If the relay of the car is broken, it will to the following conditions:
1.Faulty starting line: The starting line may have a break, poor contact, or loose wires.
2.Power failure: Battery power shortage, plate vulcanization causing a short circuit, poor connection in the starting power lead, etc.
3.Starter failure: Poor contact between the commutator and the brush, bad contact between the contact plate and the electromagnetic switch contact, local short circuit in the motor excitation winding or armature winding, etc.
A relay is a circuit that can control a large amount of power with a small amount of current, and it can also extend the range of control. When the signal reaches a certain value, depending on the different forms of the contact group, the relay switches, disconnects, or connects multiple circuits at the same time, achieving the purpose of automatic switching.

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