Introduction of Ignition Switch

The function of the ignition switch is to turn on or cut off the starter, ignition, and electrical circuits. The ignition switch generally has four positions: 0 or LOCK, I or ACC, II or ON, III or START. The ignition switch is the switch of the ignition system, which can freely open or close the main circuit of the ignition coil, and is also suitable for other electrical circuits. The ignition switch is commonly known as the main switch or the main key. It is the main gate that controls the entire vehicle circuit system. There are two types: plug-in type and knob type. The ignition switch is composed of a key, a key socket, and external wires, and the insertion switch is generally installed above the front of the car or at the center of the instrument panel. The ignition switch cost will be around $60 to $200.

What are the four gears of the ignition switch?

The john deere ignition switch replacement has four gears: START, ON, ACC, and LOCK.

LOCK gear is the position where the key is inserted and pulled out, at this time, the circuit of the vehicle is completely closed except for the anti-theft system and the small lights inside the car, and the steering wheel is locked.

ACC gear is power-on gear for accessories. when the key is turned to this position, the circuit for accessories will be connected, and equipment such as radios will be available.

ON gear: The entire vehicle circuit will be connected after this gear is turned on, and the system will make necessary preparations and self-inspection work for starting the engine. The key will remain in this position when the vehicle is running normally.

START gear: The starter circuit will be connected, and the engine will be driven to run and start. The key will automatically return to the ON position after letting go.

The difference between the car start switch and the ignition switch

The ignition switch is a switch on the electronic control system, which is responsible for switching off the ignition system, starting system, and various electrical appliances.

The start switch is mainly responsible for starting the vehicle. Turning the key forward is the start and ignition. After you let go of your hand, the key will automatically back, and the vehicle will start!

What are the symptoms of a bad car ignition switch?

If there is an unknown fault in the ignition switch of the vehicle and the car cannot be started, the most direct manifestation is that the ignition cannot be ignited or extinguished. There may also be an unknown flameout phenomenon, and the circuit in the car cannot be used. Sometimes the operator's long-term wrong operation method will cause the ignition switch device of the machine to fail. Before using it, you should slowly turn the key to let the electrical appliances on the equipment enter the state one by one.

1. electricity failure. The battery is severely depleted of electricity or the plate is vulcanized, short-circuited, etc. the battery pole is in poor contact with the clamp, and the connection of the starter circuit wire is loose and in poor contact, etc.

2. Starter failure. Poor contact between commutator and brush, open circuit or short circuit of excitation winding or armature winding.

3. Ignition switch failure. The wiring of the ignition switch is loose or the internal contact is poor.