Toyota Sienna I (1997-2003) engine control module (behind right side of dash) Wiring diagrams

1 8 15 9 16 BATT MREL STP ODLP B+ 11 12 SPEEDOMETER 12 11 3 +B TC 2 13 14 17 18 23 VC THO THW 2 SL 5 20 22 24 25 TC NSW SPD ABS ACTUATOR, ECU (LEFT REAR OF ENG COMPT) BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/WHT WIRE BRN WIRE CIG FUSE COMBINATION METER CRUISE CONTROL ECU (BEHIND UPPER LEFT CENTER OF DASH) 14 13 6 DATA LINK CONNECTOR 1 (RIGHT REAR OF ENGINE COMPT) DIODE (W/ DOOR LOCK CTRL) DRIVER SIDE J/B 1 EA (FRONT SIDE OF RIGHT FENDER APRON) EFI FUSE EFI RELAY ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE CONTROLS (COMBINATION METER) ENGINE COOLANT TEMPERATURE SENSOR (RIGHT FRONT SIDE OF ENG) ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IDLO IJ (RIGHT SIDE OF DASH) J/B 3 (BEHIND COMBINATION METER) J/C 12 (BEHIND LOWER RIGHT SIDE OF DASH) J/C 13 (BEHIND RIGHT SIDE OF DASH) J/C 14 (BEHIND RIGHT SIDE OF DASH) J/C 18 (UNDERSIDE OF STEERING COLUMN) J/C 2 (BEHIND LEFT SIDE OF COMBINATION METER) J/C 6 (BEHIND TOP CENTER OF DASH) J/C 7 (TOP CENTER OF DASH) LT GRN WIRE LT GRN/BLK WIRE NL DL 10 3 4 2 O/D MAIN SWITCH ODMS ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (ON TRANSAXLE) PL RL PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PWR "2" INDIC "D" INDIC "N" INDIC "L" INDIC "R" INDIC O/D OFF "P" INDIC RED WIRE RED/BLK WIRE RED/BLU WIRE SLN- SLN- SLN+ SPO- STARTER FUSE STARTING/ CHARGING STOP FUSE STOP- LIGHT SWITCH (ABOVE BRAKE PEDAL) THO THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) VIO/YEL WIRE VSC ECU (BEHIND UPPER LEFT END OF DASH) WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/GRN WIRE

BATTERY BATTERY GROUND BLK WIRE BLU WIRE DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) FUSE FUSIBLE LINK BLOCK (LEFT SIDE OF ENGINE COMPT) GRY WIRE IGNITION SWITCH J/C 6 (BEHIND TOP CENTER OF DASH) J/C 7 (BEHIND TOP CENTER OF DASH) MAIN FUSE 1 MAIN FUSIBLE LINK (12 GA- NCA WIRE OFF PARK/NEUTRAL POSITION SWITCH (ON FRONT OF TRANSAXLE) P/ RED WIRE STARTER STARTER RELAY WHT WIRE

+SR P+ P- SIL D- D+ +SL 1 2 3 4 5 6 7 8 9 10 11 12 PL- PL+ 1 2 3 4 5 6 7 8 9 10 11 12 SFR- SFR+ BLK WIRE BLK/ORG WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE CENTER AIR BAG SENSOR ASSEMBLY (BELOW CENTER OF DASH) CIG FUSE COMBINATION METER CONNECTION DETECTION PIN DATA LINK CONNECTOR (DLC) 1 (PARTIAL) (ON RIGHT REAR OF ENGINE COMPARTMENT) DATA LINK CONNECTOR (DLC) 3 (PARTIAL) (BELOW DASH, RIGHT OF STEERING COLUMN) DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) ECU-B FUSE ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B 2 (ON LEFT SIDE OF ENGINE COMPARTMENT) ESL SSL+ LBE+ SSL- FPS GRN WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START IGN FUSE J/C 2 J/C 2, 3 (BEHIND LEFT SIDE OF COMBINATION METER) J/C 21 (BEHIND LEFT REAR WHEELWELL) J/C 23 (FORWARD OF RIGHT REAR FENDERWELL) J/C 3 J/C 6 (BEHIND TOP CENTER OF DASH) J/C 8 (BEHIND TOP CENTER OF DASH) LEFT BUCKLE SWITCH (INSIDE OF LEFT FRONT SEAT BELT BUCKLE ASSEMBLY) LEFT FRONT AIR BAG SENSOR (BEHIND LEFT HEADLIGHT) LEFT PRETENSIONER LEFT SIDE AIR BAG SENSOR (IN LOWER AREA OF LEFT SLIDING DOOR) LEFT SIDE AIR BAG SQUIB LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PNK 1 2 3 4 WIRE PNK VUPR WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PR+ PR- SSR- RBE+ SSR+ ESR RED WIRE RED/WHT WIRE RIGHT BUCKLE SWITCH RIGHT END OF DASH) RIGHT FRONT AIR BAG SENSOR (BEHIND RIGHT HEADLIGHT) RIGHT PRETENSIONER (AT BASE OF RIGHT "B" PILLAR) RIGHT SIDE AIR BAG SENSOR (IN LOWER AREA OF RIGHT SLIDING DOOR) RIGHT SIDE AIR BAG SQUIB SEAT BELT OCCUPANT DETECTION SENSOR SFL+ SFL- VUPL SL- SPIRAL CABLE SRS WARNING LIGHT TC -SR WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

12 (DASH HARN, BEHIND LEFT SIDE OF DASH) 12 13 14 15 16 17 ODMS 12 13 14 15 16 F/PS TRC+ ENG+ STP B+ PTNK 2 SL A/C SYSTEM A/C SYSTEM A/C SYSTEM ANTI-LOCK BRAKES SYSTEM ANTI-THEFT SYSTEM BATT IGSW FC SIL 2 3 4 5 6 7 8 9 10 BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BRN RED (OR BRN/BLK) WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COOLING FANS SYSTEM CRUISE CONTROL SYSTEM DATA LINK CONNECTOR 1 (RIGHT REAR OF ENGINE COMPT) DATA LINK CONNECTOR 3 (BELOW DASH RIGHT OF STEERING COLUMN) DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) STOP FUSE ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) EOM 2 3 4 5 6 7 8 9 10 FUSE GRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT W/DEFOGGER RELAY ENERGIZED HOT W/TAILLIGHT RELAY ENERGIZED IDLO CF TACH CODE J/B 3 (BEHIND INSTRUMENT CLUSTER) J/C 14 (BEHIND RIGHT SIDE OF DASH) J/C 2 J/C 2, 3 (BEHIND LEFT SIDE, TOP OF DASH) J/C 3 J/C 3 (BEHIND LEFT SIDE, TOP OF DASH) J/C 6 (BEHIND TOP CENTER OF DASH) LT GRN/BLK WIRE LT GRN/RED WIRE MIRROR HEATER NEO OBD FUSE ORG/ WIRE PNK/BLK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE SIL SPD KSW STA MREL ODLP CCV STOPLIGHT SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) SUPPLEMENTAL RESTRAINTS SYSTEM TAIL FUSE THWO TPC ELS TC ACMG A/C OXS HTS TRANSPONDER KEY AMPLIFIER (BEHIND LEFT SIDE OF DASH) TRC- ENG- IMLD TXCT RXCK NSW UNLOCK WARNING SWITCH VIO WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE