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Car Alarm and Remote Car Starter Wiring Diagram – 2001 Lexus IS300


Whether your an expert installer or a novice enthusiast with a 2001 Lexus IS300, an automotive wiring diagram can save yourself time and headaches. One of the most time consuming tasks with installing a car alarm, remote car starter, car security system or any mobile electronics is identifying the correct wires for a 2001 Lexus IS300.

The Modified Life staff has put their heads together to create an invaluable resource containing car alarm wiring diagram, remote car starter wiring diagram, car wiring diagram and car security wiring diagram. Feel free to use any car alarm wiring diagram or remote car starter 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. 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 2001 Lexus IS300.

If you can’t find your car alarm wiring diagram or remote start wire diagram on Modified Life, please feel free to post a car wiring diagram request (Car Alarm Wiring Diagram Request Page) and we’ll do our best to find you the information you need for your mobile installation.

2001 Lexus IS300 Car Alarm and Remote Car Starter Wiring Information

Constant 12V+ Wire: White & White/Red
Constant 12V+ Wire Location: Ignition Switch Harness

Starter Wire (+): Black/White
Starter Wire Location: Ignition Switch Harness

Second Starter Wire (+): N/A
Start Wire Location: N/A

Ignition Wire (+): Black/Red
Ignition Wire Location: Ignition Switch Harness

Second Ignition Wire: Blue/Red
Second Ignition Wire Location: Ignition Switch Harness

Accessory Wire: Red
Accessory Wire Location: Ignition Switch Harness

Second Accessory Wire: N/A
Accessory Wire Location: N/A

Tachometer Wire: Black
Tachometer Wire Location: Igniter (The igniter is on the driver side strut tower.)

Door Lock Wire (-): N/A
Door Lock Wire Location: N/A

Door Unlock Wire (-): N/A
Door Unlock Wire Location: N/A

Door Trigger Wire (+): The driver door trigger is red/green, front passenger door is red/black, rear doors is red/white.
Door Trigger Wire Location: Body ECU (The body ECU is attach to the top of the fuse box.)

Dome Supervision Wire: Use Door Trigger
Dome Supervision Wire Location: N/A

Headlights Wire (-): Red/Blue
Headlights Wire Location: Headlight Switch

Parking Light Positive Wire (+): Green
Parking Light Positive Wire Location: Drivers Kick Panel

Parking Light Negative Wire (-): Red
Parking Light Negative Wire Location: Headlight Switch

Trunk/Hatch Pin Wire (-): Red/Yellow
Trunk/Hatch Pin Wire Location: Driver Kick Panel

Hood Pin Wire (-): Blue
Hood Pin Wire Location: Alarm Module (The alarm module is above the drivers kick panel.)

Trunk/Hatch Release Wire (-): Blue/White
Trunk/Hatch Release Wire Location: body ECU (The body ECU is attach to the top of the fuse box.)

Factory Alarm Arm Wire: Arms with Lock
Factory Alarm Arm Wire Location: N/A

Factory Alarm Disarm Wire (-): Unarms with Unlock
Factory Alarm Disarm Wire Location: N/A

Factory Alarm Disarm but No Unlock Wire (-): Black/Yellow (This is the ignition key sense wire. Using the status output wire from the remote start to groundThis wire will disarm the alarm without unlocking the doors.)
Factory Alarm Disarm Wire Location: Steering Column

Horn Trigger Wire (+): Green/White
Horn Trigger Wire Location: Steering Column

Brake Wire (+): Green/White
Brake Wire Location: Brake Pedal Switch

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