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2003 Nissan Altima Car Security Wire Chart

2003 Nissan Altima Alarm Wires

Find the right alarm wire colors, locations, and polarity with this 2003 Nissan Altima alarm wiring diagram. This will help you install your car alarm wiring correctly.

Application Wire Color and Location
Battery Constant 12V+ Wire Green
Battery Constant 12V+ Wire Location Ignition Switch Harness
Starter Wire (+) Black/Red
Starter Wire Location Ignition Switch Harness
Second Starter Wire (+) Black/Yellow
Second Start Wire Location Ignition Switch Harness
Ignition Wire (+) Black/Red
Ignition Wire Location Ignition Switch Harness
Second Ignition Wire N/A
Second Ignition Wire Location N/A
Accessory Wire Red
Accessory Wire Location Ignition Switch Harness
Second Accessory Wire White/Blue
Second Accessory Wire Location Ignition Switch Harness
Tachometer Wire Pink or Black (Not Red)
Tachometer Wire Location Any ignition coil or fuel injector.
Key Sense Wire: Black/Red
Key Sense Location Ignition harness or BCM, pin 37.

2003 Nissan Altima Alarm Sensor Wires

Find the right alarm sensor wire colors, locations, and polarity with this 2003 Nissan Altima alarm sensor wire chart. This will help you connect all your car alarm sensors correctly.

Application Wire Color and Location
Door Lock Wire (-) Brown (These wires are only available on vehicles with left front only power window anti-pinch system. On vehicles with left AND right front power window anti-pinch system, use the factory alarm arm and disarm wires for door locks.)
Door Lock Wire Location BCM to right of fuse box, pin 45.
Door Unlock Wire (-) Pink (These wires are only available on vehicles with left front only power window anti-pinch system. On vehicles with left AND right front power window anti-pinch system, use the factory alarm arm and disarm wires for door locks.)
Door Unlock Wire Location BCM to right of fuse box, pin 46.
Door Trigger Wire (-) The LF door is light blue in pin 47, RF door is pink/blue in pin 12, LR door is red/black in pin 48, and RR door is red/white in pin 13. Use all four wires and diode isolate each.
Door Trigger Wire Location BCM to right of fuse box.
Dome Supervision Wire Red
Dome Supervision Wire Location BCM to right of fuse box, pin 63.
Headlights Wire (-) N/A
Headlights Wire Location N/A
Parking Light Positive Wire (+) Red/Blue
Parking Light Positive Wire Location Harness in the rear inside driver kick panel.
Parking Light Negative Wire (-) N/A
Parking Light Negative Wire Location N/A
Trunk/Hatch Pin Wire (-) Purple/White
Trunk/Hatch Pin Wire Location BCM to right of fuse box, pin 42.
Hood Pin Wire (-) Light Green/Black
Hood Pin Wire Location Hood pin switch under hood.
Trunk/Hatch Release Wire (-) Red/Black or Blue/Red
Trunk/Hatch Release Wire Location BCM to right of fuse box, pin 30.
Factory Alarm Arm Wire Pink/Blue
Factory Alarm Arm Wire Location Driver door module in door, pin 4. (Meter this wire while turning the key in the driver door key cylinder. This wire will also lock the doors. On vehicles with left front only power window anti-pinch system, this wire is found at the BCM to the right of the fuse box, pin 8.)
Factory Alarm Disarm Wire (-) White/Blue
Factory Alarm Disarm Wire Location Driver door module in door, pin 5. (Meter this wire while turning the key in the driver door key cylinder. Single pulse on this wire will disarm the factory alarm, and double pulse will unlock the doors. On vehicles with left front only power window anti-pinch system, this wire is found at the BCM to the right of the fuse box, pin 7.)
Factory Alarm Disarm but No Unlock Wire (-) N/A
Factory Alarm Disarm Wire Location N/A
Horn Trigger Wire (-) Green/White
Horn Trigger Wire Location Horn Switch in Steering Column
Brake Wire (+) Red/Green
Brake Wire Location Brake Pedal Switch

Feel free to use any 2003 Nissan Altima 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 2003 Nissan Altima 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 2003 Nissan Altima.

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