The Viper 5901 remote start and security alarm is a great product, it was fairly easy to install and has a ton of configurable settings and features. There are some things that could use improvement though. I wish the car would send a signal to the remote if the engine started successfully, not just if it got the command to start or if it.. First and foremost, the alarm system (Viper 5901 LC3) is a 2 way alarm. Basically, all it means is that the vehicle's alarm system and the remote can talk to each other. Someone tampers with your vehicle and if you are in the house, the thing vibrates and beeps and tells you that someone is tampering with your vehicle.
![[DIAGRAM] Viper 5901 Installation Diagram](http://i1000.photobucket.com/albums/af121/awer26/IgnitionHarness3.gif "[DIAGRAM] Viper 5901 Installation Diagram")
2-way remote.46 Programming options.47. Summary of Contents for Viper 5901. Page 1 Responder LC Model 5901 Security and Remote Start Installation Guide This product is intended for installation by a professional installer only! Attempts to install this product by a person other than a trained professional may result in severe damage to a vehicle's electrical system and components.