How to decipher and eliminate error codes on Chevrolet

Author: Victor

All modern cars allow you to determine a malfunction in the operation of certain systems and units using combinations of errors. Their identification is carried out using diagnostics. In this article, we will look at what Chevrolet Niva error codes are used to report breakdowns.

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Chevrolet aveo from the park zr: the cost of a mistake

January 14, 2022Chevrolet Aveo 1.6

It all started after replacing the camshaft phase shifter gears (ZR, 2022, No. 2). During dynamic acceleration, and sometimes even during steady motion, a warning light came on on the dashboard, informing about malfunction code 89 (high noise level, according to the knock sensor), and the engine lost power.

I went to the dealer, fortunately the warranty was not over yet. The service center specialists carried out initial diagnostics, and they confirmed that the error actually occurs due to noise in the engine.

We ran the engine on obviously high-quality fuel, changed the knock sensor - it didn’t help. After a consultation, the servicemen decided: the noise occurs due to increased gaps in the piston group.

You need to disassemble the engine and carefully check every detail.

The piston group turned out to be in perfect order. But it turned out that the impulse ring on the exhaust camshaft, by which the sensor determines its position, was broken. In addition, the valve springs sagged and their plates were cracked. Some replacement parts were not in stock - the car sat with the engine disassembled for three weeks awaiting delivery.

All efforts were in vain: during a test drive, the lamp came on again. Dealers took a pause to think about it, but it lasted four months. The responses to my calls were like carbon copies - we are waiting for a response from the head office. And I lost my patience.

Having removed the valve cover, I discovered that the ring on the exhaust camshaft was indeed displaced relative to its normal position. Did the service technicians make a mistake during assembly? But then, after carefully examining the parts, I realized the real reason: during installation, the ring cracked and rotated on the shaft.

The second set of stabilizer struts lasted 45,000 km. To identify a worn strut, just put your hand on the stabilizer joint and ask an assistant to rock the car in the transverse direction. Did you feel a backlash coinciding in phase with the knock?

Replace the rack. The second set of stabilizer struts lasted 45,000 km. To identify a worn strut, just put your hand on the stabilizer joint and ask an assistant to rock the car in the transverse direction. Did you feel a backlash coinciding in phase with the knock? Replace the rack.

A camshaft with an impulse ring already installed costs about 9,000 rubles. However, you can save a lot by changing only the ring - on average they ask for a thousand for it.

The ring is pressed onto the shaft with a transitional tension. It is important not to make a mistake in the orientation of the ring. And this is as easy as shelling pears, because there are no marks on the shaft for its orientation. (For those who will do the replacement themselves, the drawing will help.) In addition, there is no collar on the shaft that limits the depth of the upset. My advice: go by the intake shaft.

The position of the camshafts is controlled by a mandrel, which is inserted into the grooves on the shafts. You need to be guided by these grooves in order to correctly install the impulse rings. The position of the camshafts is controlled by a mandrel, which is inserted into the grooves on the shafts. You need to be guided by these grooves in order to correctly install the impulse rings.

There is a scientific basis for the fact that the error was displayed.

When the pulse ring is displaced, the engine control system receives incorrect information about the position of the camshaft, and therefore the phase adjustment devices begin to work incorrectly.

The rear standard shock absorbers were replaced twice at a mileage of 90,000 km due to corrosion of the rods. The car is currently equipped with KYB gas-filled shock absorbers from the Excel-G series. They are slightly cheaper than the original ones - 2900 versus 3200 rubles. The rear standard shock absorbers were replaced twice at a mileage of 90,000 km due to corrosion of the rods.

After such ups and downs, the remaining faults seem trivial. By 90,000 km the rear shock absorbers were leaking. Moreover, this is already the second set - the first pair was changed another 30,000 km.

The reason for failure in both cases is the same - destruction of the chrome coating on the rods. We decided not to mess with the original anymore and installed KYB Excel-G gas-filled shock absorbers.

I hope their rod coating will be more durable.

The second time, the front stabilizer struts also had to be changed. Worn joints made themselves known by knocking noises when driving over small bumps and asphalt joints.

The starter began to make strange sounds when starting the engine. Preventive cleaning and lubrication did not give the expected result. There was a choice: to buy a new one or a refurbished one? We decided not to risk it and bought a new one, since the difference in prices did not exceed two and a half thousand rubles.

Aveo turned out to be one of the most expensive among the editorial cars in terms of cost per kilometer.

But many other editorial cars have gone through all this - and withstood the tests more worthy.

Chevrolet Aveo from the ZR park: the cost of a mistakeChevrolet Aveo from the ZR park: the cost of a mistakeIs there a mistake in the text? Select it with your mouse! And press: Ctrl Enter Administrator

Good level of comfort in the city and on the highway. I'm pleased with the dynamics.

Flaws:

Diagnosis and problem solving

If your car is new enough, the transmission is covered under warranty. Therefore, it is better to contact your dealer for repairs. When diagnosing yourself, follow the recommendations below.

First, visually inspect the crankshaft and camshaft sensors and their harnesses for damage. If you notice broken/deteriorated wires, repair and recheck.

Check the location of the cam and crank. Remove the cam gear and crankshaft balancer and inspect the rings for irregularities. Check that they are not loose or damaged, or cut off by the key that aligns them. If there are no problems, replace the sensor.

If the signal is normal, check that the timing chain/belt is aligned correctly. If they are displaced, it is worth checking whether the tensioner is damaged. Which could cause the chain/belt to slip a tooth or several teeth. Also make sure the belt/chain is not stretched. Then carry out repairs and double-check with a scanner for error P0016.

If you need more specific information about your vehicle, consult your factory service repair manual.

List of obdii errors for cars of the brand:

Similar actions are repeated with the damper and intake manifold device. Then all elements must be wiped with a soft cloth. Use a wrench to loosen the screws securing the damper position controller. The mechanism itself rises and sharply drops down until it stops, and a characteristic sound should be heard.

The damper sensor is set in such a way that the voltage changes when the damper opens. All bolts are tightened with a wrench.

If the device does not work, this will cause error code 18 Chevrolet Aveo to overheat the power unit. It is necessary to test the quality of contacts, wiring and integrity of connectors. Due to the aggressive environment in the engine compartment where the fan is located, the problem is often oxidation of the contact elements on the device connection block or their clogging.

A detailed inspection and cleaning of the pad is required. The cause of the problem may be a faulty safety element or error code 18 Chevrolet Aveo, as well as the wiring itself. A detailed check and testing of the power lines connected to the fan is required.

The problem must be found in the wiring and contacts. If the electrical circuits are intact and there is no short circuit, then the reason may be in the motor control unit. To search for error code 18 Chevrolet Aveo problems, the heating elements of all sensors are diagnosed, since the controller number and its location are not indicated. The problem may lie in the device itself and its poor-quality contact.

The cause of the problem is a malfunction of the thermostat heating element control system or the refrigerant temperature sensor. The problem could also be with the heating element itself or the thermostat relay.

If the device is stuck in the closed position, the cooling of the power unit will be insufficient, which will lead to overheating of the motor.

If the signal from the temperature sensor increases, the contacts and connectors are checked. If the regulator fails, it can cause problems with the engine, including overheating of the coolant.

If the problem is not random in nature and the control line of the device, then it is accompanied by the following symptoms: It is necessary to check the wiring and connector. The problem may be a breakdown of the mechanism's electric motor or its poor contact with the vehicle's electrical network.

If this problem is not related to the operation of the sensor or control unit, then the following steps are performed to eliminate the cause: Then you need to make sure that the electrical outputs of the controllers provide the required connection. To improve the connection quality, the user can bend the contacts on the block.

The faulty unit must be replaced. If the problem is really error code 18 Chevrolet Aveo Place and it is not accidental, it is manifested by the following symptoms: To determine the cause, you need to test the sensor itself, and then diagnose the circuit connected to the regulator. The error indicates problems in the operation of the sensor, in particular, an increased signal coming from.

If the controller itself is working, then to find the cause, it is recommended to check the operation of the compressor device of the air conditioning system. With such an error, it may be difficult to start the engine, up to the impossibility of starting the power unit.

The reason may be welding or burnout of the contact elements on the relay. If this device is operational, then it is necessary to test the safety elements. The problem may be error code 18 Chevrolet Aveo, related error code 18 Chevrolet Aveo EGR valve.

The main reasons that can lead to blocking of the exhaust gas recirculation system valve: If the malfunction is not related to the valve, then you need to visually inspect all lines and pipes of the Chevrolet Aveo exhaust gas recirculation system error code 18 for integrity.

Violation of error code 18 Chevrolet Aveo highways. Hoses can be damaged due to wear or external mechanical influences. In this case, the cause of the malfunction indicates low pressure in the system. It is necessary to test the operation of all sensors, as well as the wiring connected to it.

It is necessary to check the vehicle's electrical network to ensure there are no load surges. For this purpose, the battery and generator device are tested. This device also emits a critically high signal. This signal was received by the control unit from the oxygen controller.

Possible causes of the problem that will allow you to clear the fault code and fix the problem: The oxygen regulator reports that the air-fuel mixture is over-rich, this problem may be associated with the following reasons: If the battery and generator set are operational, then the cause should be sought in the engine control unit or mounting module with fuses and relay.

It is necessary to check the software component of the microprocessor. If the error affects the operation of the engine, gearbox or other units, it is recommended to reflash the device. The microprocessor module reports low voltage detected on the line connected to the device.

The malfunction is caused by an increased voltage level. The cause of the problem may be a disconnected connector or damaged contacts, as well as software problems.

If the module connection is good, the problem should be looked for in the firmware itself. The problem may be shorted contacts or a faulty fuel pump. The operating parameter is more than 16 volts, so the user must perform detailed diagnostics of the operation of the battery and generator. To find the cause, you will also need to diagnose the battery and generator.

The problem may lie in the indicator light itself or its wiring or contacts. Sometimes the error is associated with voltage surges caused by battery faults. This problem can cause the power unit to overheat.

The problem is usually a faulty battery. If its charge is too low, the generator must operate at a higher power to compensate for the discharge. The controller installed on the mechanism sends a critically high signal to the machine control unit.

The signal coming from the sensor is at a critically high or low level. Regardless of the error interpretation, the problem is an increased signal detected on the control and power lines of the sensor. It is necessary to check the wiring and also make sure that there are no voltage surges on the line. The problem may be poor contact.

It is located under the steering column. Now you need to directly connect the error code 18 Chevrolet Aveo cable and then the USB connector. The following programs are considered optimal for use: Error elimination and reset Eliminating ECU errors is sufficient. In the reading program, you need to find the desired fault and decipher it. Then, it is recommended to fix the problem that caused the error.

The last step is reset. It can be found in program tools or actions. After such actions, usually, the car may not start and software adjustment of the equipment or replacement of the entire software as a whole is required.

Therefore, in this case, it is recommended to contact a car service, where they will do everything correctly. Conclusion Errors in the electronic control unit on the Chevrolet Aveo occur quite often.

While driving, the traction disappeared, the dashboard began to flash, the automatic transmission went into emergency mode. Search this forum only?. It is an error related to temperature.

The radiator has a coolant leak. I still have not told error code 18 Chevrolet Aveo if the warranty covers repair. Brother y lo llevaste a la agencia y fue termostato?

I used my scanner but shows no error code. If this error causes the fan in the motor to turn on, it means the thermostat is closed. Same problem with. As soon as I stopped by the OD, the first question from the technician was about whether the fan turns on or not, to which a problem was found in the thermostat.

Thermostat Chevrolet Aveo T300. Checking the heater

However, before such work it is worth checking the thermostat heater. We carry out testing in this order:

1. Turn off the ignition and disconnect the connector from the thermostat heater.
2. Turn on the ignition. We check whether the ECU supplies power to the heater. There should be voltage between the second pin of the connector and engine ground. To check, you can use a test lamp or a multimeter. If there is no voltage, first of all we check the wiring for an open or short circuit.
3. The low signal circuit (pin #1) should show no signs of voltage.

   
   This is how to check the circuit of the heating element in the antifreeze distributor housing

4. Turn off the ignition. We disconnect the contact block from the ECU and check the resistance between contact No. 43 and ground. Resistance should tend to infinity.
5. We check the resistance between contact No. 43 of the ECU connector and contact No. 1 of the thermostat heater connector. The nominal value is a minimum of 5 ohms.
6. If all circuits pass the test, replace the thermostat heater. It is sold separately from the case.

Or we do as described above - throw away the heater and install a Borg Wagner thermostat valve without a heating element. If it is not possible to flash the ECU, install a resistance (150 Ohm) or a relay between the contacts of the heater block.

In this case, a relay is installed; it allows you to avoid having to flash the ECU, although the firmware is more reliable

Conclusion

Errors in the electronic control unit on the Chevrolet Aveo occur quite often. Typically, they are accompanied by a “Check Engine” indicator or a malfunction of one of the systems. So, eliminating errors with your own hands does not always end well, so you should be quite careful when performing the operation. If you are not sure that everything will go smoothly, it is recommended to contact a car service to avoid breakdowns.

You don't have to be a professional automotive diagnostician to read Chevrolet error codes. Having a diagnostic device, you can easily get a list of faults, and then decipher Chevrolet error codes using our list.

During self-diagnosis, the Chevrolet on-board computer (Chevrolet Niva, Captiva, Cobalt, Epica, Lacetti, Lanos, Aveo and others models) can display the following error and malfunction codes:

Reasons for Check Engine

The engine icon on the instrument panel lights up and the driver begins to panic. Why might the Check light come on and what should I do? There is a story circulating among car enthusiasts on this topic: the Check Engine icon lights up - the intuition show begins. But not everything is as bad as it seems at first.

Chevrolet Aveo. The check engine icon on the Chevrolet Aveo dashboard signals that there are faults in the power unit, while the electronic control unit analyzes the data received from the sensors and gives a signal that the fault needs to be repaired.

Before you start panicking, you need to understand the problem. The easiest way to find faults is to connect directly to the ECU and read the errors that are there. By deciphering the error, you can narrow down the troubleshooting area. So, the Check Engine light is on, maybe it’s a faulty sensor, and there’s nothing critical.

But a burning Chevrolet Aveo Check Engine sign may also indicate that the power unit has more serious faults than a banal failed sensor. That is why, after the Check Engine icons light up, you must immediately contact specialists at a car service center.

Tidying with Check. Let's look at the main list of problems that may cause the Check sign on the device to light up:

• Poor quality fuel.
• Spark plugs or high voltage wires.
• One of the sensors is faulty.
• Fuel pump and filter.
• Air supply system to the cylinders.
• ECU and wiring.
• Other malfunctions.

Chevrolet Aveo Sedan (SONIC) LT › Logbook › T300 error codes

15 High brake light malfunction 16 Perform brake light service 18 Left low beam malfunction 19 Rear fog lamp malfunction 20 Right low beam malfunction 21 Left front parking light malfunction 22 Right front parking light malfunction 23 Reverse lamp malfunction 24 Backlight malfunction ki license plate number 25 Left front turn signal faulty 26 Left rear turn signal faulty 27 Right front turn signal faulty 28 Right rear turn signal faulty 84 Engine power reduced 89 Vehicle will need to be serviced soon

P0030 HO2S (sensor 1) Heater circuit inoperative P0036 HO2S (sensor 2) Heater circuit inoperative P0107 Manifold absolute pressure sensor low signal P0108 Manifold absolute pressure sensor high signal P0112 Intake air temperature sensor low signal P0113 Intake Air Temperature Sensor High P0117 Coolant Temperature Sensor Low P0118 Coolant Temperature Sensor High P0122 Throttle Position Sensor Low P0123 Throttle Position Sensor High P0131 HO2S (Sensor 1) P0132 HO2S Signal Low (Sensor 1) P0133 HO2S Signal High (Sensor 1) P0137 HO2S Signal Low (Sensor 2) P0138 HO2S Signal Low (Sensor 2) P0140 HO2S Signal High (Sensor 2) Circuit or Signal Failure P0171 Fuel trim system too lean P0172 Fuel trim system too rich P0222 Idle throttle control actuator circuit low P0223 Idle throttle control actuator circuit high P0261 Cylinder 1 injector circuit low P0262 Cylinder 1 Injector Control Circuit High P0264 Cylinder 2 Injector Control Circuit Low P0265 Cylinder 2 Injector Control Circuit High P0267 Cylinder 3 Injector Control Circuit Low P0268 Cylinder 3 Injector Control Circuit High P0270 Cylinder 4 Injector Control Circuit Low P0271 Cylinder 4 Injector Control Circuit High P0300 Multiple Misfire Detected P0327 Knock Sensor Circuit Malfunction P0335 Crank Position Sensor P0336 Crankshaft Position Sensor Pulse Error P0337 Crankshaft Position Sensor No Signal P0341 Camshaft Position Sensor Out of Range P0342 Camshaft Position Sensor No Signal P0351 Ignition Control Circuit 1 & 4 Malfunction P0352 Circuit 2 Malfunction and 3 ignition controls P0400 EGR, out of control P0401 EGR, EGR valve blocked P0403 EGR valve circuit failure P0404 EGR, EGR valve faulty P0405 EGR feedback circuit low or open P0406 Exhaust Gas Recirculation Feedback Circuit High or Open P0420 Converter Efficiency Low P0444 Canister Purge Valve Circuit No Signal P0445 Canister Purge Valve Circuit Malfunction P0462 Fuel Level Sensor Low Voltage P0463 Fuel Level Sensor High Voltage P0480 Malfunction Cooling fan low speed relay circuit P0481 Cooling fan high speed relay circuit high P0501 Vehicle speed signal missing (manual transmission only) P0510 Throttle position switch circuit fault P0562 System voltage low P0563 System voltage high P0601 ECM checksum error P0604 ECM RAM Error P0605 ECM Write Error P0628 Fuel Pump Relay Circuit Low P0629 Fuel Pump Relay Circuit High P0646 A/C Compressor Relay Circuit Low P0647 A/C Compressor Relay Circuit High P0650 Malfunction Indicator Lamp , circuit low P0656 Fuel level output circuit malfunction P0661 Intake manifold actuator solenoid, circuit low P0662 Intake manifold actuator solenoid, circuit high P0700 TCM general fault, transmission malfunction (only automatic) P1390 Rough road sensor circuit failure (0.8S only) P1396 ABS Rough road sensor, incorrect data P1504 Vehicle speed signal missing (automatic only) P1610 Main relay circuit high P1611 Main relay circuit low P1628 Not installed communication with immobilizer P1629 Incorrect immobilizer calculation P1650 Malfunction indicator lamp, circuit high voltage P2101 Idle charge drive circuit malfunction P2118 Idle charge drive mechanical error P2119 Idle speed control functional error U0101 Transmission controller message missing (automatic only)

Ignition system

Spark plugs and high-voltage wires also do not last forever. They tend to wear out, especially when the car owner does not carry out maintenance on them. One faulty wire and spark plug can be the reason why the Chevrolet Aveo Check Engine light is on.

So, in order to carry out diagnostics, it is necessary to dismantle the elements from the vehicle and use a multimeter to measure the performance of the elements. Also, it is worth doing a visual inspection of the parts for damage to the housing. Replace elements if necessary.

Errors CODE 18, – Chevrolet Aveo club

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Conditions for Clearing DTCs - Type Z This DTC is available in the control module software but is inoperative or disabled.

Diagnostic codes. Manuals ￫ Chevrolet ￫ Aveo (Chevrolet Aveo). Air conditioning compressor signal. Anti-theft signal...

Code Description 15 High brake light faulty 16 Service brake lights 18 Low beam faulty. Deciphering Chevrolet Niva error codes. The DTC history is cleared after 40 consecutive heating cycles without faults.

Combination Explanation P As stated above, code P is a common combination when diagnosing Chevrolet cars. P The control unit has detected a mechanical malfunction of the charge drive at idle speed. P means the receipt of incorrect data to the control unit from the ABS unit.

R, R Problems have been detected in the operation of the injector of the first cylinder. R, R The computer reports incorrect operation of the injectors of the second cylinder.

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R, R The system has detected errors in the operation of the injectors of the third cylinder of the engine. R, R The on-board computer reports incorrect operation of the injectors of the fourth cylinder.

P Combination P is also often found when diagnosing Chevrolet. P means that the system has multiple misfires. The ignition needs to be adjusted.

P, P The exhaust gas recirculation valve is faulty or blocked - the device needs to be replaced. P The control unit informs the car owner about malfunctions in the operation of the ECM - the device provides incorrect data.

R The on-board computer has detected a controller malfunction - the device needs to be reprogrammed. It is an error related to temperature. The radiator has a coolant leak.

I still have not told me if the warranty covers repair. Brother y lo llevaste a la agencia y fue termostato?

I used my scanner but shows no error code. If this error causes the fan in the motor to turn on, it means the thermostat is closed. I have the same problem. As soon as I stopped by the OD, the first question from the technician was about whether the fan turns on or not, to which a problem was found in the thermostat. Un Abrazo desde Colombia.

Troubleshooting Methods

Now that the main reasons have been identified - why the Chevrolet Aveo Check Light caught fire, you can move directly to methods for solving the issue. Of course, it is best to contact a car service to solve the problem, but many motorists, due to expensive repairs, try to solve the problem themselves.

So, before you start looking for a problem, you should connect to the electronic engine control unit and conduct a comprehensive diagnosis of all systems. To do this, you will need a laptop computer, a cable for connecting to the OBD 2 car and software that is suitable for this electronic control unit.

Having connected to the vehicle, it is necessary to carry out a comprehensive diagnosis of all systems, and then determine which errors have popped up and decipher them in order to determine the fault point. When everything is deciphered, you can proceed directly to troubleshooting.

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Deciphering Chevrolet AVEO error codes – Community “Chevrolet Aveo and Sonic (2nd generation)” on

Report a problem with playing the video. Is there a problem if I move so.

In this case, no diagnosis is performed, no DTCs are stored, and the MIL does not illuminate. Clearing Diagnostic Codes Important: Do not clear diagnostic trouble codes unless you receive a service enable message from the diagnostic procedure to do so. Once DTCs are cleared, status and fault history data that can assist in diagnosing intermittent faults will also be erased from memory.

If the fault that caused the DTC to be stored in memory has been corrected, the Operational Diagnostic will begin counting warm-up cycles during which no further faults are detected and the DTC will be automatically cleared from ECM memory. A diagnostic scan tool must be used to clear diagnostic trouble codes.

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Video “How to check a Niva Chevrolet car before buying?”

The Two in Niva channel published a video that clearly demonstrated instructions for self-diagnosis of errors.

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Air supply system

A malfunctioning or clogged throttle body can cause your vehicle's check engine light to flash. In this case, in order to fix the problem, you will have to dismantle the air distribution unit and clean it.

It is worth noting that car mechanics recommend cleaning with a special liquid, but motorists can also use a regular carburetor cleaner. Also, along with the throttle, it is worth cleaning the corrugations that supply air to the unit. As practice shows, it is also often clogged.

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