Toyota Sienna I (1997-2003) j/c 8 (behind top center of dash) 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

A/C CONDENSER FAN MOTOR (ON RIGHT FRONT OF ENGINE COMPARTMENT) BLK WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE CDS FUSE DIODE (MAGNETIC CLUTCH) (RIGHT REAR OF ENG COMPT) ENGINE ROOM J/B 2 (ON LEFT SIDE OF ENGINE COMPARTMENT) ENGINE ROOM R/B 1 (ON LEFT SIDE OF ENGINE COMPARTMENT) FAN 1 RELAY FAN 2 RELAY FAN 3 RELAY GRN WIRE GRN/WHT WIRE J/C 14 (BEHIND RIGHT SIDE OF DASH) J/C 8 (BEHIND TOP CENTER OF DASH) MAIN 1 RELAY RADIATOR FAN MOTOR (ON LEFT FRONT OF ENGINE COMPARTMENT) RDI FUSE RED WIRE RED/BLU WIRE RED/WHT WIRE WATER TEMPERATURE SWITCH 1 (ON REAR OF ENGINE) WATER TEMPERATURE SWITCH 2 (ON LEFT REAR OF ENGINE) WHT WIRE WHT/BLK WIRE WHT/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 CONDENSER FAN MOTOR (ON RIGHT FRONT OF ENGINE COMPARTMENT) BLK WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE CDS FUSE ENGINE ROOM J/B 2 (ON LEFT SIDE OF ENGINE COMPARTMENT) ENGINE ROOM R/B 1 (ON LEFT SIDE OF ENGINE COMPARTMENT) FAN 1 RELAY FAN 2 RELAY FAN 3 RELAY GRN WIRE GRN/WHT WIRE J/C 14 (BEHIND RIGHT SIDE OF DASH) J/C 8 (BEHIND TOP CENTER OF DASH) MAGNETIC CLUTCH DIODE (RIGHT REAR OF ENG COMPT) MAIN 1 RELAY MAIN 2 RELAY PNK PNK WIRE PNK WIRE RADIATOR FAN MOTOR (ON LEFT FRONT OF ENGINE COMPARTMENT) RDI FUSE RED WIRE RED/BLU WIRE RED/WHT WIRE SHORT PIN WATER TEMPERATURE SWITCH 1 (ON RIGHT FRONT OF ENG COMPT) WATER TEMPERATURE SWITCH 2 (ON REAR OF ENGINE) WHT WIRE WHT/BLK WIRE WHT/RED WIRE

14 6 TC TS 26 46 42 TC D/G TS ABS ACTUATOR, ECU (LEFT REAR OF ENGINE COMPT) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BRN WIRE BRN/WHT WIRE CENTER AIR BAG SENSOR ASSEMBLY (BELOW CENTER OF DASH) CRUISE CONTROL ECU (BEHIND LEFT CENTER OF DASH) DATA LINK CONNECTOR 1 (RIGHT REAR CORNER OF ENGINE COMPT) DATA LINK CONNECTOR 3 (BELOW DASH RIGHT OF STEERING COLUMN) DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) EFI FUSE ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) EFI RELAY HOT AT ALL TIMES J/B 3 (BEHIND INSTRUMENT CLUSTER) J/C 14 (BEHIND RIGHT SIDE OF DASH) J/C 17 (W/ VSC) (UPPER RIGHT SIDE OF DASH) J/C 18 (W/ VSC) (ON UNDERSIDE OF STEERING COLUMN) J/C 2 (BEHIND INSTRUMENT CLUSTER) J/C 6 (BEHIND TOP CENTER OF DASH) J/C 8 (BEHIND TOP CENTER OF DASH) OBD FUSE PNK/BLK WIRE RED WIRE RED/YEL WIRE SIL TRANSLATE ECU (W/ VSC) (UPPER LEFT END OF DASH) VSC ECU (UPPER LEFT END OF DASH) W/ VSC W/O VSC WHT/BLK WIRE

A/C AMPLIFIER (BEHIND RIGHT SIDE OF DASH) A/C CONDENSER FAN MOTOR (RIGHT FRONT OF ENGINE COMPT) A/C SINGLE PRESSURE SWITCH (RIGHT FRONT OF ENGINE COMPT) ALT FUSE AUTO A/C BLK WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE CDS FUSE DRIVER SIDE J/B (BEHIND DASH, LEFT OF STEERING COLUMN) HEATER FUSE ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) FAN 1 RELAY FAN 2 RELAY FAN 3 RELAY FUSIBLE LINK BLOCK (LEFT SIDE OF ENGINE COMPT) GRN WIRE HOT AT ALL TIMES HOT IN ON OR START J/C 8 (BEHIND TOP CENTER OF DASH) MAGNETIC CLUTCH DIODE (RIGHT REAR OF ENGINE COMPT) MAIN 1 RELAY MAIN 2 RELAY MANUAL A/C PNK PNK WIRE PNK WIRE RADIATOR FAN MOTOR (LEFT FRONT OF ENGINE COMPT) RDI FUSE RED WIRE RED/WHT WIRE SHORT PIN WATER TEMPERATURE SWITCH 1 (REAR OF ENGINE) WATER TEMPERATURE SWITCH 2 (LEFT REAR OF ENGINE) WHT WIRE WHT/BLK WIRE WHT/RED 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

0.33 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