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Vehicle Wiring Details for your
2003- Toyota Sequoia Wiring Diagram
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Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2003- Toyota Sequoia . This information outlines the wires location, color and polarity to help you identify the proper connection spots in the vehicle. Please be sure to test all of your wires with a digital multimeter before making any connections. More information on using a multimeter and testing wires please see our Technical Support Area.


 PART   COLOR  LOCATION
 12 VOLT CONSTANT   WHITE/RED (+) and WHITE/BLUE (+)   @ IGNITION SWITCH HARNESS
 STARTER  BLACK/WHITE (+)  @ IGNITION SWITCH HARNESS
 STARTER 2  N/A  
 IGNITION 1  BLACK/RED (+)  @ IGNITION SWITCH HARNESS
 IGNITION 2  BLACK/YELLOW (+)  @ IGNITION SWITCH HARNESS
 IGNITION 3  N/A  
 ACCESSORY/HEATER BLOWER 1  PINK (+)  @ IGNITION SWITCH HARNESS
 ACCESSORY/HEATER BLOWER 2  N/A  
 KEYSENSE  YELLOW/GREEN (-), See NOTE #6  @ IGNITION SWITCH HARNESS
 PARKING LIGHTS ( - )  GREEN (-)  @ HEADLIGHT SWITCH
 PARKING LIGHTS ( + )  GREEN (+)  @ BACK of FUSEBOX, 12-PIN Plug
 POWER LOCK  See NOTE #2  See DIAGRAM
 POWER UNLOCK  See NOTE #2  See DIAGRAM
 DOOR TRIGGER  See NOTE #4  IN DRIVERS KICK PANEL and PASSENGER KICK PANEL
 DOMELIGHT SUPERVISION  TURNS ON with UNLOCK  
 TRUNK RELEASE  N/A  
 SLIDING POWER DOOR  N/A  
 HORN  BLACK/YELLOW (-)  @ STEERING COLUMN HARNESS
 TACH  YELLOW/GREEN (AC)  @ ECM, 31-PIN Plug, Pin 5, See NOTE #5
 WAIT TO START LIGHT  N/A  
 BRAKE  GREEN/YELLOW (+)  @ SWITCH ABOVE BRAKE PEDAL
 FACTORY ALARM DISARM   DISARMS with KEYSENSE wire, See NOTE #6  @ IGNITION SWITCH HARNESS
 ANTI-THEFT  TOYOTA'S TRANSPONDER ANTI-THEFT SYSTEM, See NOTE #1  @ IGNITION SWITCH TUMBLER
 EXTRA INFORMATION
 NOTE #1: TOYOTA'S TRANSPONDER SYSTEM, Requires Bypass Module: (For Remote Starting Only) Part #791 Bypass, (Requires Extra Key) for Operation. (For Remote Starting Only) Part # PK-ALL Bypass. (No Extra Key Required for Operation) 2-KEYS Required to Program Module. (For Remote Starting/Door Locks) Part # DB-ALL (No Extra Key Required for Operation) 1-KEY Required for Programming. To order please go to the SECURITY BYPASS MODULE Page or INTERFACE BYPASS MODULE Page on this website. NOTE #2: THIS VEHICLE WILL REQUIRES AN EXTRA RELAY PART #775 AND DIODES TO DO THE KEYLESS ENTRY FUNCTION, to connect, See DIAGRAM NOTE #3; THE BECU (Body Electronic Control Unit) IS LOCATED ABOVE THE DRIVERS KICK PANEL NOTE #4: THE (2) DRIVER SIDE DOOR TRIGGER WIRES ARE IN A 14-PIN PLUG, IN THE DRIVER KICK PANEL. DRIVER DOOR TRIGGER IS GRAY/RED(-) IN PIN 14 , THE DRIVERS REAR DOOR IS RED/WHITE(-) IN PIN 13 . THE (2) PASSENGER SIDE DOOR TRIGGER WIRES ARE IN A 14-PIN PLUG, IN THE PASSENGER KICK PANEL . THE PASSENGER SIDE DOOR, IS A GREEN/BLACK(-) IN PIN 14, AND THE PASSENGER REAR DOOR, IS A RED/WHITE(-) IN PIN 5 . WHEN CONNECTING TO AN ALARM SYSTEM, USE ALL (4) DOOR TRIGGER WIRES AND DIODE ISLOATE, TO CONNECT, SEE DIAGRAM NOTE #5; THE ECM (Engine Control Module) IS LOCATED BEHIND THE GLOVEBOX NOTE #6: THE KEYSENSE WIRE WILL DISARM THE VEHICLE WITHOUT UNLOCKING THE DOORS BY APPLYING A (-)NEGATIVE TO THIS WIRE DURING REMOTE STARTING.
 
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