Toyota Sienna I (1997-2003) rear heater relay 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

A/F HEATER RELAY ABS ACTUATOR, ECU ABS SOL RELAY BACK-UP LIGHT RELAY BLOWER MOTOR CONTROLLER BLOWER RESISTOR BLOWER SWITCH BRAKE FLUID LEVEL SWITCH WIRELESS DOOR LOCK ECU BRN WIRE CENTER AIR BAG SENSOR ASSEMBLY CLOCK COMBINATION METER A/C AMPLIFIER CRUISE CONTROL ECU CRUISE CONTROL ACTUATOR CRUISE CONTROL SWITCH LEFT FOGLIGHT DATA LINK CONNECTOR 3 DRIVER SIDE J/B 1 (BEHIND DASH, LEFT OF STEERING COLUMN) DRIVER SIDE R/B 5 FRONT HEATER BLOWER SWITCH FRONT HEATER RELAY FRONT WIPER MOTOR VSC ACTUATOR GARAGE DOOR OPENER MOON ROOF MOTOR, LIMIT SWITCH INTEGRATION RELAY J/B 3 (BEHIND INSTRUMENT CLUSTER) J/C 7 (BEHIND TOP CENTER OF DASH) KEYLESS BUZZER LEFT FRONT POWER SLIDE DOOR CONTROL SWITCH LEFT FRONT TURN SIGNAL LIGHT, PARKING LIGHT LEFT VANITY LIGHT INNER MIRROR LIGHT CONTROL, DIMMER SWITCHES TRANSPONDER KEY AMPLIFIER MOON ROOF CONTROL SWITCH, RELAY NOISE FILTER O/D MAIN SWITCH PERSONAL LIGHT INTERIOR LIGHT 1 POWER QUARTER WINDOW SWITCH POWER RELAY REAR HEATER RELAY REAR WINDOW DEFOGGER SWITCH RIGHT FRONT POWER SLIDE DOOR CONTROL SWITCH RIGHT VANITY LIGHT STARTER RELAY TIRE PRESSURE WARNING STANARDIZATION SWITCH TO STEERING SENSOR (DIAGRAM 3 OF 3) TURN SIGNAL FLASHER MAIN RELAY UNLOCK WARNING SWITCH W/ MOON- ROOF W/O MOON- ROOF WHT/BLK WIRE WIPER/ WASHER SWITCH

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

A/C AMPLIFIER, A/C SWITCH A/C CONDENSER FAN MOTOR RADIATOR FAN MOTOR FAN 3 RELAY A/C FUSE A/F HEATER RELAY A/F HTR FUSE ALT FUSE ALT-S FUSE FUSE BATTERY BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLOWER MOTOR BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE CDS FUSE COMBINATION METER, LEFT SLIDE DOOR ECU ENGINE CONTROL MODULE DIM RELAY DOME FUSE ECU-B FUSE SHORT PIN DRIVER SIDE R/B 5 (BEHIND LEFT SIDE OF DASH) EFI FUSE HAZARD FUSE EFI RELAY ENGINE ROOM J/B 2 (ON LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 1 (LEFT SIDE OF ENG COMPT) FAN 1 RELAY FROM RADIO 1 FUSE (DIAGRAM 1 OF 3) FRONT HEATER RELAY FUSE (DIAGRAM 2 OF 3) FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPT) FUSIBLE LINK MAIN (12 GA- GENERATOR HORN SWITCH GRN/BLK WIRE GRN/WHT WIRE HAZARD SWITCH HEAD RELAY HEADLIGHTS HORN FUSE HORN RELAY HTR FUSE INP FUSE JUNCTION CONNECTOR 1 (NEAR LEFT HEADLIGHT) LEFT LOW BEAM HEAD- LIGHT RIGHT LOW BEAM HEAD- LIGHT MAIN FUSE MAIN RELAY 1 MAIN RELAY 2 PASSENGER SIDE R/B 4 (AT RIGHT KICK PANEL) R/B 7 (ON LEFT FRONT OF ENG COMPT) RADIO 1 FUSE RADIO, PLAYER, STEREO COMPONENT AMPLIFIER RDI FUSE REAR HEATER RELAY RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT HEAD FUSE LEFT HEAD FUSE RIGHT HEAD LOWER FUSE LEFT HEAD LOWER FUSE RR A/C FUSE S/HTR FUSE SEAT HEATER RELAY SHORT PIN SPLICE (DIAGRAM 2 OF 3) THEFT DETERRENT ECU HORNS TO ABS FUSE (DIAGRAM 3 OF 3) TO HAZARD FUSE (DIAGRAM 1 OF 2) TO IGNITION SWITCH (DIAGRAM 2 OF 3) VIO/WHT WIRE W/O TOW PACKAGE W/ TOW PACKAGE WHT WIRE WHT/RED WIRE YEL/GRN WIRE