3, J/C 4 (LEFT KICK PANEL) J/C 5 (TOP OF LEFT KICK PANEL) J/C 9 (RIGHT END OF DASH) LEFT FRONT DOOR COURTESY LIGHT LEFT FRONT DOOR COURTESY SWITCH LEFT REAR DOOR COURTESY SWITCH LEFT REAR DOOR ECU (IN LEFT REAR DOOR LT GRN WIRE OPEN DOOR INDICATOR P FR DOOR FUSE P RR DOOR FUSE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR COURTESY LIGHT RIGHT FRONT DOOR COURTESY SWITCH SOLID STATE VCC CODE SQ VIO WIRE W/ NAV W/O NAV WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE WIRELESS DOOR LOCK ECU (IN CENTER OF VEHICLE) YEL WIRE YEL/BLK WIRE YEL/RED WIRE

BACK DOOR COURTESY SWITCH BLK WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE CTY SIG BDR CPUB CTYE DOME FUSE DOOR ECU-B FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) F/L DOOR FUSE FRONT INTERIOR LIGHT GARAGE DOOR OPENER (IF EQUIPPED) GRN/BLK WIRE HOT AT ALL TIMES IGNITION KEY CYLINDER LIGHT INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/B 5 (BEHIND UPPER LEFT SIDE OF DASH) J/C 14 (IN LEFT SIDE OF LIFTGATE) J/C 3, J/C 4 (LEFT KICK PANEL) J/C 5 (TOP OF LEFT KICK PANEL) LEFT VANITY LIGHT OFF PERSONAL LIGHT REAR INTERIOR LIGHT REAR INTERIOR LIGHT DIODE (IN REAR CENTER OF ROOF) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR DOOR COURTESY SWITCH RIGHT REAR DOOR ECU (IN RIGHT REAR DOOR) RIGHT VANITY LIGHT WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 HS- ST- T+ IL BI (UPPER LEFT SIDE OF REAR AXLE HOUSING) BLK WIRE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HAZARD FUSE HEATER FUSE HIGH MOUNTED STOP LIGHT HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/B 3 (BEHIND LEFT KICK PANEL) J/B 5 (BEHIND UPPER LEFT SIDE OF DASH) J/C 1 (IN ENGINE COMPARTMENT, ON RIGHT FRONT FENDER) J/C 12 (IN LEFT SIDE OF LUGGAGE COMPARTMENT) J/C 13 (IN LEFT SIDE OF LIFTGATE) J/C 14 (IN LEFT SIDE OF LIFTGATE) J/C 15 (UNDER RIGHT REAR SEAT) J/C 2 (IN LEFT FRONT OF ENGINE COMPARTMENT, BEHIND HEADLIGHT) JUNCTION CONNECTORS 3, 4 (IN LEFT KICK PANEL) LEFT FRONT TURN SIGNAL LIGHT LEFT TURN SIGNAL LIGHT LIGHT FAILURE SENSOR (IN LEFT SIDE OF LUGGAGE COMPARTMENT) LT/S RT/S TL GND ORG/ WIRE REAR LIGHTS WARNING LIGHT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT TURN SIGNAL LIGHT RIGHT REAR COMBINATION LIGHT RIGHT REAR SIDE MARKER LIGHT RIGHT REAR TURN SIGNAL LIGHT RIGHT STOP LIGHT RIGHT STOP LIGHT RIGHT TAIL LIGHT RIGHT TURN SIGNAL LIGHT SOLID STATE ST+ IG T- STOP FUSE STOP LIGHT SWITCH TL LT RT GND TOWING FUSE TRAILER CONVERTER (FORWARD OF LEFT TAILLIGHT) TL L/S R/T TRAILER SOCKET (BELOW LEFT SIDE OF REAR BUMPER) WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 CLTB 2 12 14 15 16 BECU HRLY DRL HEAD TAIL 21 17 MPX+ MPX- 5 6 7 9 12 20 21 IG FFGO TRLY CLTE CLTB 8 19 20 KSW PKB HF AUTOMATIC LIGHT CONTROL SENSOR BDR CTY CPUB CTYE GND BLK WIRE BLK/ORG WIRE BLU WIRE BLU/BLK WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) BRN/WHT WIRE CLTE CLTS CLTS COMBINATION METER ECU COMBINATION SWITCH DIMMER SWITCH DRIVER DOOR ECU (IN LEFT FRONT DOOR) ECU-B FUSE DOME FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) F/L DOOR FUSE FOGLIGHT SWITCH GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE H-LP L LWR FUSE H-LP R LWR FUSE HEADLAMP RELAY HIGH HIGH FLASH FLASH LOW LOW HIGH LOW FLASH HOT AT ALL TIMES HU FFOG INSTRUMENT CONTROL PANEL INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/B 5 (BEHIND UPPER LEFT SIDE OF DASH) J/C 1 (IN ENGINE COMPARTMENT, ON RIGHT FRONT FENDER) J/C 2 (IN LEFT FRONT OF ENGINE COMPARTMENT, BEHIND HEADLIGHT) J/C 5 (TOP OF LEFT KICK PANEL) J/C 7 (UPPER LEFT END OF DASH) J/C 9 (BEHIND RIGHT KICK PANEL) LEFT FRONT DOOR COURTESY SWITCH LEFT LOW BEAM HEADLIGHT LIGHT CONTROL SWITCH LT GRN WIRE LT GRN/RED WIRE MAIN FUSE MPX OFF PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT LOW BEAM HEADLIGHT TAIL HEAD OFF AUTO UNLOCK WARNING SWITCH W/ HID W/O HID W/O HID W/ HID WHT WIRE WHT/BLK WIRE YEL/BLK WIRE YEL/RED WIRE

BLK WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CANADIAN MODELS COMBINATION METER ECU DAYTIME RUNNING LIGHT RESISTOR (ON LEFT FRONT OF ENGINE COMPARTMENT) DRL 2 RELAY DRL 3 RELAY DRL 4 RELAY DRL FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) FOG LIGHT RELAY FR FOG FUSE TAIL FUSE GAUGE FUSE GRN WIRE GRN/WHT WIRE GRN/YEL WIRE H-LP L UPR FUSE H-LP R UPR FUSE HEAD (USA) INDICATOR HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/B 3 (BEHIND UPPER CENTER OF DASH) J/B 5 (BEHIND UPPER LEFT SIDE OF DASH) J/C 1 (IN ENGINE COMPARTMENT, ON RIGHT FRONT FENDER) J/C 2 (IN LEFT FRONT OF ENGINE COMPARTMENT, BEHIND HEADLIGHT) J/C 4 (LEFT KICK PANEL) LEFT FRONT FOG LIGHT LEFT HEADLIGHT ECU (BEHIND LEFT HEADLIGHT) (W/ HID) LEFT HIGH BEAM HEADLIGHT (W/O HID) LT GRN WIRE LT GRN/RED WIRE PARKING BRAKE SWITCH R/B 2 R/B 3 (ON FRONT CENTER OF ENGINE COMPARTMENT, ON RADIATOR SUPPORT) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT FOG LIGHT RIGHT HEADLIGHT ECU (BEHIND RIGHT HEADLIGHT) (W/ HID) RIGHT HIGH BEAM HEADLIGHT (W/O HID) SHORT CONNECTOR (ON LEFT FRONT OF ENGINE COMPARTMENT) SOLID STATE TAILLIGHT RELAY US MODELS W/ HID W/O HID W/O HID (ENGINE HARNESS, LEFT SIDE OF ENGINE) WHT WIRE WHT/BLK WIRE YEL WIRE

ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE CHG- RHG RH+ RHT RH- RHE IG COMBINATION METER ECU-IG FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) GENERATOR GRN/BLK WIRE GRN/YEL WIRE GRY/YEL WIRE HEAD- LAMP RELAY HEADLIGHT BEAM LEVEL CNTRL WARNING LIGHT HEADLIGHT BEAM LEVEL CONTROL ECU (BEHIND LEFT END OF DASH) HEATER FUSE HEIGHT CONTROL SENSOR (UNDER REAR OF VEHICLE) HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/B 3 (BEHIND UPPER CENTER OF DASH) J/C 4 (BEHIND LEFT KICK PANEL) J/C 9 (BEHIND RIGHT KICK PANEL) LEFT HEADLIGHT BEAM LEVEL CONTROL ACTUATOR MAIN FUSE PNK SGR WIRE PNK WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT HEADLIGHT BEAM LEVEL CONTROL ACTUATOR SBR WNG LHG LH+ LHT LH- LHE SPDL SPDN VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/GRN WIRE

BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRAIDED BRAIDED VG BRN WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM (DATA LINK CONNECTOR) CRUISE CONTROL ECU (BEHIND LEFT SIDE OF DASH) SPD SPD ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) DOME FUSE EXTERIOR LIGHTS SYSTEM (BACK-UP LIGHT SWITCH) GAUGE FUSE GRN WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN ACC OR RUN HOT IN START OR RUN HOT W/TAILLIGHT RELAY ENERGIZED INSTRUMENT CONTROL PANEL INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/B 3 (BEHIND UPPER CENTER OF DASH) J/B 5 (BEHIND UPPER LEFT SIDE OF DASH) J/C 12 (UNDER REAR SEAT) J/C 3, J/C 4 (BEHIND LEFT KICK PANEL) J/C 3, J/C 4 (BENIND LEFT KICK PANEL) MULTI-DISPLAY NAVIGATION ECU (AT RIGHT REAR CORNER OF LUGGAGE COMPT) PANEL FUSE PARKING BRAKE SWITCH PKB TC PNK WIRE PNK/BLK WIRE RADIO 2 FUSE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE SOUND SYSTEMS SOUND SYSTEMS SOUND SYSTEMS SYNC TAIL VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

GAUGE FUSE GRN WIRE GRN/ORG WIRE HOT IN RUN OR START INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 15 (UNDER RIGHT REAR SEAT) J/C 17 (UNDER DRIVER'S SEAT) J/C 18 (UNDER PASSENGER'S SEAT) J/C 3, J/C 4 (BEHIND LEFT KICK PANEL) LEFT BUCKLE SWITCH (IN BUCKLE) LEFT TENSION REDUCER SOLENOID (AT BASE OF LEFT "B" PILLAR) RED/BLU WIRE RIGHT BUCKLE SWITCH (IN BUCKLE) RIGHT TENSION REDUCER SOLENOID (AT BASE OF RIGHT "B" PILLAR) WHT/BLK WIRE

1 2 6 9 11 17 RDR+ BECU RDR- 1 2 SOLID STATE 15 16 17 18 19 RCO RDA RSSI BDSU BDSL 2 5 6 10 11 13 14 16 17 18 19 23 24 25 A- SIG KL 5 12 13 12 MPX+ MPX- A+ BDR LSW CTY CPUB KUL CTYE LSWE GND BACK DOOR COURTESY SWITCH BACK DOOR KEY LOCK, UNLOCK SWITCH BACK DOOR MOTOR ASSEMBLY (IN LIFTGATE) BACK DOOR UNLOCK DETECTION SWITCH BLK WIRE BLK/ORG WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) BSUB IG BZR BCTY KSW COMBINATION METER ECU D RR DOOR FUSE DOOR KEY LOCK, UNLOCK SWITCH DOOR LOCK MOTOR DOOR UNLOCK DETECTION SWITCH DRIVER DOOR ECU (IN LEFT FRONT DOOR) ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) 18 11 18 11 GAUGE FUSE GRN WIRE GRN/BLK WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT CONTROL PANEL INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/B 3 (BEHIND UPPER CENTER OF DASH) J/C 14 (IN LEFT SIDE OF LIFTGATE) J/C 5 (TOP OF LEFT KICK PANEL) JUNCTION CONNECTOR (LEFT KICK PANEL) LEFT FRONT DOOR COURTESY SWITCH LEFT FRONT DOOR LOCK ASSEMBLY (IN LEFT FRONT DOOR) LOCK LSWA LT GRN WIRE LT GRN/RED WIRE MPX+ MPX- P FR DOOR FUSE P RR DOOR FUSE PNK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE UN- LOCK LOCK UNLOCK UNLOCK DOOR LOCK CONTROL SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE WIRELESS DOOR LOCK BUZZER (W/KEYLESS ENTRY) YEL WIRE YEL/BLK WIRE YEL/RED WIRE

2 5 6 10 11 13 14 16 17 18 19 23 24 25 A- SIG KL A+ BDR LSW CTY CPUB KUL CTYE LSWE GND A- 4 5 8 9 13 14 15 17 18 19 20 25 A- 4 5 8 9 13 14 15 17 18 19 25 BLK WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE CTY SIG A+ BDR CPUB LSW CTYE LSWE CTY SIG A+ BDR CPUB LSW CTYE LSWE GND DOOR KEY LOCK, UNLOCK SWITCH DOOR LOCK CONTROL SWITCH DOOR LOCK MOTOR DOOR UNLOCK DETECTION SWITCH ECU-B FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) F/L DOOR FUSE FRONT PASSENGER DOOR ECU (IN RIGHT FRONT DOOR) GRN/BLK WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES J/C 7 (UPPER LEFT END OF DASH) J/C 9 (RIGHT END OF DASH) LEFT REAR DOOR COURTESY SWITCH LEFT REAR DOOR ECU (IN LEFT REAR DOOR LEFT REAR DOOR LOCK ASSEMBLY (IN LEFT REAR DOOR) LEFT REAR DOOR UNLOCK DETECTION SWITCH LOCK LT GRN WIRE PNK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR COURTESY SWITCH RIGHT FRONT DOOR LOCK ASSEMBLY (IN RIGHT FRONT DOOR) RIGHT REAR DOOR COURTESY SWITCH RIGHT REAR DOOR ECU (IN RIGHT REAR DOOR) RIGHT REAR DOOR LOCK ASSEMBLY (IN RIGHT REAR DOOR) RIGHT REAR DOOR UNLOCK DETECTION SWITCH UNLOCK UNLOCK WARNING SWITCH VCC CODE SQ VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE WIRELESS DOOR LOCK ECU (W/KEYLESS ENTRY) (IN CENTER OF VEHICLE) YEL WIRE YEL/RED WIRE