Toyota Corolla XI (2012-2016) main body ecu (left end of dash) Wiring diagrams

12 13 14 15 PKB FFGO TRLY HRLY 17 18 19 20 SH DBKL 21 22 BZR DIM 5 6 7 8 9 10 11 LSR TR+ ACT- ACT+ ACTD BLK WIRE BLU WIRE CANL CANH DOMR RDA KSW LSFR FRCY CLTB CLTS CLTE DOME CUT RELAY DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM HEADLIGHTS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS DRIVER'S SIDE JUNCTION BLOCK ASSEMBLY (LEFT END OF DASH) DRL EA (LEFT KICK PANEL) EB (CENTER OF DASH) INSTRUMENT CLUSTER, HEADLIGHTS SYSTEMS ECU- IG 1 FUSE ECU-B FUSE ENGINE ROOM RELAY BLOCK (LEFT SIDE OF ENGINE COMPT) EXTERIOR LIGHTS, INTERIOR LIGHTS SYSTEMS FUSE GRN WIRE GRY WIRE HEAD TAIL HEADLIGHTS SYSTEM HORN HORNS SYSTEM HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED INTERIOR LIGHTS SYSTEM NAVIGATION, SOUND SYSTEMS INTERIOR LIGHTS SYSTEM, POWER WINDOWS SYSTEM LGCY LGYL 3 4 BCYL BCTL LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) PNK WIRE POWER TOPS SYSTEM POWER WINDOWS SYSTEM PRG HU RCTY LSFL HF RED WIRE SUPPLEMENTAL RESTRAINTS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE W/ THEFT DETERRENT W/O THEFT DETERRENT WHT WIRE WHT/BLK WIRE YEL WIRE

5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 HCTY 6 14 CANH CANL A/C AMPLIFIER ASSEMBLY (CENTER OF DASH) AIR BAG SENSOR ASSEMBLY (FRONT OF CENTER CONSOLE) ANTI-THEFT SYSTEM AUTOMATIC A/C BLK WIRE BLU WIRE BLU/ WHT WIRE CAN JUNCTION CONNECTOR 3 (CENTER OF DASH) CERTIFICATION ECU (W/ SMART KEY SYSTEM) (RIGHT SIDE OF DASH) COMBINATION METER ASSEMBLY DATA LINK CONNECTOR 3 (LEFT SIDE OF DASH) DUMY GRN WIRE GRY WIRE IND DUMY PNK WIRE LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) MANUAL A/C PNK DUMY WIRE PNK WIRE POWER STEERING ECU ASSEMBLY (BEHIND INSTRUMENT CLUSTER) RED WIRE STEERING SENSOR (W/ VSC) (STEERING COLUMN ASSEMBLY) VIO WIRE W/ RADIO, DISPLAY RECEIVER TYPE WHT WIRE YEL WIRE

BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER'S SIDE JUNCTION DRIVER'S SIDE JUNCTION BLOCK ASSEMBLY (LEFT END OF DASH) EB (CENTER OF DASH) ECM (LEFT SIDE OF ENGINE COMPT) ECU-B 2 FUSE ED (RIGHT SIDE OF DASH) EFII ENGINE ROOM RELAY BLOCK (LEFT SIDE OF ENGINE COMPT) HOT AT ALL TIMES HOT W/ IGN FUSE BLOCK ASSEMBLY (LEFT END OF DASH) IMI IMO IND LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) PNK EFIO WIRE PNK WIRE RED WIRE SECURITY INDICATOR SWITCH (STEERING COLUMN) TELLTALE LIGHT ASSEMBLY TRANSPONDER KEY COIL TRANSPONDER KEY ECU ASSEMBLY (CENTER OF DASH) UN-LOCK WARNING VIO WIRE WHT WIRE WHT/BLK WIRE

6 8 ILL- DIM ALT FUSE (LEFT SIDE OF ENGINE COMPT) AUTO DRL LIGHT CONTROL DRL OFF OFF SWITCH BLK WIRE COMPUTER DATA LINES SYSTEM DRIVER'S SIDE JUNCTION BLOCK ASSEMBLY (LEFT END OF DASH) EA (LEFT KICK PANEL) EB (CENTER OF DASH) ENGINE ROOM JUNCTION BLOCK FUSE GRN WIRE HEAD TAIL HEADLIGHT DIMMER SWITCH ASSEMBLY HEATER CONTROL SUB-ASSEMBLY 3 (MANUAL A/C) HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED LEFT STEERING SWITCH LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) METER FUSE MSW PANEL FUSE PATTERN SELECT SWITCH ASSEMBLY (IF EQUIPPED) PNK WIRE RED WIRE RELAY ENERGIZED RIGHT STEERING SWITCH SHIFT POSITION IND TRANSMISSION FLOOR SHIFT ASSEMBLY (A/T, CVT) SPIRAL CABLE SUB-ASSEMBLY (STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY TAIL TAIL RELAY TELLTALE LIGHT ASSEMBLY WHT WIRE WHT/BLK WIRE

11 12 LBE+ LBE- 12 13 FSR + FSR - A/B FUSE AIR BAG SENSOR ASSEMBLY (FRONT OF CENTER CONSOLE) ASSEMBLY (W/O OCCUPANT DETECTION ECU) AUTO DRL DRL OFF OFF BGND BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BSW BUCKLE SWITCH BUZZER CAN CONTROLLER CAN I/F CANADA USA W/ AUTOMATIC LIGHT CONTROL COMBINATION METER ASSEMBLY COMPT) COMPUTER DATA LINES SYSTEM DBKL DOOR IND (W/O TFT DISPLAY) DRIVER'S SIDE J/B ASSEMBLY (LEFT END OF DASH) EA (LEFT KICK PANEL) EB (CENTER OF DASH) ECU- IG 1 FUSE ECU-B 2 FUSE ECU-B FUSE ED (RIGHT SIDE OF DASH) ENGINE ROOM R/B (LEFT SIDE OF ENGINE FUSE GRN WIRE GRY WIRE HEAD TAIL HEADLIGHT DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HOT W/ LC (RIGHT "C" PILLAR) LED DRIVER LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (LEFT "B" PILLAR) LEFT FRONT SEAT INNER BELT ASSEMBLY (W/ OCCUPANT DETECTION ECU) LEFT FRONT SEAT INNER BELT ASSEMBLY (W/O OCCUPANT DETECTION ECU) LIGHT CONTROL LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) METER FUSE OCCUPANT DETECTION ECU (UNDER FRONT PASSENGER'S SEAT) PARKING BRAKE SWITCH (BASE OF LEVER ASSEMBLY) PNK IG WIRE PNK WIRE RBE+ RED WIRE RELAY ENERGIZED RIGHT FRONT SEAT INNER BELT RIGHT FRONT SEAT INNER BELT ASSEMBLY (W/ OCCUPANT DETECTION ECU) SEAT BELT IND SWITCH TAIL UNLOCK WARNING SWITCH (W/O SMART KEY SYSTEM) (STEERING COLUMN) VIO WIRE W/O AUTOMATIC LIGHT CONTROL TMMMS MADE TMMC MADE WHT WIRE WHT/BLK WIRE

1 2 3 4 5 6 IG 10 11 12 +5 15 14 CANL CANH PNK WIRE 3 4 5 6 CLSW RDA PRG CSEL 5 17 6 RCO RDAM CSEL BLK WIRE BLU WIRE BRN WIRE BUZZER CAN CONTROLLER CAN I/F CERTIFICATION ECU (W/ SMART KEY SYSTEM) (RIGHT SIDE OF DASH) COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DATA DRIVER'S SIDE J/B ASSEMBLY (LEFT END OF DASH) EB (CENTER OF DASH) ECU-B 2 FUSE ECU-B FUSE ECU-IG 3 FUSE ED (RIGHT SIDE OF DASH) ENGINE ROOM R/B (LEFT SIDE FUSE GRN WIRE HOT AT ALL TIMES HOT W/ HOT W/ ACC RELAY ENERGIZED IG+ PNK WIRE LC (RIGHT "C" PILLAR) LED DRIVER LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) METER FUSE OF ENGINE COMPT) PNK WIRE RED WIRE RELAY ENERGIZED TIRE PRESSURE IND TIRE PRESSURE WARNING RESET SWITCH VIO WIRE W/ SMART KEY SYSTEM W/O SMART KEY SYSTEM, W/ WIRELESS DOOR LOCK CONTROL W/O SMART KEY SYSTEM, WIRELESS DOOR LOCK CONTROL WHT WIRE WHT/BLK WIRE YEL WIRE