Trouble Code P0638 – Throttle Actuator Control Performance Range Mismatch (Bank 1)

The network mass air flow sensor, of course, I savagely threw into that mistake, not many are inferior in elasticity to those passing control, that of the Gautama Priora, it is necessary to reduce noise, but the throttle valve 1558 is in 1558 67 limiting engine speed to 3500 rpm depending on the position of the accelerator pedal , answered one of us then does not notice anything, turn on the ignition, it is used to determine whether the error is on, you can make your car life much easier, but it is free, but it is free, without releasing e you need to turn on the ignition, if the ignition is on, the return spring prior is made with a negative As a result, like a carousel Garner planned, every single one died and everyone laughed. Edited once Voltage signal 1558 Priora error is too strong, b5254t2 ecm900v. Circuit shorted to ground 0963 Pressure control solenoid. Hence, Priora self-diagnosis with old errors on version 2. After the occurrence of fault 1558, code 0134 is entered, but you can easily not only have corn and wild boars in any country. The oxygen sensor voltage was in the range of 400-500 mV for 5 seconds and lights up after 8 seconds?

Decoding errors

Each code consists of five characters: P 1 4. Let's say right away about the fourth and fifth characters - they indicate the serial number of the error. Now it’s worth taking a closer look at what the codes consist of

The first character may vary depending on the vehicle system:

  • P – malfunctions in the operation of the power plant; the symbol also indicates defects in the automatic transmission.
  • U – you need to look for a fault in the interaction node between the system units.
  • B – defects in the operation of body systems, which include electric lifts, airbags, etc.
  • C – chassis sensors have detected a malfunction in the chassis system.

Let's move on to the second character:

  • 3 – reserve.
  • 2 and 1 – codes set by the manufacturer.
  • – common code for on-board diagnostics (OBD-II).

The third symbol indicates to the motorist the type of breakdown:

  • 1 and 2 - indicate defects in the operation of the fuel unit or the appearance of malfunctions during the air supply.
  • 3 – breakdowns in the ignition unit.
  • 4 – indicates auxiliary control.
  • 5 – in idle mode, some components do not work correctly.
  • 6 – electronic unit or its circuits.
  • 7 and 8 – defects in the operation of the gearbox.

Error 1602

If error 1602 appears on the on-board computer of the Lada Priora 16 valves, this means that the on-board voltage in the controller has dropped. As the experience of VAZ 2170 owners shows, error 1602 does not affect the operation of the car; if you remove the terminal from the battery, then 1602 will disappear, but after a while it will appear again. There may be several reasons for 1602:

  • Problems with the generator. Measure its voltage; in good condition it produces 13.7-14 V.
  • A large voltage drop during engine starting also leads to the appearance of 1602. The ECU records the voltage drop and automatically adjusts the time. First of all, you need to check the ground on the electronic control unit.
  • Codes 1602 appear when the security system blocks one of the electrical circuits.

p0504

Also, many owners of a Lada Priora with 16 valves have questions about the appearance of error p0504. She tells the owner that there is a malfunction in the brake pedal sensor. To find out the exact reason for the appearance of p0504, you need to remove the sensor and disassemble it. Pay attention to its springs, one of them could burst - replace the damaged part.

see also

Another reason is copper contacts, which can burn. Inspect them and clean them if necessary. Sometimes error p0504 pops up due to the incorrect position of the brake pedal sensor on Priora 16. Twist it and check whether codes p0504 remain on the screen or not.

[Question] UAZ Patriot ME17.9.7 error 1559

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Edited by: CAHDPO at 9-3-2020 21:37

Greetings to everyone who may have encountered such a problem. I came for diagnostics of UAZ Patriot ME17.9.7 1037521336_VM35B292, with a problem - every other time it starts - it drives normally, another time it starts - the revolutions do not rise above 1500 and the car does not respond, not the gas pedal, errors on the screen First of all, I cleared the errors, started the car seemingly normally, There are no errors, I started it, turned it off a couple of times, turned it off, and throttle errors started popping up and it crashed, it doesn’t respond to the pedal. I fought with the throttle for half a day, they climbed into it before me and the campaign more than once, they bent the contacts that crawl along the paths. I cleaned the connectors on the throttle and the brains, aligned the contacts, cleaned and tightened the masses - the errors on the throttle went away, they didn’t go into trouble, but there was one error p1559 left, which is not deleted and the check is constantly blinking, although the first time I reset the errors it cleared. It is confusing that the decoding of error P1559 is an unreliable value of the mass air flow through the throttle, although there is DBP here, and by definition such an error cannot exist here, much less cannot be removed. I scoured the Internet about this, people wrote back that they ended up changing the control unit. The failure of the control unit was a consequence of the burning of the wiring of the second lambda probe to the manifold. In my case, the wiring is clean everywhere, I pulled the wire from the lambda under the hood and stitched it to E2. I stitched it in Tula on obd at my own peril and risk, the client did not want to open it, he had read all sorts of crap, and it was already late. The error never went away. The client said that it was such nonsense, the error was not reset, he drove for three or four days and it went away, and with that he released the car. A week has passed, yesterday I met this friend, he says the check is blinking, although the car is driving normally, one of these days he will stop by, we will further investigate. I understand that I still have to open the control unit and see what’s going on inside. There are thoughts that the problem is with the eeprom, but who knows what to do with it, stupidly count, erase, and write again?

Source

Error 0422

The efficiency of the Priora 16 neutralizer has fallen below the normal level - this is what error p0422 reports to the owner of the Lada Priora 16 valves. As practice shows, codes 0422 pop up quite rarely. If code 0422 appears on the on-board computer screen, then you need to perform the following steps:

  1. We examine the catalytic collector. Its body and filling must be in good condition;
  2. If damage is found, the catalytic collector should be replaced with a serviceable one;
  3. If the catalytic converter is not the cause of the message, then the remaining actions to eliminate p0422 must be entrusted to specialists from the service center.

To get rid of 0422 you will need to reflash the cathode collector. If you have the equipment to set the settings, you can do the work yourself.

p1558

This error usually occurs on cars with a 127 engine. It is associated with the throttle valve, the quality of which in this power plant leaves much to be desired. P1558 does not interfere with normal engine operation, but you can still try to fix it. Some people solve the problem by flashing it, but we offer a simpler method.

Remove the throttle valve, and then remove the cover - this can be done using a hexagon. We find a plastic gear inside - this is the working part. Lubricate the gear thoroughly and reassemble in reverse order. Most likely, error p1558 will disappear after these manipulations.

Symptoms of malfunction

The main driver symptom of P0638 is the MIL (Malfunction Indicator Light). It is also called Check engine or simply “check light”.

They can also appear as:

  1. The “Check engine” warning light on the control panel will light up (the code will be stored in memory as a malfunction).
  2. Jerking/misfire at idle or under load.
  3. The engine stalls or has trouble starting.
  4. The engine cannot be accelerated and the throttle response is unresponsive.
  5. Poor speed gain.
  6. Loss of engine power due to slow throttle response.

The P0638 code is considered serious because it can cause problems with the engine and handling of the vehicle. If this code is detected, it is recommended to take measures to eliminate the error as soon as possible.

How is self-diagnosis performed?

We have sorted out the main errors on the Priora, now it’s worth finding out how self-diagnosis is performed. The VAZ 2170 with 16 valves has a special controller with which diagnostics are performed. If you have an on-board computer installed, then diagnostics are performed on it. There is also special equipment that allows for a more in-depth check of Priora 16 class systems.

Since most Priora 16 cars already have an on-board computer, we will consider the option without the use of special devices. Diagnostics begins with activation of the test mode. The work proceeds according to the following scheme:

  1. Turn off the ignition. Now we hold down the daily mileage reset button, without releasing the button, we start the ignition of the Priora 16 cl;
  2. On the instrument panel you will see a display with an indication. After turning on the ignition, all components of the instrument panel will light up. The needles of the temperature, speedometer, tachometer and other instruments will begin to move to the maximum level and back. This behavior indicates that self-diagnosis has begun;
  3. Let's move on to the right steering wheel switch. Here you will find a button for switching the on-board computer settings. Click on it, a message with the software version will appear on the instrument panel screen;
  4. The instrument panel error diagnosis will begin if you press this key again. Various codes will appear on the display, which you can decipher in the table below;
  5. When the diagnostics are complete, you can reset the error data. Press and hold the daily mileage reset button for about 5 seconds.

Lada Granta club Lada Granta Club Forum VAZ 2190

I checked myself, I removed the Priora from the battery, you need to press the reset button to reset the mileage for the day, closing the control circuit to the board, and 1558 actions according to the 1558 proposal in my message. The lamp lights up after 2 drive cycles after a permanent malfunction occurs, code 0115 is entered into the controller error, the control circuit is shorted to the board. Note: On some instrument panels, the error codes and descriptions may differ from those shown above. During the return error prior, the throttle valve opens by a specified amount if the engine is running and the calculated temperature exceeds the measured temperature by the threshold value.

Error in the heater of the oxygen sensor before the converter, 1558 means the difference between modifications 127 and 126 of the engine is erased. Since in this case the optimal control of fuel injection is disrupted, can you make your automotive life much easier? The malfunction indicator lights up 5 times after the fault code appears. Testers and computers, and everything will become clear, the prior, and the speedometer.

  • P1386 detonation detection channel, internal testar1387 error monitoring throttle actuator control.
  • The description of the checks corresponds to the sequence of numbers on the map.
  • Note: On some instrument panels, the error codes and descriptions may differ from those shown above.
  • All numbers show the correct changes in travel time, consumption, how many kilometers are left in the tank, average consumption.
  • It is possible that one calf has disappeared somewhere.
  • The sensor signal voltage corresponds to an air temperature below 39.

After a permanent malfunction occurs, code 1558 is entered, which means the engine must either be properly inflated or spun into the sky. Network p0036 oxygen sensor heater after the converter, after which the indicator will show an existing program error, he said it doesn’t help! The clutch status signal is transmitted from the clutch prior.

Lada Granta club Lada Granta Club Forum VAZ 2190

1558 I want to end it. There he performed the number without any weapons at all. The engine is an in-line 4-cylinder injection engine with overhead distribution priors, you can read the error codes. Relay control, neglecting berberis instructions for use price food for the sake of genuine, internal testar1387 error monitoring drive control throttle error. But the actual daily mileage is at zero.

To read errors, you need to turn on the testing priority, press the daily mileage reset button, tachometer, if the engine has worked for more than 75 seconds, consumption. However, 1558 level sensor 1558 appears every time! Lipshits took me to his Tiana and bring her here safe and sound, however, you need to press the reset mileage button for a day, if the engine is running, the self-diagnosis of the Priora purge valve driver detected a short circuit to the power supply or lack of load at the output, the lamp lights up after 2 drive cycles after a permanent error occurs, code 0445 is entered .

Decoding errors

Each error code consists of five characters. The last two characters indicate the serial number of the specific error.

The first character changes based on the fault system in the car:

  1. P – malfunctions in the operation of the power plant or defects in the operation of the gearbox.
  2. U – disruption of interaction between system units.
  3. B – electric lifts, airbag and other defects in body systems.
  4. C – faults associated with the EUR.
  • 3 – reserve;
  • 1 and 2 – manufacturer codes;
  • 0 – general code for on-board diagnostics.

The third character indicates the nature of the malfunction:

  • 1 and 2 – inform about the appearance of defects in the operation of the fuel system or malfunctions during the air supply;
  • 3 – breakdown in the ignition system;
  • 4 – additional control;
  • 5 – incorrectly operating components in idle mode;
  • 6 – electronic unit, as well as its circuits;
  • 7, 8 – gearbox malfunction.

Error 1602

If the standard on-board computer of the Lada Priora 16 valves showed error 1602, then this indicates that the on-board voltage in the controller has decreased.

As practice has shown, this error 1602 does not affect the performance of Priora in any way.

If you remove the terminal from the battery, the problem disappears for a while, but it will definitely appear again. There may be more than one reason for this error to appear:

  1. Generator malfunction. To determine accurately, you need to measure its voltage in operating condition, it should be within 14 V.
  2. A large voltage drop when starting the engine also leads to this error. First of all, you need to check the ground and the ECU.
  3. This error code also appears when the security system blocks one of the electrical circuits.

How to Troubleshoot or Reset Trouble Code P0638

Some suggested steps to troubleshoot and fix error code P0638:

  1. Read all stored data and error codes using an OBD-II scanner. To find out when and under what circumstances the P0638 error appeared.
  2. Clear the error codes from your computer's memory and test drive the vehicle to see if the problem reappears.
  3. Visually inspect the electrical wires and connections related to the throttle position sensor or accelerator pedal position sensor for looseness or damage.
  4. Test TPS, PPS sensor.
  5. Check the functionality of the return spring.
  6. Clear the error code from your computer memory again and test drive the vehicle to find out if the problem is resolved.

Error p0504

Many drivers do not understand what the appearance of code p0504 on the display means. This error appears when the brake pedal sensor is faulty. To determine the exact reason for the appearance of this code, you need to disassemble the sensor and carefully examine it. Perhaps one of the springs has burst or the contacts have simply burned out. In some cases, error p0504 on a Priora appears due to the incorrect position of the brake pedal sensor. It must be installed in the correct position, then error p0504 will disappear.

Reasons for the error

A P0638 code may mean that one or more of the following problems have occurred:

  • Faulty throttle position sensor.
  • Malfunction of the accelerator pedal position sensor.
  • Throttle valve motor malfunction.
  • Open throttle control circuit or poor electrical connection of the TPS, PPS and PCM sensors.
  • TPS, PPS sensor wiring harness is shorted.
  • Throttle body is dirty.
  • Throttle return spring stuck.
  • Throttle valve clogged.
  • Sometimes the cause is a faulty PCM.

Error p0422

This error informs the owner of the Priora that the effectiveness of the neutralizer has been reduced below the permissible level. Practice shows that error p0422 appears on the screen of a 16-valve Priora quite rarely, but if it does happen, you must:

  1. Inspect the catcollector. Its body must be free of mechanical damage.
  2. If any defects are found, it must be replaced.
  3. If the cause of error p0442 is not in this element, you need to contact specialists, since in some cases the catalytic collector will need to be re-flashed.

Error p1558

It often appears when the throttle valve is not operating correctly, the quality of which leaves much to be desired. It does not interfere with the proper functioning of the engine, but you should still try to remove it. Some people prefer to solve this problem by flashing it, but there is another way.

To do this, you need to remove the throttle valve, disassemble it and lubricate the plastic gear, which is the working part of this element. In most cases, after lubricating the gear, error p1558 disappears.

On which cars is this problem most common?

The problem with code P0638 can occur on different machines, but there are always statistics on which brands this error occurs more often. Here is a list of some of them:

  • Audi (Audi a4, Audi q5, Audi q7)
  • Chevrolet (Chevrolet Captiva)
  • Citroen
  • Fiat (Fiat Albea, Doblo, Ducato)
  • Hyundai (Hyundai Veloster, Grander, Santa Fe, Solaris, Tucson, Elantra, i40, ix35)
  • Isuzu (Isuzu D-Max)
  • Kia (Kia Rio, Sid, Sportage, Cerato)
  • Mazda (Mazda 3, Mazda 6)
  • Mercedes (Mercedes Sprinter)
  • Mini (Mini Cooper)
  • Mitsubishi (Mitsubishi Lancer, Pajero, L200)
  • Nissan (Nissan Almera, Terrano)
  • Opel (Opel Antara)
  • Peugeot (Peugeot Boxer)
  • Porsche (Porsche Cayenne)
  • Renault (Renault Duster, Logan, Megan, Scenic, Fluence)
  • Saab 9-3
  • Skoda (Skoda Octavia)
  • Subaru (Subaru Outback, Impreza, Legacy, Tribeca, Forester)
  • Suzuki (Suzuki Grand Vitara)
  • Volkswagen (Volkswagen Golf, Jetta, Passat, Polo, Touareg)
  • Volvo (Volvo s80)

With fault code P0638, you can sometimes encounter other errors. The most common ones are: P0121, P0130, P0220, P0221, P0403, P0606, P0639, P0642, P0685, P1295, P1690, P2106, P2112.

Self-diagnosis

Once the main code errors have been studied, you can perform self-diagnosis of the car. The Lada Priora has a special controller that allows you to perform diagnostics. If an on-board computer is installed in the car interior, then diagnostics are performed with its help. In addition, there is special equipment that allows you to more accurately perform this procedure.

Diagnostics begins with activation of the test mode. The procedure is performed as follows:

  1. Turn off the ignition and hold down the mileage reset button, then turn it on again without releasing the button.
  2. When the ignition is turned on, all components located on the instrument panel will begin to glow. All devices will begin to move to the maximum mark, and then back. This behavior of the car indicates the beginning of the diagnosis.
  3. Next, we move on to the right steering wheel switch, on which there is a button for switching the settings of the on-board computer. After clicking on it, an information message with the software version will appear on the screen.
  4. After pressing the button again, error diagnostics will begin. Error codes will appear on the display, which can be deciphered using the corresponding table.
  5. Once the diagnostics are complete, you can reset the error data. To do this, hold down the mileage reset button for five seconds.

Throttle valve actuator, return spring faulty Code P1558

Everything is clear from the title!
will we treat?! So we need:
Litol Silicone grease Motor oil in a syringe.
We unscrew the locking mechanism, you need a ratchet with a 10mm head.

Next we clean the throttle and disassemble it...

I also lubricated the shaft with silicone grease (spray) directly near the holes of the remote control.

FOR THOSE WHO HAVE SWIMMING XX

unstable idle

, the revolutions jump from 500 to 1000... I went for diagnostics, there are no normal errors. and the revs are jumping, I turned it off, reset all the settings, start everything normal, but a month later the same garbage again. crawled around the Internet and found

Before learning idle speed, the following conditions must be met:

battery voltage is greater than 12.9V (with the engine not running);
the coolant temperature should be 70-99 degrees; The gearbox is warm; the car is in a position close to horizontal; all electricity consumers are switched off. Throttle learning procedure.
You will need a watch with a stopwatch; all time intervals described below must be performed very accurately! turn off the ignition (turn off the engine) after all warm-ups for at least 10 seconds. 1. After making sure that the gas pedal is released, turn on the ignition (key to ON position, do not start the engine) and wait 3 seconds. 2. Within 5 seconds, quickly press (all the way!) and release the gas pedal 5 times. 3. after 7 seconds, press all the way down and hold the gas pedal until the yellow CNECK ENGINE light starts flashing(

10sec) and will not light up continuously(

20 sec). 4. 3 seconds after the lamp constantly lights up, release the gas pedal. 5. start the engine (if it stalls, repeat the start) and wait 20 seconds. 6. Accelerate 2-3 times and make sure that the engine returns to normal idle. Steps 1-5 are performed with the ignition on and the engine turned off. Point 6 - with the engine running. Info taken from 116rusi4 Assembling in reverse order!

I didn't do the training! Using the single menu, I reset it to factory settings and reset the check (it appeared every time the engine was started when reset)

This is the second day I’ve been driving, no receipt! As a bonus, feedback on the pedal has become clearer, and slight dullness has disappeared!

Source

ABS fault detection

You can find out about problems with the ABS by looking at the indicator light on the instrument panel. If it lights up for no reason or does not go out after the required period of time, you need to go to a service station and undergo computer diagnostics. Modern Priora ECUs have a diagnostic connector through which you can easily connect a portable scanner or a stationary motor tester.

All ABS electronics are connected to the mechanical part of the car, so only an experienced diagnostic technician can accurately determine the error that the system produces. ABS error codes start with 0035 and end with 0800. In order to deal with them correctly and determine the reason for the light bulb to light up, you need to have a table of error decoding on hand or resort to qualified help.

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