Toyota Avalon XX30 facelift 2 (2010-2012) occupant classification ecu Wiring diagrams

1 2 ACT+ BATB 16 17 18 19 20 21 22 23 24 25 26 GSW LCTY PWS PKB LSWL ILE 6 7 8 9 ALTB EXTERIOR LIGHTS SYSTEM TRLY AIR BAG SENSOR ASSEMBLY CENTER AIR BAG SENSOR ASSEMBLY CENTER (UNDER FRONT OF CENTER FLOOR CONSOLE) SIL ANTI-THEFT SYSTEM BATB BEAN I/F BLK WIRE BLU WIRE BODY ECU BRN WIRE CLTB CLTE CLTS COMBINATION METER DATA LINK CONNECTOR 3 DATA LINK CONNECTOR 3 (LOWER LEFT SIDE OF DASH) SIL DIA DOOR 1 FUSE DOOR 2 FUSE DOOR LOCK CONTROL SWITCH DOOR LOCKS SYSTEM ECU- IG 1 FUSE ECU-ACC FUSE ECU-B FUSE ENGINE ROOM J/B ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) MICON ENGINE ROOM R/B EXTERIOR LIGHTS, POWER WINDOWS SYSTEMS GRN WIRE GRY WIRE GSW HEADLIGHTS SYSTEM HEADLIGHTS, AIR CONDITIONING SYSTEMS HEADLIGHTS, DOOR LOCKS, INSTRUMENT CLUSTER SYSTEMS HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) HOT IN ACC OR ON HOT IN ON OR START IND INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C LCTY LSWL LT BLU WIRE LT GRN WIRE MEMORY SYSTEMS MICON MIRB MIRB MIRS MIRE MIRS MPX OCCUPANT CLASSIFICATION ECU OCCUPANT CLASSIFICATION ECU (FRONT PASSE- NGER'S SEAT) DIA ORG/ WIRE PNK WIRE PNK/ MPX+ WIRE POWER TOPS SYSTEM POWER WINDOW MASTER SWITCH POWER WINDOWS, POWER TOPS SYSTEMS PWS RED WIRE SIDE OF DASH) SIL SUPPLEMENTAL RESTRAINTS SYSTEM TIRE PRESSURE WARNING ECU TIRE PRESSURE WARNING ECU (BEHIND TRANSPONDER KEY ECU TRANSPONDER KEY ECU (W/O SMART KEY SYSTEM) (BEHIND LEFT TRNR TRNR BECU TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM EXTERIOR LIGHTS SYSTEM MEMORY SYSTEMS VIO WIRE WARNING SYSTEMS WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 CAN+ CAN- 16 13 22 SIL CANH CANL 27 41 49 PNK TC CANH CANL WIRE 3 10 TC SIL 42 24 11 25 13 WFSE TS CANH CANL D/G AIR BAG SENSOR ASSEMBLY CENTER AIR BAG SENSOR ASSEMBLY CENTER (UNDER FRONT OF CENTER BLK WIRE BLU WIRE BRN WIRE CAN (+) CG SG CANH SIL LVL D/G DATA LINK CONNECTOR 3 DATA LINK CONNECTOR 3 (LOWER LEFT SIDE OF DASH) DIA ENGINE CONTROL MODULE ENGINE CONTROL MODULE (RIGHT REAR OF ENGINE COMPT) FLOOR CONSOLE) GRN WIRE GRY WIRE HEADLAMP LEVELING ECU HOT AT ALL TIMES INIT INSTRUMENT PANEL J/B INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE LVL OBD FUSE OCCUPANT CLASSIFICATION ECU OCCUPANT CLASSIFICATION ECU (FRONT PASSENGER'S SEAT) ORG/ WIRE PNK 3 14 WIRE PNK WIRE RED WIRE SIL SKID CONTROL ECU W/ ACTUATOR SKID CONTROL ECU W/ ACTUATOR (RIGHT FRONT OF ENGINE COMPT) STEERING COLUMN) STEERING SENSOR STEERING SENSOR (STEERING COLUMN) TIRE PRESSURE WARNING ECU TIRE PRESSURE WARNING ECU (BEHIND RIGHT SIDE OF DASH) TRANSMISSION CONTROL ECU TRANSMISSION CONTROL ECU (LEFT FRONT OF ENGINE COMPT) TRANSPONDER KEY ECU TRANSPONDER KEY ECU (W/O SMART KEY SYSTEM) (BEHIND LEFT SIDE OF DASH) TS TC CANL WFSE BATT VIO WIRE W/ HEADLIGHT BEAM LEVEL CONTROL WFSE WHT WIRE WHT/BLK WIRE YAW RATE SENSOR YAW RATE SENSOR (BELOW REAR OF CENTER FLOOR CONSOLE) YEL WIRE

BLK WIRE CENTER STOP LAMP DRIVER'S SEAT POWER SEAT SWITCH DRIVER'S SIDE FRONT REAR FUEL LID SEAT INNER OPENER SUNSHADE BELT MOTOR RELAY DRIVER'S SIDE FRONT SEAT INNER BELT FRONT PASSENGER'S SEAT POWER SEAT SWITCH FUEL LID OPENER MOTOR FUEL SUCTION PUMP, GAGE ASSEMBLY LEFT "C" PILLAR) LEFT REAR COMBINATION LAMP LEFT REAR DOOR ELECTRICAL KEY OSCILLATOR LEFT REAR DOOR LOCK ASSEMBLY LEFT REAR POWER WINDOW SWITCH LEFT SEAT HEATER LICENSE PLATE LAMP LUGGAGE DOOR LOCK ASSEMBLY LUGGAGE ELECTRICAL KEY SWITCH OCCUPANT CLASSIFICATION ECU POSITION CONTROL ECU, SWITCH POWER SEAT SWITCH (DRIVER'S SEAT LEG SUPPORT CONTROL) POWER SEAT SWITCH (DRIVER'S SEAT LUMBAR SUPPORT CONTROL) REAR SUNSHADE RELAY RIGHT OCCUPANT SEAT CLASSIFICATION HEATER ECU RIGHT REAR COMBINATION LAMP RIGHT SEAT HEATER SEAT LUMBAR SUPPORT CONTROL W/ CLIMATE CONTROL SEAT W/ CLIMATE CONTROL, FRONT PASSENGER SEAT LUMBAR SUPPORT CONTROL W/ DRIVER'S SEAT LEG SUPPORT CONTROL W/ MEMORY W/ SMART KEY W/O CLIMATE CONTROL SEAT W/O CLIMATE CONTROL, FRONT PASSENGER W/O CLIMATE CONTROL, FRONT PASSENGER SEAT LUMBAR SUPPORT CONTROL W/O CLIMATE CONTROL, W/ FRONT PASSENGER SEAT LUMBAR SUPPORT CONTROL W/O DRIVER'S SEAT LEG SUPPORT CONTROL W/O MEMORY WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE

+B (DOME) 14 16 PBEW IG+ A/C CONTROL ASSEMBLY BGND BLK WIRE BLU WIRE BODY ECU BODY ECU (ATTACHED TO DRIVER SIDE J/B) BRN WIRE BSW BUZZER CIRCUIT COMBINATION METER COMPUTER DATA LINES SYSTEM DBKL DCTY DIA DOOR IND DRIVE IC DRIVER'S SEAT BELT IND DRIVER'S SEAT BELT IND DOOR IND +B DOME DRIVER'S SIDE DOOR COURTESY SWITCH DRIVER'S SIDE DOOR COURTESY SWITCH (LOWER LEFT "B" PILLAR) DRIVER'S SIDE FRONT SEAT INNER BELT DRIVER'S SIDE FRONT SEAT INNER BELT (UNDER DRIVER'S SEAT) ECU B+ ECU- IG 1 FUSE ECU-ACC FUSE ECU-B FUSE ENGINE ROOM R/B ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) FRONT PASSENGER'S SEAT BELT WARNING FRONT PASSENGER'S SIDE FRONT SEAT INNER BELT FRONT PASSENGER'S SIDE FRONT SEAT INNER BELT (UNDER FRONT PASSENGER'S SEAT) GAUGE 2 FUSE GRN WIRE GRY WIRE GUAGE 2 FUSE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START HTR FUSE INSTRUMENT PANEL J/B INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) LEFT "C" PILLAR) LT GRN WIRE MICRO COMPUTER OCCUPANT CLASSIFICATION ECU OCCUPANT CLASSIFICATION ECU (FRONT PASSENGER'S SEAT) ORG/ WIRE PBEW PNK WIRE POWER POWER SUPPLY CIRCUIT RED WIRE SKID CONTROL ECU W/ ACTUATOR SKID CONTROL ECU W/ ACTUATOR (RIGHT SIDE OF ENGINE COMPT) SUPPLY UNLOCK WARNING SWITCH UNLOCK WARNING SWITCH (W/O SMART KEY SYSTEM) (LOWER LEFT SIDE OF DASH) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 +B DIA GND FSR- BGND BGND BLK WIRE BLU WIRE BRN WIRE BSW COMBINATION METER COMPUTER DATA LINES SYSTEM DIA DRIVER IC ECU B+ ENGINE ROOM J/B FRONT PASSENGER'S SIDE FRONT SEAT INNER BELT GAUGE 2 FUSE GRN WIRE GRY WIRE HOT IN ON OR START HOT IN ON OR START ENGINE ROOM J/B GAUGE 2 FUSE (LEFT SIDE OF ENGINE COMPT) IG FSR+ BSW IGN FUSE IND IND SRS INSTRUMENT PANEL J/B INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) JUNCTION LEFT FRONT AIR BAG SENSOR LEFT FRONT OCCUPANT CLASSIFICATION SENSOR LEFT PRETENSIONER LEFT PRETENSIONER (LOWER LEFT "B" PILLAR) LEFT REAR OCCUPANT CLASSIFICATION SENSOR LT GRN WIRE MICRO COMPUTER MPX OCCUPANT CLASSIFICATION ECU OCCUPANT CLASSIFICATION ECU (FRONT PASSENGER'S SEAT) PNK WIRE POWER SUPPLY CIRCUIT RED WIRE RIGHT FRONT AIR BAG SENSOR RIGHT FRONT OCCUPANT CLASSIFICATION SENSOR RIGHT REAR OCCUPANT CLASSIFICATION SENSOR SL- SR- SRS VIO WIRE W/O CLIMATE CONTROL SEATS WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE