Toyota Avalon XX20 (1999-2002) body ecu (behind left side of dash) Wiring diagrams

+B BAT ABS ABS ACTUATOR, ECU (ON LEFT REAR OF ENG COMPT) ABS FUSE ACTIVE LIGHT RELAY (BEHIND LEFT SIDE OF DASH) BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/ORG WIRE BLU/WHT WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) BRN WIRE DATA LINK CONNECTOR 1 (ON RIGHT REAR CORNER OF ENGINE COMPT) DATA LINK CONNECTOR 2 (BEHIND LEFT SIDE OF DASH) DIODE (A/T IND LIGHT SWITCH) (BEHIND RIGHT CENTER OF DASH) DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) ECU-IG 2 FUSE ENGINE ROOM J/B (ON LEFT FRONT INNER FENDER PANEL) ENGINE ROOM R/B 5 (ON LEFT INNER FENDER PANEL) FR- FR+ FL- FL+ RL- RL+ GAUGE 1 FUSE GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT IN ON OR START J/B 3 (BEHIND LEFT KICK PANEL) J/B 4 (BEHIND RIGHT KICK PANEL) LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE PARK/NEUTRAL POSITION SWITCH (ON LEFT SIDE OF TRANSAXLE) PARKING BRAKE SWITCH (BEHIND DASH, ON PARKING BRAKE LEVER BRACKET) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE STOP FUSE STOPLIGHT SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) TS TC PKB STP VIO WIRE WA EBDW WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

ACTIVE LIGHT RELAY (BEHIND LEFT SIDE OF DASH) BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) BRAKE FLUID LEVEL WARNING SWITCH (ON BRAKE FLUID RESERVOIR) BRL BRN WIRE DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) STOP FUSE ENG GRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES J/B 3 (BEHIND LEFT KICK PANEL) J/B 4 (BEHIND RIGHT KICK PANEL) LBL LT GRN/BLK WIRE LT GRN/RED WIRE ML+ NEO ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (ON LEFT SIDE OF TRANSAXLE) PARKING BRAKE SWITCH (BEHIND DASH, ON PARKING BRAKE LEVER BRACKET) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RSS SFLH SFLR SFRH SFRR SRLH SRLR SRRH SRRR STEERING SENSOR (COMBINATION SWITCH) STOPLIGHT SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) TRANSLATE ECU (BEHIND RIGHT SIDE OF DASH) TRC+ VIO WIRE VIO/WHT WIRE VSC WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

2 3 4 5 6 7 8 9 10 11 12 SIG ACT- RCTY PBKL TKU AJAR BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK (OR BLU) WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) CLTB DOOR NO 1 FUSE DOOR NO. 2 FUSE DRIVER DOOR ECU (IN DOOR) DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) DRL ECU-ACC FUSE ECU-B FUSE ECU-IG NO 2 FUSE ENGINE ROOM J/B (ON LEFT FRONT INNER FENDFER PANEL) GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HEADLIGHTS SYSTEM HF HEAD AUTO DCTY LGC PRG RLD HORNS SYSTEM HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START HRLY TRLY HORN STOP HU TAIL PKB DBKL KSW TC GSW BZ RDA RLU PNK WIRE ILL J/B 3 (BEHIND LEFT KICK PANEL) J/C 4 (BEHIND RIGHT SIDE OF DASH) LT GRN WIRE LT GRN/RED WIRE ORG/ WIRE PASSENGER DOOR ECU (IN DOOR) PNK/BLU WIRE POWER SEAT ECU (UNDER DRIVER'S SEAT) POWER WINDOWS SYSTEM WARNING SYSTEMS RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RRD DBEW RRU PBEW THEFT DETERRENT ECU (BEHIND RIGHT SIDE OF DASH) TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU (OR BLU) WIRE WHT/GRN WIRE WHT/RED WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

1 2 W/ TRACTION CONTROL W/O TRACTION CONTROL 12 11 TC TS 19 3 TC LA 21 24 TC TS 4 5 PI TC 42 46 TS D/G 8 4 MREL SIL A/D ABS ABS ECU (W/O TRAC CTRL) (LEFT REAR OF ENGINE COMPT) ABS, BA,TRAC, VSC ECU (W/ TRAC CTRL) (BEHIND RIGHT SIDE OF DASH) ACTIVE LIGHT DISPLAY BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/ORG WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) BRN WIRE CENTER AIRBAG CENTER ASSEMBLY (BELOW CENTER OF DASH) CRUISE CONTROL ECU (BEHIND LEFT CENTER OF DASH) DATA LINK CONNECTOR #1 (RIGHT REAR CORNER OF ENGINE COMPARTMENT) DATA LINK CONNECTOR 2 (BEHIND LEFT SIDE OF DASH, ON INSTRUMENT PANEL J/B) DATA LINK CONNECTOR 3 (BEHIND LEFT SIDE OF DASH, ON INSTRUMENT PANEL J/B) DRIVER DOOR ECU (IN DOOR) DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) EFI 1 FUSE EFI 2 FUSE EFI RELAY ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE CONTROLS SYSTEM ENGINE ROOM J/B (ON LEFT FRONT INNER FENDER PANEL) GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/RED WIRE HOT AT ALL TIMES J/B 3 (BEHIND LEFT KICK PANEL) J/B 4 (BEHIND RIGHT KICK PANEL) J/C 5 (BEHIND RIGHT SIDE OF DASH) J/C 7 (BEHIND RIGHT SIDE OF DASH) J/C 9 (TOP OF RIGHT KICK PANEL) LT GRN/BLK WIRE LT GRN/RED WIRE MULTI-DISPLAY OBD II FUSE PASSENGER DOOR ECU (IN DOOR) PNK/BLK WIRE POWER SEAT ECU (UNDER DRIVER'S SEAT) RED/BLU WIRE RED/YEL WIRE SIL THEFT DETERRENT ECU (BEHIND RIGHT SIDE OF DASH) TRANSLATE ECU (RIGHT FRONT KICK PANEL) VIO WIRE WHT WIRE WHT/BLK WIRE

3 2 1 2 ON AJAR DCTY BLK WIRE BLU WIRE BLU/RED WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) CPUB CTYB CTYE DASH) DIODE (LUGGAGE COMPT DOME FUSE DOOR DOOR (2000) (2001) DOOR NO 1 FUSE DOOR NO. 2 FUSE DRIVER DOOR ECU (INSIDE DRIVER'S DOOR) DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) ECU-B FUSE ECU-IG NO 2 FUSE ENGINE ROOM J/B (ON LEFT FRONT INNER FENDER PANEL) FRONT PASSENGER DOOR ECU (INSIDE RIGHT FRONT DOOR) GRN WIRE GRN/BLK WIRE GRN/RED WIRE HOT AT ALL TIMES HOT IN ON OR START IGNITION KEY CYLINDER LIGHT ILL INTERIOR LIGHT) J/B 3 J/B 4 J/C 10 J/C 11 J/C 4 (RIGHT SIDE OF J/C 6 (BEHIND RIGHT CENTER OF DASH) LEFT FRONT DOOR COURTESY LIGHT LEFT FRONT DOOR COURTESY SWITCH LEFT REAR DOOR COURTESY SWITCH LEFT REAR INTERIOR LIGHT LEFT VANITY LIGHT LGC LIGHT) (RIGHT FRONT OF LUGGAGE COMPT) LUGGAGE COMP- ARTMENT LIGHT LUGGAGE COMPT LIGHT SWITCH MULTI-DISPLAY NOISE FILTER (LUGGAGE COMPT LIGHT) OFF OPEN DOOR WARNING LIGHT ORG/ WIRE PCTY PERSONAL LIGHT PNK WIRE PNK/BLU WIRE RCTY RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR COURTESY LIGHT RIGHT FRONT DOOR COURTESY SWITCH RIGHT REAR DOOR COURTESY SWITCH RIGHT REAR INTERIOR LIGHT RIGHT VANITY LIGHT SIG W/MOON- ROOF WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE

A/C SWITCH BACK LIGHT BODY ECU (BEHIND LEFT SIDE OF DASH) CIGARETTE LIGHTER CIRCUIT COMBINATION METER DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) GLOVE BOX LIGHT SWITCH GRN WIRE HAZARD SWITCH W/AUTO A/C W/MANUAL A/C HOT AT ALL TIMES ILL J/B 3 (BEHIND LEFT KICK PANEL) J/B 4 (BEHIND RIGHT KICK PANEL) J/C 2 (BEHIND CENTER OF DASH) J/C 5 (RIGHT SIDE OF DASH) J/C 9 (TOP OF RIGHT KICK PANEL) LIGHT CONTROL SWITCH (PART OF COMBINATION SWITCH) MULTI-DISPLAY O/D MAIN SWITCH (W/FLOOR SHIFT) OFF HEAD TAIL PANEL FUSE PNK WIRE POWER OUTLET MAIN SWITCH RADIO, PLAYER REMOTE CONTROL MIRROR SWITCH RHEOSTAT TAIL RELAY W/6 SPEAKER W/7 SPEAKER WHT/BLK WIRE WHT/GRN WIRE

12 15 19 CPUB VSSR PVC 13 25 14 19 2 1 18 7 9 20 21 IG SYSB 13 8 13 18 11 GND 16 15 17 20 DMHR DM+R DMVR 17 18 16 10 11 8 PMHR PM+R PMVR 8 7 B+ GND BLK WIRE BLU WIRE BLU/ORG WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CPUB VSSR DVC DEFOGGER SYSTEM DOWN DRIVER DOOR ECU (IN DOOR) DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) ECU-B FUSE GAUGE 1 FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN ON OR START HSSR J/B 3 (BEHIND LEFT KICK PANEL) J/C 11 (LEFT FRONT OF LUGGAGE COMPT) J/C 14 (UNDER DRIVER'S SEAT) J/C 3 (RIGHT CENTER OF DASH) J/C 6 (BEHIND RIGHT CENTER OF DASH) LEFT LEFT REMOTE CONTROL MIRROR LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MEMORY SET SWITCH OPERATION SWITCH ORG/ WIRE PASSENGER DOOR ECU (IN DOOR) PNK 8 WIRE PNK WIRE POWER SEAT ECU (UNDER DRIVER'S SEAT) POWER SEAT FUSE RED WIRE RED/BLK WIRE RED/YEL WIRE REMOTE CONTROL MIRROR SWITCH RIGHT RIGHT REMOTE CONTROL MIRROR SELECT SWITCH SET- SGND MIRG MIRB MIRE SWE MMRY WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

ALT FUSE BLK WIRE BLU WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) CENTER REAR OF LUGGAGE COMPT) DOWN DRIVER DOOR ECU (IN DOOR) DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) ECU-B FUSE FL P/W FUSE FR P/W FUSE RL P/W FUSE FRONT PASSENGER DOOR ECU (IN DOOR) FUSIBLE LINK BLOCK (LEFT FRONT INNER FENDER PANEL) GRN WIRE GRN/BLK WIRE GRN/YEL WIRE HOT AT ALL TIMES J/B 3 (BEHIND RIGHT CENTER OF DASH) J/C 11 (LEFT FRONT OF LUGGAGE COMPT) J/C 6 (BEHIND RIGHT CENTER OF DASH) LEFT FRONT POWER WINDOW MOTOR LEFT REAR POWER WINDOW CONTROL SWITCH LEFT REAR POWER WINDOW MOTOR LIMIT SWITCH ORG/ WIRE PNK WIRE PNK/BLK WIRE POWER RELAY PULSE SENSOR RED WIRE RED/BLK WIRE RED/YEL WIRE RIGHT FRONT POWER WINDOW MOTOR RIGHT REAR POWER WINDOW CONTROL SWITCH RIGHT REAR POWER WINDOW MOTOR RR P/W FUSE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/RED WIRE

+SR P+ P- SIL D- D+ +SL 1 2 3 4 5 6 7 8 9 10 11 12 FR- FR+ 1 2 3 4 5 6 7 8 9 10 11 12 PL- PL+ AIR BAG SQUIB (FRONT PASSENGER AIR BAG ASSEMBLY) AIR BAG SQUIB (STEERING WHEEL PAD) BLK WIRE BLK/ORG WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CENTER AIR BAG SENSOR ASSEMBLY (BELOW CENTER OF DASH) DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) ENGINE ROOM J/B (ON LEFT FRONT INNER FENDER PANEL) ESL FL+ FL- VUPL GRN WIRE GRY WIRE GRY/BLU WIRE GSW HOT AT ALL TIMES HOT IN ACC OR ON IGNITION SWITCH J/B 3 (BEHIND LEFT KICK PANEL) J/B 4 (BEHIND RIGHT KICK PANEL) J/C 5 (BEHIND RIGHT SIDE OF DASH) LA GSW LEFT AIR BAG SENSOR (LEFT FRONT OF VEHICLE) LEFT PRETENSIONER (AT BOTTOM OF LEFT "B" PILLAR) LEFT SIDE AIR BAG SENSOR (AT BOTTOM OF LEFT "B" PILLAR) LEFT SIDE AIR BAG SQUIB LOCK ON LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MULTI-DISPLAY ORG/ WIRE PNK VUPR WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PR+ PR- ESR RED WIRE RIGHT AIR BAG SENSOR (RIGHT FRONT OF VEHICLE) RIGHT PRETENSIONER (AT BOTTOM OF RIGHT "B" PILLAR) RIGHT SIDE AIR BAG SENSOR (AT BOTTOM OF RIGHT "B" PILLAR) RIGHT SIDE AIR BAG SQUIB SL- SPIRAL CABLE SRS WARNING LIGHT SRS-ACC FUSE SRS-WRN FUSE SSL+ SSL- SSR+ SSR- TC -SR WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

16 4 7 5 BAT CG SIL SG A/F FUSE A/F RELAY BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) BRN WIRE CIRCUIT OPENING RELAY CRUISE CONTROL SYSTEM DATA LINK CONNECTOR 3 (BEHIND LEFT SIDE OF DASH) DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) DRIVER SIDE R/B 6 (BEHIND LEFT KICK PANEL) EFI 1 FUSE EFI 2 FUSE EFI RELAY ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID (ON LEFT SIDE OF TRANSAXLE) ENGINE ROOM J/B (ON LEFT FRONT INNER FENDER PANEL) FUEL PUMP FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER J/B 3 (BEHIND LEFT KICK PANEL) J/B 4 (BEHIND RIGHT KICK PANEL) J/C 11 (LEFT FRONT SIDE OF TRUNK) J/C 5 (BEHIND RIGHT SIDE OF DASH) J/C 7 (BEHIND RIGHT SIDE OF DASH) J/C 8 (BEHIND RIGHT SIDE OF DASH) J/C 9 (ON TOP OF RIGHT KICK PANEL) LT GRN WIRE NCA WIRE OD OFF ORG/ WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RELAY SL SLN- SLN+ WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE