Toyota Tundra I facelift (2002-2006) efi relay Wiring diagrams

1 2 3 4 5 7 8 11 15 18 19 25 SL 1 4 6 7 15 16 20 +B MREL 11 4 5 SLT- 3 4 5 6 14 20 21 25 PNK NSW WIRE A/T OIL TEMP A/T OIL TEMPERATURE SENSOR (ON TRANS- MISSION) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE COMBINATION METER DIODE (BEHIND UPPER LEFT SIDE OF DASH) DRIVER SIDE J/B (LOWER LEFT SIDE OF DASH) EA (LEFT FRONT FENDER) ED (LEFT SIDE OF ENGINE) EFI 1 FUSE EFI RELAY ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOIDS ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH, NEAR "A" PILLAR) ENGINE COOLANT TEMPERATURE SENSOR (FRONT OF ENGINE) ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) FUSE GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN HOT IN ON OR ACC HOT IN ON OR START IE (BEHIND LEFT KICK PANEL) IGN FUSE J/C 10 J/C 2 J/C 28, J/C 29 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 4 (BEHIND LEFT KICK PANEL) J/C 8 (BEHIND UPPER LEFT SIDE OF DASH) J/C 9 (BEHIND UPPER LEFT SIDE OF DASH) LT GRN WIRE LT GRN/BLK WIRE NO. 1 NO. 2 NO. 3 O/D MAIN SWITCH (CENTER OF DASH) IH (BEHIND RIGHT KICK PANEL) OD OFF ODMS ODLP OILW ORG/ WIRE RED WIRE RED/BLK WIRE RED/YEL WIRE SLT- STA FUSE STA IGSW BATT STP STARTING SYSTEM STOP FUSE STOPLIGHT SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) VEHICLE SPEED SENSOR (ON TRANS- MISSION) VTA THW OIL VC W/O DOOR LOCK CONTROL W/ DOOR LOCK CONTROL WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE

2 8 4 15 10 CL+ CL- 4 16 1 20 15 8 6 17 MREL BATT +B STP IGSW +BM A/T ACCEL POSITION SENSOR (ON LEFT SIDE OF ENGINE) ANTI-LOCK BRAKES SYSTEM BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BRN WIRE CL- COMBINATION METER CONTROL CIRCUIT CRUISE CONTROL CLUTCH SWITCH (ABOVE CLUTCH PEDAL) CRUISE CONTROL IND CRUISE CONTROL SWITCH (COMBINATION SWITCH) DRIVER'S SIDE J/B (BEHIND LOWER LEFT SIDE OF DASH) ED (ON LEFT SIDE OF ENGINE) EFI RELAY ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM R/B (ON LEFT SIDE OF ENGINE COMPT) ETCS FUSE EFI 1 FUSE FUSE GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START IGN FUSE IH (BEHIND RIGHT KICK PANEL) J/C 18 (ON LEFT SIDE OF ENGINE COMPT, UNDER ENGINE ROOM R/B) J/C 2 (ON LEFT SIDE OF ENGINE COMPT, UNDER ENGINE ROOM R/B) J/C 25 (ON LEFT SIDE OF ENGINE COMPT) J/C 26, 27 (BEHIND LEFT KICK PANEL) J/C 28, 29 (BEHIND UPPER RIGHT SIDE OF DASH, NEAR PASSENGER'S AIR BAG) J/C 4 (BEHIND LEFT KICK PANEL) J/C 9 (BEHIND UPPER LEFT SIDE OF DASH, NEAR INSTRUMENT CLUSTER) M- M+ M/T M/T A/T NCA WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RES+ SPEEDOMETER STOP FUSE THROTTLE CONTROL MOTOR (ON THROTTLE BODY) THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) VC VTA W/ DOOR LOCK CONTROL WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE

1 2 3 8 9 22 28 26 23 29 27 +B 13 19 6 12 10 24 17 PI STP +BM 2 3 17 M- M+ ACTIVE CIRCUIT ANTI-LOCK BRAKES SYSTEM BATT MREL IGSW VPA EPA VCPA BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN WIRE CCS SPD COMBINATION METER CONTROL CIRCUIT CRUISE CONTROL SWITCH (COMBINATION SWITCH) CRUISE IND D POSITION SWITCH (PARK/NEUTRAL POSITION SWITCH) (ON TRANSMISSION) DRIVER'S SIDE J/B (BEHIND LOWER LEFT SIDE OF DASH) EB (ON RIGHT REAR OF ENGINE) EC (ON LEFT SIDE OF FIREWALL) EFI 1 FUSE EFI RELAY ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM R/B (ON LEFT SIDE OF ENGINE COMPT) ETCS FUSE FUSE GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START IE (BEHIND LEFT KICK PANEL) IGN FUSE IH (BEHIND RIGHT KICK PANEL) J/C 18 (UNDER ENGINE ROOM R/B) J/C 2 (UNDER ENGINE ROOM R/B) J/C 23, 24 (BEHIND LEFT END OF DASH) J/C 25 (ON LEFT SIDE OF ENGINE COMPT) J/C 26, 27 (BEHIND LEFT KICK PANEL) J/C 4 (BEHIND LEFT KICK PANEL) J/C 8 (BEHIND UPPER LEFT SIDE OF DASH, NEAR INSTRUMENT CLUSTER) LT GRN/RED WIRE PNK/BLU WIRE PNK/GRN WIRE RED WIRE RED/GRN WIRE SPEEDOMETER STOP FUSE STOPLIGHT SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) THROTTLE CONTROL MOTOR, POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) VIO/RED WIRE W/ DOOR LOCK CONTROL W/O DOOR LOCK CONTROL WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE

1 2 3 8 9 22 28 26 23 29 27 +B 13 19 6 12 10 24 17 PI STP +BM 2 3 17 M- M+ ACTIVE CIRCUIT ANTI-LOCK BRAKES SYSTEM BATT MREL IGSW VPA EPA VCPA BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CCS ON/OFF CCS SPD COMBINATION METER CONTROL CIRCUIT CRUISE CONTROL SWITCH (COMBINATION SWITCH) CRUISE IND D POSITION SWITCH (PARK/NEUTRAL POSITION SWITCH) (ON TRANSMISSION) DRIVER'S SIDE J/B (UNDER LEFT END OF DASH) DRIVER'S SIDE J/B GAUGE FUSE (UNDER LEFT END OF DASH) EB (ON RIGHT REAR OF ENGINE) EFI 1 FUSE EFI RELAY ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) ETCS FUSE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT IN ON OR START IGN 1 FUSE IP (BEHIND CENTER IPO J/C 28, 29 (BEHIND CENTER OF DASH) J/C 34 (UNDER ENGINE ROOM R/B) J/C 35 (ON LEFT SIDE OF ENGINE COMPT) J/C 45 (BEHIND LEFT SIDE OF DASH) J/C 55 (BEHIND RIGHT SIDE OF DASH) J/C 55, 56 (BEHIND RIGHT SIDE OF DASH) LT GRN/RED WIRE OF DASH) PNK/BLU WIRE RED WIRE RED/BLU WIRE RED/YEL WIRE SHORT CONNECTOR (BEHIND LEFT SIDE OF DASH) SPEEDOMETER STOP FUSE SUB J/B 3 (BEHIND CENTER OF DASH) THROTTLE CONTROL MOTOR, POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE

3.4L A/T 4.7L 4.7L 4.7L 3.4L A/C DUAL PRESSURE SWITCH ABS ACTUATOR W/ ECU ABS DECELE- RATION SENSOR SHIELD ABS, BA, TRAC, VCS ACTUATOR BK (AT BASE OF RIGHT REAR DOOR) BLK WIRE BRN WIRE COMBINATION SWITCH DAYTIME RUNNING LIGHTS RESISTOR DRL 4 RELAY FOG RELAY EFI RELAY FUEL PUMP BLOWER SWITCH HIGH MOUNTED STOP LIGHT, CARGO LIGHT HTR RELAY INTEGRATION RELAY J/C 1 (ON LEFT SIDE OF ENGINE COMPT, UNDER ENGINE ROOM R/B) J/C 13 (BEHIND RIGHT KICK PANEL) J/C 18 (ON LEFT SIDE OF ENGINE COMPT, J/C 25 (ON LEFT SIDE OF ENGINE COMPT) J/C 26, 27 (BEHIND LEFT KICK PANEL) J/C 3 (BEHIND LEFT KICK PANEL) LEFT FRONT PARK/TURN LIGHT LIGHT CONTROL SWITCH M/T NCA WIRE PARKING BRAKE SWITCH TVIP ECU POSITION DETECTION SWITCH POWER OUTLET POWER OUTLET POWER OUTLET RELAY POWER RELAY POWER WINDOW CONTROL SWITCH (BACK WINDOW) RIGHT DOOR KEY LOCK/ UNLOCK SWITCH RIGHT DOOR LOCK CONTROL SWITCH RIGHT DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SWITCH RIGHT FRONT PARK/TURN LIGHT RIGHT MIRROR HEATER RIGHT VANITY LIGHT RIGHT VANITY LIGHT PERSONAL LIGHT SKID CONTROL ECU STEREO COMPONENT AMPLIFIER (W/ VSC) RADIO, PLAYER SUB BATT RELAY TOW TAIL RELAY ST RELAY TOWING PACKAGE TRANSFER TRANSFER SHIFT ACTUATOR POSITION DETECTION SWITCH TRANSFER TRANSFER NEUTRAL POSITION DETECTION SWITCH TURN SIGNAL SWITCH UNDER ENGINE ROOM R/B) W/ DRL W/ VSC W/O DRL W/O VSC WASHER LEVEL SENSOR WHT WIRE WHT/BLK WIRE WIPER/ WASHER SWITCH DATA LINK CONNECTOR 3 CIGARETTE LIGHTER

3.4L 4.7L A/C FUSE ACC CUT RELAY (4.7L) AIR CONDITIONING SYSTEM ANTI LOCK BRAKES, HEADLIGHTS, EXTERIOR LIGHTS, POWER WINDOWS, DOOR LOCKS SYSTEMS BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE CIGARETTE LIGHTER COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM ECU-IG FUSE EFI 2 FUSE EFI RELAY ENGINE CONTROLS SYSTEM ENGINE ROOM R/B (ON LEFT SIDE OF ENGINE COMPARTMENT) FROM EFI 1 FUSE FROM ENGINE ROOM FROM HTR FUSE (DIAGRAM 1 OF 2) FROM J/B FUSE (DIAGRAM 1 OF 2) FUSE GAUGE FUSE FUSE GRN/BLK WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE HEATER RELAY HORN FUSE TAIL FUSE CARGO LP FUSE POWER FUSE IGNITION SWITCH INTE- GRATION RELAY INTEGRATION RELAY J/C 1 (ON LEFT SIDE OF ENGINE COMPT, UNDER ENGINE ROOM R/B) J/C 2 (ON LEFT SIDE OF ENGINE COMPT, UNDER ENGINE ROOM R/B) J/C 26, 27 (BEHIND LEFT KICK PANEL) J/C 3 (BEHIND LEFT KICK PANEL) LOCK ON LOCK OFF ON ON LOCK OFF OFF POWER RELAY POWER WINDOWS SYSTEM RED WIRE RED/BLK WIRE ST RELAY (3.4L) STA FUSE IGN FUSE STARTING/ CHARGING SYSTEM STOP FUSE OBD FUSE TO POWER OUTLET RELAY (DIAGRAM 1 OF 2) TRANSMISSIONS SYSTEM TRANSMISSIONS, STARTING/CHARGING, ENGINE CONTROLS SYSTEMS TURN FUSE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WIP FUSE WIPER/WASHER SYSTEM YEL WIRE YEL/RED WIRE

ABS 1 FUSE ABS 2 FUSE AIR CONDITIONING SYSTEM ALT FUSE CARGO LP FUSE ALT-S FUSE ANTI-LOCK BRAKES SYSTEM BATT CHARGE FUSE BATTERY BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM POWER WINDOWS, DOOR LOCKS SYSTEMS DEFOG FUSE DEFOG RELAY DEFOGGER SYSTEM DOME FUSE ECU B FUSE RAD 1 FUSE DOOR 2 FUSE DOOR LOCKS, POWER WINDOWS SYSTEMS DRIVER SIDE J/B (UNDER LEFT END OF DASH) EFI 1 FUSE EFI 2 FUSE EFI RELAY ENGINE CONTROLS, CRUISE CONTROL SYSTEMS ENGINE CONTROLS SYSTEM ENGINE CONTROLS, EXTERIOR LIGHTS SYSTEM ENGINE CONTROLS, TRANSMISSIONS, CRUISE CONTROL SYSTEMS ENGINE ROOM J/B ENGINE ROOM R/B 3 ETCS FUSE EXTERIOR LIGHTS, INTERIOR LIGHTS SYSTEMS FROM FUSIBLE LINK BLOCK (DIAGRAM 1 OF 2) FUSE FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPT) GRN WIRE GRN/RED WIRE HEAD RELAY HEATER FUSE HORN RELAY INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS, INSTRUMENT CLUSTER SYSTEMS LT GRN WIRE MIAN FUSE MIR HTR FUSE OBD FUSE SEAT HTR FUSE OF ENGINE COMPT) PANEL FUSE POWER WINDOWS SYSTEM PWR 2 FUSE PWR 1 FUSE FUSE PWR SEAT FUSE RAD 3 FUSE ST FUSE RED WIRE RED/BLK WIRE RED/WHT WIRE SEATS SYSTEM POWER TOPS SYSTEM SHORT PIN HORN FUSE SOUND SYSTEMS STARTING/ CHARGING SYSTEM STOP FUSE SUN ROOF FUSE PWR 5 FUSE TAIL FUSE TAILLIGHT RELAY POWER MAIN RELAY TO AC INV FUSE (DIAGRAM 2 OF 2) TO DRIVER SIDE J/B (DIAGRAM 1 OF 2) TO IGNITION SWITCH (DIAGRAM 2 OF 2) TOWING BRK FUSE TOWING FUSE TOWING TAIL FUSE TURN, HAZ FUSE WARNING, INTERIOR LIGHTS, INSTRUMENT CLUSTER SYSTEMS SOUND SYSTEMS WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE

BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/ORG WIRE BLU/WHT WIRE BRN WIRE C/OPN RELAY CAMSHAFT POSITION SENSOR (RIGHT FRONT OF ENGINE) CL- CRANKSHAFT POSITION SENSOR (LEFT FRONT OF ENGINE) ED (LEFT SIDE OF ENGINE) EFI RELAY ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) FUEL INJECTORS FUEL PUMP (IN FUEL TANK) GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION SWITCH J/C 25 (LEFT SIDE OF ENGINE COMPT) J/C 26, J/C 27 (BEHIND LEFT KICK PANEL) J/C 3 (LEFT KICK PANEL) J/C 8 (BEHIND UPPER LEFT SIDE OF DASH) LOCK LT GRN WIRE NE+ POWER STEERING OIL PRESSURE SWITCH (RIGHT FRONT OF ENGINE) PSW CCV RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RUN WIRE SLT- VPA SLT- WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE

A/T INDICATOR LIGHT SWITCH (INTEGRAL TO PARK/NEUTRAL POSITION SWITCH) (ON TRANS) A/T OIL TEMP MALF IND LAMP BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE C/OPN RELAY COMBINATION METER CONTROL UNIT) DIODE (A/T) (UPPER LEFT SIDE OF DASH) DRIVER SIDE J/B DRIVER SIDE J/B (BEHIND LEFT SIDE OF DASH) EC (LEFT SIDE OF FIREWALL) EFI RELAY ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) FUEL PUMP (IN FUEL TANK) FUEL PUMP RELAY FUEL PUMP RESISTOR (LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GAUGE FUSE FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN OR ACC HOT IN RUN OR START HOT IN RUN OR START IDLE-UP DIODE (BEHIND RIGHT SIDE OF DASH) IE (BEHIND LEFT KICK PANEL) INTEGRATION RELAY J/C 10 (BEHIND UPPER LEFT SIDE OF DASH) J/C 10 (UPPER LEFT SIDE OF DASH) J/C 25 J/C 28, J/C 29 (BEHIND CENTER OF DASH) J/C 3 (BEHIND LEFT KICK PANEL) J/C 9 (BEHIND UPPER LEFT SIDE OF DASH) LT GRN WIRE LT GRN/BLK WIRE O/D OFF IND RED WIRE RED/BLK WIRE STOP FUSE TAIL FUSE VIO/GRN WIRE VSV (EVAP) (LEFT SIDE OF ENGINE) WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE

+BM A/C SYSTEM ACLD ACMG ACS BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BQ (BELOW LEFT FRONT SEAT) BRN WIRE C/ OPN RELAY CRUISE CONTROL SYSTEM EA (LEFT FRONT FENDER) EFI 1 FUSE EFI 2 FUSE EFI RELAY ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) ETCS FUSE FUEL PUMP RELAY FUEL PUMP RESISTOR (LEFT SIDE OF ENGINE COMPT) FUSE BOX (BEHIND LEFT KICK PANEL) STA FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN J/C 38, J/C 39 (BEHIND LEFT KICK PANEL) J/C 42, J/C 43 (BEHIND LEFT KICK PANEL) J/C 47, J/C 48 (BEHIND LEFT SIDE OF DASH) J/C 54 (BEHIND CENTER OF DASH) J/C-35 LT GRN WIRE LT GRN/BLU WIRE LT GRN/RED WIRE O/D MAIN SWITCH ODLP OILW RED WIRE RED/GRN WIRE RED/YEL WIRE SHORT CONNECTOR THE TRANS- MISSION SYSTEM VIO WIRE VIO/WHT WIRE VSV (CANISTER CLOSED VALVE) (UNDER LEFT SIDE OF VEHICLE) WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE