Toyota Avalon XX20 (1999-2002) body ecu Wiring diagrams

1 4 UNLK 16 14 3 21 9 RCTY 5 20 23 24 DCTY BZ 6 3 UNLK BLK WIRE BLK/RED WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU COMBINATION METER CPUB CPUB GND DOOR 1 FUSE DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) DSWH ECU-B FUSE ECU-IG 2 FUSE ENGINE HOOD COURTESY SWITCH (ON CENTER FRONT OF ENGINE COMPT) ENGINE ROOM J/B (ON LEFT FRONT INNER FENDER PANEL) FRONT PASSENGER DOOR ECU (IN RIGHT FRONT DOOR) GND KEYE KUL KL LSWD GRN WIRE GRN/BLK WIRE GRN/WHT WIRE HORN FUSE HOT AT ALL TIMES HOT IN ON OR START IND J/B 3 (BEHIND LEFT KICK PANEL) J/B 4 (BEHIND RIGHT KICK PANEL) J/C 10 (FRONT OF RIGHT INNER QUARTER PANEL) KEYE KUL KL LSWP LEFT FRONT DOOR COURTESY SWITCH LEFT FRONT DOOR LOCK ASSEMBLY LEFT REAR DOOR COURTESY SWITCH LOCK LT GRN WIRE LUG KSW LUGGAGE COMPARTMENT DOOR KEY UNLOCK SWITCH ORG/ WIRE PCTY PNK/BLU WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR COURTESY SWITCH RIGHT FRONT DOOR LOCK ASSEMBLY RIGHT REAR DOOR COURTESY SWITCH SECURITY INDICATOR SH SH- SIG THEFT DETERRENT BUZZER (ON RIGHT REAR OF ENGINE COMPT) THEFT DETERRENT ECU (BEHIND RIGHT SIDE OF DASH) THEFT DETERRENT HORN (ON RIGHT REAR OF ENGINE COMPT) UNLOCK WARNING SWITCH VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/RED WIRE

A/C CONTROL ASSEMBLY AIR OUTLET CONTROL SERVO MOTOR AUTO A/C BLK/ WHT WIRE BODY ECU COLUMN SHIFT DOOR CONTROL RECEIVER FLOOR SHIFT FUEL PUMP HEATER CONTROL ASSEMBLY J/B 4 (BEHIND RIGHT KICK PANEL) J/C 11 (LEFT FRONT OF LUGGAGE COMPT) J/C 14 (UNDER LEFT FRONT SEAT) J/C 6 (BEHIND RIGHT CENTER OF DASH) LEFT FRONT BUCKLE SWITCH LEFT FRONT LUMBAR SUPPORT CONTROL SWITCH LEFT FRONT POWER SEAT CONTROL SWITCH LEFT FRONT SEAT HEATER LEFT REAR DOOR LOCK MOTOR LEFT REAR INTERIOR LIGHT LEFT REAR POWER WINDOW CONTROL SWITCH LEFT REMOTE CONTROL MIRROR SWITCH LEFT FRONT DOOR ECU MANUAL A/C POWER SEAT ECU PWR POINT RELAY REMOTE CONTROL MIRROR SWITCH RIGHT FRONT DOOR ECU RIGHT REMOTE CONTROL MIRROR SWITCH SHIFT LOCK ECU TRANSPONDER KEY AMPLIFIER VOLTAGE INVERTER VSC OFF SWITCH W/ MEMORY W/ MEMORY W/O MEMORY W/ POWER SEAT W/O POWER SEAT W/O MEMORY WASHER LEVEL WARNING SWITCH WHT/BLK WIRE

A/C CONTROL ASSEMBLY ABS, BA, TRAC, VSC ECU BODY ECU BRN WIRE CENTER AIRBAG SENSOR ASSEMBLY CENTER REAR OF LUGGAGE COMPT) CIGARETTE LIGHTER COMBINATION METER COMBINATION SWITCH DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) NOISE FILTER 1 FROM J/C 6 (DIAGRAM 2 OF 4) HIGH MOUNTED STOP LIGHT INNER MIRROR J/B 3 (BEHIND LEFT KICK PANEL) J/C 4 (BEHIND RIGHT SIDE OF DASH) J/C 10 (RIGHT FRONT SIDE OF LUGGAGE COMPT) J/C 12 (RIGHT REAR SIDE OF LUGGAGE COMPT) J/C 4 (BEHIND RIGHT SIDE OF DASH) KEY INTERLOCK SOLENOID UNLOCK WARNING SWITCH LEFT BACK-UP LIGHT LEFT FRONT LEFT LICENSE PLATE LIGHT LEFT REAR COMBINATION LIGHT LEFT VANITY LIGHT RIGHT VANITY LIGHT LIGHT FAILURE SENSOR LUGGAGE COMPARTMENT DOOR KEY UNLOCK SWITCH MOON ROOF CONTROL ECU MOON ROOF CONTROL SWITCH NOISE FILTER 2 PERSONAL LIGHT RED/BLU WIRE RELAY RIGHT BACK-UP LIGHT RIGHT BUCKLE SWITCH RIGHT FRONT LEFT REAR RIGHT FRONT POWER SEAT CONTROL SWITCH RIGHT FRONT SEAT HEATER RIGHT LICENSE PLATE LIGHT RIGHT REAR RIGHT REAR COMBINATION LIGHT RIGHT REAR DOOR LOCK MOTOR RIGHT REAR INTERIOR LIGHT RIGHT REAR POWER WINDOW CONTROL SWITCH SEAT BELT WARNING OCCUPANT DETECTION SENSOR STEREO COMPONENT AMPLIFIER TO J/C 5 (DIAGRAM 4 OF 4) TRANSLATE ECU W/ DRL W/ MOON- ROOF W/ POWER SEAT W/ TRACTION CONTROL WHEEL SPEED SENSOR SHIELDS WHT/BLK WIRE YAW RATE SENSOR SHIELD

4 3 1 CLTS CLTE CLTB 5 15 24 10 DCTY PKB 7 21 PRG RDA AUTOMATIC LIGHT CONTROL SENSOR (TOP LEFT SIDE OF DASH) BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BODY ECU COMBINATION SWITCH DOOR COURTESY SWITCH (LEFT FRONT) DOOR LOCKS SYSTEM (DOOR CONTROL RECEIVER) DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) DRL DRL FUSE ENGINE ROOM J/B (ON LEFT FRONT INNER FENDER PANEL) ENGINE ROOM R/B 5 (ON LEFT INNER FENDER PANEL) FLASH DIMMER SWITCH FLASH LO HIGH FOGLIGHT SWITCH GENERATOR GENERATOR GRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE HEAD AUTO HEAD RELAY HF HU AUTO TAIL HEAD HOT AT ALL TIMES HRLY PCTY RCTY ALTL CLTS CLTE CLTB 3 16 6 8 7 20 INTERIOR LIGHTS SYSTEM (COURTESY SWITCHES) J/B 3 (BEHIND LEFT KICK PANEL) J/C 4 (BEHIND RIGHT SIDE OF DASH) LEFT HEAD LIGHT (LOW) LIGHT CONTROL SWITCH OFF LOWER LEFT HEAD FUSE LOWER RIGHT HEAD FUSE LT GRN WIRE MAIN FUSE OFF TAIL PNK 14 12 HEAD AUTO WIRE ORG/ WIRE PARKING BRAKE SWITCH (BASE OF PARKING BRAKE LEVER) PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT HEAD- LIGHT LOW TAIL WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

BODY ECU DRIVERS SIDE J/B (BEHIND LEFT SIDE OF DASH) ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPARTMENT) GRN WIRE GRN/BLK WIRE GRN/WHT WIRE HORN FUSE HORN RELAY HORN SWITCH (PART OF COMBINATION SWITCH) HOT AT ALL TIMES LEFT HORN (LEFT FRONT OF ENGINE COMPARTMENT) RIGHT HORN (RIGHT FRONT OR ENGINE COMPARTMENT) WHT WIRE

A/C CONTROL ASSEMBLY, HEATER CONTROL SWITCH A/F FUSE A/F RELAY A/F SENSOR AM 2 FUSE BLK WIRE BLK/ORG WIRE BLK/WHT WIRE BLU WIRE BODY ECU BODY ECU, ABS ACTUATOR AND ECU, ABS ACTUATOR AND ECU BODY ECU, HORN SWITCH C/OPN RELAY DCC FUSE DEF RELAY DOME FUSE DOOR NO. 2 FUSE DRIVER DOOR ECU, LIGHT FAILURE SENSOR TO POWER OUTLET DRL NO. 2 RELAY ECU-B FUSE ECU-IG GAUGE NO 2 NO 1 FUSE FUSE DEF RELAY ECU-IG NO 1 FUSE EFI NO 1 FUSE EFI NO 2 FUSE EFI RELAY ENGINE CONTROL MODULE ENGINE CONTROL MODULE, TRANSPONDER KEY AMPLIFIER FR P/W DEF FUSE FUSE FROM DRIVER SIDE J/B FROM DRIVER SIDE J/B (DIAGRAM 1 OF 3) FROM FUSIBLE LINK BLOCK (ALT FUSE) (DIAGRAM 1 OF 3) FROM IG 1 RELAY (DIAGRAM 1 OF 3) FRONT PARKING LIGHTS, EXTERIOR LIGHTS FRONT PASS DOOR ECU NOISE FILTER, REAR WINDOW DEFOGGER GAUGE NO 2 FUSE GENERATOR GRN WIRE HAZ ALT-S FUSE FUSE HAZARD SWITCH HAZARD SWITCH WIPER WASHER SWITCH HEAD RELAY HORN FUSE HORN RELAY HORNS HTR FUSE IG 2 FUSE IG 2 RELAY IGNITION COILS INNER MIRROR J/B NO 4 (BEHIND RIGHT KICK PANEL) LT GRN WIRE MAIN FUSE MAIN SWITCH (PIN 3) (DIAGRAM 3 OF 3) MIL LAMP, MULTI- DISPLAY SHIFT LOCK ECU MIR HTR FUSE MIRROR HEATERS MOON ROOF CONTROL ECU MULTI-DISPLAY PANEL TAIL RL P/W FUSE FUSE FUSE PPL PWR RELAY PWR SEAT ECU RADIO FUSE RADIO/ PLAYER, STEREO COMPONENT AMPLIFIER, MULTI- DISPLAY RED WIRE RED/BLK WIRE RIGHT REAR WINDOW SWITCH RR P/W FUSE SRS SRS SRS WARN WARN WARN FUSE FUSE FUSE SRS WARNING WARNING WARNING LIGHT, MULTI- MULTI- MULTI- DISPLAY DISPLAY DISPLAY ST RELAY STARTER TAIL RELAY THEFT DEFERRENT ECU TO IGNITION SWITCH (DIAGRAM 1 OF 3) TURN WIP FUSE FUSE W/DRL WHT WIRE YEL WIRE

1 2 3 5 14 15 18 ACTD ACT+ PCTY LSR 12 8 13 2 3 4 CPUB GND KEYE KUL KL LSWP 23 13 9 10 22 24 CPUB GND KEYE KUL KL LSWD 5 7 11 17 20 21 24 25 DCTY PRG 6 3 2 1 UNLK ACT- TKU BLK WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU CENTER REAR OF LUGGAGE COMPT) DOME FUSE DOOR 1 FUSE DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) ECU-B FUSE ECU-IG 2 FUSE ENGINE ROOM J/B (ON LEFT FRONT INNER FENDER PANEL) FRONT PASSENGER DOOR ECU (IN RIGHT FRONT DOOR) GRN WIRE GRN/RED WIRE HOT AT ALL TIMES HOT IN ON DOOR 2 FUSE HOT IN ON OR START J/B 3 (BEHIND LEFT KICK PANEL) J/B 4 (BEHIND RIGHT KICK PANEL) J/C 11 (LEFT FRONT OF LUGGAGE COMPT) KSW BZ RDA LEFT FRONT DOOR COURTESY SWITCH LEFT REAR DOOR LOCK MOTOR LOCK LT GRN WIRE LUGGAGE COMPARTMENT DOOR OPENER MAIN SWITCH (RIGHT SIDE OF DASH) LUGGAGE COMPARTMENT DOOR OPENER MOTOR (MIDDLE REAR OF TRUNK LID) LUGGAGE COMPARTMENT DOOR OPENER SWITCH (LEFT SIDE OF DASH) ORG/ WIRE PNK WIRE PNK/BLU WIRE RDA PRG RED WIRE RED/BLU WIRE RED/YEL WIRE RIGHT FRONT DOOR COURTESY SWITCH RIGHT REAR DOOR LOCK MOTOR SIG 1 7 UNLOCK WARNING SWITCH WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WIRELESS DOOR LOCK BUZZER (W/ WIRELESS DOOR LOCKS) (RIGHT FRONT OF ENGINE COMPT) WIRELESS DOOR LOCK CONTROL RECEIVER (W/ WIRELESS DOOR LOCKS) (RIGHT "C" PILLAR) YEL WIRE

BLK WIRE BLU WIRE BLU/RED WIRE BODY ECU DOOR NO 1 FUSE DOOR NO. 2 FUSE DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) ECU-IG NO.2 FUSE ENGINE ROOM J/B (ON LEFT FRONT INNER FENDER PANEL) GRN/WHT WIRE HOT AT ALL TIMES HOT IN ON AND START J/B 4 (RIGHT KICK PANEL) J/C 10 (RIGHT FRONT OF LUGGAGE COMPT) J/C 9 (TOP OF RIGHT KICK PANEL) LUG LUGGAGE COMPARTMENT DOOR OPENER MAIN SWITCH (RIGHT SIDE OF DASH) LUGGAGE COMPARTMENT DOOR OPENER MOTOR (MIDDLE REAR OF TRUNK LID) LUGGAGE COMPARTMENT DOOR OPENER SWITCH (LEFT SIDE OF DASH) LUGGAGE COMPARTMENT KEY UNLOCK SWITCH PNK WIRE RIGHT END OF DASH) SIG THEFT DETERRENT ECU (BEHIND RIGHT SIDE OF DASH) TKU VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WIRELESS DOOR LOCK BUZZER (RIGHT FRONT OF ENGINE COMPT)