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TDR Application 9: Timed Keyless Ignition

Eliminate keys and use a simple start button to start your vehicle

Status: Units are built to order - Please expect up to 2-week delay after receipt of order until order is shipped


One way to make your vehicle more distinctive is to eliminate your keyed ignition switch altogether, and use a simple start button to start your car. You can do this without compromising security by using an inexpensive keyless entry system to enable the start button for an time period adjustable up to 2 minutes. A WolstenTech Time-Delay Relay, connected between the keyless entry system and the start button, or to the ground side of the starting relay, will accomplish this feat.

Note that these diagrams don't account for ignition power, which would have to be controlled by a separate on-off switch.


Example 1: Timed Keyless Ignition using TDR-M

Timed Keyless Ignition Diagram


Example 2: Timed Keyless Ignition using TDR-PM

Timed Keyless Ignition Diagram



Item Added!
Positive-Switching Momentary Time-Delay Relay (TDR-PM)
Price: $32
Item Added!
Negative-Switching Momentary Time-Delay Relay (TDR-M)
Price: $32