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P2135 2008 Nissan Pathfinder Code - Throttle Position Sensor Circuit Range/Performance

Quick Answer

The P2135 diagnostic trouble code (DTC) for a 2008 Nissan Pathfinder indicates a problem with the Throttle Position Sensor (TPS) circuit. Common causes include Faulty throttle position sensor, Wiring or connector issues in the TPS circuit, Corrosion or contamination in the TPS sensor. 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 2008 Nissan Pathfinder indicates Throttle Position Sensor Circuit Range/Performance.
Common causes
Common causes include Faulty throttle position sensor, Wiring or connector issues in the TPS circuit, Corrosion or contamination in the TPS sensor.
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 17, 2024
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Code P2135 2008 Nissan Pathfinder Description

The P2135 diagnostic trouble code (DTC) for a 2008 Nissan Pathfinder indicates a problem with the Throttle Position Sensor (TPS) circuit. The TPS is a crucial component of the vehicle's electronic throttle control system, responsible for monitoring the position of the throttle pedal and sending this information to the engine control module (ECM). The ECM uses this data to adjust the air-fuel mixture and control the engine's performance.

OBDII Code P2135 2008 Nissan Pathfinder - Throttle Position Sensor Circuit Range/Performance
P2135 2008 Nissan Pathfinder Code - Throttle Position Sensor Circuit Range/Performance

Common Causes of P2135 2008 Nissan Pathfinder

  1. Faulty throttle position sensor
  2. Wiring or connector issues in the TPS circuit
  3. Corrosion or contamination in the TPS sensor
  4. ECM software or calibration issues
  5. Mechanical problems with the throttle body

Symptoms of P2135 2008 Nissan Pathfinder

  1. Rough idling or stalling
  2. Hesitation or lack of response when accelerating
  3. Engine misfires or poor performance
  4. Illumination of the Check Engine Light
  5. Limp mode activation (limited speed and performance)

How to Fix P2135 2008 Nissan Pathfinder

  1. Begin by diagnosing the TPS circuit using a scan tool to confirm the P2135 code and check for any related codes.
  2. Inspect the throttle position sensor, wiring, and connectors for any visible damage, corrosion, or loose connections.
  3. Test the TPS sensor's resistance and voltage output to determine if it is functioning correctly.
  4. If the TPS sensor is faulty, replace it with a new OEM or high-quality aftermarket part.
  5. Clear the DTC codes, reset the ECM, and perform a test drive to ensure the issue has been resolved.

Cost to Fix P2135 2008 Nissan Pathfinder

The typical repair costs for addressing a P2135 code on a 2008 Nissan Pathfinder can range from $150 to $300, including parts and labor. However, 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. It is advisable to check local rates for a more precise estimate. Keep in mind that using OEM parts may result in higher costs compared to aftermarket options.

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 2008 Nissan Pathfinder Code

1. What does the OBDII code P2135 mean on a 2008 Nissan Pathfinder?

The P2135 code indicates that there is a problem with the throttle position sensor's circuit regarding its range or performance. This sensor measures the position of the throttle in the engine, sending signals to the engine control unit.

2. What are the common symptoms of code P2135 in a 2008 Nissan Pathfinder?

Symptoms include erratic engine behavior such as sudden stalling, rough idling, a lack of power, and the engine failing to respond to the acceleration pedal. The check engine light will also illuminate.

3. What causes the P2135 code to appear on a 2008 Nissan Pathfinder?

Common causes include a faulty throttle position sensor, poor electrical connections at the throttle position sensor, or a damaged throttle body. Issues with the wiring harness related to the sensor circuit can also trigger this code.

4. Can I drive my 2008 Nissan Pathfinder with the P2135 code?

While you might be able to drive, it is not advisable. Driving with this code can lead to unpredictable vehicle behavior and potentially dangerous situations. It is best to address the issue promptly.

5. How is the P2135 code diagnosed in a 2008 Nissan Pathfinder?

Diagnosis involves using an OBD-II scanner to confirm the code, visually inspecting the throttle body, throttle position sensor, and associated wiring. A technician might also test the sensor's function with a multimeter to check for proper voltage and resistance levels.

6. What repairs can fix the P2135 code in a 2008 Nissan Pathfinder?

Repairs might include replacing the throttle position sensor, repairing or replacing damaged wiring, or cleaning or replacing the throttle body if it is malfunctioning.

7. What should I check first when troubleshooting the P2135 code in a 2008 Nissan Pathfinder?

Start by checking the throttle position sensor and its connections for any signs of damage or loose connections. Also, inspect the wiring harness for any visible signs of wear or damage.

8. Is it expensive to fix the P2135 code in a 2008 Nissan Pathfinder?

The cost can vary widely depending on the specific repair needed. Replacing a throttle position sensor can be relatively affordable, but more extensive electrical repairs or replacing the throttle body can be more costly.

9. Could a P2135 code be triggered by anything other than the throttle position sensor itself in a 2008 Nissan Pathfinder?

Yes, although the throttle position sensor is a common cause, issues like a malfunctioning powertrain control module (PCM) or problems with other sensors like the accelerator pedal position sensor can also trigger this code.

10. How often does the throttle position sensor need to be replaced in a 2008 Nissan Pathfinder?

The throttle position sensor does not have a regular replacement schedule and should only need to be replaced if it fails or contributes to an issue like the P2135 code. Regular inspections during routine maintenance can help catch potential problems early.

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