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2004 Toyota Corolla Automotive Alarm Wiring Diagram

2004 Toyota Corolla Alarm Wires

Find the right alarm wire colors, locations, and polarity with this 2004 Toyota Corolla alarm wiring diagram. This will help you install your car alarm wiring correctly.

Application Wire Color and Location
Battery Constant Power 12v+ Wire (+) White
Battery Constant Power 12v+ Wire Location At Ignition Switch Harness
Ignition Wire (+) Black/White
Ignition Wire Location At Ignition Switch Harness
Second Ignition Wire (+) Black/Yellow
Second Ignition Wire Location At the Ignition Switch Harness. There are (2) blue/red wires (+) in the ignition harness. The correct ignition wire is the heavier gauge wire and it has one silver hash mark. The wrong wire has (2) silver hash marks.
Accessory Wire (+) Blue/Red
Accessory Wire Location At Ignition Switch Harness
Second Accessory Wire (+) N/A
Second Accessory Wire Location N/A
Starter Wire (+) Red
Starter Wire Location At Ignition Switch Harness
Second Starter Wire (+) N/A
Second Starter Wire Location At Ignition Switch Harness
Ground Wire Chassis

2004 Toyota Corolla Alarm Sensor Wires

Find the right alarm sensor wire colors, locations, and polarity with this 2004 Toyota Corolla alarm sensor wire chart. This will help you connect all your car alarm sensors correctly.

Application Wire Color and Location
Brake Light Wire (+) Green/White
Brake Light Wire Location At Switch Above Brake Pedal
Dome Light Supervision Wire Red/White (Requires Relay)
Dome Light Supervision Wire Location In Driver Kick Panel
Door Trigger Wire (+) Red/White
Door Trigger Wire Location At Interior Door Switch on Dash. For the door pin trigger on a 2004 model, use the red (-) wire at front of the fuse box (10-pin plug).
Hood Pin Switch Wire (-) N/A
Hood Pin Switch Wire Location N/A
Horn Wire (-) Green/Yellow
Horn Wire Location At the steering column wire harness.
Key Sense Wire (+) Blue/Black
Key Sense Wire Location At Ignition Switch Harness
Parking Light Wire (-) Green/White
Parking Light Wire Location At Headlight Switch
Power Door Lock Wire (-) Blue/White
Power Door Lock Wire Location At White Plug in the driver kick panel.
Power Door Unlock Wire (-) Blue
Power Door Unlock Wire Location At White Plug in the driver kick panel.
Tachometer Wire (-) Black
Tachometer Wire Location At ECM module behind the glove box.
Trunk Pin Switch Wire (-) N/A
Trunk Pin Switch Wire Location N/A
Trunk Release Wire (+) N/A
Trunk Release Wire Location N/A
Wait to Start Light Wire (-) N/A
Wait to Start Light Wire Location N/A
Factory Alarm Arm Wire (-) N/A
Factory Alarm Arm Wire Location N/A
Factory Alarm Disarm Wire (-) Disarms with the Key Sense Wire.
Factory Alarm Disarm Wire Location At Ignition Switch Harness
Factory Anti-Theft System Toyota Transponder Anti-Theft System
Factory Anti-Theft System Location Transponder at Ignition Switch Tumbler
Factory Immobilizer Bypass Requires Immobilizer Bypass Module

Feel free to use any 2004 Toyota Corolla alarm wiring diagram that is listed here but keep in mind that all information here is provided as is without any warranty of any kind. Use of this 2004 Toyota Corolla car alarm wire chart is at your own risk. Always verify all wires, wire colors and connection points before applying any information found here to your 2004 Toyota Corolla.

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2 thoughts on “2004 Toyota Corolla Automotive Alarm Wiring Diagram”

  1. Tan, you do not need a relay to double pulse your 2004 Toyota 4Runner door locks. Simple wire you the lock and unlock wires then program your DEI remote starter to send out a double pulse. Your DEI remote starter installation manual should have instructions on how to set up a double pulse output on your door lock system. Hope this helps. Good luck with your 2004 Toyota Corolla remote start installation.

  2. i need help for door lock and unlock 2004 toyota 4runner. i found the wires they are blue and green. however it is negative wire how can i connect double pulse relay from my DEI remote starter i never done this before. please show me the wire diagram of relay because right now it is not 12volt when i measure. thank you

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