How to judge the quality of the reversing light switch

When there is no fault with the reversing lights and wiring, after the reverse gear is hung, the rear reversing light is not lit or the reversing light is also always on, and the reversing switch can be judged to be broken. The premise is that the car has electricity.

Unplug the reversing switch plug, connect the two sockets of the reversing switch on the car with connecting wires, if the reversing light is on, it means that the switch has been damaged.

There are two types of reversing light switches: normally open and normally closed, and the on/off is measured with a multimeter. Put the vehicle into reverse gear, and if the reversing lights are on, it's good. Or check the reversing light switch and measure it with a meter.

Driving in reverse is more difficult than driving forward, mainly because the line of sight is somewhat limited.

Remove the wire plug of the reversing light switch, connect the two wires together, open the key to see if it is on, or remove it and measure it with a multimeter!

Regarding the landlord's concern about "what is the performance of the reversing light switch is broken?" "Here's my personal opinion:

The performance of the reversing light switch is definitely the loss of the reversing light can not be lit up normally, and the reason for the bad reversing light switch is:

1. The front circuit or rear circuit of the reversing switch is caused by the phenomenon of open circuit (hereinafter referred to as the switch);

2. Or the reversing light switch itself is damaged; It could also be because the bulb of the reversing light is damaged;

3. Open the right lining plate of the trunk, test the line, open the fuse box, and use a multimeter to check the situation of the reversing-related fuse.

The performance of a broken reversing light switch is that the reversing light often lights on, or it does not light up, which may be caused by poor contact of the switch, or it may be caused by poor contact of the line game rushing road. The reasons for the bad reversing light switch are:

1. The front circuit or rear circuit of the reversing switch is caused by the phenomenon of open circuit (hereinafter referred to as the switch); Divine filial piety.

2. Or the reversing light switch itself is damaged; It could also be because the bulb of the reversing light is damaged;

3. Open the right lining plate of the trunk, test the circuit, open the fuse box, and check the reversing-related fuse with a multimeter.

The reversing light switch is often pressed so it is easy to break

1. Because when reversing, the line of sight on the driver's side is almost not affected, and the brake light and the wide-sight light can basically be observed clearly, but the line of sight on the co-pilot's side is not very good, and the white light of the reversing light needs to help improve the field;

2. Setting a reversing light will make it easier to attract the attention of the rear driver and prevent confusion with the brake light;

3. There are differences in different models and gears, especially most of the economic compact cars are only rented with a spine.

This situation should be caused by a short circuit in the line, it is recommended that you check the rear tail light reversing light bulb and its wiring for problems:

1. The working principle of the reversing light switch is a normally open switch (often disconnected), when the reversing light switch is hung in reverse gear, the mechanical mechanism will press down the contact of the switch, close the circuit, and the reverse light will be lit and the reverse gear prompt sound will sound. When the reverse gear is disengaged, the switch contact bounces up, and the reverse gear light circuit becomes open again;

2. The reversing light switch of the tractor is generally installed on the transmission, and the reversing light switch is triggered by the pit on the transmission lever. When working, due to the continuous high temperature of the transmission, the insulating rubber inside the switch is easy to age and fail, and the capacity of the switch is small;

3. Under normal circumstances, when the two headlights and the reversing buzzer at the rear of the tractor work at the same time, the current through the switch can reach 7A, and the contact is easy to produce electric sparks and burn out at high temperatures. The service life of the original reversing light switch is only one month, and due to the narrow space of the installation position, it is inconvenient to replace it, and it is time-consuming and labor-intensive.

The reversing lights are often on, or they don't come on

The performance of the broken reversing light switch is that the reversing light is often lit or not lit, which may be caused by poor contact of the switch, positive or poor line contact. The following are the reasons for the bad switch of the reversing light: 1. Short circuit:

It is caused by a short circuit in the front circuit or rear circuit of the reversing switch. 2. Reversing light: or the reversing light switch itself is damaged; There is also a can shed Kai can be damaged because of the bulb of the reversing light.

The frequency of use of the switch is very high and high, and it is inevitable that it will be broken when pressed back and forth for a long time, and the copper sheet inside is thin, aging, rusty, desoldering of the terminal, and the spring buckle is broken, and so on will lead to poor contact, and the switch does not respond.

If the reversing light switch is broken, you should go to the nearby Weimu socks repair shop as soon as possible to avoid potential safety hazards when driving. The reasons for the bad reversing light switch are:

1. The front circuit or rear circuit of the reversing switch is caused by the phenomenon of open circuit (hereinafter referred to as the switch);

2. Or the reversing light switch itself is damaged; It could also be because the bulb of the reversing light is damaged;

3. Open the right lining plate of the backup box, test the line, open the fuse box, and check the reversing-related fuse with a multimeter.