car wire fire the 12v source
12 Volt Housings

 
12 volt
car stereo
car security
 
 

 

 


Car Security

4 Wire Door Locks

This application is found in few vehicles which include older 1980's models. The lock/unlock harness will consist of four wires used to lock and unlock the doors.

4 Wire Reversal Door Locks

One wire has (+)12v constant. One wire has constant (-) ground. One wire reads nothing at rest and (+)12v at lock and (-) ground on unlock. One wire reads nothing at rest and (-) ground during lock and (+)12v during unlock.

4-wire-reversal-door-locks

 

 

 

 

 

 

 

 


 

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