In this case, there is no need to flash the “brains” of the car. Firmware for the Lada Granta automatic will most likely not help in solving this problem, so you should look for another reason.
Author of the article: Roman Krasinets 07/20/2020 0 0
Error u0100 on a Lada Granta with automatic transmission is a fairly common occurrence. The fault code indicates that communication with the engine control unit is broken. The error is manifested by the Check indicator lighting up, but the car will not start.
Reasons for the error
On Grant, as a rule, the cause of the error is a malfunction of the engine control module - the computer that controls this very engine and its wiring, or the problem directly lies in the bus through which signals pass to the control module. The cause of the malfunction may lie in the control unit itself, which also fails. To check it, there is a scanner that connects to the diagnostic port, and if the unit does not respond to the actions of the scanner, then you will have to change it. In this case, error u0100 on the Lada Granta with automatic transmission should disappear. It is worth making sure that the terminals of the control unit are not oxidized, and the contacts do not require cleaning from dirt.
Electrical equipment
Malfunctions of the electrical equipment of the VAZ 2110 should be responded to as quickly as possible. By the way, this can be signaled by code 1602, although its decoding sounds like a loss of on-board power supply voltage in the RAM.
Sometimes it is enough to reset error 1602, and it will not appear again. Some people call these numbers “good”; 1602 may appear after the battery is disconnected, due to a voltage surge when starting the engine (for example, in cold weather). However, if 1602 “pops up” constantly, you need to look for a network break.
First, try to clean the battery terminals and secure them well. Did not help? Check the circuit, starting from the “ ” battery, be sure to check the fuse and fusible link.
Oxidized battery terminals
And also inspect the mass of the ECU, TPS. There are cases when code 1602 appears due to the fact that the security alarm blocks the controller circuit, and it issues this as an error every time. You should contact the installer of your alarm system.
Self-diagnosis
In order to fix u0100 on a Lada Granta with an automatic or manual gearbox, you need to check the battery charge. The fact is that a low battery charge may not be enough for the normal functioning of the control unit.
The next way to troubleshoot the problem is to inspect the wiring for breaks and short circuits. There is a special device (digital multimeter) that can check the bus for faults. It is worth measuring the resistance of the terminal resistors. It should be about 120 ohms. The resistors themselves are located at the ends of the bus; if they fail, the engine control unit will not work.
Idling
Code 0505 indicates a malfunction of the idle air control. Moreover, 0505 is most often “issued” when the engine is started with the gas pedal pressed. This often affects drivers who switched from a carburetor VAZ 2110 to an injection one.
However, 0505 also occurs if the ignition module, spark plugs are faulty, there are broken wires, or the engine speed is not the one set by the XX regulator.
Idle speed control
If you notice popping noises in the muffler, this may also indicate displacement of the crankshaft ring gear. Code 0505 can be displayed either alone or with 0300 (missing cylinders).
How to reset a fault code
You can reset the u0100 error on a Lada Granta with an automatic transmission using the built-in control system; for this you need to:
- Start the engine and let it warm up to operating temperature.
- Turn off the engine.
- Disconnect the battery terminals for 20 minutes.
- Reconnect the terminals.
- Turn the ignition key to position No. 2 and wait 2 minutes.
- Turn the key to its original position (position – “0”).
Error on Lada Granta panel
In this case, there is no need to flash the “brains” of the car. Firmware for the Lada Granta automatic will most likely not help in solving this problem, so you should look for another reason.
In addition to this error, owners of domestic cars may encounter code p0504. Error p0504 on the Granta automatic is a consequence of a faulty brake pedal sensor. As a rule, a spring fails, which could break, as a result of which the contact pad of the sensor does not return to its original position.
This breakdown can be eliminated in the following way - adjust the position of the sensor itself using a special nut that secures it.
Error codes for the VDO combination on the instrument panel of the VAZ 2110
2 - increased voltage of the on-board network; 3 - fuel level sensor error (if an open circuit of the sensor is detected within 20 s); 4 - error of the coolant temperature sensor (if an open circuit of the sensor is detected within 20 s); 5 - error of the external temperature sensor (if within 20s there are no sensor readings, indication on the LCD is “-C”);
6 - engine overheating (the criterion for triggering the acoustic alarm is met); 7 - emergency oil pressure (the criterion for triggering the acoustic alarm is met); 8 - defect in the brake system (the criterion for triggering the acoustic alarm is met); 9 - the battery is discharged (the criterion for triggering acoustic signaling device is completed); E - error detection in the data packet stored in the EEPROM.
5. If necessary, you can reset error information. To do this, press and hold down the daily mileage reset button for 3 seconds.6. Press any of the control buttons again. All positions of familiar places (segments) should light up on the LCD - the system has returned to the state of paragraph 2.7. If you do not press any control buttons for about 15-30 seconds, the panel enters the operating state.
P0102—Low signal level of the mass air flow sensor (MAF). P0103—High signal level of the mass air flow sensor (MAF). P0112—Low signal level of the intake manifold temperature sensor (ITM). ). P0116—The signal from the coolant temperature sensor (TTOZH) is out of the permissible range.
P0117—Low signal level of the coolant temperature sensor (DTOZH). P0118—High signal level of the coolant temperature sensor (DTOZH). P0122—Low level of the signal level of the throttle position sensor (TPS). P0123—High signal level of the throttle position sensor (TPS). ).
P0130—Incorrect signal from pre-converter oxygen sensor No. 1. P0131—Low signal from pre-converter oxygen sensor No. 1. P0132—High signal from pre-converter oxygen sensor No. 1. P0133—Slow response to enrichment or depletion of pre-converter oxygen sensor No. 1. P0134—No signal (open circuit) of oxygen sensor No. 1 to the converter.
P0135—Malfunction of the heater circuit of the oxygen sensor No. 1 before the converter. P0136—Short to ground of the circuit of the oxygen sensor No. 2. P0137—Low level signal of the oxygen sensor No. 2 after the converter. P0138—High level signal of the oxygen sensor No. 2 after the converter. P0140— Lack of signal (open circuit) of oxygen sensor No. 2 after the converter.
P0141—Fuel supply system (air/fuel mixture) too lean. P0172—Fuel supply system (air/fuel mixture) too rich. P0201—Cylinder 1 injector control circuit open. P0202—Control circuit open. injector of the 2nd cylinder.
P0203—Open circuit for the 3rd cylinder injector control. P0204—Open circuit for the 4th cylinder injector control circuit. P0261—Short circuit to ground of the 1st cylinder injector control circuit. P0262—Short circuit to the on-board power source for the 1st injector control circuit. cylinder. P0264—Short to ground in the 2nd cylinder injector control circuit.
P0265—Short circuit to on-board power source of the 2nd cylinder injector control circuit. P0267—Short circuit to ground of the 3rd cylinder injector control circuit. P0268—Short circuit to the on-board power source of the 3rd cylinder injector control circuit. P0270—Short circuit to ground of the 4th cylinder injector control circuit.
P0271—Cylinder 4 injector control circuit short to source. P0300—Random/multiple misfire detected. P0301—Cylinder No. 1 misfire detected. P0302—Cylinder No. 2 misfire detected. P0303—Misfire detected. in cylinder no. 3.
P0304—Misfire detected in cylinder No. 4.P0327—Knock sensor signal low. P0328—Knock sensor signal high. P0335—Crankshaft position sensor (CPS) signal missing. P0336—Crank sensor signal shaft (DPKV) is outside the permissible limits.
P0337—Crankshaft position sensor (CPS) circuit short to ground. P0338—Crankshaft position sensor (CPS) circuit open. P0340—Camshaft position sensor (CPS) circuit malfunction. ). P0343—High signal level of the camshaft position sensor (DPRV).
P0422—The catalyst efficiency is below the permissible threshold. P0441—Incorrect air flow through the valve. P0443—The canister purge valve control circuit is faulty. P0480—The cooling fan No. 1 relay control circuit is faulty. P0481—The cooling fan No. 2 relay control circuit is faulty.
P0500—Incorrect vehicle speed sensor signal. P0503—Intermittent vehicle speed sensor signal. P0506—Low idle speed (idle speed control is blocked). P0507—High idle speed (idle speed control is blocked). P0560—On-board network voltage below operating threshold systems.
P0562—Undervoltage of the on-board network. P0563—Increased voltage of the on-board network. P0601—Checksum error in the controller ROM. P0603—Error writing/reading the external RAM of the controller. P0604—Error writing/reading the internal RAM of the controller. P0615—Open circuit of the starter relay control circuit. P0616—Short circuit to ground of the starter relay control circuit. P0617—Short circuit to the on-board power source of the starter relay control circuit.
Note: If you are not confident in the straightness of your hands, then you perform all manipulations with the “brains” of the car at your own peril and risk! In this case, the best thing is to visit a good diagnostician!
All fuel-injected VAZ 2110, 2111 and 2112 cars have a function such as self-diagnosis of the instrument cluster and even detection of certain errors with codes displayed on the display.
To start this function, you need to hold down the daily mileage reset button and turn on the car's ignition. So that you don’t have to think for a long time about what and how to do, I advise you to watch the detailed video review that I recorded for this topic. The video was made using the example of a VAZ 2112.
As for decoding errors, I will try to make a text description of them below to make it more clear and accessible to everyone.
- If 0 remains, then there are no errors
- When 1 appears, it indicates a microprocessor malfunction
- Open circuit of the fuel level indicator sensor
- Error 4 - increased supply voltage of the on-board network over 16 Volts
- Error 8 - low voltage, less than 8 Volts
- In case of several malfunctions, a number may be issued simultaneously, which will be the sum of the above codes, for example 6 (2 4), 10 (2 8), 12 (4
or 14 (2 4
or 14 (2 4To be honest, these fault codes are not particularly useful. If we compare it with the readings of special on-board computers, such as STAT, then there is, of course, tens of times more useful information and various data. But we’ll talk about this sometime in future articles.
My devices also turn off when you drive and there is some kind of sound, the fuel level also floats, they blow me exactly the same, nothing helped and I looked at the mass on the handbrake, also zero
On my instruments it shows 3456 on top and 78 on the bottom, what does this mean, please tell me
Engine 21124 16 valve
https://www.youtube.com/watch?v=subscribe_widget
Hello ! Help with the problem, I came to the car yesterday, everything worked, before that I cleaned the injectors. The next day the car started up, but after running for 3-5 seconds it stalled and no more spark, no steering wheel sensor, changed it, then I relieve the pressure in the ramp and try to start it, it starts for 4 seconds and stalls. Where to dig?
Please tell me. I'm getting error 78. VAZ 21124 16v europanel 2007
Hello, my VAZ 10, 8 valves had error 14, I cleared it, do I need to go for diagnostics?
Hello, My VAZ 2110 car will not start. I barely started it with a tugboat, the idle doesn’t work and the throttle doesn’t work, but I need to rev it up, what should I do? Tell me. And error 8 shows how to find this malfunction.
VAZ 2112 16-valve, during self-diagnosis it displays error 818.2... help save what is being done)
Hello, the VAZ 2112 stopped starting, the on-board computer shows error 43210
Who can tell me what error number 8 is?
Common errors on Lada Granta
But these are not the only mistakes that Lada owners encounter. Errors occur on both 8- and 16-valve engines. Here are some of them:
- p0503 – the speedometer is malfunctioning;
- p0422 – catalyst clogged;
- p0600 – the immobilizer does not respond, you should check the wiring;
- error p1701 on the Grant-automatic - faulty power supply circuit.
These are the main codes that Lada Granta owners may encounter. You should not neglect them; you must immediately take measures to eliminate them.
Throttle valve
The on-board computer issues two unpleasant errors - 0122 and 0123 when there is a problem with the throttle sensor. Moreover, 0122 will be displayed if the signal level of this sensor is low, and 0123 – if it is high.
Both one and the other, naturally, are not good. Especially if the on-board computer readings are accompanied by increased idle speeds, jerks at low speeds and dips. In this case, replacing the sensor does not always help.
Throttle position sensor
If codes 0122, 0123 are issued, be sure to check the signal and power wires for breaks, and also pay attention to whether there is any leakage through the injector rings. Remember: the main enemies of DPZD are engine washing and also the manufacturing plant, since there are a lot of defects here.
