What is OBD-II Code P2035 – Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 2
If you own a vehicle with an onboard diagnostics (OBD-II) system, you may have already experienced seeing a check engine light on your dashboard. OBD-II is a computer system that monitors your vehicle’s performance and detects any problems. When something is not functioning optimally, the system triggers a code that tells the driver what the issue is. One of those codes OBD-II can display is P2035. In this article, we will explore what P2035 means, how to identify the cause, and how to repair the issue.
What is P2035 Code?
P2035 code is an error code that signifies an issue with the exhaust gas temperature (EGT) sensor circuit of the engine’s bank 2, sensor 2. EGT is a crucial measurement of the exhaust gas’s temperature, and this sensor measures this value. Signal low indicates that the sensor is returning a too low voltage signal to the vehicle’s computer. When the EGT sensor’s signal voltage drop below the specific level, it will trigger an error code, and the check engine light will illuminate.
What Causes P2035 Code?
The EGT sensor may fail due to several reasons. Common causes include damaged or corroded wiring, a failed sensor, or a failed computer. Other possible contributors include:
1. High exhaust temperatures: When the exhaust system temperatures are too high, it may damage the EGT sensor and cause P2035.
2. Faulty wiring: Damaged, loose, or corroded wiring can send the incorrect voltage signal to the computer, resulting in a P2035 code.
3. A failed sensor: After an extended period of use, the sensor itself can deteriorate, resulting in a low voltage signal.
4. Computer problems: The computer that reads the EGT signal and displays data on the dashboard may have a problem that triggers a low voltage signal.
5. Exhaust leaks: Any leaks in the exhaust system can cause sensors to measure incorrect values, leading to a low voltage signal being returned to the computer.
Diagnosing P2035 Code
To diagnose the issue, it is essential to use appropriate diagnostics equipment, such as a code scanner, a multimeter, and an oscilloscope. Follow these steps:
1. Connect the code scanner to the OBD-II port of the car and retrieve the error code to confirm the presence of the P2035 fault code.
2. Inspect the sensor wiring and connectors to identify any issues.
3. Use a multimeter to check the sensor’s resistance. The readings should be between 8 to 18 ohms.
4. Use an oscilloscope to check the voltage waveform of the sensor output to the computer.
5. Inspect the exhaust system for any leaks.
Repairing P2035 Code
Repairing P2035 Code depends on the cause. Here are several solutions to the problem:
1. Repair or replace faulty wiring or connectors.
2. Replace the failed EGT sensor.
3. Fix any exhaust leaks in the system.
4. Replace the computer if it is failing or has malfunctioned.
5. Replace the catalytic converter or exhaust manifold if the temperatures have exceeded safe operating parameters causing damage to the sensor.
FAQs
1. What happens if I don’t repair a P2035 code?
If you do not repair P2035, the check engine light will stay illuminated until the problem is fixed. In addition, the vehicle may experience reduced fuel efficiency and performance, leading to more significant damage over time.
2. Can I drive my vehicle with P2035 code?
Yes, you can drive the car with P2035 code, but it is not advised. The error code means that something is wrong with the sensors, which could lead to unwanted damage and expensive repairs.
3. Can I fix P2035 Code myself?
If you have the proper equipment and professional experience, you can fix P2035 code yourself. Yet, it’s best to consult a highly trained mechanic in engine systems.
4. How long does it take to fix P2035 Code?
The time taken to fix P2035 Code varies depending on the cause. In general, it can take between a few minutes to several hours.
5. How much does it cost to repair P2035 Code?
The cost of repairing P2035 will vary depending on multiple factors, including the severity of the issue and the model and make of the vehicle. On average, the repair cost ranges from $100 to $500.
Conclusion
If you notice the check engine light with the OBD-II code P2035, it is essential to diagnose the issue promptly. The problem could be anything from a failed sensor, faulty wiring, or damaged computer, and it will require repairs. If left unchecked, it could result in a plethora of associated issues with the engine system. By following the steps outlined in this article, you can investigate the issue and apply the appropriate solutions to repair the failed component.