Lexus RX I (1997-2003) (top center of dash) Wiring diagrams

A/T INDICATOR SWITCH (PART OF PARK/NEUTRAL POSITION SWITCH, ON TRANSAXLE) ABS, BA, TRAC, VSC ECU (BEHIND RIGHT SIDE OF DASH) BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE FLUID LEVEL SWITCH BRL BRN/WHT WIRE COMBINATION METER CRUISE CONTROL SYSTEM D/G CSW GYAW YAW DATA LINK CONNECTOR 3 (UNDER LEFT SIDE OF DASH) DECELERATION ENG ENG+ PKB TRC- ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) GAUGE FUSE GGND GGND RR+ RR- GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE GYAW HEATER FUSE 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/B 5 (BEHIND UPPER LEFT SIDE OF DASH) J/B 5 (BEHIND UPPER LEFT SIDE OF DASH) J/C 7 (BEHIND UPPER LEFT SIDE OF DASH) J/C 8 (BEHIND RIGHT SIDE OF DASH) J/C 9 (BEHIND RIGHT KICK PANEL) LBL LEFT REAR ABS SPEED SENSOR LT GRN WIRE LT GRN/BLK WIRE NEO PNK WIRE PNK WT WIRE PNK/BLK WIRE PRO VSCW WA IND STP RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR ABS SPEED SENSOR PARKING BRAKE SWITCH (ON BRAKE LEVER) SHIELD GSS RL+ RL- SHIELD YSS YD BZ CCS SLIP IND VSC IND ABS IND BRAKE IND STOP FUSE STOPLIGHT SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) TC TS TRAC OFF IND TRACTION CUT SWITCH TRC+ VGS VIO WIRE VYS WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YAW RATE SENSOR (LEFT REAR OF VEHICLE)

1 4 5 8 9 13 14 15 17 18 19 25 A- A- 4 5 8 9 13 14 15 17 18 19 20 25 BACK DOOR COURTESY SWITCH 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 LOCKS SYSTEM ECU-B FUSE ENGINE HOOD COURTESY SWITCH (ON FRONT CENTER OF ENGINE COMPARTMENT) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) F/L DOOR FUSE GRN/BLK WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES J/C 1 (IN ENGINE COMPARTMENT, ON RIGHT FRONT FENDER) J/C 14 (IN LEFT SIDE OF LIFTGATE) J/C 7 (UPPER LEFT END OF DASH) JUNCTION CONNECTOR (LEFT KICK PANEL) LEFT REAR DOOR COURTESY SWITCH LEFT REAR DOOR ECU (IN LEFT REAR DOOR LT GRN WIRE LT GRN/BLK WIRE 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) THEFT DETERRENT HORN (IN RIGHT REAR CORNER OF ENGINE COMPARTMENT) UNLOCK WARNING SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL/RED WIRE

1 2 3 4 5 6 7 C/C 10 5 TC PI 12 19 SIL TC 3 4 TC TS 5 12 13 12 MPX+ MPX- ABS, BA, TRAC, VSC ECU (BEHIND RIGHT SIDE OF DASH) BLK/ORG WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CENTER AIR BAG SENSOR ASSEMBLY (UNDER CENTER OF DASH) CG SG COMBINATION METER ECU (BEHIND COMBINATION METER) CRUISE CONTROL ECU (BEHIND LEFT SIDE OF DASH) CRUISE IND DATA LINK CONNECTOR (DLC) 3 (UNDER LEFT SIDE OF DASH) DRIVER DOOR ECU (IN LEFT FRONT DOOR) ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) FRONT PASSENGER DOOR ECU (IN RIGHT FRONT DOOR) HOT AT ALL TIMES INSTRUMENT CONTROL PANEL INSTRUMENT PANEL J/B J/B 5 (BEHIND UPPER LEFT SIDE OF DASH) LEFT REAR DOOR ECU (IN LEFT REAR DOOR MOON ROOF CONTROL ECU (ON FRONT CENTER OF MOON ROOF) MPX MULTI-DISPLAY OBD FUSE ORG/ WIRE PNK/BLK WIRE POWER SEAT ECU (UNDER DRIVER'S SEAT) RIGHT REAR DOOR ECU (IN RIGHT REAR DOOR) SIL TAC TACH TC TS VIO WIRE W/O NAVIGATION W/ NAVIGATION WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

13 1 4 TC C/C CG ABS, BA, TRAC, VSC ECU (BEHIND RIGHT SIDE OF DASH) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER ECU (BEHIND COMBINATION METER) COMBINATION SWITCH CRUISE CRUISE CONTROL ACTUATOR (LEFT REAR OF ENGINE) CRUISE CONTROL ECU (LEFT SIDE OF DASH) CRUISE CONTROL IND CRUISE CONTROL SWITCH DATA LINK CONNECTOR 3 (UNDER LEFT SIDE OF DASH) ECU-IG FUSE ENGINE CONTROL MODULE GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON, START IDLO INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) J/B 3 (BEHIND UPPER CENTER OF DASH) J/B 5 (UPPER LEFT SIDE OF DASH) J/C 5 (BEHIND UPPER LEFT SIDE OF DASH) JUNCTION CONNECTOR J/C 4 (LEFT KICK PANEL) JUNCTION CONNECTOR J/C 8 (RIGHT SIDE OF DASH) P/N PARK/NEUTRAL POSITION SWITCH (ON TOP OF TRANSAXLE) PI ECT MC PNK/BLK WIRE RED WIRE RED/WHT WIRE RED/YEL WIRE RESUME/ ACCEL SET/ COAST STOP FUSE STOPLIGHT SWITCH TC CCS SPD IDL OD MO GND VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/GRN WIRE

ABS, BA, TRAC, VSC ECU BLK WIRE BLOWER MOTOR CONTROL RELAY BRAKE FLUID LEVEL SWITCH CENTER AIR BAG SENSOR ASSEMBLY COMBINATION SWITCH DATA LINK CONNECTOR (DLC) 3 FROM J/B 3 FRONT PASSENGER DOOR ECU STEERING ANGLE SENSOR FRONT WIPER MOTOR FRONT WIPER, WASHER SWITCH (PART OF COMBINATION SWITCH) HEADLIGHT BEAM LEVEL CONTROL ECU HEATER RELAY INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/B 5 (BEHIND UPPER LEFT SIDE OF DASH) J/C 7 (UPPER LEFT END OF DASH) J/C 9 (BEHIND RIGHT KICK PANEL) KEY INTERLOCK SOLENOID RELAY RIGHT REMOTE CONTROL MIRROR HEATER TO J/C 5 (CAVITY A) (DIAGRAM 4 OF 5) TRANSPONDER KEY AMPLIFIER TURN SIGNAL FLASHER TURN SIGNAL SWITCH (PART OF COMBINATION SWITCH) UNLOCK WARNING SWITCH WHT WIRE WHT/BLK 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 DRIVER'S SEAT HEATER HI DRIVER'S SEAT HEATER SWITCH GAUGE FUSE GRN WIRE GRY WIRE 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 15 (UNDER RIGHT REAR SEAT) J/C 17 (UNDER DRIVER'S SEAT) J/C 18 (UNDER PASSENGER'S SEAT) LO HI LT GRN WIRE PASSENGER'S SEAT HEATER LO PASSENGER'S SEAT HEATER SWITCH RED WIRE SEAT HEATER RELAY (BEHIND RIGHT SIDE OF DASH, NEAR ECM) SEAT HTR FUSE WHT 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

1 2 3 6 7 DN LMT UP SGND PLS 1 5 7 8 10 11 12 14 15 17 18 20 23 25 UP SIG PCT LMT AUTO BLK WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/WHT WIRE CTY SIG PCTO PCTI BDR CPUB CTYE PWE AUTO MDN MUP GND DOWN ECU-B FUSE ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) F/L DOOR FUSE FRONT PASSENGER DOOR ECU (IN RIGHT FRONT DOOR) GRN WIRE GRN/BLK WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES J/B 5 (BEHIND UPPER LEFT SIDE OF DASH) J/C 7 (UPPER LEFT END OF DASH) J/C 9 (RIGHT END OF DASH) LEFT REAR DOOR ECU (IN LEFT REAR DOOR LEFT REAR POWER WINDOW MOTOR LIMIT SWITCH LT GRN WIRE LT GRN/BLK WIRE POWER WINDOW CONTROL SWITCH PULSE SENSOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RIGHT FRONT DOOR COURTESY SWITCH RIGHT FRONT POWER WINDOW MOTOR SGND BDR DN CTY CPUB PLS CTYE GND UNLOCK WARNING SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

12 13 14 15 16 17 ODMS 2 3 4 5 6 7 8 9 10 A/C SYSTEM PRE TBP 2 3 4 5 6 7 8 9 10 SLT- SLT+ NT- NT+ A/C SYSTEM LCKI A/T INDICATOR SWITCH (INTEGRAL TO PARK/NEUTRAL POSITION SWITCH) (ON TRANSAXLE) ABS, BA, TRAC, VSC ECU (BEHIND RIGHT SIDE OF DASH) BATT IGSW FC SIL 2 3 4 5 6 7 8 9 10 BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) BRN/WHT WIRE COMPUTER DATA LINES SYSTEM 12 13 14 15 16 17 18 19 20 21 22 ECT EFI ELECTRONICALLY CONTROLLED ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) GENERATOR RL NEO GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) GAUGE FUSE IDL IDLO CF TACH CODE COOLING FANS SYSTEM J/C 8 (BEHIND RIGHT SIDE OF DASH) LT GRN WIRE LT GRN/BLK WIRE MOPS NEO O/D MAIN SWITCH (BELOW CENTER CONSOLE) ORG/ WIRE OXS HTS PNK WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE SPD KSW STA MREL ODLP CCV TC ACMG A/C SYSTEM TRANSMISSION SOLENOID (IN TRANSAXLE) TRANSPONDER KEY AMPLIFIER (IN STEERING COLUMN) TRC+ TRC+ ENG+ STP B+ PTNK TRC- ENG- IMLD TXCT RXCK NSW PNK WIRE UNLOCK WARNING SWITCH VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE