Whether your an expert Toyota car alarm installer, Toyota performance fan or a novice Toyota enthusiast with a 2003 Toyota Camry, a Toyota 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 2003 Toyota Camry.

The Modified Life staff has taken all its Toyota car alarm wiring diagrams, Toyota car security wiring diagrams, Toyota car alarm wire diagrams, Toyota car security wiring schematics, Toyota car security diagrams, Toyota 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 Toyota 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 2003 Toyota Camry.

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

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 2003 Toyota Camry on this page.

2003 Toyota Camry Car Alarm Wiring Diagram

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

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

Second Ignition Positive Wire (+): Black/Yellow
Second Ignition Positive Wire Location: Ignition Switch Harness

Accessory Positive Wire (+): Blue/Red
Accessory Positive Wire Location: Ignition Switch Harness

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

Second Starter Positive Wire (+): Black/Yellow
Second Starter Positive Wire Location: Ignition Switch Harness

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

Tachometer Wire Negative Wire (-): Black/Orange
Tachometer Wire Negative Wire Location: At ECM, Pin 31 on connector 5.

Parking Light Positive Wire (+): Green
Parking Light Positive Wire Location: At dimmer switch.

Door Trigger Negative Wire (-): Red/Black
Door Trigger Negative Wire Location: At ECU.

Trunk Trigger Negative Wire (-): Green
Trunk Trigger Negative Wire Location: 12 Pin connector inside driver kick panel.

Hood Trigger Negative Wire (-): Black
Hood Trigger Negative Wire Location: At anti theft module.

Factory Alarm Disarm Wire (-): Blue
Factory Alarm Disarm Wire Location: White 20 pin connector inside driver kick panel.

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

Factory Alarm Arm Wire: Blue/Yellow
Factory Alarm Arm Wire Location: Blue 20 pin connector inside driver kick panel.

Door Lock Wire: Blue/Yellow
Door Lock Wire Location: Harness in driver kick panel.

Door Unlock Wire: Blue (requires double pulse)
Door Unlock Wire Location: Harness in driver kick panel.

Headlights Wire (-): Red/Yellow
Headlights Wire Location: Ignition Switch Harness

Dome Supervision Wire: N/A
Dome Supervision Wire Location: N/A

Neutral Safety Wire: N/A
Neutral Safety Wire Location: N/A

Speed Sense Wire: Violet/White
Speed Sense Wire Location: N/A

Brake Light Wire (+): Green/White
Brake Light Wire Location: At brake switch above the brake pedal.

Horn Negative Wire (-): Green/Black
Horn Negative Wire Location: Steering Column

ECM Module Location: Behind the glove box.
BCM Module Location: Under the drivers dash near the fuse box.

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