Toyota Prius II (2003-2005) computer data lines system Wiring diagrams

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

BACT BL (NEAR RIGHT ``B" PILLAR) BLK WIRE BODY ECU BRN WIRE CENTER CONNECTOR 2 (BEHIND RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SWITCH DOOR CONTROL RECEIVER (RIGHT SIDE OF PASSENGER COMPT) (W/ KEYLESS ENTRY) DOOR FUSE DRIVER SIDE J/B (BEHIND LEFT END OF DASH) ECU-IG FUSE EE (LEFT REAR OF ENGINE COMPT) EF (LEFT REAR OF ENGINE COMPT) ENGINE HOOD COURTESY SWITCH (NEAR HOOD LATCH) FLASHER RELAY (EXTERIOR LIGHTS SYSTEM) FUSE GRN WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED HOT W/ ECU-IG RELAY ENERGIZED IH (ABOVE LEFT KICK PANEL) J/C 25 (BEHIND RIGHT SIDE OF DASH) J/C 26 (RIGHT REAR OF PASSENGER COMPT) J/C 30 (REAR OF PASSENGER COMPT) KEY SLOT LEFT FRONT BUCKLE SWITCH LOCK LT GRN WIRE LUGGAGE COMPARTMENT COURTESY SWITCH/ LUGGAGE COMPARTMENT DOOR OPENER MOTOR PNK WIRE POWER WINDOWS SYSTEM RED WIRE RIGHT FRONT DOOR LOCK SEC SIG T-LP RELAY (EXTERIOR LIGHTS SYSTEM) THEFT DETERRENT HORN (RIGHT SIDE OF ENGINE COMPT) (W/ KEYLESS ENTRY) UNLK VIO WIRE WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER YEL WIRE

1 2 3 4 5 6 TRG- BEAN IC BLK WIRE BLU WIRE BO (RIGHT REAR OP VEHICLE) BRN WIRE CENTER CONNECTOR 1 (BEHIND LEFT SIDE OF DASH) CENTER CONNECTOR 2 (BEHIND RIGHT SIDE OF DASH) CLG CNSL COMBINATION METER COMPUTER DATA LINES SYSTEM DATA DOOR CONTROL RECEIVER (RIGHT SIDE OF PASSENGER COMPT) DRIVER'S SIDE ELECTRICAL KEY ANTENNA (IN DRIVER'S DOOR) FRONT PASSENGER'S SIDE ELECTRICAL KEY ANTENNA (IN RIGHT FRONT DOOR) GRN WIRE GRY WIRE II (BEHIND CENTER OF DASH) INNER LUGGAGE OSCILLATOR (AT LUGGAGE COMPT) J/C 23 (IN CENTER CONSOLE) J/C 31 (REAR OF PASSENGER COMPT) J/C 34 (IN REAR OF VEHICLE) LEFT FRONT DOOR OSCILLATOR (W/ SENSOR) (IN LEFT FRONT DOOR) LT BLU WIRE LUGGAGE COMPARTMENT DOOR ELECTRICAL KEY ANTENNA (IN LUGGAGE COMPT) LUGGAGE COMPARTMENT DOOR LOCK SWITCH ORG/ WIRE OUTER LUGGAGE OSCILLATOR (AT LUGGAGE COMPT) PNK WIRE PWR SUPPLY CIRCUIT RCO PNK WIRE RED WIRE RELAY ENGERGIZED ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) GAUGE FUSE RIGHT FRONT DOOR OSCILLATOR (W/ SENSOR) (IN RIGHT FRONT DOOR) ROOM OSCILLATOR (IN CENTER CONSOLE) SEL SENS SGT SKID CONTROL ECU (BEHIND LEFT SIDE OF DASH) SMART ENTRY SMART KEY ECU (BEHIND LEFT SIDE OF DASH) SMART KEY SYSTEM CANCEL SWITCH TRG+ VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BACT BL (NEAR RIGHT ``B" PILLAR) BLK WIRE BLU WIRE BODY ECU BRN WIRE CENTER CONNECTOR 2 (BEHIND RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SWITCH DOOR FUSE DRIVER SIDE J/B (BEHIND LEFT END OF DASH) ECU-IG FUSE EE (LEFT REAR OF ENGINE COMPT) EF (LEFT REAR OF ENGINE COMPT) ENGINE HOOD COURTESY SWITCH (NEAR HOOD LATCH) FLASHER RELAY (EXTERIOR LIGHTS SYSTEM) FUSE GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED HOT W/ ECU-IG RELAY ENERGIZED IH (ABOVE LEFT KICK PANEL) J/C 24 (BEHIND LEFT END OF DASH) J/C 25 (BEHIND RIGHT SIDE OF DASH) J/C 26 (RIGHT REAR OF PASSENGER COMPT) J/C 27 (LEFT SIDE OF PASSENGER COMPT) J/C 30 (REAR OF PASSENGER COMPT) LEFT FRONT BUCKLE SWITCH LOCK LT GRN WIRE LUGGAGE COMPARTMENT COURTESY SWITCH/ LUGGAGE COMPARTMENT DOOR OPENER MOTOR ORG/ WIRE PNK WIRE POWER WINDOWS SYSTEM RED (OR PNK) WIRE RED WIRE RIGHT FRONT DOOR LOCK SEC SIG T-LP RELAY (EXTERIOR LIGHTS SYSTEM) THEFT DETERRENT HORN (RIGHT SIDE OF ENGINE COMPT) (W/ KEYLESS ENTRY) UNLK VIO WIRE WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER 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

ABS IND. ANTI-THEFT SYSTEM ANTI-LOCK BRAKES SYSTEM AUTO A/C IND BEAM IND BEAN IC BL (NEAR RIGHT ``B" PILLAR) BLK WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BQ (RIGHT REAR OF VEHICLE) BRAKE CONTROL IND BRAKE IND BRN WIRE BRN/RED WIRE BUZZER CENTER CONNECTOR 1 (BEHIND CLUSTER) CENTER CONNECTOR 2 (BEHIND RIGHT SIDE OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE IND DOME FUSE DOOR IND DRIVER SIDE J/B (BEHIND LEFT END OF DASH) ENGINE CONTROL SYSTEM ENGINE CONTROLS SYSTEM SOUND SYSTEMS HEADLIGHTS SYSTEMS ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) FRONT DEF IND FRONT PASSENGER SEAT BELT WARNING LIGHT FUEL SENDER GAUGE FUSE GRN WIRE GRN/YEL WIRE GRY WIRE HEAD IND HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN ON AND START ICE ROAD CONDITION IND IGN FUSE INLET AIR IND J/C 30 (REAR OF PASSENGER COMPT) J/C 32 (RIGHT REAR OF VEHICLE) J/C 6 (BEHIND RIGHT END OF DASH) LEFT FRONT BUCKLE SWITCH LEFT TURN IND LT BLU WIRE LT GRN WIRE MAINT REQD IND MALFUNCTION IND LAMP MASTER NAVIGATION SYSTEM ODO ODO/TRIP SWITCH ORG/ WIRE PNK EXTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM WIRE PNK WIRE POWER DISTRIBUTION POWER SUPPLY CIRCUIT REAR DEF IND RED WIRE RIGHT FRONT BUCKLE SWITCH RIGHT TURN IND SEAT BELT IND SECURITY IND SLIP IND SMART ENTRY IND SRS IND TEMP SENSOR VFD VIO WIRE VSC IND WHT WIRE WHT/BLK WIRE YEL WIRE

A/C (HTR) FUSE A/C DEFOGGER SYSTEM A/C, HEAD/ EXTERIOR LIGHTS SYSTEM WARNINGS, POWER WINDOWS SYSTEM ACC-B FUSE BLK WIRE BLU WIRE BODY ECU CENTER CONNECTOR 1 (BEHIND CLUSTER) CENTER CONNECTOR 1 (BEHIND CLUSTER) SOUND SYSTEMS, NAVIGATION SYSTEM COMPUTER DATA LINES SYSTEM COOLING FANS ANTI-LOCK BRAKE SYSTEM DEF FUSE DEF RELAY DEFOGGER SYSTEM, A/C SYSTEM DOOR FUSE DRIVER SIDE J/B (BEHIND LEFT END OF DASH) ECU-B FUSE ECU-IG FUSE ENGINE CONTROLS SYSTEM ENGINE CONTROLS, CRUISE CONTROL, EXTERIOR LIGHTS, ANTI-LOCK BRAKE SYSTEMS F/R DOOR FUSE FLASHER RELAY FROM DRIVER SIDE J/B (DIAGRAM 2 OF 2) FROM ENGINE ROOM J/B (DIAGRAM 1 OF 2) FUSE GAUGE FUSE GRN WIRE GRY WIRE HTR RELAY IH (ABOVE LEFT KICK PANEL) INSTRUMENT CLUSTER SYSTEM J/C 21 (UPPER RIGHT SIDE OF DASH) J/C 24 (BEHIND LEFT END OF DASH) JC-20 KOF LT BLU WIRE LT GRN WIRE LT LT M/HTR FUSE MIRRORS SYSTEM NOT USED NOT USED OBD FUSE ORG/ WIRE PNK WIRE POWER FUSE POWER OUTLET 1 POWER OUTLET 2 POWER OUTLET RELAY (LEFT END OF DASH) POWER SOURCE CONTROL ECU (BEHIND LEFT SIDE OF DASH) POWER WINDOWS SYSTEM PWR OUTLET FR FUSE PWR OUTLET FUSE PWR RELAY RED WIRE RELAY RELAY (BEHIND LEFT SIDE OF DASH) RR WIP FUSE SIG STOP FUSE T-LP RELAY TO DRIVER SIDE J/B (DIAGRAM 2 OF 2) VIO WIRE WHT WIRE WHT/BLK WIRE WIP FUSE WIPER/ WASHER SYSTEM WSH FUSE YEL WIRE

ANT ANTENNA AMPLIFIER (BEHIND CENTER OF DASH) BLK WIRE BLU WIRE BODY ECU (ON DRIVER SIDE J/B) BRN WIRE CENTER CONNECTOR 1 (BEHIND CLUSTER) CENTER CONNECTOR 2 CENTER CONNECTOR 2 (RIGHT I/P BRACE) COMBINATION METER COMBINATION SWITCH COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR 3 (BEHIND LOWER LEFT SIDE OF DASH) PNK WIRE DRIVER SIDE J/B (BEHIND LEFT END OF DASH) ECU-B FUSE ECU-IG FUSE ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) DOME FUSE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ ACC ON HOT W/ IG ON II (BEHIND CENTER OF DASH) J/C 19 (BEHIND LEFT END OF DASH) J/C 20 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 6 (BEHIND RIGHT END OF DASH) J/C 9 (BEHIND LEFT END OF DASH) LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER LEFT REAR DOOR SPEAKER LT BLU WIRE LT GRN WIRE MODE MULTI-DISPLAY ORG/ WIRE PARKING BRAKE SWITCH (BASE OF PARKING BRAKE LEVER) PKB DR PNK TC WIRE PNK WIRE RADIO AND PLAYER RED WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER RIGHT REAR DOOR SPEAKER SEEK VIO WIRE VOL (-) WHT WIRE YEL WIRE

AUI- AUO- BKUP LP RELAY BLK WIRE BODY ECU (ON DRIVER SIDE J/B) BRN WIRE CENTER CONNECTOR 1 (BEHIND CLUSTER) CENTER CONNECTOR 2 CENTER CONNECTOR 2 (RIGHT I/P BRACE) COMBINATION METER COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR 3 (BEHIND LOWER LEFT SIDE OF DASH) PNK WIRE DRIVER SIDE J/B (BEHIND LEFT END OF DASH) ECU-B FUSE ECU-IG FUSE ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ ACC ON HOT W/ IG ON II (BEHIND CENTER OF DASH) J/C 10 (BEHIND RIGHT SIDE OF DASH) J/C 19 (BEHIND LEFT END OF DASH) J/C 20 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 20, J/C 21 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 9 (BEHIND LEFT END OF DASH) LT BLU WIRE MIC - MIC- MI+ MULTI-DISPLAY NAVIGATION ECU (BELOW DRIVER'S SEAT) ORG/ WIRE OVERHEAD J/B (FRONT OF ROOF PANEL) PARKING BRAKE SWITCH (BASE OF PARKING BRAKE LEVER) PKB DR PNK 1 2 3 4 5 WIRE PNK TC WIRE PNK WIRE RED WIRE REV SGND MIN+ MIN- MACC SHIELD SHIELD SGND MCO+ MCO- SLD IVO+ IVO- VR SNSE SYNC SYNC VG SHIELD TX- TX+ PNK WIRE VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

31 30 25 15 17 24 14 16 PNK WIRE BLK WIRE BLU WIRE BMA BRN WIRE CENTER CONNECTOR 1 (LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (LEFT END OF DASH) EF (LEFT REAR OF ENG COMPT) ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGN ON HYBRID VEHICLE CONTROL ECU (RIGHT SIDE OF DASH) IGN FUSE IH (ABOVE LEFT KICK PANEL) LT BLU WIRE LT GRN WIRE MGNA MUA MVA MWA NCA WIRE ORG/ WIRE P CON MTR FUSE P CON MTR RELAY PNK WIRE RED WIRE RVC SHIFT CONTROL ACTUATOR (LEFT REAR OF ENG COMPT) STOP FUSE TRANSMISSION CONTROL ECU (RIGHT SIDE OF DASH) WHT WIRE WHT/BLK WIRE YEL WIRE