Toyota Sienna I (1997-2003) (near left front suspension support) Wiring diagrams

1 8 9 10 11 12 17 18 19 GND MHC MHH IG+ 3 2 4 1 VMC BLWC 4 5 6 7 8 9 14 15 16 18 RRHI RRME RRLO RBAT RRAT RRON VMH BLWH HRH RG A/C CONTROL ASSEMBLY AUTO BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLOWER MOTOR (REAR COOLING) (ON REAR COOLING UNIT) BLOWER MOTOR (REAR HEATER) (ON REAR HEATER UNIT) BLOWER RESISTOR TRANSISTOR (COOLER) (RIGHT REAR CORNER OF VEHICLE) BLOWER RESISTOR TRANSISTOR (HEATER) (UNDER RIGHT MIDDLE SEAT) BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) HEATER FUSE DRIVER SIDE R/B 5 (BEHIND DASH, LEFT OF STEERING COLUMN) ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPARTMENT) DOME FUSE FRONT BLOWER MOTOR SWITCH FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPT) GRN WIRE GRN/ORG WIRE GRN/YEL WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT IN ON OR START HRC BLWC VMC J/B 3 (BEHIND COMBINATION METER) J/C 17 (UPPER RIGHT SIDE OF DASH) J/C 18 (UNDERSIDE OF STEERING COLUMN) J/C 23 (FOWARD OF RIGHT REAR FENDERWELL) J/C 3 (LEFT SIDE OF CONBINATION METER) J/C 6 (BEHIND TOP CENTER OF DASH) J/C 8 (BEHIND TOP CENTER OF DASH) LT GRN WIRE PNK 3 2 1 BMC BLWR GND WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE R/B 7 (LEFT FRONT OF ENGINE COMPARTMENT) REAR CLR FUSE R/B 8 (RIGHT REAR OF ENGINE COMPT) REAR CLR RELAY RA/C REAR A/C SWITCH REAR HEATER INTAKE AIR TEMPERATURE SENSOR (UNDER RIGHT MIDDLE SEAT) REAR HEATER RELAY RED WIRE RED/BLU WIRE RED/WHT WIRE RHI RLO RMI RR A/C FUSE SERVO MOTOR (UNDER CENTER OF MIDDLE SEAT) TINH TPH TSET TSET VIO WIRE VIO/RED WIRE WHT WIRE WHT/BLK WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 GND A/C CONTROL ASSEMBLY ACON PSW AIF AIR MC MH MHC MHH IG+ AIR INLET CONTROL SERVO MOTOR (BEHIND UPPER RIGHT SIDE OF DASH) AIR VENT MODE CONTROL SERVO MOTOR (BEHIND CENTER OF DASH) ALT FUSE AUTO BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLOWER MOTOR (BEHIND RIGHT SIDE OF DASH) BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/YEL WIRE DEFOGGER SYSTEM DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) FACE FRONT BLOWER MOTOR CONTROLLER (BEHIND RIGHT SIDE OF DASH) FRONT BLOWER MOTOR SWITCH FRONT HEATER RELAY FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPT) GND SI +B VM 2 3 4 GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START HR BLW RRHI RRME RRLO RBAT RRAT RRON B/L FOOT FDEF DEF VMH BLWH HRH HTR FUSE INSTRUMENT CLUSTER SYSTEM J/B 3 (BEHIND COMBINATION METER) J/C 17 (UPPER RIGHT SIDE OF DASH) J/C 8 (BEHIND TOP CENTER OF DASH) JUNCTION CONNECTOR (LEFT SIDE OF CONBINATION METER) LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MFRS MRS ORG/ WIRE PASSENGER SIDE R/B 4 (AT RIGHT KICK PANEL) PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE REAR A/C CIRCUIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE TACO SPD LOCK TW HRC BLWC VMC TAM TR TE TS TPD TPI TR TINH TPH TSET TPI VIO WIRE VIO/GRN WIRE VIO/RED WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 GND A/C CONTROL ASSEMBLY ACON PSW AIF AIR MC MH MHC MHH IG+ AIR INLET CONTROL SERVO MOTOR (BEHIND UPPER RIGHT SIDE OF DASH) AIR VENT MODE CONTROL SERVO MOTOR (BEHIND CENTER OF DASH) ALT FUSE AUTO BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLOWER MOTOR (BEHIND RIGHT SIDE OF DASH) BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/YEL WIRE DEFOGGER SYSTEM DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) FACE FRONT BLOWER MOTOR CONTROLLER (BEHIND RIGHT SIDE OF DASH) FRONT BLOWER MOTOR SWITCH FRONT HEATER RELAY FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPT) GND SI +B VM 2 3 4 GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START HR BLW RRHI RRME RRLO RBAT RRAT RRON B/L FOOT FDEF DEF VMH BLWH HRH HTR FUSE INSTRUMENT CLUSTER SYSTEM J/B 3 (BEHIND COMBINATION METER) J/C 17 (UPPER RIGHT SIDE OF DASH) J/C 8 (BEHIND TOP CENTER OF DASH) JUNCTION CONNECTOR (LEFT SIDE OF CONBINATION METER) LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MFRS MRS ORG/ WIRE PASSENGER SIDE R/B 4 (AT RIGHT KICK PANEL) PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE REAR A/C CIRCUIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE TACO SPD LOCK TW HRC BLWC VMC TAM TR TE TS TPD TPI TR TINH TPH TSET TPI VIO WIRE VIO/GRN WIRE VIO/RED WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

A/C CONTROL ASSEMBLY (AUTO A/C) BLK WIRE BLU WIRE DEF FUSE DEFOGGER RELAY DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) GRN WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START J/B 3 (BEHIND INSTRUMENT CLUSTER) J/C 22 (ON RIGHT REAR CORNER OF VEHICLE) LEFT MIRROR HEATER (PART OF LEFT REMOTE CONTROL MIRROR) MIRROR-HEATER FUSE REAR WINDOW DEFOGGER REAR WINDOW DEFOGGER SWITCH (MANUAL A/C) RED WIRE RIGHT MIRROR HEATER (PART OF RIGHT REMOTE CONTROL MIRROR) SOLID STATE WHT WIRE WHT/BLK WIRE YEL WIRE

.33 OHMS 10.1 OHMS 3.21 OHMS A/C AMPLIFIER (BEHIND RIGHT SIDE OF DASH, ABOVE KICK PANEL) A/C FUSE A/C SWITCH A/C SWITCH OFF ON ACT F-A/C F-TE LED FAN MGC AMP BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLOWER MOTOR (BEHIND RIGHT SIDE OF DASH) BLOWER RESISTOR (BEHIND RIGHT SIDE OF DASH) BLOWER SWITCH BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE COOL DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) DRIVER SIDE R/B 5 (BEHIND LEFT SIDE OF STEERING COLUMN) ENGINE ROOM J/B 2 (ON LEFT SIDE OF ENGINE COMPARTMENT) FRONT A/C CIRCUIT FRONT HEATER RELAY FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPARTMENT) HTR FUSE GRN WIRE HEATER FUSE HOT HOT AT ALL TIMES HOT IN ON OR START J/C 3 (BEHIND COMBINATION METER) J/C 8 (BEHIND TOP CENTER OF DASH) JUNCTION CONNECTOR (BEHIND LEFT SIDE OF COMBINATION METER) LOCK LT GRN/BLK WIRE MHOT MODE SWITCH OFF LO OFF ON PASSENGER SIDE R/B 4 (AT RIGHT KICK PANEL) PRS IG IGN R-HVR MCOOL RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RR A/C FUSE SERVO MOTOR (UNDER PASSENGER'S SEAT) VOLUME SWITCH WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

0.22 OHMS 0.46 OHMS 0.86 OHMS 1.0 OHMS 1.68 OHMS 2.14 OHMS BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE DRIVER SIDE R/B 5 (BEHIND LEFT SIDE OF DASH) FRONT HEATER BLOWER SWITCH GRN WIRE GRY WIRE GRY/RED WIRE J/C 3 (BEHIND LEFT SIDE OF COMBINATION METER) LT GRN WIRE OFF OFF LO OFF REAR ORG/ WIRE PASSENGER SIDE R/B 3 (RIGHT REAR QUARTER PANEL) REAR COOLING BLOWER MOTOR (ON REAR COOLING UNIT) REAR COOLING BLOWER RESISTOR (ON REAR COOLING UNIT) REAR HEATER BLOWER MOTOR (ON REAR HEATER UNIT) REAR HEATER BLOWER RESISTOR (ON REAR HEATER UNIT) REAR HEATER BLOWER SWITCH REAR HEATER RELAY REAR HI RELAY (ON RIGHT REAR OF VEHICLE) REAR LO REAR LO RELAY REAR RELAY RED WIRE RED/BLU WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL/BLK WIRE

0.33 OHMS 10.1 OHMS 3.21 OHMS 9 2 27 26 ACT A/C TACH CF A/C AMPLIFIER (BEHIND RIGHT SIDE OF DASH, ABOVE KICK PANEL) A/C FUSE A/C MAGNETIC CLUTCH, LOCK SENSOR (ON LEFT FRONT OF ENG) A/C SWITCH A/C THERMISTOR (BEHIND LOWER RIGHT SIDE OF DASH) ACT F-A/C F-TE LED FAN MGC AIR INLET CONTROL SERVO MOTOR (BEHIND UPPER RIGHT SIDE OF DASH) AIR INLET CONTROL SWITCH (REAR WINDOW DEFOGGER SWITCH) ALT FUSE BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLOWER MOTOR (BEHIND RIGHT SIDE OF DASH) BLOWER RESISTOR (BEHIND RIGHT SIDE OF DASH) BLOWER SWITCH BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) DRIVER SIDE R/B 5 (BEHIND LEFT SIDE OF DASH) DUAL ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) FRONT HEATER RELAY FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPARTMENT) HTR FUSE GRN WIRE GRN/WHT WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START J/B 3 (BEHIND COMBINATION METER) J/C 17 (TOP RIGHT SIDE OF DASH) J/C 7 (BEHIND TOP CENTER OF DASH) J/C 8 (BEHIND TOP CENTER OF DASH) JUNCTION CONNECTOR (BEHIND LEFT SIDE OF COMBINATION METER) LOCK LT GRN/BLK WIRE MODE SWITCH OFF LO ON OFF PASSENGER SIDE R/B 4 (AT RIGHT KICK PANEL) PRS IG IGN GND RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SINGLE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE

0.33 OHMS 10.1 OHMS 3.21 OHMS 9 2 27 26 ACT A/C TACH CF A/C AMPLIFIER (BEHIND RIGHT SIDE OF DASH, ABOVE KICK PANEL) A/C FUSE A/C MAGNETIC CLUTCH, LOCK SENSOR (ON LEFT FRONT OF ENGINE) A/C SWITCH A/C THERMISTOR (BEHIND LOWER RIGHT SIDE OF DASH) ACT F-A/C F-TE LED FAN MGC AIR INLET CONTROL SERVO MOTOR (BEHIND UPPER RIGHT SIDE OF DASH) AIR INLET CONTROL SWITCH (REAR WINDOW DEFOGGER SWITCH) ALT FUSE BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLOWER MOTOR (BEHIND RIGHT SIDE OF DASH) BLOWER RESISTOR (BEHIND RIGHT SIDE OF DASH) BLOWER SWITCH BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) DRIVER SIDE R/B 5 (BEHIND LEFT SIDE OF DASH) DUAL ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) FRONT HEATER RELAY FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPARTMENT) HTR FUSE GRN WIRE GRN/WHT WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START J/B 3 (BEHIND COMBINATION METER) J/C 17 (TOP RIGHT SIDE OF DASH) J/C 7 (BEHIND TOP CENTER OF DASH) J/C 8 (BEHIND TOP CENTER OF DASH) JUNCTION CONNECTOR (LEFT SIDE OF COMBINATION METER) LOCK LT GRN/BLK WIRE MODE SWITCH OFF LO ON OFF PASSENGER SIDE R/B 4 (AT RIGHT KICK PANEL) PNK WIRE PRS IG IGN GND RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SINGLE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE

15 14 8 9 10 LSWP LSWD BACK DOOR KEY LOCK, UNLOCK SWITCH BACK DOOR LOCK MOTOR BLK WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/RED WIRE BZR DCTY DOME FUSE DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) DOOR FUSE ENGINE ROOM J/B 2 (ON LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START INTEGRATION RELAY J/B 3 J/B 3 (BEHIND INSTRUMENT CLUSTER) J/C 15, J/C 16 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 18 (ON UNDERSIDE OF STEERING COLUMN) J/C 22 J/C 3 (BEHIND UPPER LEFT SIDE OF DASH) J/C 4 (BEHIND UPPER LEFT SIDE OF DASH) J/C 5 J/C 5 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 6 (BEHIND TOP CENTER OF DASH) KEYLESS BUZZER LEFT FRONT DOOR KEY LOCK/ UNLOCK SWITCH LEFT FRONT DOOR LOCK CONTROL SWITCH (POWER WINDOW MASTER SWITCH) LEFT FRONT DOOR LOCK MOTOR, UNLOCK DETECTION SWITCH LEFT SLIDE DOOR JUNCTION CONNECTOR (AT BASE OF LEFT "B" PILLAR) LOCK LOCK MOTOR LSWD LSWP LT GRN WIRE PCTY RED WIRE RED/GRN WIRE RED/WHT WIRE RIGHT FRONT DOOR COURTESY SWITCH LEFT FRONT DOOR COURTESY SWITCH RIGHT FRONT DOOR KEY LOCK/ UNLOCK SWITCH RIGHT FRONT DOOR LOCK CONTROL SWITCH RIGHT FRONT DOOR LOCK MOTOR, UNLOCK DETECTION SWITCH RIGHT SLIDE DOOR JUNCTION CONNECTOR (AT BASE OF RIGHT "B" PILLAR) UNLK UNLOCK WARNING SWITCH W/ POWER DOOR W/O POWER DOOR WHT WIRE WHT/BLK WIRE WHT/RED WIRE WIRELESS DOOR LOCK ECU (BEHIND CENTER OF DASH) YEL WIRE YEL/BLK WIRE

BACK DOOR KEY LOCK, UNLOCK SWITCH BACK DOOR LOCK MOTOR BLK WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/RED WIRE DCTY DOME FUSE DOOR FUSE DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) ENGINE ROOM J/B 2 (ON LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GRN WIRE HOT AT ALL TIMES HOT IN ON OR START INTEGRATION RELAY J/B 3 J/B 3 (BEHIND INSTRUMENT CLUSTER) J/C 15, J/C 16 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 22 J/C 3 (BEHIND UPPER LEFT SIDE OF DASH) J/C 4 (BEHIND UPPER LEFT SIDE OF DASH) J/C 5 J/C 5 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 6 (BEHIND TOP CENTER OF DASH) LEFT FRONT DOOR COURTESY SWITCH LEFT FRONT DOOR KEY LOCK/ UNLOCK SWITCH LEFT FRONT DOOR LOCK CONTROL SWITCH (POWER WINDOW MASTER SWITCH) LEFT FRONT DOOR LOCK MOTOR, UNLOCK DETECTION SWITCH LEFT SLIDE DOOR JUNCTION CONNECTOR (AT BASE OF LEFT "B" PILLAR) LOCK LOCK MOTOR LSWD LSWP LSWP LSWD LT GRN WIRE PCTY RED WIRE RED/GRN WIRE RED/WHT WIRE RIGHT FRONT DOOR COURTESY SWITCH RIGHT FRONT DOOR KEY LOCK/ UNLOCK SWITCH RIGHT FRONT DOOR LOCK CONTROL SWITCH RIGHT FRONT DOOR LOCK MOTOR, UNLOCK DETECTION SWITCH RIGHT SLIDE DOOR JUNCTION CONNECTOR (AT BASE OF RIGHT "B" PILLAR) UNLK UNLOCK WARNING SWITCH W/ POWER DOOR W/O POWER DOOR WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE