Main Relays
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Important: To get started, select your vehicle on the left and then use the filters to narrow your options.
What is a main relay?
A main relay is an electrical component that helps to control current flow in a circuit. It is typically used in automotive applications to help regulate higher-current components such as headlights and fuel pumps.
What is the purpose of a main relay?
The purpose of a main relay is to provide a controlled current flow to other electrical components in the vehicle. It helps to ensure that the current is not too high, which can cause damage to the components.
How can I tell if my main relay is faulty?
If your main relay is faulty, you may experience issues such as headlights not turning on, or a vehicle not starting. You may also hear clicking or buzzing noises coming from the relay.
Can a faulty main relay cause damage?
Yes, a faulty main relay can cause damage to other electrical components in your vehicle. It can also cause the vehicle to not start, or to experience other electrical issues.
How do I replace a main relay?
Replacing a main relay is a relatively simple process:
- Disconnect the negative battery terminal.
- Remove the old main relay from its mounting location.
- Connect the new main relay to its mounting location.
- Connect the negative battery terminal.
- Test the new main relay to ensure it is functioning properly.