Whether your an expert installer or a novice enthusiast with a 2005 Scion xB, 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 2005 Scion xB.

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 2005 Scion xB.

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.

2005 Scion xB Car Alarm and Remote Car Starter Wiring Information

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

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

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

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

Second Ignition Wire: Black/Yellow
Second Ignition Wire Location: Ignition Switch Harness

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

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

Key Sense Wire: Yellow
Key Sense Location: Ignition Switch Harness

Tachometer Wire: Black
Tachometer Wire Location: Data link connector below fuse box, pin 9.

Door Lock Wire (-): Blue/White
Door Lock Wire Location: Driver kick panel, 14 pin plug. Meter this wire while turning the key in the driver door key cylinder.

Door Unlock Wire (-): Yellow/Black (double pulse)
Door Unlock Wire Location: Driver kick panel, 14 pin plug. Meter this wire while turning the key in the driver door key cylinder.

Door Trigger Wire (-): Red/White
Door Trigger Wire Location: Top of fuse box, 9 pin plug.

Dome Supervision Wire: Use door trigger wire.
Dome Supervision Wire Location: N/A

Headlights Wire (-): N/A
Headlights Wire Location: N/A

Parking Light Positive Wire (+): Green
Parking Light Positive Wire Location: Parking Light Switch or top of the fuse box in a 13 pin plug.

Parking Light Negative Wire (-): N/A
Parking Light Negative Wire Location: N/A

Trunk/Hatch Pin Wire (-): Common with door trigger wire.
Trunk/Hatch Pin Wire Location: N/A

Hood Pin Wire (-): N/A
Hood Pin Wire Location: N/A

Trunk/Hatch Release Wire (-): Brown/Yellow
Trunk/Hatch Release Wire Location: Driver kick panel, harness to rear. Meter this wire while opening the hatch from the handle on the rear hatch. The hatch release motor wire is blue/yellow (+) in the driver kick, harness to rear.

Factory Alarm Arm Wire: N/A
Factory Alarm Arm Wire Location: N/A

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

Factory Alarm Disarm but No Unlock Wire (-): N/A
Factory Alarm Disarm Wire Location: N/A

Horn Trigger Wire (-): White/Red
Horn Trigger Wire Location: Horn Switch in steering column.

Brake Wire (+): Green/Red
Brake Wire Location: Brake pedal switch or top of the fuse box in a 13 pin plug.

Emergency Parking Brake Wire (+): Black
Emergency Parking Brake Wire Location: Parking Brake Switch

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