About starter relay
The start relay or relay starter is part of the vehicle's starting system, which controls the battery's massive electrical supply to the starter motor. The start relay is an electrical device found within the starter motors' electrical circuit, which is operated by a small ignition switch in the dashboard and starter solenoid to start the starter motor rotation. The starter relay size is small and acts as a switch.
What is the purpose of starter relay?
The start relay purpose is to activate the high-current starter motor via an ignition switch. The start relay works as switches which draw greater current from the battery to operate the vehicle starting system.
How starter relay works?
The start relay as a switch helps by controlling other ignition components to boost the high-current from the battery to the start motor. When the ignition switch of the vehicle is turned on, the starter relay is triggered to bring high-current to the starter solenoid, which in turn drives the starter motor. The start relay is a core with a coil wound around it. The plunger which contacts the ignition circuit is attached with one end of the coil. When the current passes through the coil, the core becomes magnetized which pulls the plunger and causes the electrical circuit to be completed from the battery to the starter motor.
Where is starter relay located?
The starter relays on your vehicle are easy to locate, they are located between the battery's electrical circuit and the starter motor. The starter relay is mounted directly in the power distribution box to the starter motor. The location varies according to the vehicle's make and model.