Toyota Prius II (2003-2005) combination switch Wiring diagrams

19 28 THW 30 31 CANL CANH A/C AUTO A/C CONDENSER FAN MOTOR (LEFT FRONT OF ENGINE COMPT) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CDS FAN FUSE PTC PTC CENTER CONNECTOR 2 (RIGHT I/P BRACE) COMBINATION SWITCH COMPRESSOR ASSEMBLY (MOTOR) (REAR OF ENGINE) COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (BEHIND LEFT END OF DASH) EA (RIGHT SIDE OF ENGINE COMPT) ECU-IG FUSE EE (LEFT REAR OF ENGINE COMPT) ENGINE CONTROL MODULE (BEHIND RIGHT END OF DASH) ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 2 (RIGHT SIDE OF RESERVE TANK) PS HTR RELAY FAN FAN 1 RELAY FAN 2 RELAY FAN 3 RELAY FR DEF FUSE FUSE GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT W/ IG ON INLET AIR INVERTER (LEFT REAR OF ENGINE COMPT) J/C 10 (BEHIND RIGHT SIDE OF DASH) J/C 2 J/C 4 (LEFT SIDE OF ENGINE COMPT) J/C 6 (BEHIND RIGHT END OF DASH) J/C 9 (BEHIND LEFT END OF DASH) LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK WIRE PRESSURE SWITCH (RIGHT SIDE OF ENGINE COMPT) PS HEATER PTC HEATER (BELOW RIGHT END OF DASH) PTC HTR 2 RELAY RADIATOR FAN MOTOR (BEHIND RADIATOR) RED WIRE RED/WHT WIRE RR DEF TAM TEMP VIO WIRE WATER TEMPERATURE SWITCH (RIGHT FRONT OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/WHT WIRE

BLK WIRE BLU WIRE BRN WIRE CENTER CONNECTOR 1 (BEHIND COMBINATION METER) CENTER CONNECTOR 2 (RIGHT I/P BRACE) COMBINATION SWITCH COMPUTER DATA LINES SYSTEM DC/DC FUSE DOME FUSE DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) ECU-IG FUSE ECUB ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B (LEFT SIDE FUSE GLOVE BOX LIGHT GND (ILL) GRN WIRE GRY WIRE HEAD OFF HOT AT ALL TIMES HOT IN RUN OR START HOT W/ ACC RELAY ENERGIZED IH (ABOVE LEFT KICK PANEL) II (BEHIND CENTER OF DASH) COMBINATION METER INSTRUMENT ILLUMINATION CIRCUIT INTERIOR LIGHT OFF J/C 24 (LEFT END OF DASH) J/C 6 (BEHIND RIGHT END OF DASH) KEY SLOT LIGHT CONTROL SWITCH OF ENGINE COMPT) ON DOOR PANEL FUSE PNK WIRE RED WIRE SIG T-LP RELAY TAIL TAIL FUSE BODY ECU TRLY WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 NEO GO 14 15 18 31 32 28 OCV- OVC+ VC 4 5 6 28 PNK M- M+ WIRE 4 6 7 12 13 MREL 6 3 2 BATT STP 7 8 9 19 13 14 15 16 17 21 23 24 25 30 31 IGSW CANH CANL SPDI CCS BLK WIRE BLU WIRE BRN WIRE CAMSHAFT TIMING OIL CONTROL VALVE (ON FRONT OF CYLINDER HEAD) CENTER CONNECTOR 1 (BEHIND LEFT SIDE OF DASH) CENTER CONNECTOR 2 (BEHIND RIGHT SIDE OF DASH) COMBINATION METER COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH CRUISE IND DOME FUSE DRIVER SIDE J/B (BEHIND LEFT END OF DASH) EC (AT REAR OF ENGINE) EE (LEFT REAR OF ENGINE COMPT) ENGINE CONTROL MODULE (BEHIND RIGHT END OF DASH) ENGINE CONTROLS SYSTEM (HYBRID SYSTEM CIRCUIT) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GRN WIRE GRY WIRE HEV FUSE HOT AT ALL TIMES HYBRID VEHICLE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) IGCT RELAY IGN FUSE IH (ABOVE LEFT KICK PANEL) J/C 12, 13 (BEHIND RIGHT SIDE OF DASH) J/C 14 (BEHIND RIGHT SIDE OF DASH) J/C 24 (BEHIND LEFT END OF DASH) J/C 3 (LEFT SIDE OF ENGINE COMPT) J/C 6 (BEHIND RIGHT END OF DASH) J/C 9 (BEHIND LEFT END OF DASH) LT BLU WIRE LT GRN WIRE NCA WIRE NEO GO ORG/ WIRE PNK COMPUTER DATA LINES SYSTEM TC CANL CANH IGSW WIRE PNK VTA WIRE PNK WIRE RED WIRE RELAY ENERGIZED SET- RES+ STOP FUSE STOPLIGHT SWITCH (ABOVE BRAKE PEDAL, ON BRACKET) THROTTLE CONTROL MOTOR (ON LEFT SIDE OF ENGINE) THROTTLE POSITION SENSOR (ON THROTTLE BODY) TRANSMISSION CONTROLS SYSTEM VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

A/C CONTROL ASSEMBLY BLK WIRE BO (RIGHT REAR OF VEHICLE) BRN WIRE CENTER CONNECTOR 2 (RIGHT I/P BRACE) COMBINATION SWITCH DEF FUSE DEF RELAY DRIVER SIDE J/B (LEFT END OF DASH) GAUGE FUSE GRN WIRE HOT AT ALL TIMES HOT W/ IGN ON IH (ABOVE LEFT KICK PANEL) J/C 26 (RIGHT REAR OF PASSENGER COMPT) J/C 27 (LEFT REAR OF PASSENGER COMPT) LEFT MIRROR HEATER M/HTR FUSE MIRROR HEATER RELAY (LEFT END OF DASH) REAR DEFOGGER SWITCH REAR WINDOW DEFOGGER REAR WINDOW DEFOGGER NOISE FILTER (ON LEFT "C" PILLAR) RED WIRE RIGHT MIRROR HEATER RRDEF SGST VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BODY ECU TRLY BRN WIRE CENTER CONNECTOR 1 (BEHIND COMBINATION METER) COMBINATION METER COMBINATION SWITCH DC/DC FUSE DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) EA (RIGHT SIDE OF ENGINE COMPT) EE (LEFT REAR OF ENGINE COMPT) EF (LEFT REAR OF ENGINE COMPT) EL ER EHW LR LL ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B (LEFT SIDE FLASHER RELAY GAUGE FUSE GRN WIRE GRY WIRE HAZ FUSE HAZARD SWITCH HEAD OFF HOT AT ALL TIMES HOT IN RUN OR START IH (ABOVE LEFT KICK PANEL) J/C 11 (BEHIND LEFT END OF DASH) J/C 2 (LEFT SIDE OF ENGINE COMPT) J/C 4 (LEFT SIDE OF ENGINE COMPT) LEFT FRONT SIDE MARKER LIGHT LEFT FRONT TURN SIGNAL LIGHT LEFT TURN IND LT GRN WIRE OF ENGINE COMPT) PANEL FUSE PNK WIRE RED WIRE RIGHT FRONT SIDE MARKER LIGHT RIGHT FRONT TURN SIGNAL LIGHT T-LP RELAY TAIL TAIL FUSE TURN SIGNAL SWITCH RIGHT TURN IND LIGHT CONTROL SWITCH WHT WIRE WHT/BLK WIRE YEL WIRE

A/C CONTROL ASSEMBLY AIRBAG SENSOR ASSEMBLY BATTERY BLOWER MOTOR CONTROLLER BLK WIRE BLOWER MOTOR CONTROLLER BODY ECU BP (RIGHT REAR OF VEHICLE) BM (AT REAR OF VEHICLE) BQ (RIGHT REAR OF VEHICLE) BRAKE CONTROL POWER SUPPLY BRN WIRE CENTER CONNECTOR 1 (BEHIND CLUSTER) CENTER CONNECTOR 2 (RIGHT I/P BRACE) COMBINATION SWITCH DATA LINK CONNECTOR 3 DRIVER SIDE ELECTRICAL KEY ANTENNA LEFT FRONT DOOR OSCILLATOR DRIVER SIDE J/B (BEHIND LEFT END OF DASH) FLASHER RELAY EC (AT REAR OF ENGINE) ED (AT REAR OF ENGINE) ENGINE CONTROL MODULE FUEL PUMP GARAGE DOOR OPENER/ INNER MIRROR GATEWAY ECU GLOVE BOX LIGHT GRN WIRE HAZARD SWITCH HTR RELAY HYBRID VEHICLE CONTROL ECU IG (ABOVE LEFT KICK PANEL) IGNITION COIL AND IGNITER 1 IGNITION COIL AND IGNITER 2 IGNITION COIL AND IGNITER 3 IGNITION COIL AND IGNITER 4 IH (ABOVE LEFT KICK PANEL) IJ (BEHIND CENTER OF DASH) INTERIOR LIGHT) INV W/P RELAY RELAY J/C 12 (BEHIND RIGHT SIDE OF DASH) J/C 24 (BEHIND LEFT END OF DASH) J/C 27 (LEFT SIDE OF PASS COMPT) J/C 29 (IN RIGHT REAR DOOR) J/C 32 (RIGHT REAR OF VEHICLE) LEFT FRONT DOOR UNLOCK DETECTION SWITCH LEFT MIRROR HEATER MAIN SWITCH CLOCK POWER OUTLET 1 POWER OUTLET 2 POWER OUTLET RELAY STEERING SENSOR POWER STEERING ECU POWER WINDOW MASTER SWITCH PWR RELAY NOISE FILTER RED WIRE REMOTE CONTROL MIRROR SWITCH RIGHT FRONT BUCKLE SWITCH RIGHT REAR DOOR UNLOCK DETECTION SWITCH TO J/C 25 (DIAGRAM 3 OF 3) WHT WIRE WHT/BLK WIRE

2 3 1 LH 1 LH 3 LH 4 2 3 1 RH 1 RH 3 RH 4 20 3 HRLY HEAD ANTI-LOCK BRAKES SYSTEM AUTO OFF BLK WIRE BLU WIRE BODY ECU (ON RIGHT SIDE OF DRIVER SIDE J/B) BRN WIRE CENTER CONNECTOR 1 (BEHIND CLUSTER) CENTER CONNECTOR 2 (BEHIND RIGHT SIDE OF DASH) COMBINATION METER COMBINATION SWITCH COMPUTER DATA LINES SYSTEM PRST HDLP WNG SPDR RH+ LH+ DOME FUSE DRIVER SIDE J/B (BEHIND LEFT END OF DASH) ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GRN WIRE H-LP RELAY HEAD TAIL HEADLAMPS, FOGLAMPS CIRCUIT HEADLIGHT BEAM LEVEL CONTROL ECU (ABOVE RIGHT KICK PANEL) HOT AT ALL TIMES HOT IN ON AND START IH (ABOVE LEFT KICK PANEL) IK (RIGHT END OF DASH) J/C 10 (BEHIND RIGHT SIDE OF DASH) J/C 5 J/C 6 (BEHIND RIGHT END OF DASH) J/C 7, 8 (BEHIND LEFT END OF DASH) LEFT HEADLIGHT BEAM LEVEL CONTROL ACTUATOR (BEHIND LEFT HEADLIGHT) LIGHT CONTROL SWITCH LT GRN WIRE MAIN HEAD FUSE MASTER PNK WIRE PWR SUPPLY CIRCUIT RED WIRE RH LH RIGHT HEADLIGHT BEAM LEVEL CONTROL ACTUATOR (BEHIND RIGHT HEADLIGHT) SGR SHB SHG 3 1 PNK WIRE SHRL HEIGHT CONTROL SENSOR (REAR OF VEHICLE) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 4 3 CLTB CLTS CLTE 17 13 18 FFOG 2 20 3 22 DRL/DIM HRLY HEAD HF 5 21 6 SIG AUTO AUTO OFF AUTOMATIC LIGHT CONTROL SENSOR (UPPER LEFT SIDE OF DASH) BEAM IND BEAN IND BLK WIRE BLU WIRE BODY ECU (ON RIGHT SIDE OF DRIVER SIDE J/B) BRN WIRE CENTER CONNECTOR 1 (BEHIND CLUSTER) CENTER CONNECTOR 2 (BEHIND RIGHT SIDE OF DASH) COMBINATION METER COMBINATION SWITCH COMPUTER DATA LINES SYSTEM DCTY DIMMER SWITCH DOME FUSE DRIVER SIDE J/B (BEHIND LEFT END OF DASH) DRIVER SIDE J/B (BEHIND LEFT END OF DASH) ECU IG FUSE DRL DIODE ECUB ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) FUSE GAUGE FUSE GND EXTERIOR LIGHTS SYSTEM 19 8 TRLY HU GRN WIRE GRY WIRE HEAD TAIL HON CLTE CLTS CLTB HOT AT ALL TIMES HOT IN ON AND START HOT W/ IH (ABOVE LEFT KICK PANEL) J/C 11 (BEHIND LEFT END OF DASH) J/C 19 (BEHIND LEFT END OF DASH) J/C 6 (BEHIND RIGHT END OF DASH) J/C 9 (BEHIND LEFT END OF DASH) LEFT FRONT DOOR COURTESY SWITCH LIGHT CONTROL SWITCH LOW FLASH LT BLU WIRE LT GRN WIRE OFF ON FOGLIGHT SWITCH ORG/ WIRE PNK WIRE PWR SUPPLY CIRCUIT RED WIRE RELAY ENERGIZED TAIL FUSE VFD VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 4 3 CLTB CLTS CLTE 14 15 16 CLTE CLTS CLTB 17 13 18 FFOG 2 20 3 22 DRL/DIM HRLY HEAD HF 5 21 6 SIG AUTO AUTO OFF AUTOMATIC LIGHT CONTROL SENSOR (UPPER LEFT SIDE OF DASH) BEAM IND BEAN IND BLK WIRE BLU WIRE BODY ECU (ON RIGHT SIDE OF DRIVER SIDE J/B) BRN WIRE CENTER CONNECTOR 1 (BEHIND CLUSTER) CENTER CONNECTOR 2 (BEHIND RIGHT SIDE OF DASH) COMBINATION METER COMBINATION SWITCH COMPUTER DATA LINES SYSTEM DCTY DIMMER SWITCH DOME FUSE DRIVER SIDE J/B (BEHIND LEFT END OF DASH) DRIVER SIDE J/B (BEHIND LEFT END OF DASH) ECU IG FUSE ECUB ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) FUSE GAUGE FUSE GND EXTERIOR LIGHTS SYSTEM 19 8 TRLY HU GRN WIRE GRY WIRE HEAD TAIL HOT AT ALL TIMES HOT IN ON AND START HOT W/ IH (ABOVE LEFT KICK PANEL) J/C 11 (BEHIND LEFT END OF DASH) J/C 6 (BEHIND RIGHT END OF DASH) LEFT FRONT DOOR COURTESY SWITCH LIGHT CONTROL SWITCH LOW FLASH LT BLU WIRE LT GRN WIRE OFF ON FOGLIGHT SWITCH ORG/ WIRE PNK WIRE PWR SUPPLY CIRCUIT RED WIRE RELAY ENERGIZED TAIL FUSE VFD VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE CENTER CONNECTOR NO. 2 (BEHIND RIGHT SIDE OF DASH) COMBINATION SWITCH ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPART) HORN (HIGH) (IN FRONT OF RADIATOR) HORN (LOW) (IN FRONT OF RADIATOR) HORN FUSE HORN RELAY HORN SWITCH HOT AT ALL TIMES JUNCTION CONNECTOR NO. 2 (LEFT SIDE OF ENGINE COMPARTMENT) ORG/ WIRE YEL WIRE