P2035 code — how to fix error fast

Vehicles with diesel-powered engines often face issues with codes like the P2035 and these are mostly related to gas emissions. If you faced this code yourself, there are some ways of solving the issue without going over the line with the repair bills or having to replace any vital components.

However, it takes knowing a bit more about the P2035 code meaning and ways of diagnosing the code to get there. To cut your worries short, our team of dedicated experts will help you examine your car in pursuit of the common reasons behind the code, diagnose the problem, and fix the issue as soon as possible.

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What does the P2035 code mean?

The P2035 code is a diagnostic trouble code that indicates a problem with the exhaust gas temperature sensor circuit. This code is typically found in newer vehicles with diesel engines. It is important to understand this code because it can cause serious damage to your vehicle if left unaddressed.

If the exhaust gas temperature sensor goes bad, your car’s control module may not be able to properly control the combustion process and that could lead to combustion timing issues.

What causes the P2035 code?

There are several potential causes of the P2035 code. One common cause is a faulty exhaust gas temperature sensor. Another cause can be a damaged or corroded wiring harness that connects the sensor to the engine control module. We can go on and on since the code can be triggered by a variety of issues, but these are the most common ones:

Faulty exhaust gas temperature sensor

The exhaust gas temperature sensor measures the temperature of the exhaust gas as it exits the engine. A faulty sensor can cause the P2035 code to appear. Symptoms of a faulty sensor include reduced engine performance, decreased fuel efficiency, and engine misfires.

Damaged or corroded wiring harness

The wiring harness that connects the exhaust gas temperature sensor to the engine control module can become damaged or corroded over time. This can cause the P2035 code to appear. Symptoms of a damaged or corroded wiring harness include intermittent engine issues, rough idling, and reduced fuel efficiency.

Faulty engine control module

The engine control module is responsible for regulating the exhaust gas temperature sensor. A faulty module can cause the P2035 code to appear. Symptoms of a faulty engine control module include reduced engine performance, engine misfires, and decreased fuel efficiency.

Which car models does the P2035 code affect the most?

Diesel engines are typically more prone to producing higher exhaust gas temperatures than gasoline engines. As a result, diesel-powered vehicles may have a higher chance of experiencing issues with the code P2035, so these are the car models that are most susceptible to this code:

• Volkswagen Jetta: The Volkswagen Jetta model with a TDI engine is susceptible to the code P2035 due to frequently failing EGT sensors.
• Volkswagen Passat TDI: The Passat shares a lot of turbo-diesel powertrain options with the Jetta and these are all plagued by the same issue with the exhaust gas temperature sensors.
• Audi A3: This model is known to have faced issues with code P2035 due to damaged wiring and connections.

How to diagnose the P2035 code

To diagnose the P2035 code, you will need specialized diagnostic tools. These tools include a scan tool and a multimeter. The scan tool will help you read the code and identify the root cause of the issue. The multimeter will help you test the wiring harness and the sensor to determine if they are functioning properly. With this in mind, these are the main ways of diagnosing the code P2035:

Conduct a diagnostic scan

The first step in diagnosing any OBD2 code is typically to connect an OBD2 scanner to the vehicle’s onboard diagnostic system. This tool will read the code and provide information about the specific parameters that triggered it.

Checking the EGT sensor

One common cause of the P2035 code is a faulty EGT sensor. A mechanic may use a multimeter or other diagnostic tool to check the sensor’s resistance and ensure that it is functioning correctly.

Inspecting wiring and connections

Damaged or corroded wiring, as well as loose or damaged connectors in the EGT sensor circuit, can also trigger the P2035 code. A mechanic may inspect these components for signs of damage and perform continuity checks to ensure that they are properly connected.

How to fix the P2035 code

There are several ways of fixing the code P2035 in case something goes wrong with it in your car. Once you are done diagnosing the issue, you can pinpoint the exact problem causing the code and apply one of the following solutions:

Replacing the EGT sensor

If the EGT sensor is found to be faulty or damaged, a mechanic may replace it with a new one to restore proper function.

Repair the damaged wiring and connections

If damaged wiring or connectors are found in the EGT sensor circuit, a mechanic may repair or replace these components to ensure proper connectivity.

Replacing the ECM

In rare cases, a malfunctioning engine control module (ECM) may be responsible for triggering the P2035 code. If this is the case, a mechanic may need to replace the ECM to restore proper function.

Clearing the codes and resetting the system

Once the underlying issue has been resolved, a mechanic can use an OBD2 scanner to clear the P2035 code from the engine control module (ECM) and reset the system.

How to prevent the P2035 code

Routine maintenance can help prevent the P2035 code from appearing. This includes regular oil changes, air filter replacements, and fuel system cleanings. Additionally, proper use and care of your vehicle can help prevent the code from appearing. Here are some of the main preventive steps you can take:

• Regular oil changes
• Air filter replacements
• Fuel system cleanings
• Proper use and care of your vehicle

By doing these on time, you can avoid having to deal with the code P2035 ever again and it’s possible to prevent it from re-occurring this way.

Our take

It’s important to understand the P2035 code to keep your vehicle running smoothly. By knowing the potential causes, diagnoses, fixes, and preventative measures for the P2035 code, you can avoid costly repairs and keep your vehicle in top condition.

Remember, if you are unsure of how to diagnose or fix the issue, seek professional help from a certified mechanic.