Instrument panel malfunction The backlight is not on, the tachometer and odometer are not responding

If the instrument indicator is not lit, first check the power supply fuse of the dashboard, and replace it if it is blown. Disassemble the dashboard, the lights are generally at the back of the dashboard, replace the lights that are not lit, and generally the individual lights are not lit to indicate that there is no problem with the fuse and wire, the main reasons are as follows

1. The lamp of the dashboard is damaged and needs to be replaced in time;

2. If the power supply line of the dashboard is broken, there is an open circuit or short circuit, which will also cause the car dashboard to not light up;

3. If the power supply fuse of the car dashboard is broken, there will naturally be no power supply, and the dashboard will not light up.

Precautions in the use of the car dashboard:

1. When the indicator light is on, the odometer should be observed immediately, if the cumulative mileage reaches or exceeds l00,000km, the timing toothed belt must be replaced, otherwise the timing toothed belt may break, so that the engine can not work normally.

2. After replacing the new timing toothed belt, it is necessary to open the rubber plug outside the reset switch on the mileage dial, and press the reset switch inside with a small round bar to extinguish the indicator light of the timing toothed belt.

3. After replacing the new timing toothed belt, remove the odometer and adjust all the readings on the odometer to the 0 position.

1. First open the cabin cover for vehicle air drying.

2. Secondly, open the fuse box to check whether the fuse is damaged.

Summary. Hello, I am your exclusive technician, attentive, careful, dedicated to answering your car questions, for you to find the corresponding problem solutions and solutions! When the vehicle fails and the lights are all lit, and the tachometer and the alkyne speedometer do not move at the same time, in this case, generally due to the insufficient battery power or the generator's power generation is too high, resulting in the need to detect the battery power, and whether the power generation of the generator is too high?

When the generator generates more than 15 generators, the fault indicators of the ticket will be all lit, or when the battery is insufficient, this will also happen, the car fault lights are all on, and the tachometer and speedometer do not turn what's going on.

Hello, I am helping you sort out the answers to your questions, please wait a while Hello, I am your exclusive late technician, attentive, careful, and attentive to answer your car questions, and find solutions and solutions to the corresponding problems for you! The vehicle fault lights are all lit, and at the same time the tachometer and the alkyne speedometer do not move, in this case, generally due to the lack of battery power or the power generation of the generator is too high, resulting in the need to detect the overall situation of the battery power, and measure whether the power generation of the generator is too high? When the generator power generation is higher than 15, the fault indicators of the ticket will all be lit, or when the battery power is insufficient, this situation will also occur.

This kind of fault is now resistant to land phenomena, and it is necessary to use a diagnostic instrument to read the fault of the vehicle system, so as to confirm the location of the fault, but the common fault in Yizai Town is caused by the voltage of the coarse circuit voltage is too low or too high.

The car fault lights are all on, and the tachometer and speedometer do not turn.

Hello! There could be several reasons for this:1It may be that the speedometer of the vehicle's instrument assembly is malfunctioning, causing the pointer of this gauge to not turn.

2.It may be that the vehicle's wheel speed sensor is malfunctioning, causing the watch to stop turning. 3.

It may be that the vehicle's mileage sensor is malfunctioning, causing the watch to not turn. Specifically, you still have to go to a 4S shop or repair shop to see! I wish you a happy life, happiness and good health!

For the fault lights on the car, we need to know that the engine fault sign lights are different colors, and its colors are different, and the warning level is also different. We all know that the fault light of the engine is yellow, just like the signal light on the road, the yellow grade is just to remind you to pay attention, and the red signal light is the high grade signal light, which needs you to stop using it immediately.

Different situations where the engine fault light is on.

When the engine fault light is on, it can be divided into three situations, each of which has a different way to deal with it

1. The first is that the car can't start, which may be caused by the failure of the fuel pump or ignition parts, so let's call ** for help, after all, the chance of ordinary people wanting to make the car come back to life by themselves is very small.

2. The second is that the fault light is on, but there is no abnormality in driving, which may only be a sensor failure, in this case, you can continue to drive temporarily, but it is best to slow down at low and medium speeds, and the next destination is of course the repair shop.

3. The third is that the engine fault light is on, and the vehicle can be driven, but there are symptoms such as severe shaking and acceleration weakness.

Hello car owner, if there is a problem with the vehicle crankshaft position sensor, the dashboard engine fault light will be lit, and sometimes it will cause the vehicle to fail to start, I hope it can help you, if you have any questions, you can continue to consult, I wish you a happy life! Happy family! [If you have a problem with the car, ask the car master.]

4S shop professional technician, 10 minutes to solve. 】

Hello, the engine failure light will be on, hope it helps you. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, according to the theory, it will report the fault code and light up the instrument fault light [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

will get in the car; 1.I don't know what type of crankshaft position sensor you are talking about, whether it is Hall, magnetoelectric or photoelectric. If it is a magnetoelectric crankshaft position sensor, there is no 5V voltage, this crankshaft position sensor has only two wires, and Hall-type and photoelectric crankshaft position sensors will have a reference voltage of 5V, but this reference voltage may also be 8V or 12V (depending on the model).

2.Some cars are designed in such a way that the engine can still start when the ECU of the engine does not receive a crankshaft position signal, such as Wuling's B series engine. The engine determines the top dead center of the piston and the engine speed based on the signal from the camshaft position sensor, and the engine injection method changes to group injection (sequential injection if there is no fault).

Even so, the operation of the engine is not normal, and the engine will have enough power.

How the crankshaft position sensor works:

There are three main types: magnetoelectric induction, Hall effect, and photoelectric. The three types work on the following principles:

1. Magnetoelectric induction:

The magnetoelectric inductive speed sensor and the crankshaft position sensor are installed in the distributor in two layers. The sensor consists of a permanent magnet induction detection coil and a rotor (timing rotor and speed rotor) that rotates with the distributor shaft. Timing rotor has.

One, two, or four teeth, etc., the speed rotor is 24 teeth. The permanent magnet induction detection coil is fixed on the distributor body. If the speed sensor signal and the crankshaft position sensor signal are known, as well as the working sequence of each cylinder, the crankshaft position of each cylinder can be known.

Rotor signal panels for magnetoelectric inductive speed sensors and crankshaft position sensors can also be mounted on crankshafts or camshafts.

2. Hall effect:

Hall-effect speed sensors and crankshaft position sensors are signal generators that utilize the Hall effect. The Hall signal generator is installed in the distributor, coaxial with the distributor head, and is fixed on the distributor panel by the encapsulated Hall chip and a permanent magnet. The number of notches on the trigger impeller is the same as the number of engine cylinders.

When the blade on the trigger impeller enters between the permanent magnet and the Hall element, the magnetic field of the Hall trigger is bypassed by the blade, and the Hall voltage is not generated, and the sensor has no output signal; When the notched part on the trigger impeller enters between the permanent magnet and the Hall element, the magnetic field lines enter the Hall element, the Hall voltage rises, and the sensor outputs a voltage signal.

3. Photoelectric type:

Photoelectric crankshaft position sensors are generally installed in distributors and consist of a signal generator and a signal disc with light holes. The signal panel rotates together with the distributor shaft photoelectric type, and there are 360 lithography gaps in the outer ring of the signal panel, which produces a signal with a crankshaft rotation angle of 1 °; Slightly inward, there are 6 orifices evenly spaced 60 ° apart, generating a signal of a 120° angle of rotation of the crankshaft, one of which is wider to generate a signal relative to the top dead center of the 1st cylinder. The signal generator is mounted on a distributor housing and consists of two light-emitting diodes, two photodiodes and a circuit.

The light-emitting diode is facing the photodiode. The signal disk is located between the light-emitting diode and the photodiode, and because there is a light hole on the signal disk, the phenomenon of alternating light transmission and shading occurs. When the beam of the light-emitting diode hits the photodiode, the photodiode generates a voltage; When the LED beam is blocked, the photodiode voltage is 0.

These voltage signals are amplified by the partial shaping of the circuit and are transmitted to the electronic control unit (ECU) at 1° and 120° crankshaft rotation angles, which calculates the engine speed and crankshaft position based on these signals.

Crankshaft position sensors are usually installed in distributors and are one of the most important sensors in control systems. Its functions are: detecting engine speed, so it is also called speed sensor; Detecting the position of the piston top dead center, so it is also called an top dead center sensor, which includes the detection of the top dead center signal of each cylinder used to control the ignition, and the top dead center signal of the first cylinder used to control the sequential fuel injection.

Summary. Hello dear, there are several reasons for this situation: the first is that the car cannot start, which is caused by the failure of the fuel pump or ignition parts, then we will directly call ** for help, after all, the chance of ordinary people wanting to make the car come back to life by themselves is very small.

The second is that the fault light is on, but there is no abnormality in driving, this is just a sensor failure, in this case, you can continue to drive temporarily, but it is best to drive slowly at low and medium speeds, and the next destination is of course the repair shop. The third is that the engine failure light is on, and the vehicle can be driven, but there are symptoms such as severe shaking and acceleration weakness. Hope it can help you, dear <>

The hour hand of the speedometer does not move, and the engine fault indicator light is on, how to solve it?

Hello, I've seen your question Ha Now I'm manually replying to the content for you, but it takes a little time, please be patient for a while, thank you, thank you.

Hello dear, there are several reasons for this situation: the first is that the car cannot start, which is caused by the failure of the fuel pump or ignition parts, then we will directly call ** for help, after all, the chance of ordinary people wanting to make the car come back to life by themselves is very small. The second is that the fault light is on, but there is no abnormality in driving, this is just a sensor failure, in this case, you can continue to drive temporarily, but it is best to drive slowly at low and medium speeds, and the next destination is of course the repair shop.

The third is that the engine failure light is on, and the vehicle can be driven, but there are symptoms such as severe shaking and acceleration weakness. Hope it can help you, dear <>

Is there anything else you can help you with?

I hope the above is helpful to you If you are satisfied with me, please give a thumbs up Your like is the infinite motivation for me to answer the question <>

Possible Causes and Treatments:

1.Is there enough oil?

2.Coolant, brake fluid, and booster oil are not missing.

3.If you don't consider using the computer to look at the fault code (it is not ruled out that it was lit up because of the lack of something before, and the fault code was not clear after refilling, so it was not extinguished.) ）

The engine indicator is used to show the working status of the engine, and its color is mainly yellow. Twist the key, the indicator light will also light up when the vehicle performs self-inspection, and the indicator light will automatically turn off when the car is started. If the indicator light is solid after starting the car, it means that there may be a fault in the engine system.

1. If the turn signal is on, but the light in the instrument is not on, the problem should be on the instrument mountain.

2. If the other functions of the instrument are normal and only the turn signal is not lit, then it is very likely that the instrument or the bulb inside is broken.

Instrument panel] 1, instrument panel for installing instruments and related devices of rigid plates or structural parts. According to the type, there are screen instrument panels, frame instrument panels, channel instrument panels, and cabinet instrument panels.

2. The instrument panel can be externally illuminated, and can also be attached to the console, with various forms and specifications, various instruments can be installed according to the needs, and various instrument panels can also be combined into a whole as needed. Instrument panel is sometimes a word in a broad sense, including panels, screens, cabinets, tables, analog (semi-Qiliang simulation) panels, etc.