Using the built-in controller, drivers can identify the main error codes for Priors 8 and 16 valves on their own. The procedure is carried out using a built-in computer or a connected device. Almost all modern cars are equipped with a system of various sensors that monitor the condition of automotive components. The bottom line is that the functionality of many working units directly depends on the correct functioning of the existing sensors.
On the other hand, turning off some indicators may not affect the operation and movement of the car, and malfunctions are detected much later, when the negative consequences of deactivating the sensors appear. Symptoms of the indicators turning off include unstable engine operation, excessive fuel consumption, and excessive wear of parts.
Self-diagnosis using BC
The owner can identify the main error codes of Priora 8 and 16 valves using the built-in controller and on-board computer (BC), without resorting to the services of car service diagnosticians. To do this, you must activate the vehicle testing option. The arrows on the instrument panel move to the maximum possible position. Further manipulations are performed in the following sequence:
- The ignition is turned off and the daily mileage reset button is activated. Then the ignition is turned on again with the button held down;
- After this, all the icons on the instrument panel should light up, and the arrows of the control devices should begin to move from zero to maximum values. This behavior indicates the normal functioning of all sensors;
- On the right steering wheel switch there is a key for selecting BC functions. After pressing it, information about the software category will appear on the display;
- You should press this button again, combinations of problems will be displayed on the monitor. If necessary, error information is also reset here. To do this, hold down the mileage reset button for a few seconds.
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.
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.
Code meanings for self-diagnosis
Using the on-board computer, the driver can determine the following faults:
- Code “ 2
” – excessive voltage in the on-board network. To eliminate it, you need to check the main electrical circuits; - The number “ 3
” indicates a malfunction of the fuel control indicator; - «4
» – problems with the refrigerant temperature sensor; - The number “ 5
” means incorrect operation of the environmental indicator; - Code “ 6
” means engine overheating; - «7
» – critical lubricant pressure; - The number “ 8
” indicates a malfunction in the brake system; - «9
» – signals that the battery is low; - The " E
" symbol indicates a problem with the packet data.
It is worth noting that if the BC options switch key is inactive for more than 10 seconds, the instrument panel will return to normal operation.
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.
Checking with a plug-in tester
More accurate and comprehensive diagnostics can be performed using a connected computer or a special tester. However, the data displayed on the screen is alphanumeric. The letters have the following meaning:
- P
– errors in the operation of the electronic systems of the power unit; - C
– problems with the functioning of the chassis; - B
– electronic malfunctions in the cabin; - U
– joint system errors.
In addition, the number 0 means OBD code 2, numbers 1 and 2 indicate the enterprise code, and 3 is the backup password.
Basic ignition system
(the letter P precedes the digital designation):
- 0300
– no spark in the cylinders of 16 valves; - 0326
– defect or short circuit in the knock indicator circuit; - 0337
– difference of the crankshaft controller to ground; - 0343
– high level in the headlight sensor circuit 0342 – a similar low indicator; - 0422
– signaling device malfunction; - 0444, 0445
– failure of the adsorber valve; - 0480, 0481
– problems with the fan assembly.
Fuel-air system
(the letter P is located before the numbers):
- 0030
– open circuit between the oxygen indicator and the exhaust gas converter; - 0116
– problems with thermal control of the cooling fluid; - 0102
– error in the air flow control circuit; - 0201, 0202, 0203, 0204
– break in the injector wiring; - 0217
– overheating of the power unit; - 0172
– excess amount of air,
0171
– gasoline, in the fuel mixture; - 0230
– malfunction of the electric fuel pump; - 0266 0269, 0270, 0272, 0274
– problems with injector drivers.
In principle, diagnostics using BC makes it possible to identify the main faults. Basic error codes for Priora 8 and 16 valves using a plug-in tester provide significantly more information. To understand it, you should study the decoding of indicators, which is not so difficult.
Where is the Priora crankshaft sensor located?
The device is located in the engine compartment next to the oil filter. The sensor housing is secured with just one “10” bolt in a special socket to the right of the generator drive pulley.
Features of work
The operation of the device is based on the Hall effect. The measurement principle is based on the principles of conductivity, the variability of its level depending on the approach or distance of metal products. For this reason, the working, sensitive part of the sensor is inserted into the generator drive pulley.
- magnetic, induction products;
- classic type;
- optical type.
Diagnostics using the built-in BC
To view the error codes, you need to find the daily mileage reset button on the dashboard, press it and, holding it, turn the ignition key. The self-diagnosis mode will turn on. All arrows on the instruments should move from minimum to maximum values and back, and all positions on the LCD display should light up. You need to look: if any position does not light up or the arrow on any device does not move, then you should check the corresponding sensors, their networks or display for malfunctions.
Priora on-board computer
In the same mode, press any button for switching modes of the built-in BC 2 times, after which digital codes may appear on the liquid crystal display:
- 2 - very strong voltage in the BS;
- 3 - errors in the fuel level sensor system in the gas tank;
- 4 - error in the coolant temperature sensor system;
- 5 - error in the air temperature sensor system outside the car;
- 6 — motor overheating;
- 7 — emergency low oil pressure;
- 8 - malfunctions in the brake system;
- 9 - battery is low;
- E - error in the data packet stored in the EEPROM.
Many drivers ask how to reset error codes on a Lada Priora. Perhaps their built-in BC is faulty, since a working on-board computer automatically exits the diagnostic mode after 30 seconds if you do not press any control buttons.
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:
- Inspect the catcollector. Its body must be free of mechanical damage.
- If any defects are found, it must be replaced.
- 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.
Checking using a connected computer or tester
Driver Information Panel
Checking system malfunctions using connected devices gives more accurate results, but at the same time requires deciphering special codes. For example, the monitor displays code p0441 or p0130 or error p0422. Oh, these car manufacturers, in human language they could write “replace the oxygen sensor” instead of P0130 or “check the canister valve” instead of P0441. But nothing can be done, the Lada Priora is also intended for export, so it is easier to write p0441 in the program than to give explanations in Russian, Kazakh, Arabic, Armenian and 10 other languages. And then attach special tables that indicate the meaning of certain codes. Just look at them and everything will become clear. But these tables are not included with the operating instructions. Either way, you can check them out below.
All fault codes for Lada Priora car systems consist of 5 characters. Here is a breakdown of Prior's errors.
The Latin letter comes first:
- P - error in the electronic systems of the motor;
- C - error in the electronic systems of the chassis;
- B - error in interior electronics;
- U is an error in the joint operation of different systems.
Next comes the number:
- 0 - OBD-2 code;
- 1 - enterprise code;
- 2 - enterprise code;
- 3 - reserve code.
The system indicates an error
The next digit indicates the system in which the malfunction was found:
- 0 — exhaust;
- 1, 2 — fuel and air supply system;
- 3 - ignition;
- 4 - additional control;
- 5 — idle system;
- 6 - ESC;
- 7, 8 - transmission.
The last 2 digits indicate the serial number of the fault.
Troubleshooting
There are several methods for troubleshooting the problem, but together they constitute a complete diagnosis of the car for faults in the coolant temperature sensor. After all, error number 4 gives a signal about exactly this. You can fix it like this:
- First we check the sensor to see how well it functions. It copes with the assigned tasks, there are no complaints about the speed and clarity of data transmission - let's move on to the next point. Does not respond to signals - most likely, it is completely broken and requires replacement.
- This is followed by checking for contact and absence of plaque. If a problematic connection is identified, the sensor will have to be replaced with a new one. And if the surface is covered with plaque, it is necessary to thoroughly clean the seat.
- Now you can move on to the on-board circuit, make sure that there is contact there.
- The remaining dilemmas usually lie in electronics, for this reason the car is taken to a specialist who can adjust the device. Usually in such a situation the ECU is re-flashed, which means that errors are prudently reset.
The issue of eliminating error 4 can be solved on your own, but not in one hundred percent of cases. Sometimes you have to turn to specialists to perform work that requires specific knowledge and skills. But it would be right to try to prevent a breakdown, since most often it occurs after a long period of parking in the cold in an open area (that is, not in a garage or covered parking).
Deciphering faults in the fuel and air systems
- P0030 - the oxygen sensor heater wire to the exhaust gas converter has broken;
- P0031 - the same electrical wire has shorted to ground;
- P0032 - the same wire has shorted to the on-board network (BS);
- P0036 - the wiring of the oxygen sensor heater is broken, after the converter;
- P0037 - the same wiring has shorted to ground;
- P0038 - it has shorted to BS;
- P0102 - weak signal in the mass air flow sensor network;
- P0103 - very strong signal in the network of this device;
- P0112 - weak signal in the air temperature sensor network;
- P0113 - very strong signal in the network of the same device;
- P0116 - antifreeze temperature sensor signal is out of operating range;
- P0117 - poor signal from the antifreeze temperature sensor network;
- P0118 - very strong signal from the antifreeze temperature sensor;
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.
Malfunctions of auxiliary systems and ignition
Camshaft sensor location
P0337 - crankshaft sensor shorted to ground;
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