The vehicle clock does not reset to zero after the car replaces the battery

1. When the ignition switch is in the ON position, do not remove the battery connection line or disconnect the main power switch.

When the ignition switch is in the ON position, most of the electrical equipment in the car is already energized, and there are many self-inductance coils in these electrical equipment. When they are suddenly de-energized, these coils generate self-induced electromotive force, resulting in high instantaneous voltages, which can damage electronic components or disrupt the electronic control system.

2. When the engine is running, do not remove the battery connection line or disconnect the main power switch.

While the engine is running, the generator is also generating electricity.

3. When the fault light on the dashboard is on, do not remove the battery connection cable or disconnect the main power switch.

1) Anti-theft system locked. Some models have an anti-theft system that automatically locks when the power is off, and even if it is reconnected to the power supply, it must be unlocked using professional equipment, and some even require the manufacturer's assistance to complete.

2) The sound system is locked. Some high-end models have very expensive audio systems, and in order to prevent theft, these speakers not only have a password, but also automatically lock when the power is off. And many car owners don't know this password, so it is a very troublesome thing for the audio system to be locked.

I accidentally removed the power cord of an Audi A6 when I first started in the industry, and the stereo was locked, and then the expert instructed me to restore it by destructive means, but the audio system had no password.

3) The central lock of the door and the one-key lifting function of the window are invalid. The central lock of some cars has the function of pressing only the driver's door once and pressing twice to open all the doors, and the window has the function of one-key lifting, which will disappear after the power is off. It will not be restored after being reconnected and must be re-mated.

4) System time is reset to zero. The clock on the car goes to zero when it loses power and must be restarted.

Therefore, the battery cannot be disassembled at will. When replacing the battery, it is best to use a spare battery to connect to the positive and negative wiring harnesses of the car before disassembling the battery. After the installation and connection of the new battery is completed, the spare battery is removed, which can ensure that the electronic control system is not powered on.

When disassembling the battery, the negative connection line should be removed first, and then the positive connection line should be removed, and the installation should be operated in reverse order. When installing, it should be noted that the positive and negative polarity of the battery must not be connected wrongly, the battery pole and the connecting wire should be firmly connected, and the iron wire should be connected reliably and without rust.

However, in some cases, the battery must be removed to protect the electronics in the car. This mainly refers to the electric welding operation on the car.

Since the electrical system of the car adopts a single-wire system, the body is the common negative pole of the electrical system. When welding and welding on the car, there will be a relatively large current passing through the body. If the resistance between the welding point and the welder's wire is too large, some of the current will pass through other electrical equipment, and this part of the current may exceed the capacity of these appliances, resulting in damage to these appliances.

In particular, some of the more sensitive electronic components are more likely to burn out. Therefore, in this case, the negative pole of the battery should be disconnected to avoid the welder from passing through the battery.

After the car replaces the battery, the vehicle clock will reset to zero and will need to be readjusted.

The clock is zero, indicating that the car has been powered, that is to say, the battery has been unloaded over the positive and negative pile head, many drivers in order to prevent theft, stop at night to unplug the battery, you ask your friends to see, whether the battery has been moved, I also want to know.

Upstairs is right. Generally, the clock on the car is battery-electric. When the connection between the positive or negative poles of the battery is removed, a broken circuit will occur.

At the same time, the power supply to the clock is cut off, and the clock will return to zero. When the power is plugged in again, the clock will start. Your friend may be afraid of the car being stolen, so he removed the battery cable when he parked the car at night, causing the clock to return to zero.

However, it is not excluded that the wires of the table have a short circuit .

The old battery is losing power, if it can't be started several times when starting, or after continuous starting, this situation may occur, I don't know if your battery is new.

Please check the insurance!!

When checking the performance of the battery, checking the circuit connection, it may be caused by power failure from time to time!

It's just a matter of schedule.

Because you can replace it with a new one.

So don't worry.

My car was mentioned in October '16, and this problem also occurred. Dashboard time is often reset to zero. Yesterday I went to the 4S shop, said that it was repaired, and it was the same problem in the afternoon.

Is there a repair, ask for it!

There is a problem with the safety or relay. There is no longer a long fire.

The main line of the instrument is not in good contact or is broken.

The computer has a system clock, abbreviated as RST, which records the time and date information of the computer. RST also occupies a place in the interrupt and address of the computer, which is a stable guarantee for the normal operation of the computer and information management.

Usually the time information of the RST clock is generated by the RST clock generator on the motherboard, and the power supply required by the clock generator is powered by the host power supply during the working period of the main machine; During the shutdown of the main engine, it is powered by a CR2032 lithium-ion battery on the motherboard, with a voltage of 3V, and the service life is generally about two years.

If the host is turned on, the time to zero is generally caused by the CMOS battery of the motherboard running out of power and cannot save time information, so you need to replace the memory battery on the motherboard. However, if it is a newly purchased machine that cannot save time, it is likely that there is a problem with the motherboard, at least there is a potential problem, and it needs to be replaced or overhauled.

If you unplug the power of the computer and turn it on again, and turn it on again after turning it off, it can basically be judged that the motherboard battery is dead, and the replacement battery should be five yuan.

The motherboard battery is dead and cannot save time. But maybe your system time option is selected "Synchronize with Internet Time", and it will be normal after the synchronization time and Internet time server synchronization, but as soon as the computer is turned off, the time will be reset to zero.

It is recommended to buy a new motherboard battery replacement, which is very cheap, about 5 yuan.

Generally the battery is dead!!

Because, the battery supply, record the relevant hardware execution script in the BOIS to start, if your battery is dead, the above situation will occur!

You say sometimes it can be restored.,This is because after you enter the desktop, there is a synchronous update with inter in the setting time!! So there will be times when it comes to recovery.

There are two situations that will cause time to not be saved.

1. The CMOS battery is out of power, just replace a battery, disassemble the case and observe the main wrench to see the battery.

2. There is a virus, and many antivirus software cannot be used normally as long as the system time is too old. Therefore, some viruses will change the system time and make the kill software ineffective. The virus can only redo the system.

Reset with the operation key on the instrument cluster.

The operation method is shown in the following figure:

1. Turn off the engine of your Honda car, and press and hold the "Reset" button after the engine is turned off.

2. When holding down the reset button, insert the key to start the engine.

3. Release the "Reset" button after the vehicle starts, and press the "Clock Adjustment" button once.

4. At this time, the maintenance cycle light is in reset mode, and the normal view will be restored after a few seconds.

5. After the reset is completed, you can check the interval mileage from the next maintenance, the method is: press the "clock adjustment" button 4 times, and the multi-function display will display the interval mileage from the next maintenance.

Honda maintenance lights are zeroed.

The car's maintenance lights are reset to zero.

When the car is every 120,000km, the interval indicator light will light up, prompting the owner to do oil and filter maintenance, after the maintenance work is completed, use the key to insert the special long hole in the lower right side of the dashboard until the indicator light turns from red to green.

2. The maintenance light of the Acura series is reset to zero.

From 1988 to 1990, the maintenance of the Legend model was zeroed.

a.Every 12,000km of the car, the scheduced servicedue maintenance light will turn on, warning the owner to do the maintenance and replacement of the oil and filter element, and then reset the maintenance light after the oil and filter element are replaced.

b.The button for this maintenance light is located next to the ignition. To reset the setting, press the maintenance light button for 3 seconds during key-on to reset it.

To determine whether it is completed, set the key-off first, and then set the key-on to see if the maintenance light is on again, if it is not on, it means that it is complete, if it is on, you must redo it again.

From 1987 to 1999, the Legend Coupe model was maintained to zero.

a.When the mileage is almost 12,000 km, the maintenance light will change from green to yellow, and when the maintenance light is still not maintained and the maintenance light is reset to zero after driving to 12,000 km, the maintenance light will change from yellow to red.

b.Once the engine maintenance work is complete, use the key to insert and press down into the long hole under the tachometer to complete the zeroing.

1) Turn on the ignition or start the engine.

2) Press the switch to go to warning check mode.

3) Press the switch to select Other.

4) Press the switch to go to maintenance.

5) Press the switch to enter maintenance.

It should be that the motherboard battery is dead... Open the case and change it.

The motherboard battery may be dead, replace it.

The motherboard is dead.

You look for a battery on the motherboard and get a new one.

It should be caused by the poor contact of the circuit board in the instrument, because after zeroing, it can also be restored to prove that the actual data of the odometer is accurate, and replacing the meter can solve this problem.

Were the other lights still on at the time? The whole car was powered off, and then the engine was dragged again because it was moving. This is a big problem, so fix it quickly.

Hello! The problem of the odometer flexible shaft, the flexible shaft should be broken but not completely broken, if necessary, replace the new table flexible shaft.

There is a small button on the instrument panel that can be switched between the "clock" and "small odometer" when clicked.

When in the "clock" position, press and hold the small button, wait for the "time" of the clock will flash, press the small button to adjust, if you don't press it, it will turn to the "minute" position after a while, and press the small button to adjust the minute.

If it is in the "small odometer" position, press and hold the small button to clear the "small odometer".

It is highly recommended that you read the instruction manual of your car first.

It may be due to the interference caused by the ignition that the clock has been reset.