The starting relay is the most important and neglected part of the car ignition system.Its function is to redirect the power supply from the battery to the starting mechatronic magnetic valve, and then open the starting machine to idle the engine.Only when the relay is working properly can you switch the vehicle on and off normally.

Although you may not encounter the problem of relay at present, it is a part that is related to whether your car can run or not. Once it is worn, please contact professional maintenance personnel to replace it in time for your driving safety.

Notably, most modern cars are equipped with electronic ignition switches that are activated by remote controls.The electronic chip of the remote control key is connected to the kinetic energy in the car, allowing you to achieve the effect of remote start.Sometimes, however, the remote control key can affect the relay and send the wrong message.

Some of the symptoms of relay damage or wear are listed below.If you notice these similar symptoms, make sure you contact your local professional technician to thoroughly inspect your vehicle, as these symptoms may indicate problems with other components as well.

Vehicle cannot start

One of the most obvious symptoms is that when you fire up the car, it doesn't start, which means your relays are out of order.The electronic key does not have a manual ignition switch.It works by sending a signal to a relay once the key is plugged in or a start button is pressed.

If you cannot start the vehicle with a key or an electronic key, the chances are that the relay will fail.

Once this happens, no matter how many times you try, you will not start the car. When the circuit is not completely broken, you will hear a clicking sound when you start the car, but no matter what happens to the circuit, you need to make timely repairs to ensure the safety of driving.

When the engine is started, the starting relay remains connected

Normally, when you start the engine and release the key or press the start button to start the car.A circuit of the starting relay that closes and interrupts the power supply of the starting relay.

But when you start the engine, the starting relay remains connected, which means that the main contacts of the starting relay are likely to be welded together in a closed position.

If the contact of the starting relay is kept in the connected state for a long time, damage will be caused to the starting machine, the circuit, the relay and the flywheel of the transmission. In order to stop the loss in time, it is necessary to replace it as soon as possible.

Intermittent problem of starting relay

The starter relay works normally and will supply power to the starter at each junction.However, the starter relay may be damaged due to overheating, dust and debris or a range of other problems.

Typically, when you can't start the car the first time, try again and start it again.This is also the starting relay damage performance.

Most intermittent start failures are associated with poor contact wire connections that get dirty under the hood.

The starter makes abnormal noise

Generally, this phenomenon is very common when the battery current is low, but it is also a sign that the starting relay does not send a complete signal.Relay does not exist in a state of ups and downs, once unable to send a signal, it means that the start of the relay damage.

And the performance of the broken start relay is that when you try to start, there will be abnormal noise.

conclusion

Generally speaking, the starting relay is a very durable component, and a car may not need to be replaced for a long time. However, once the above related phenomena are found, please be sure to timely check and replace.