To convince the transmission control module that a working automatic was still installed and clear the fourteen-odd diagnostic codes, [Dean] put together a block of eight common automotive relays.

Most cars have an easily accessible fuse box under the hood or inside the cabin. Inside, you’ll find relays that control key systems—like the ignition or fuel injection. If you remove the right relay, ...

One popular method used by car thieves is the "relay attack." However, using a piece of foil can thwart the criminals. The "relay attack" method has become common in many countries like the United ...

Instead, his coil uses a relay in place of a spark gap. [Teodor] built his coil using leftover components from his old school, making good use of some parts that might have otherwise been thrown away.