Error P2135 is called “Throttle position sensor circuits 1 and 2 plausibility error”. Its appearance is associated with an error in the electronic throttle control, which in modern cars has replaced the mechanical one. Thus, error p2135, as a rule, appears when a large resistance occurs on one of the four wires going to the throttle position sensor (TPS).
Throttle position sensor
Signs of error P2135
Car owners often complain about a lack of traction . That is, in a situation where it is necessary to accelerate the car, the engine does not develop the necessary power. And sometimes the opposite situation arises when, when you press the gas pedal, the speed begins to drop .
Typically, signs of error p2135 are:
- loss of power and acceleration of the car;
- Unstable engine operation at idle;
- difficult starting the engine;
- the engine does not pick up speed above 2000 rpm;
- when starting the engine, the speed increases until the error occurs;
- random reduction of engine speed up to a complete stop;
- arbitrary set of revolutions, both at idle and under load.
Along with error P2135, depending on the specific reasons, other errors also appear related to the incorrect operation of the throttle valve and the corresponding position sensors: P0120, P0122, P0123, P0220, P0222, P0223, P1578.
Error P2135 - Throttle Position Sensor Mismatch
Almost every car owner who has some problems during the operation of his car, throughout the entire time, independently eliminates minor breakdowns, or makes the necessary replacements of any parts. But, unfortunately, sometimes the help of a specialist from a car service is necessary, since car enthusiasts do not have enough skills, experience or knowledge in any of the areas regarding the repair of their vehicle. But don’t worry, because our instructions will help you figure it out and do everything yourself.
Error P2135 is called “throttle position sensor circuits 1 and 2 plausibility error”. It appears due to an error in the electronic control of the throttle valve - something that has replaced mechanics in modern cars. Thus, error p2135 usually occurs due to strong resistance on 1 of the 4 wires that go to the throttle position sensor (TPS).
Device for measuring the position of the flap on the throttle assembly
What does the P2135 code indicate?
Car drivers often complain that there is no traction. Otherwise, when you need to accelerate the car, the engine does not provide the necessary power. But the opposite also happens, when when you press the gas pedal the rpm drops.
As a rule, the following reasons indicate the appearance of error p2135:
- power and acceleration of the car are lost;
- The engine is unstable when idling;
- difficulty starting the engine;
- the engine is not capable of gaining speed above 2000 per minute;
- when starting the engine, the revolutions reach the point where an error appears;
- random drop in engine speed even to a complete stop;
- random increase in speed, both while idling and under load.
Together with error p2135, depending on certain reasons, others may also appear that are associated with incorrect operation of the throttle valve and the corresponding position measuring devices, errors: P0120, P0122, P0123, P0220, P0222, P0223, P1578.
How to check and fix error P2135?
Methods for checking the remote control position measuring device can be reduced to measuring the voltage indicator of the control signal that comes from it, as well as the resistance of the wiring. In the first situation, the voltage should not deviate too much from what is accepted - 5 V. And in the second situation, do not allow a small short circuit. In addition, the quality characteristics of the ECU ground contact are important.
Probable causes and methods of their removal:
- Poor quality of ground contactor of the vehicle ECU. We decide - we improve it.
Schematic illustration of the connection
- Problems in the operation of the main relay. Conclusion - we check its activity, if necessary, replace the manufacturer’s relay from China with a five-pin one from Europe (with an electrical power of 40 A).
- Poor quality of electrical sensor contacts. Conclusion - bend the electrical contacts that are located in the throttle valve connector.
- Small short circuit of circuits VTA1 and VTA2. This will be indicated by a significant deviation (more than 0.2 V) in the voltage of 5 V. Conclusion - we replace the sensor.
- Problems in the operation of the electrophysical throttle device (EMDU). Conclusion - we check whether it corresponds to the standard one. If necessary, we change it.
Possible reasons for the error
Other solution methods
To solve the problem, you can adapt the throttle valves (start the engine at least 30 seconds after turning on the ignition, and the degrees should not be less than plus 7).
diagnose the error with a voltmeter. Thus, the reason for its appearance will be one of two options:
- the differences in the output voltages of VTA1 and VTA2 will be less than 0.02 V for about 0.5 s;
- The output voltage of VTA1 will be less than 0.2 V, and VTA2 will be less than 1.75 V, just over 0.4 sec.
One of the probable reasons for the appearance of error p2135 is a malfunction in the throttle valve sensor (the resistive layer is worn out, contact bounce, small circuits in the VTA1 and VTA2 circuits). Then you need to change the TPS or EMDU.
Changing the TPS on a VAZ 2115 car
A popular cause of error P2135 on VAZ cars
If you have a VAZ car that has an ignition mechanism harness from a Tolyatti company, then we advise you to replace it with one that is of higher quality. If your car is under warranty, let the professionals do the work. The problem lies in the poor quality of the insulation of the wiring that is part of it. An excellent alternative is the mechanism flagellum from PES/SKK JSC.
Rarely, a car's ECU fails and an error signal appears, which then will not be repeated. Then, when changing the TPS, you need to reset the ECU and then initialize it. But, when changing the sensor, you can get by with simply removing the negative terminal from the battery device for ten minutes.
It should be added that the damper position sensor error occurs not only on Russian VAZ 2114 cars, it is often found on Opel Astra, Chevrolet Aveo, Ford Focus.
Bottom line
If error P2135 occurs, the ECU will not go into emergency mode, but only the check lamp will light up, then in this case the car can drive. But it’s better not to drive, since the owner will not be able to give the required speed, and jumping revs when pressing the gas pedal will create an emergency situation.
Let's hope that the above methods can help you troubleshoot problems. But, if you can’t cope on your own, we recommend that you seek help from professionals.
Methods for checking and eliminating error P2135
Methods for checking the remote control position sensor come down to measuring the voltage value of the control signal coming from it, as well as the resistance of the wires . In the first case, the voltage should not deviate much from the accepted 5 V. And in the second, a short circuit should not be allowed. In addition, the quality of the ground contact of the ECU is important.
Possible causes and methods for eliminating them:
- Poor quality of ground contact of the vehicle ECU. The solution is to improve .
Connection diagram
- Problems with the main relay . The solution is to check its operation , and if necessary, replace the Chinese-made relay with a 5-pin European one (40 A current).
- Poor quality of electrical contacts of sensors . The solution is to bend the electrical contacts located in the throttle valve connector.
- Short circuit between circuits VTA1 and VTA2. This is indicated by a significant deviation (more than 0.2 V) of the 5 V voltage. The solution is to replace the sensor .
- Problems in the operation of the electromechanical throttle device (EMDU) . The solution is to check it for compliance with the standard one . Replace if necessary .
Possible causes of the error
How to identify the problem?
When error P2135 occurs, the electronic control unit does not go into emergency mode, but operates as standard. Even with its presence in the car, the check light is simply on. The first thing you need to do when an error occurs is to check the sensor responsible for the throttle position. In many situations, such an alert signals a loss of performance specifically for her. It may happen that the sensor itself has failed. In this situation, you just need to replace it with a new one. The method of diagnostic measures when the sensor is not working consists of the following actions:
- Eliminate possible violations in the ECU contacts;
- Check the contact connection of the sensors;
- Check the functionality of the main relay;
- Make sure there are no problems with the electromechanical throttle device.
Additional solution methods
Also, to solve the problem, you can adapt the throttle valve (start the engine at least 30 seconds after turning on the ignition, while its temperature should not be lower than +7°C).
The error can be diagnosed using a voltmeter. So, the cause of its occurrence can be one of two situations:
- the difference between the output voltage of VTA1 and VTA2 is less than 0.02 V for more than 0.5 s;
- The output voltage of VTA1 is less than 0.2V and VTA2 is less than 1.75V for more than 0.4s.
One of the possible causes of error p2135 is a malfunction of the throttle sensor (wear of the resistive layer, “contact bounce”, short circuit between circuits VTA1 and VTA2). In this case, it is necessary to replace the TPS or EMDU.
Replacing TPS on a VAZ 2115 car
Common cause of error P2135 on VAZ cars
If you own a VAZ car with an ignition system harness manufactured at the Tolyatti plant, it is recommended to replace it with a better one. If your car is still under warranty, entrust it to the specialists. The problem lies in the low quality of the insulation and wires included in its composition. An excellent alternative would be the ignition system harness produced by PES/SKK CJSC.
Occasionally, the car's ECU malfunctions and a one-time error signal may appear, which subsequently does not repeat. In this case, as well as in the case of replacing the TPS, it is necessary to reset the ECU and then initialize it. However, when replacing the sensor, you can get by by simply removing the negative terminal from the battery for 10 minutes.
I would like to note that the error in the remote control position sensor is typical not only for our domestic cars, such as the VAZ 2114. It often worries the owners of the Opel Astra, Chevrolet Aveo, and Ford Focus.
Granta I484GI06 error P1578
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I read the firmware, it was stock, I changed the mass air flow sensor for a new one, it doesn’t help, the problem is the air flow is 18 - 20 kg, and the error for the air flow sensor is P1578 (erased and appears again), has anyone encountered this? Which direction should I look? all other parameters are normal, the car drives and responds to the gas, but when you rev the throttle suddenly it stalls, it floods when you rev the gas, there is black smoke
Could the problem be with the ECU? but how to determine? Use an oscillator to record the signals coming to the mass air flow sensor and the throttle? Is there somewhere I can get a standard signal when the ignition is on?
I got excited about all the parameters, I meant the main timing belt, fuel pressure, dis system, but I didn’t remove the signals from the pedal and throttle control, why I created the topic, apparently there should be a typical fault P1578, but why is the air flow 18-20.
Denasty
Artisan
What are the corrections for DC1?
there is no replacement ECU, there is no water - yesterday I removed it, the corrections were negative, P1578 - I picked the throttle connector - the error is erased, and the error does not appear, it responds to gas, but the mass air flow sensor is 20 kg, injection - 5.5 -6 ms. Regarding the connectors, they write everywhere to solder them, but what about soldering them? Why, the connector is just like a connector, it shines beautifully, I pressed the contacts with an awl. Or is it crimped not onto copper but onto insulation? I didn’t disassemble it, I didn’t remove the wires from the connector, I removed the lilac plastic plugs from the connectors
I see they did noise insulation, sealed the body with STP, maybe somewhere the mass was screwed on poorly, so far I have had little experience with grants, can anyone tell me where the masses of the ESD harness are? I found the mass, it’s ok
Could there be a problem with the built-in eeprom? maybe rewrite it to a clean, untrained one? although I did the initialization
Denasty
where can I get information about what signals should come to the MAF pins when the ignition is on?
Denasty
Attachments:
M 74 parameters.rar
Domnik
thanks Domnik, but this is XX, and it would be necessary with the ignition on, I think you need to measure the connector to the mass air flow sensor, which comes to it when the ignition is on, but you need to know what it should be.
Added after 54 minutes
size downloaded from the car - 768 kb, size downloaded from the site - 832 why?
Added after 1 hour 12 minutes
I solved the problem, what was the matter, the client washed the throttle himself, he says that he only sprayed it, did not press the valve, but. but when I was resetting the adaptations, I began to notice that the remote control clicked somehow quietly, not as usual, I took it apart and saw several teeth eaten, on plastic gears, installed a new remote control - air flow 8 - 9, injection - 3.6 , in general, that’s what we did, thanks to everyone who responded
