Toyota Prius I facelift (2000-2003) j/c 27, j/c 28 (behind upper left center of dash) Wiring diagrams

A/C CONDENSER FAN MOTOR (LEFT FRONT OF ENGINE COMPT) A/C TRIPLE PRESSURE SWITCH (LEFT FRONT OF ENGINE COMPT) A/C W/P RELAY ACT BLK WIRE BLK/RED WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (RIGHT SIDE OF INSTRUMENT PANEL J/B) BRN WIRE BRN/WHT WIRE CDS FAN FUSE CONVERTER (LEFT SIDE OF ENGINE COMPT) COMBI- NATION METER ENGINE CONTROL MODULE (BEHIND RIGHT END OF DASH) ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 3 (REAR OF ENGINE COMPT) FAN FAN 1 RELAY FAN 2 RELAY FAN 3 RELAY FUSE GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN ON OR START HTR 1 RELAY HTR 2 RELAY HTR 3 RELAY IDH INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) ECU-IG FUSE J/C 1 (BEHIND LEFT END OF DASH) J/C 11 (BEHIND LEFT END OF DASH) J/C 27, J/C 28 (BEHIND UPPER LEFT CENTER OF DASH) J/C 7 (BELOW RIGHT END OF DASH) LT GRN WIRE MPX PNK WIRE PNK/BLK WIRE PNK/GRN WIRE PTC HEATER (BELOW RIGHT END OF DASH) RADIATOR FAN MOTOR (FRONT OF ENGINE COMPT) RDI FUSE RED WIRE RED/BLU WIRE RED/WHT WIRE SINGLE DUAL TAM VIO WIRE VIO/YEL WIRE WATER PUMP MOTOR (LEFT CENTER OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE

A/C AMPLIFIER (BEHIND CENTER OF DASH) A/C CONDENSER FAN MOTOR (LEFT FRONT OF ENGINE COMPT) A/C TRIPLE PRESSURE SWITCH (LEFT FRONT OF ENGINE COMPT) BLK WIRE BLU WIRE BLU/WHT WIRE CDS FAN FUSE ENGINE CONTROL MODULE (BEHIND RIGHT END OF DASH) ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) FAN FAN 1 RELAY FAN 2 RELAY FAN 3 RELAY GRN WIRE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) ECU-IG FUSE J/C 1 (BEHIND LEFT END OF DASH) J/C 27, J/C 28 (BEHIND UPPER LEFT CENTER OF DASH) J/C 7 (BELOW RIGHT END OF DASH) LT GRN WIRE RADIATOR FAN MOTOR (FRONT OF ENGINE COMPT) RDI FUSE RED WIRE RED/WHT WIRE SINGLE VIO WIRE VIO/YEL WIRE WATER TEMPERATURE SWITCH (LOWER RIGHT FRONT OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 8 10 12 13 14 15 16 17 18 19 20 22 23 24 27 28 29 30 31 STP 21 10 16 19 27 28 18 GO SPHV ESTP HTE+ ETH- ETH+ HTE- 22 14 24 16 HVO- HVO+ HVI+ HVI- 5 7 23 EOM IGSW 7 8 10 MREL SPDI GO ACCEL POSITION SENSOR (BEHIND UPPER LEFT SIDE OF DASH) BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BRAKE ECU (BEHIND LEFT CENTER OF DASH) BRN WIRE CCS BTH- BTH+ HTE+ HTB+ COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE CRUISE CONTROL SWITCH (COMBINATION SWITCH) DOME FUSE ENGINE CONTROL MODULE (BEHIND RIGHT END OF DASH) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 2 (ON REAR OF ENGINE COMPT) ETH- ETH+ HTE- HTB- PNK WIRE GAUGE FUSE GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN RUN OR START HV FUSE HYBRID VEHICLE CONTROL ECU (BEHIND RIGHT SIDE OF DASH, FORWARD OF GLOVE BOX) IGCT RELAY IGNITION SWITCH INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) J/C 1 (LEFT END OF DASH) J/C 11 (BEHIND LEFT END OF DASH) J/C 17 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 18, J/C 19 (BEHIND RIGHT END OF DASH) J/C 2, J/C 3 (BEHIND UPPER LEFT END OF DASH) J/C 22, J/C 23 (BEHIND UPPER LEFT SIDE OF DASH) J/C 24, J/C 25 (BEHIND UPPER LEFT CENTER OF DASH) J/C 27, J/C 28 (BEHIND UPPER LEFT CENTER OF DASH) LOCK LT GRN WIRE ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (BEHIND LEFT SIDE OF DASH) PNK WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RED/YEL WIRE RES/ SET/ COAST RUN WIRE SPDO ESTP TC STOP FUSE VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE

BDR BLK/RED WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/YEL WIRE BODY ECU DCTY DOME FUSE DOOR FUSE ECU-B FUSE ENGINE HOOD COURTESY SWITCH (NEAR HOOD LATCH) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GRN WIRE GRN/BLK WIRE HORNS SYSTEM HOT AT ALL TIMES HOT IN RUN OR START IMMOBILIZER CIRCUIT IND INSTRUMENT PANEL J/B INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) J/C 1 (LEFT END OF DASH) J/C 11 (BEHIND LEFT END OF DASH) J/C 14, J/C 15 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 17 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 26 (BEHIND UPPER LEFT CENTER OF DASH) J/C 27 (BEHIND UPPER LEFT CENTER OF DASH) J/C 27, J/C 28 (BEHIND UPPER LEFT CENTER OF DASH) J/C 33 LEFT "C" PILLAR) LEFT REAR DOOR LOCK UNIT LOCK LSWP LT GRN/BLK WIRE LUG LUGGAGE COMPARTMENT DOOR KEY UNLOCK SWITCH OBDII FUSE PCTY RCTY RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RIGHT FRONT DOOR LOCK CONTROL SWITCH RIGHT REAR DOOR LOCK UNIT THEFT DETERRENT HORN (BEHIND RIGHT HEADLIGHT) UNLK UNLOCK WARNING SWITCH WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

5 18 16 10 15 6 CPUB BLU/BLK WIRE BLU/YEL WIRE BRN WIRE CENTER CLUSTER SWITCH DCTY LSWD KUL KL DIODE (DOOR COURTESY) (BEHIND LEFT END OF DASH, ABOVE INSTRUMENT PANEL J/B) GRN WIRE GRN/YEL WIRE IMMOBILIZER CIRCUIT INSTRUMENT PANEL J/B J/C 11 (BEHIND LEFT END OF DASH) J/C 12, J/C 13 (BEHIND UPPER LEFT CENTER OF DASH) J/C 16 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 17 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 18, J/C 19 (BEHIND RIGHT END OF DASH) J/C 24 (BEHIND UPPER LEFT CENTER OF DASH) J/C 24, J/C 25 (BEHIND UPPER LEFT CENTER OF DASH) J/C 27, J/C 28 (BEHIND UPPER LEFT CENTER OF DASH) LEFT FRONT DOOR COURTESY SWITCH LEFT FRONT DOOR LOCK UNIT LEFT REAR DOOR COURTESY SWITCH LOCK LT GRN/BLK WIRE POWER WINDOW MASTER SWITCH RADIO, PLAYER RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR COURTESY SWITCH RIGHT FRONT DOOR LOCK UNIT RIGHT REAR DOOR COURTESY SWITCH UNLK WHT WIRE WHT/BLK WIRE YEL WIRE

+B DIM IND H-LP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 DRL BLK WIRE BLU WIRE BLU/ORG WIRE BODY ECU (RIGHT SIDE OF INSTRUMENT PANEL J/B) BRN WIRE COMBINATION METER COMBINATION SWITCH DAYTIME RUNNING LIGHT RELAY (BEHIND UPPER LEFT SIDE OF DASH) DIM RELAY DIMMER SWITCH DIODE (DRL) (BEHIND RIGHT END OF DASH) DOME FUSE DRL FUSE DRL RELAY ECU-B FUSE ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 3 (RIGHT REAR OF ENGINE COMPT) GAUGE FUSE GRN WIRE HEAD FUSE HEAD HI (LH) HEAD HI (RH) HEAD INDICATOR HEAD LO (LH) HEAD LO (RH) HEAD RELAY HI CHG- HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN ON OR START INSTRUMNET PANEL J/B (BEHIND LEFT END OF DASH) J/C 1 (BEHIND LEFT END OF DASH) J/C 11 (BEHIND LEFT END OF DASH) J/C 12, J/C 13 (BEHIND UPPER LEFT CENTER OF DASH) J/C 17 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 20 (BEHIND UPPER LEFT CENTER OF DASH) J/C 27, J/C 28 (BEHIND UPPER LEFT CENTER OF DASH) LEFT HEADLIGHT LIGHT CONTROL SWITCH LOW LOW FLASH FLASH OFF HEAD ORG/ WIRE PARKING BRAKE SWITCH HIGH HIGH PKB IG RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT HEADLIGHT TAIL WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 +B IG BLK/RED WIRE BLK/WHT WIRE BLU/BLK WIRE BRN WIRE CENTER CLUSTER SWITCH DATA LINK CONNECTOR (DLC) 3 (BEHIND LOWER LEFT SIDE OF DASH) ECU-B FUSE FCVC FORCED ENTRY CIRCUIT HOT AT ALL TIMES HYBRID VEHICLE CONTROL ECU (BEHIND RIGHT SIDE OF DASH, FORWARD OF GLOVE BOX) IGNITION SWITCH IND CTY KSW HEVC INSTRUMENT PANEL J/B INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) J/C 10 (ON LEFT END OF DASH) J/C 11 (BEHIND LEFT END OF DASH) J/C 12, J/C 13 (BEHIND UPPER LEFT CENTER OF DASH) J/C 20 (BEHIND UPPER LEFT CENTER OF DASH) J/C 24 (BEHIND UPPER LEFT CENTER OF DASH) J/C 24, J/C 25 (BEHIND UPPER LEFT CENTER OF DASH) J/C 27, J/C 28 (BEHIND UPPER LEFT CENTER OF DASH) LEFT FRONT DOOR COURTESY SWITCH LOCK LT GRN/BLK WIRE RADIO, PLAYER RED/GRN WIRE RED/WHT WIRE RUN WIRE TRANSPONDER KEY COMPUTER (BEHIND UPPER LEFT SIDE OF DASH) UNLOCK WARNING SWITCH WHT/BLK WIRE

ABS IND. BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU BRAKE IND BRN WIRE BRN/RED WIRE BUZZER CHARGE IND COMBINATION METER CONN A CONN B CRUISE IND DOOR IND ECU-B FUSE ENGINE CONTROL MODULE (BEHIND RIGHT END OF DASH) ENGINE ROOM J/B (ON LEFT SIDE OF ENG COMPT) DOME FUSE EXTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM FU+ FUA FUEL PUMP/ FUEL SENDER (IN FUEL TANK) FUEL SENDER GAUGE FUSE GRN WIRE GRN/RED WIRE GRY WIRE GRY/BLK WIRE GRY/RED WIRE HEAD IND HIGH BEAM IND HOT AT ALL TIMES HOT IN RUN OR START HYBRID VEHICLE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) MULTI DISPLAY INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) J/C 27 (BEHIND UPPER LEFT CENTER OF DASH) J/C 27, J/C 28 (BEHIND UPPER LEFT CENTER OF DASH) LT GRN/RED WIRE MALFUNCTION IND MPX ODO ODO/TRIP SWITCH OIL IND OUTPUT CONTROL IND RED WIRE RED/GRN WIRE RIGHT TURN IND SEAT BELT IND (DRIVER'S) SEAT BELT IND (FRONT PASSENGER'S) SENSOR SPD SPD SRS IND LEFT TURN IND VFD VIO WIRE WATER TEMPERATURE IND (HIGH) WATER TEMPERATURE IND (LOW) WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE

ASHTRAY ILLUMINATION BLK WIRE BLU WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE CENTER CLUSTER SWITCH CIGARETTE LIGHTER ILLUMINATION COMBINATION METER DC/DC FUSE DOME FUSE ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) FUSIBLE LINK BLOCK 1 (LEFT SIDE OF ENGINE COMPT) HAZARD WARNING SWITCH HAZARD WARNING SWITCH MULTI- DISPLAY HEAD OFF TAIL HOT AT ALL TIMES INSTRUMNET PANEL J/B (BEHIND LEFT END OF DASH) J/C 11 (BEHIND LEFT END OF DASH) J/C 17 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 21 (BEHIND RIGHT END OF DASH) J/C 27, J/C 28 (BEHIND UPPER LEFT CENTER OF DASH) LIGHT CONTROL RHEOSTAT ILL- LIGHT CONTROL SWITCH (PART OF COMBINATION SWITCH) LT GRN WIRE PANEL FUSE RED WIRE TAILLIGHT RELAY WHT WIRE YEL WIRE

1 PNK/ WIRE 9 PNK/ WIRE ACC+B AUI- AUO- BLK WIRE BLU WIRE BRN WIRE BU+B CENTER CLUSTER SWITCH DOME FUSE EJCT EJECT ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACC OR RUN ILLUM INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) J/C 24 (BEHIND UPPER LEFT CENTER OF DASH) J/C 26 (BEHIND UPPER LEFT CENTER OF DASH) J/C 27, J/C 28 (BEHIND UPPER LEFT CENTER OF DASH) LEFT FRONT DOOR SPEAKER LEFT FRONT DOOR SPEAKER (W/ NAVIGATION SYSTEM) LEFT REAR SPEAKER MULTI-DISPLAY NAVIGATION ECU (NEAR BASE OF LEFT "C" PILLAR) (IF EQUIPPED) PNK 2 WIRE PNK WIRE RADIO, PLAYER RED WIRE RIGHT FRONT DOOR SPEAKER RIGHT REAR SPEAKER VIO WIRE W/O NAVIGATION SYSTEM WHT WIRE YEL WIRE