Where is the coolant temperature sensor
If installing an ambient air temperature sensor is not a top priority, as well as regularly checking its performance, monitoring the temperature of the coolant is extremely important. To do this, the car is equipped with a special device that helps the driver to constantly monitor the situation and prevent the engine from overheating.
A serviceable sensor will allow you to turn off the vehicle's engine in time, if there are prerequisites for overheating - this will prevent the onset of serious consequences associated with this. The location of the device itself may differ on different car models, but it will always "stand" in the way of fluid from the engine to the radiator:
It helps not only to avoid overheating. For example, at a negative temperature outside, this device will allow the driver to judge how warm the engine is. Naturally, one should not start driving on a supercooled engine, since this not only leads to a sharp increase in fuel consumption, but also seriously increases the percentage of engine wear. Information from the coolant temperature sensor will help select the “correct” engine warm-up mode, “telling” the driver whether to increase idle speed.
Outside temperature sensor VAZ 2114 how it works
The mass of sensors in the vehicle functioning system facilitates the control of various processes, and also supports the correct functioning and competent distribution of resources between various systems.
Over the years, the filling of the car becomes more and more functional and more and more controllers are required to maintain its performance.
For example, the outside temperature sensor was not used at all in early car models. In truth, these types of detectors began to be introduced everywhere not so long ago. This is evidenced by the fact that a good part of motorists to this day is sincerely perplexed when the statement is made that the use of such devices is convenient and even necessary.
The operation of the DTVV resembles a duct air temperature sensor in its principle. DTVK measures the air in the channel, based on the readings sent to the head unit from the sensing element. In general, the car device works in much the same way. Both of these devices are thermistors - they convert temperature level data into resistance readings.
Outdoor air temperature sensor VAZ 2114
The model of the temperature sensor that is installed on this car is VAZ 2115-3828210 and its modifications 02 and 03. Some of them are marked with VDO - there is an opinion that devices with such marking are more accurate, fast and modern.
In the most modern car models, the outside air temperature measurement system allows the owner to start the engine auto-heating in case of frost.
It is worth noting that early Lada models were not equipped with such devices. Over time, the situation began to improve, definitely for the better. For example, VAZ 2110, VAZ 2112 have so-called trip computers, which may not be as informative as the devices of more modern cars like Samara-2, but could also show the level of air heating outside the car.
The best choice would be the place that is reserved by the manufacturer for the detector. Or - a place near the towing area under the bumper
It is important to install the device under the front, as under the rear bumper due to warm air from the motor, the readings may be distorted. Not much, but the required accuracy will not be
It is located in the front of the vehicle - between the bumper and the radiator.
Like any other sensor in domestic cars, this one can be changed on your own, the main thing is to read the instructions and safety regulations and strictly follow them. You can, of course, drive the car to the service station and entrust it to professionals, but if you have some skills, it will be easier and cheaper to change the device yourself.
It is worth noting that the DTVV cannot be repaired - only replaced, but this is not so scary, since the cost of the spare part is very low.
The principle of operation of the liquid temperature sensor
What is worth knowing about the malfunction of the device?
First, you need to understand when it is worth paying attention to this particular detail. The main sign of a breakdown is the discrepancy between the sensor readings and the actual level of air heating outside the car.
It is not so easy to notice if the difference is small. But, as a rule, if the temperature indicators do not match by less than seven degrees, this is not even considered a breakdown. But the difference of about 10 is already easier to recognize.
It is also common for the sensor to cycle at minus forty even in the warm season.
As for the owners of modern cars, in particular foreign cars (Ford, Chevrolet, BMW, etc.), the on-board computer itself will indicate a malfunction by providing an error code on the screen.
Secondly, before changing the thermistor itself, it is worth checking the contacts and wiring - if the malfunction lies in them, then replacing the thermal detector will not save the situation.
The reasons why the VAZ 2114 air temperature sensor may fail:
- mechanical damage that violated the integrity of the device (hit by a heavy object during the trip - crushed stone or something similar);
- the influence of a harsh climate - in particular, very low temperatures overboard can lead to a malfunction of the device;
- oxidation of contacts and broken wiring - can be both independent breakdowns and the cause of failure of the DTVV.
Outcome
Models and brands of cars that today are equipped with DTVV can be listed endlessly - Lada Kalina, Niva, Gazelle, Volkswagen Passat, Ford Focus 2 and Focus 3, Daewoo Nexia and BMW E 39.
Another SURPRISE from Opel!! Opel ASTRA J 2012. Replacement of the TEMPERATURE SENSOR.
Grant engine temperature sensor. We install with our own hands
Each owner of a Lada Grant car faced its main drawback - the absence of an engine temperature sensor on the panel. The task of the AvtoVAZ management is to make Grant accessible, the engineers performed “excellently”, saving even on this device. The emphasis was on cheapness, so they tried.
Soon, however, everything was corrected - on models of a higher price and extended equipment Lada Granta liftback 21911, 21912, 21917, the engine temperature sensor has already appeared and helps to monitor the state of the internal combustion engine.
However, what should owners of earlier models do? The overheat warning lamp installed on cars is not informative enough.
The thermostat is a weak point of Lada Grant cars, and it would be much more effective to determine its malfunction at a very early stage, evaluating the behavior of the TD sensor needle, but ...
It was these problems that prompted some motorists to look for answers to the question: “How to install an engine temperature sensor on a Grant?”. You can, of course, contact the dealers. For a fee, specialists will equip everything you need. But there is no need to rush. It is not at all difficult to equip your car with this device on your own. To see this, let's look at the whole process step by step.
How to equip your Grant with an engine temperature sensor
- temperature indicator,
- plastic case for it
- the sensor itself
- fastening clamps.
With the kit in your hands, it's time to go to the car. To see the place where the Grant engine temperature sensor will be fixed, the negative terminal is removed from the car battery, and the air filter is disconnected and removed behind it.
This will open a view of the pipe that is removed from the thermostat.Coolant circulates through it during operation.
It is necessary to carefully cut the pipe and insert the temperature sensor together with the adapter (buy at a car dealer), then tighten it securely with clamps.
An indicator with an arrow for the temperature of the sensor can be installed on the dashboard near the windshield next to the dashboard. Visually, this is very convenient, because.
it is located not far from eye level, and a quick glance will be enough to control the temperature level.
But what if you may need to fix the navigator around this place? The second version of the sensor indicator mounting location is even more aesthetic.
Many motorists install the device in a cup holder next to the checkpoint, while the panel itself will need to be slightly modified.
Of course, in this case, you will have to look for a place for a cup of coffee, but for that there will be a huge plus: the sensor pointer looks very harmonious in your cabin. Now you can fully control the temperature of the engine and monitor how the thermostat behaves.
Diagnostics and indication
By connecting it to a special connector and download to your smartphone a program that interfaces with the adapter, such as hobdrive, torque or opendiag.
In addition to temperature, other sensor parameters can be displayed, such as air intake temperature, volume and many other functions.
You can put your smartphone on a special delivery or just on the panel. Here's what it looks like in practice.
Diagnosis and consequences
It would seem that it can be difficult to determine the malfunction of the temperature sensor. In practice, it is possible to see a discrepancy in the measured temperature with the real one only in the case of a large difference. And for the engine, a faulty intake air temperature sensor is either excessive fuel consumption or difficult starting in the cold season.
The most reliable diagnosis is made with a multimeter. First, the resistance is measured on the removed sensor without influences, and then the element is heated. If the resistance changes in the given intervals, everything is fine. If the changes are not fixed, this is a clear malfunction.
Every modern car has a mass of installed sensors that constantly measure the temperature of the ambient air, coolant or intake air.
It is quite important to constantly monitor these indicators, since they directly affect the efficiency of the engine, its stable and stable idling, as well as fuel consumption.
In addition, a serviceable outdoor temperature controller will automatically start the engine in winter, when the car is parked, and will facilitate the “morning” start. As a rule, all cars coming off the assembly line of the manufacturer already have a complete set of temperature sensors. But some domestic-made models lack an ambient temperature sensor, which brings some inconvenience to the car owner. Fortunately, the device itself is inexpensive, and the process of installing it yourself is not difficult.
Automotive temperature sensors
Every car owner knows how complicated the electrical component of his car can sometimes be. Each element of such a system is an important link, and its failure can bring a different amount of trouble. Where is the air temperature sensor in the car and what is it for?
Since air stopped getting into the fuel mixture through a simple air duct, but began to be correctly calculated without human intervention, temperature sensors have firmly settled in the car. There are two main areas where there are exactly thermostats with an air temperature sensor.
1. The system for creating a fuel-air mixture for the engine. A simple thermistor is used here as a sensor.When the temperature changes, changes in electrical resistance are recorded. This is necessary in order to understand how much fuel to supply with intake air. Colder air is denser and requires more gasoline or diesel for the same mixture volume.
2. Climatic installation of the car. For the full operation of the system, it is necessary to have several detectors at once. But to estimate the temperature of the street, you can do with one.
P0113 intake air temperature sensor error, high pressure on the VAZ 2114 and replacement of a faulty indicator
string(10) "error stat"
string(10) "error stat"
The engine of any modern car
equipped with several systems that keep the functioning under control
power unit.
Information about the violation of the operability of a node or a separate
component through the sensors comes to the onboard control unit, where it is stored
as errors under different code numbers. One of them - p0113 - is a fairly common problem.
An alarm signal, one of the causes of which - error P0113 - is displayed on the dashboard
What is this sensor and when does the error pop up
The display of this code informs the driver of a malfunction in the sensor indicating the temperature of the air supplied to the engine. A malfunction occurs when an excessively high signal is sent to the meter ECU. Structurally, it is a conventional thermistor (thermistor).
How does the sensor work? Downgrading
outside temperature, the air becomes rarefied and it is more difficult for it to penetrate
"inside" of the motor. On the other hand, in the heat, the atmosphere is not so dense and
experiences little resistance when sucked into the power unit.
ECU takes into account
data received from the thermistor and sends a command to change the angle
ignition, fuel injector opening time, plus regulates the speed
idle move.
The device is installed in the air pipe, sometimes
integrated into the flowmeter.
The location of the sensor on the VAZ 2114
Causes of the P0113 code
In diagnostic devices, this "nuisance"
called Intake Air Temperature Sensor High. The described error p0113 appears only in
four cases, due to the simplicity of the sensor design:
- malfunction of the thermistor itself;
- violation in the power supply circuit of the sensor - one of the wires is shorted or broken;
- there is no electrical contact in the connecting block;
- deposition of a layer of dirt and (or) oil stains on the sensor, reducing the sensitivity of the thermistor.
The indication "error 113" can appear on any modern car, both Russian and foreign. It can be Mercedes with Audi or VAZ 2112, 2114, GAZ, UAZ.
The intake air temperature sensor is installed on any modern engine. Sometimes the reason is quite banal.
Error 0113 on a VAZ 2114 or VAZ 2115, 2110, 2111, 2107-2109 (injector) is sometimes displayed after a long car park without operation, when the battery is too, but not completely discharged.
Its charging restores the performance of the machine's systems, including the air temperature sensor.
Failed sensor
Can I continue to drive
Sensor failure
intake air temperature, which ceases to provide information or
defines it incorrectly, leads simultaneously to several unpleasant
consequences. First of all, problems begin with the start of the power
unit.
This is because the thermistor works together with the sensor.
coolant temperature
The data coming from them allows you to accurately
“calculate” the injection time, which is especially important when starting the engine “hot”
Along the way, other problems come to light:
- drop in engine power, deterioration of its throttle response;
- unstable operation of the engine at idle.
Depending on the brand of car, there may be other consequences. For example, for cars made in China Chery, fuel consumption may increase and the rear axle may stop turning on.
Possible consequences of ignoring
Drive to your home or nearest technical station
It is possible, but it is not necessary to delay the troubleshooting process.
In the end
as a result, this is fraught with a reduction in the operational life of the power plant,
associated with rapid wear of parts of the cylinder-piston group.
Possible
engine repair at a cost cannot be compared with the price of a sensor or
payment for services to eliminate other reasons for his refusal.
Overhaul is expensive!
Types of sensors that monitor coolant temperature
All sensors installed on modern cars are divided into magnetic and bimetallic. You can independently determine the specific type installed on a personal car by the speed of its reaction after starting the engine. Magnetic is characterized by an instantaneous reaction, and after starting the motor, it immediately shows the current temperature. The bimetallic version does not differ in such “efficiency”, showing the correct temperature after a short pause.
The principle of operation of a bimetallic (ribbon) sensor is quite simple. The existing control unit changes the current strength depending on the current temperature of the circulating liquid, which leads to heating of the coil on the metal strip. It is able to change its length according to the temperature, and turn the arrow attached to it, showing the current temperature of the liquid.
The device of the magnetic sensor is also not difficult. It consists of an anchor with an arrow attached to it, on the sides of which there are two coils powered from the on-board electrical network. The resistance of the coils changes depending on the passing current, and it is determined by the current temperature of the motor. There is another type of sensors - capillary. Currently, it is practically not used due to the inconvenience of the design.
Self-installation of the outdoor temperature sensor
Many VAZ car models do not have an air temperature sensor, therefore, to increase comfort, many motorists install it themselves. This does not require special skills, but first it is worth determining whether the dashboard is able to identify the readings of the new device. It is not difficult to do this, and, for example, on the "Grant" it is performed as follows:
If the version supports the ability to connect a temperature sensor, you can go to the auto shop for a purchase and proceed with the installation process. Initially, you should correctly determine the location of the outdoor air sensor - it should not be affected by temperature flows from the engine. The optimal place is considered to be the space close to the radiator - it can be seen with the hood open, there is a stud welded to the frame. It is convenient to “throw” the mass from the device on it.
After fixing the device itself, you will need to run the “plus” wire into the cabin. To do this, you can use the plug from the clutch cable or another convenient place. After that, you will need to remove the instrument panel, you need to find the 25th contact, designed specifically for the temperature "controller" of the ambient air. Outboard temperature readings appear automatically in the menu. If this does not happen, the positive terminal is removed from the battery for 10 minutes. After power is restored, the temperature will appear. You can watch the installation process in the video:
What is the purpose of the inlet air temperature sensor?
Another temperature sensor that any vehicle is equipped with is the intake air temperature sensor. At first glance, its role is rather insignificant, and most motorists may not even be aware of its existence. In fact, the smooth operation of the car engine largely depends on the performance of this unit.Most modern temperature sensors are based on a semiconductor thermistor, so there are practically no problems during operation.
If difficulties arise, as a rule, they are as follows. In the process of long-term operation, there is a discrepancy between the temperature readings on the sensor housing and its electrical resistance. This leads to an error in the calculation of the real temperature of the incoming air to the lower side. As a result, the computer that calculates the parameters of the fuel mixture sharply reduces the air supply and at the same time increases the "portion" of fuel. The resulting mixture entering the cylinders is "inferior", which makes the process of its combustion difficult. This results in unstable operation of the engine, in addition, an overly enriched mixture easily causes candles to flood, which makes it impossible to start the engine.
There are no recommendations regarding the frequency of checking this sensor, and each car owner decides for himself
To independently check the performance of this important intake air temperature sensor, you will need an ohmmeter and a table with normal resistance values \u200b\u200bwhich is present in the instructions for the car itself. The test starts on a cold engine and continues on a running one until the cooling fan starts.
If there is reason to believe that the sensor is faulty, it makes sense to replace it with a new one. The cost of the device is low, and all replacement work is carried out in a matter of minutes, and does not require special skills or experience.
The external air temperature sensor (DTVV) is installed on cars to ensure driver comfort.
AvtoVAZ specialists began to include an external air temperature sensor in the car's on-board computer. It is included as standard with the VAZ-2110. On the fifteenth model, a VDO dashboard with two windows and a temperature display is already installed.
Various options for installing DTVV on a VAZ-2110 car have been widely used. Most suitable for this model is a sensor with catalog number 2115-3828210-03 and a cost of around 250 rubles. Its serviceability is usually checked using a test: when the part is cooled and heated, the current resistance indicators change.
DTVV must be isolated from moisture, it is also necessary to exclude direct sunlight from falling on it. The sensor must be protected from heat coming from the engine compartment of the vehicle. Therefore, the most suitable place to mount the device is at the front of the vehicle or in the immediate vicinity of the towing eye.
The sensor itself is equipped with a pair of contacts: one of them is directed to the "mass", and the second gives a signal about a change in temperature. The last contact is made into the interior of the car through the hole next to the fuse box. VAZ-2110 is equipped with on-board computers in two versions: MK-212 or AMK-211001.
In such on-board computers, the second contact of the sensor must be connected to C4 on the MK block. At the same time, I take out the outgoing free wire, and then carefully insulate it.
If the DTVV is not connected correctly or an open circuit occurs, then the following will appear on the display of the on-board computer: “- -”.
It is quite easy to connect DTVV to the VAZ-2115, since this car is equipped with a VDO panel with two displays.
The sensor wire is attached to the red block X2 in socket No. 1 on the dashboard of the car.
Ambient temperature sensor for VAZ 2114 Part 1 Updated logbook Lada 2114 2012 on DRIVE2
Hello to all! I was prompted to write this post not so much by the desire to share the repairs made, but by the description and collection of information on this issue. The Internet is full of questions about this sensor, its failure, and ways to fix problems. But these are just questions.
There are no specific answers. I will try to describe the diagnosis and repair according to my personal vision of this problem.If you have the opportunity to competently supplement the post, indicate some points. which were not described by me, then I will be happy to transfer them from the comments to the main entry.
In this case, be sure to specify the user's nickname.
I have a problem with cold weather. The sensor began to lie at 7-10 degrees. If there was a temperature outside - 34, then my sensor showed everything - 40. While driving, the temperature rose slightly, to about -36. The variations were different, I wrote only two examples. I absolutely did not like it. I started looking for a way to solve this problem.
First remedy. It is necessary to neutralize the bad contact in the chip. This can be done by slightly bending the legs on the sensor itself.
The second way to fix. Replace the sensor itself. There are three types of sensors:— 2115-3828210— 2115-3828210-02— 2115-3828210-03
They differ, as I understand it, they are only manufacturers. I have a sensor — 2115-3828210-03. I replaced the sensor — 2115-3828210 with notice VDO.
I must say right away that everything came up, everything works.
Third remedy. Check all contacts on the way from the sensor to the tidy. This is quite problematic to do.
- Contact check points- in the mounting block on the side of the engine, block X6 Blue-red wire cell 7 (may differ, depends on the year of manufacture of the car) - in the mounting block on the side of the passenger compartment block X4 Blue-red wire cell 15 (may differ, depends on the year of manufacture of the car)
- - in the dashboard block X2 Blue-red wire cell 1 (may differ, depending on the year of manufacture of the car)
— "weight" this is where the ambush begins, since no one knows where this sensor takes the "mass". According to the scheme: the mass is total with the block headlight. But this has not been verified.
wiring diagram
Added a diagram. The red line indicates the sensor connection route.
Fourth remedy. Replace dashboard. Which, of course, is unlikely, but such a scenario does exist and cannot be ruled out.
Fifth remedy. I also found notes on the Internet that the temperature may not be reflected correctly if the sensor is connected to both the dashboard and the on-board computer. To fix this problem, it is necessary to disconnect the contact from the BC block (cell 7). This is due to the incompatibility of the BC and the Dashboard.
Sixth remedy. Search for a break in the wiring with a multimeter.
Let's say your sensor just failed. You have successfully bought it. It cost me 170 rubles. And you need to change it. It is quite easy to change. Even at -18 like today. It is enough to lay something on the ground to lie under the car for convenience. I used corrugated cardboard. You must first remove the sensor and fasteners.
Carefully bend the latches and the sensor freely comes out of its place. Now you need to disconnect the sensor about the chips. There is a latch on the chip that prevents the sensor and the chip from spontaneously disconnecting. It must be pulled out, that is, in the opposite direction from the sensor and remove the sensor from the chip. It's also quite simple.
Now we connect a new sensor and install it in place, we do everything carefully. The plastic is very brittle.
And now we're going to check.
Here begins the second ambush.
after replacing the ambient temperature sensor, it is necessary to remove the negative terminal from the battery for 30 seconds. This is necessary in order to reset the readings in the dashboard.
After doing this procedure, I started the engine again and everything returned to normal. The thermometer read -18 degrees, which was absolutely accurate.
From the above following entry, you can make another troubleshooting point.
Seventh remedy. Try unplugging the negative battery terminal for at least 30 seconds.
From this point, you can start all the diagnostics. For our electronics are not perfect and fail in severe frost.
This is all the information for now. I hope you can help me improve this post.
Thank you all for your attention!
Firmware for instrument cluster on Kalina2Granta
Since the USBDM programmer has already tested it at home (CAN recovery) and found out that they can still flash instrument clusters (KP), I decided to flash it myself.
My gearbox is 219240 and came with firmware 007 and did not display engine temperature readings. I decided to reflash to version 009. But as always, the first pancake was lumpy, an error popped up during the firmware and the result was a brick. Again, study the Internet and figure out what's wrong. I found my mistake, reflashed it with a new one - it all worked.
But here the mileage readings became “000” and IMMO got lost. There were no problems with retraining the keys (IMMO), there is a lot of information on the Internet, and he himself has already done it. But restoring the mileage was not easy, the car is under warranty and the mileage is also needed. Turned for help to MrRararai , he helped restore my mileage, for which many thanks to him.
Now I have firmware 012 on the CP.
Now I also learned how to change the mileage.
I climbed on the Internet and this is what I found about instrument clusters:
how to view firmware - press the mileage switch button, then turn on the ignition, without releasing the button (without starting the engine), the test will go, press the button again - we see the software version (top line) and equipment (bottom line).
There are two firmware options:
1) with resetting the mileage and IMMO (it will be necessary to teach the keys in a new way)
2) with the preservation of mileage and IMMO.
— The KP seal (warranty) is broken.
- When flashing, there must be a learning key nearby, if something goes wrong and the IMMO is overwritten - do not start the car, you need to learn the keys (IMMO)
015 - on the old board, there is not a single temperature.
029 — 040 - Updated board. there is no temperature.
On all panels, a different display is installed from the standard, for firmware it is necessary to change it to a display from the norm. And add a bunch of other elements. The old and new versions are different, each has its own improvements.
053, 060, 076, 087 - no temperature.
090, 091 – it is possible to connect an ambient temperature sensor (TOS), but there is no coolant temperature (TOZH)
092-095 – there is TOZH and TOS
053, 060, 076 - Old boards, in order to flash it is necessary to finalize the board with a soldering iron or sew an adapted 092 firmware
087-095 - New boards. They sew without any modifications.
046 - everything is there (the same as 009 from viburnum)
009 - everything is there (same as 046)
012 - everything is there, the latest version. It differs from 009 in the presence of a gearshift prompt
Hardware PCs of configuration 40 (Lux) differ from configuration 20 (Norma) by the presence of an LED for indicating PPTF and the color of the glasses
— 219220(40)-007 and higher, software will be: 009 or 012 — BC of the “Lux” configuration + internal combustion engine temperature + removed the glitch with the outside air temperature + corrected the clock
On 012 gearbox firmware and firmware "i427ge05", "i427GKA1" ECU, only on a luxury PC (219240), only on mechanics (127 engine) - a hint about gear shifting appeared.
- 219020-060, 076 will be software: adapted 092, TOC and TOT will be added
- 219020-087 and higher, there will be software: 092 or 046 (unlike 092, it will additionally show the engine running time, fuel spent and average speed. All parameters are resettable) or 009 from Kalina (in addition to 046 turn signal squeak).
- 219040-032 and higher, there will be software: 046 - BC of the "Lux" configuration + internal combustion engine temperature + removed the glitch with the outside air temperature + corrected the clock
Some data on firmware versions was taken from Goffka
Comments 32
viburnum 2 after flashing from T007 to T012, the sounds of turn signals and emergency gangs disappeared
The sound from the turn signals comes out when the ignition is turned on ...
I also had a gearbox from 007, now 012 - there is a sound of turn signals.
no sound even while driving
So he didn't do something...
I have a grant in 2013. engine 1.6 98ls, automatic transmission, dashboard 219020 - 076. Is it possible to install a modified 092 firmware on it so that the TOL and TOS are displayed, will there be problems with the automatic transmission indication.
Good day. Guys tell me, the grant is the norm of 13 g.v. for the first time I come across, are there any nuances? I would be grateful! :)
You can flash it on software: 092
The instrument panel Lada Kalina, 11186 (2192380101020) can be installed on the automatic transmission rate grant?
No, from Kalina1 they do not fit to Kalina2/Grant
009 firmware from Kalina, and it definitely has TOZH. May not display TOC if sensor is not installed.
Oh, I didn’t write 090 correctly, but if I set 009, will it show automatic transmission switching? Don’t tell me
And now doesn’t it show - D, R, etc. ?
On the Grant they put 046, an analogue of 009
Good afternoon) Can you make me a tidy? viburnum 2 does not show the temperature.
Good afternoon. Tell me on the Grant standard with a new board, what additional. functions will need to be done, in addition to replacing the screen.
