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P2135 2005 Infiniti G35 Code - Throttle Position Sensor Circuit Range/Performance

Quick Answer

The P2135 code for a 2005 Infiniti G35 refers to a Throttle Position Sensor Circuit Range/Performance issue. Common causes include Faulty TPS: The most common cause of the P2135 code is a malfunctioning throttle position sensor, which may be due to wear and tear or electrical issues, Wiring issues: Corrosion, damage, or poor connections in the wiring harness connecting the TPS to the ECM can lead to circuit range/performance problems, ECM issues: A malfunctioning engine control module can also trigger this code if it is not receiving accurate throttle position data. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2135 2005 Infiniti G35 indicates Throttle Position Sensor Circuit Range/Performance.
Common causes
Common causes include Faulty TPS: The most common cause of the P2135 code is a malfunctioning throttle position sensor, which may be due to wear and tear or electrical issues, Wiring issues: Corrosion, damage, or poor connections in the wiring harness connecting the TPS to the ECM can lead to circuit range/performance problems, ECM issues: A malfunctioning engine control module can also trigger this code if it is not receiving accurate throttle position data.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P2135 2005 Infiniti G35 Description

The P2135 code for a 2005 Infiniti G35 refers to a Throttle Position Sensor Circuit Range/Performance issue. The throttle position sensor (TPS) is a crucial component of the vehicle's electronic control system, as it monitors the position of the throttle valve and sends this information to the engine control module (ECM). The ECM uses this data to determine the appropriate fuel delivery and ignition timing for optimal engine performance. When the TPS circuit is not functioning within the expected range or performance parameters, it can lead to various drivability issues and potentially affect the overall performance of the vehicle.

OBDII Code P2135 2005 Infiniti G35 - Throttle Position Sensor Circuit Range/Performance
P2135 2005 Infiniti G35 Code - Throttle Position Sensor Circuit Range/Performance

Common Causes of P2135 2005 Infiniti G35

  1. Faulty TPS: The most common cause of the P2135 code is a malfunctioning throttle position sensor, which may be due to wear and tear or electrical issues.
  2. Wiring issues: Corrosion, damage, or poor connections in the wiring harness connecting the TPS to the ECM can lead to circuit range/performance problems.
  3. ECM issues: A malfunctioning engine control module can also trigger this code if it is not receiving accurate throttle position data.
  4. Accelerator pedal sensor issues: Problems with the accelerator pedal position sensor can affect the TPS readings and cause the P2135 code.
  5. Throttle body issues: A dirty or malfunctioning throttle body can impact the TPS readings and result in circuit range/performance issues.

Symptoms of P2135 2005 Infiniti G35

  1. Loss of power: The vehicle may experience a noticeable decrease in power and acceleration due to improper throttle position readings.
  2. Rough idle: The engine may idle roughly or inconsistently, leading to a shaky or unstable driving experience.
  3. Stalling: The vehicle may stall unexpectedly, especially when coming to a stop or while idling.
  4. Reduced fuel efficiency: A faulty TPS can cause the engine to run inefficiently, resulting in decreased fuel economy.
  5. Check Engine Light: The illumination of the Check Engine Light on the dashboard is a common symptom associated with the P2135 code, signaling an issue with the throttle position sensor circuit.

How to Fix P2135 2005 Infiniti G35

  1. Diagnose the issue: A thorough diagnostic scan should be performed to confirm the presence of the P2135 code and identify the root cause of the problem.
  2. Inspect the TPS: Check the throttle position sensor for any signs of wear, damage, or malfunction. Replace the TPS if necessary.
  3. Check wiring and connections: Inspect the wiring harness for damage, corrosion, or poor connections. Repair or replace any faulty wiring.
  4. Test the ECM: Verify the functionality of the engine control module by conducting tests to ensure it is receiving accurate throttle position data.
  5. Clear codes and reset: After completing the repairs, clear the diagnostic trouble codes and reset the ECM to see if the issue has been resolved.

Cost to Fix P2135 2005 Infiniti G35

The typical repair costs for addressing a P2135 code in a 2005 Infiniti G35 can range from $200 to $500, including parts and labor. However, it is important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It is advisable to inquire about local rates to obtain a more accurate estimate for this repair.

When is the Code Detected?

The code P2135 is set when the and incorrect voltage is sent to the Engine Control Module (ECM) compared with the signals from Throttle Position (TP) sensor 1 and Throttle Position (TP) sensor 2

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2135 2005 Infiniti G35 Code

1. What does OBDII code P2135 on a 2005 Infiniti G35 mean?

The code P2135 indicates a Throttle Position Sensor Circuit Range/Performance issue on a 2005 Infiniti G35.

2. What are the common symptoms of a P2135 code in a 2005 Infiniti G35?

Common symptoms of a P2135 code may include poor acceleration, reduced engine power, stalling, and the vehicle going into limp mode.

3. What are the possible causes of a P2135 code in a 2005 Infiniti G35?

Possible causes of a P2135 code include a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, or a problem with the throttle body itself.

4. How can I diagnose a P2135 code in my 2005 Infiniti G35?

Diagnosing a P2135 code typically involves using an OBDII scanner to read the code, checking the throttle position sensor's voltage output, inspecting the wiring and connectors for damage, and testing the throttle body for proper operation.

5. Can I still drive my 2005 Infiniti G35 with a P2135 code?

It is not recommended to drive your vehicle with a P2135 code, as it can lead to unsafe driving conditions and potential further damage to the engine or other components.

6. How can I repair a P2135 code on my 2005 Infiniti G35?

Repairing a P2135 code may involve replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, or cleaning and servicing the throttle body.

7. Is it necessary to reset the OBDII system after fixing a P2135 code on a 2005 Infiniti G35?

Yes, it is recommended to reset the OBDII system after fixing a P2135 code to clear the error code and ensure that the issue has been successfully resolved.

8. Can a P2135 code on a 2005 Infiniti G35 be caused by a dirty throttle body?

Yes, a dirty throttle body can sometimes cause a P2135 code by affecting the sensor's readings and performance. Cleaning the throttle body may help resolve the issue.

9. How much does it cost to repair a P2135 code on a 2005 Infiniti G35?

The cost of repairing a P2135 code on a 2005 Infiniti G35 can vary depending on the specific cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

10. Can a P2135 code in a 2005 Infiniti G35 reset on its own?

In some cases, a P2135 code may reset on its own if the underlying issue was temporary or intermittent. However, it is still recommended to diagnose and address the root cause of the problem to prevent it from recurring.

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