What Does A Starter Relay Do In A Car

You need to be watchful and monitor the relays on a regular basis to avoid sudden breakdown.

What does a starter relay do in a car. A car solenoid is an important part of the starter and works as a kind of bridge for electric power to travel from the battery to the starter. As stated above electronic keys do not have a manual ignition switch. The starter relay is designed to redirect power from the battery to the starter solenoid which then activates the starter to spin over the engine. A failed starter relay means the car may not start at all.

Like most other motorized or powerful electric devices on your car the starter doesn t draw its power directly from the switch used to trigger it. Instead the ignition switch triggers a sort of secondary switch known as a relay or in the case of a starter the solenoid. This causes the starter solenoid to close a pair of heavy contacts thus relaying a large electric current through the starter motor which in. But when it does some bad starter relay symptoms will make you aware of the problem.

However when powered it should send a signal to the starter relay once the key is turned or the starter button is pressed. The most obvious warning sign that a problem with the starter relay exists is when the vehicle won t start when you engage the ignition process. An idle starter solenoid can receive a large electric current from the car battery and a small electric current from the ignition switch. When the ignition switch is turned on a small electric current is sent through the starter solenoid.