Datsun 240Z Power Door Locks
Updating your 240Z with power door locks is a fairly easy task and updates your Z with keyless entry. With the new paint job, no-way-in-hell was I going to get near it with a sharp key. I bought a remote door lock kit that included a controller and remotes. (Black Dragon Automotive, 94-403). I have since found the same (similar?) Door Lock Mechanism from All Electronics for $5.50 USD each). The difference between the Black Dragon locks and these is: these locks are ONLY lock actuators. The Black Dragon setup comes with a wireless controller, fobs and extra wires on the drivers-side door lock actuator (see photo below) – to allow the driver to lock/unlock both doors by working the door lock button on the drivers side – and this will also neatly unlock both doors when a key is used (Drivers side only). Afterwords I noticed my Viper Alarm had a door lock and unlock output signal. (so I did not need all the rest of the Black Dragon kit, and I could have used the $5.50 actuators!). instead I built a small relay board (image at right) to apply power one direction to lock and reverse the polarity to unlock. (schematic and board design below) Mounting the door lock actuator was straightforward, though there was a little interference on the drivers side, so I did need to grind a bit of the metal bracket that holds the window.