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How-To's / DIY Installing a $25 Keyless Entry System
« on: January 15, 2008, 12:26:07 AM »
I installed a keyless entry device in the trunk as described above. It worked great. However, I found that I could no longer deadbolt my trunk using the trunk lock. When I deadbolt my trunk, the trunk lock would keep the "lock" wire (green/black) grounded. The central lock controller would then ignore any input from both the "lock" and "unlock" wire coming from the trunk. That means the keyless remote can no longer lock/unlock the doors/trunk. (It still accept inputs from the lock/unlock wires from the doors. Thus central lock still works if you use the key on the doors.)
My solution is to permanently cut the trunk "lock" wire from the trunk lock. The cut is made between the point where I tapped into it and the point where it connects to the trunk lock. (i.e. after the cut, the trunk "lock" wire is then only connected to the output of my keyless entry device). I did not have to cut the "unlock" wire.
I can now deadbolt my trunk and can use my remote to lock and unlock my doors. If my trunk is not deadbolted, then the remote will lock/unlock my the doors as well as the trunk.
Note: only do this if at least one of your doors can be locked/unlocked with the key, that way you know you can still lock/unlock your car with the key when your remote stops working.
My solution is to permanently cut the trunk "lock" wire from the trunk lock. The cut is made between the point where I tapped into it and the point where it connects to the trunk lock. (i.e. after the cut, the trunk "lock" wire is then only connected to the output of my keyless entry device). I did not have to cut the "unlock" wire.
I can now deadbolt my trunk and can use my remote to lock and unlock my doors. If my trunk is not deadbolted, then the remote will lock/unlock my the doors as well as the trunk.
Note: only do this if at least one of your doors can be locked/unlocked with the key, that way you know you can still lock/unlock your car with the key when your remote stops working.