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Vehicle Wiring Details for your
2004 -2007 Lexus Rx330 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 2004 -2007 Lexus Rx330 . 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   RED (+)   IGNITION SWITCH HARNESS
 STARTER  BLUE (+) See NOTE *1  IGNITION SWITCH HARNESS
 STARTER 2  WHITE(+) See NOTE *1  IGNITION SWITCH HARNESS
 IGNITION 1  PURPLE(+)  IGNITION SWITCH HARNESS
 IGNITION 2  GREEN (+)  IGNITION SWITCH HARNESS
 IGNITION 3  N/A  
 ACCESSORY/HEATER BLOWER 1  GRAY (+)  IGNITION SWITCH HARNESS
 ACCESSORY/HEATER BLOWER 2  N/A  
 KEYSENSE  BLACK (-)  IGNITION SWITCH HARNESS
 PARKING LIGHTS ( - )  ORANGE (-)  @ HEADLIGHT SWITCH
 PARKING LIGHTS ( + )  LIGHT GREEN (+)  IN DRIVERS KICK PANEL, HARNESS to REAR of VEHICLE
 POWER LOCK  BROWN (Negative (-)) See NOTE *2  @ MODULE INSIDE DRIVERS DOOR
 POWER UNLOCK  GRAY (Negative (-)) Requires Double Pulse  @ MODULE INSIDE DRIVERS DOOR
 DOOR TRIGGER  See NOTE *3  @ ECU, See NOTE *3
 DOMELIGHT SUPERVISION  LIGHT BLUE (-), Requires Part #R30-H Relay  IN 12 PIN PLUG RIGHT OF FUSEBOX
 TRUNK RELEASE  PURPLE (-), Requires Part #R30-H Relay  @ HATCH RELEASE SWITCH
 SLIDING POWER DOOR  N/A  
 HORN  WHITE (-)  @ HORN SWITCH in Column Cover.
 TACH  WHITE  IN PIN 5, TOP CONNECTOR @ ECM, BEHIND GLOVEBOX
 WAIT TO START LIGHT  N/A  
 BRAKE  GRAY (+)  @ SWITCH ABOVE BRAKE PEDAL
 FACTORY ALARM DISARM   DISARMS with KEYSENSE wire, See NOTE *4  @ IGNITION SWITCH HARNESS
 ANTI-THEFT  TRANSPONDER ANTI-THEFT SYSTEM, REQUIRES 791 BYPASS MODULE AND EXTRA IGNITION KEY  TRANSPONDER @ IGNITION SWITCH TUMBLER
 EXTRA INFORMATION
 NOTE *1 WHEN INSTALLTING A REMOTE STARTER, YOU MUST USE BOTH STARTER #1 AND #2 WIRES, CONNECT BOTH TO THE STARTER/CRANK WIRE FROM THE REMOTE START. NOTE *2 METER THRESE WIRES WHILE TURNING KEY IN THE DRIVERS DOOR KEY CYLINDER.UNLOCK REQUIRES A DOUBLE PULSE. NOTE *3 THE DRIVERS DOOR TRIGGER IS BLUE (-) PIN 14,IN CONNECTOR B6 AT THE BECU.THE PASSENGER DOOR IS BLUE (-) PIN 23,CONNECTOR B5 AT THE BECU.THE RIGHT REAR DOOR IS GRAY (-) PIN 16,CONNECTOR B6 AT THE BECU.THE LEFT REAR DOOR IS BLACK (-) PIN 7,IN A 13 PIN PLUG ON THE RIGHT SIDE OF THE FUSEBOX.WHEN CONNECTING TO AN ALARM SYSTEM, USE ALL 4 WIRES AND DIODE ISOLATE. SEE DIAGRAM. THE BECU IS ATTACHED TO THE BACK OF THE FUSEBOX UNDER THE DRIVERS SIDE DASH. NOTE *4 the vehicle can be disarmed without unlocking by attaching a (-) Negative output wire to the BLACK (-) KEYSENSE wire in the IGNITION SWITCH HARNESS.


 
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