Key-Less Electronic Ignition Systems

Key-Less Electronic Ignition Systems

There are two (2) types of keyless electronic ignition systems. The direct contact (plug-in) electronic ignition system or the proximity electronic ignition system.

The electronic direct contact (plug-in) key fob must be physically inserted into an electronic ignition lock module. Depending on the type of electronic ignition system, the electronic key fob may need to be rotated to start the vehicle engine. The ignition lock module can be located in the dashboard adjacent to the steering column, located in the steering column, or located in the left lower dashboard area.

The electronic proximity key fob does not need to be inserted into an electronic ignition lock module. The key fob can be left inside a purse, left inside your pants pocket, or set inside the vehicle.

The Electronic “Keyless” Systems are offered by some manufacturers as an option or as package upgrade on selected models. The vehicle key can be obtained and inspected to identify which system is present and/or the VIN can be provided to a dealer to obtain specific vehicle options or upgrades.

Most vehicles have a “lock-out” prevention feature where the doors will not lock and there is an audible alarm if the electronic key fob is left inside the vehicle cabin.

Vehicles equipped with the “keyless” ignition systems are also equipped with a mechanical key for emergency use in the door/trunk locks. These keys are usually stored in the electronic fob case and used for emergency entry into the vehicle (dead battery).

The electronic proximity fobs are constantly read by the interior antenna/sensors. If the proximity fob is removed from the vehicle while the engine is running, a “no fob detected” type message will illuminate in the instrument cluster, but the engine will continue to run. Once the engine is turned “off”, it will not start again without the proximity fob being physically present.