Whether your an expert Lexus RX330 car alarm installer, Lexus RX330 performance fan or a novice Lexus RX330 enthusiast with a 2004 Lexus RX330, a Lexus RX330 car alarm wiring diagram can save yourself a lot of time. One of the most time consuming tasks with installing an after market car alarm, car security, car remote start, automatic remote starter, shock sensor, tilt sensor, car alarm sensor or any auto alarm is identifying the correct color car security wires for a 2004 Lexus RX330.

The Modified Life staff has taken all its Lexus RX330 car alarm wiring diagrams, Lexus RX330 car security wiring diagrams, Lexus RX330 car alarm wire diagrams, Lexus RX330 car security wiring schematics, Lexus RX330 car security diagrams, Lexus RX330 remote starter wiring diagrams and cataloged them online for our visitors to use for free. Our automotive wiring diagrams allow you to enjoy your new auto security electronics rather than spend countless hours trying to figure out which wires goes where.

Feel free to use any Lexus RX330 auto alarm wiring diagram that is listed on Modified Life but keep in mind that all information here is provided as-is without any warranty of any kind and most of the auto security wiring diagrams listed on our enthusiast website are submitted by the Modified Life community. Use of the wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 2004 Lexus RX330.

Questions

If you have any questions pertaining to the car wiring in a 2004 Lexus RX330, please feel free to post it at the bottom of this page and either we will do our best to find you the information you need or hopefully someone in the Modified Life community will have the information you are looking for.

Request a Car Alarm Wiring Diagram

If you can not find your car alarm wiring, car security wire diagram or auto alarm wire diagram on Modified Life, please feel free to post a car alarm wiring diagram request on this page and we will do our best to find you the diagram, schematic or information you need for your mobile security installation.

Adding More Information

If you would like to help the Modified Life community by adding a car security wire schematic, car alarm wire diagram, car remote starter wire diagram, auto remote starter wire diagram or auto security wire diagram to our resource, please feel free to post any additional car wiring information about the 2004 Lexus RX330 on this page.

2004 Lexus RX330 Car Alarm Installation Diagram

Battery Constant 12v+ Positive Wire (+): Red
Battery Constant 12v+ Positive Wire Location: Ignition Switch Harness

Starter Positive Wire (+): Blue (When installing a remote starter, you must use both starter #1 and #2 wires, connect both to the starter/crank wire from the remote start.)
Starter Positive Wire Location: Ignition Switch Harness

Second Starter Positive Wire (+): White (When installing a remote starter, you must use both starter #1 and #2 wires, connect both to the starter/crank wire from the remote start.)
Second Starter Positive Wire Location: Ignition Switch Harness

Ignition Positive Wire (+): Purple
Ignition Positive Wire Location: Ignition Switch Harness

Second Ignition Positive Wire (+): Green
Second Ignition Positive Wire Location: Ignition Switch Harness

Third Ignition Positive Wire (+): N/A
Third Ignition Positive Wire Location: N/A

Accessory Positive Wire (+): Gray
Accessory Positive Wire Location: Ignition Switch Harness

Second Accessory Positive Wire (+): N/A
Second Accessory Positive Wire Location: N/A

Key Sense Wire: Black (-)
Key Sense Wire Location: Ignition Switch Harness

Parking Light Negative Wire (-): Orange
Parking Light Negative Wire Location: At Headlight Switch

Parking Light Positive Wire (+): Light Green
Parking Light Positive Wire Location: In Drivers Kick Panel, Harness To Rear Of Vehicle

Power Door Lock Negative Wire (-): Brown (Meter these wires while turning key in the drivers door key cylinder. Unlock requires a double pulse.)
Power Door Lock Negative Wire Location: At Module Inside Drivers Door

Power Door Unlock Negative Wire (-): Gray (Requires Double Pulse)
Power Door Unlock Negative Wire Location: At Module Inside Drivers Door

Door Trigger Negative Wire (-): The drivers door trigger is blue (-) pin 14 in connector B6 at the BECU module. The passenger door is blue (-) pin 23, connector B5 at the BECU module. The right rear door is gray (-) pin 16, connector B6 at the BECU module. The left rear door is black (-) pin 7,in the 13 pin plug on the right side of the fuse box. When connecting to an alarm system, use all 4 wires and diode isolate.
Door Trigger Negative Wire Location: At ECU Module. The BECU module is attached to the back of the fuse box under the drivers side dash.

Dome Light Supervision Wire (-): Light Blue (Requires Relay)
Dome Light Supervision Wire Location: In 12 Pin Plug Right Of Fuse Box

Trunk Release Negative Wire (-): Purple (Requires Relay)
Trunk Release Negative Wire Location: At Hatch Release Switch

Sliding Power Door Wire: N/A
Sliding Power Door Wire Location: N/A

Horn Negative Wire (-): White
Horn Negative Wire Location: At Horn Switch In Column Cover.

Tachometer Wire Negative Wire (-): White
Tachometer Wire Negative Wire Location: In Pin 5, Top Connector At ECM, Behind Glove Box

Wait To Start Wire: N/A
Wait To Start Location: N/A

Brake Light Positive Wire (+): Gray
Brake Light Positive Wire Location: At Switch Above Brake Pedal

Factory Alarm Disarm Wire (-): Disarms With Key Sense Wire. The vehicle can be disarmed without unlocking by attaching a (-) negative output wire to the black (-) key sense wire in the ignition switch harness.
Factory Alarm Disarm Wire Location: At Ignition Switch Harness

Factory Anti-Theft System: Transponder Anti-Theft System, Requires Bypass Module And Extra Ignition Key
Factory Anti-Theft System Location: Transponder At Ignition Switch Tumbler

The 2004 Lexus RX330 alarm wire color and location information above is updated as it is submitted by the Modified Life community.

Make Your Car Alarm Installation Easy with these Tools and Accessories
Save Up to 60% Off Car Alarms and Auto Security