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P2135 Infiniti Code - Throttle Position Sensor Circuit Range/Performance

Quick Answer

The P2135 code in an Infiniti vehicle indicates an issue with the Throttle Position Sensor (TPS) circuit. Common causes include Worn or damaged TPS sensor, Corroded or loose wiring connections, Faulty ECM. 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 Infiniti indicates Throttle Position Sensor Circuit Range/Performance.
Common causes
Common causes include Worn or damaged TPS sensor, Corroded or loose wiring connections, Faulty ECM.
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 07, 2024
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Code P2135 Infiniti Description

The P2135 code in an Infiniti vehicle indicates an issue with the Throttle Position Sensor (TPS) circuit. The TPS is a sensor located on the throttle body that monitors the position of the throttle valve. It sends a signal to the engine control module (ECM) to determine the throttle opening and adjust fuel injection and ignition timing accordingly. When the ECM detects that the TPS signal is outside of the expected range or is not performing within specified parameters, it triggers the P2135 code.

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

Common Causes of P2135 Infiniti

  1. Worn or damaged TPS sensor
  2. Corroded or loose wiring connections
  3. Faulty ECM
  4. Throttle body issues
  5. Poor electrical grounding

Symptoms of P2135 Infiniti

  1. Engine hesitation or surging
  2. Reduced fuel efficiency
  3. Check Engine Light illuminated
  4. Limited throttle response
  5. Rough idling or stalling

How to Fix P2135 Infiniti

  1. Begin by conducting a thorough inspection of the TPS sensor, wiring, and connections for any visible damage or corrosion.
  2. Test the TPS sensor using a multimeter to check for proper voltage output as the throttle is opened and closed.
  3. If the TPS sensor is faulty, replace it with a new OEM sensor to ensure compatibility and performance.
  4. Clear the diagnostic trouble codes from the ECM using a scan tool and perform a test drive to verify that the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be necessary to identify any underlying electrical or ECM issues.

Cost to Fix P2135 Infiniti

The cost of repairing a P2135 code in an Infiniti vehicle can vary depending on the specific model, the extent of the issue, and the labor rates at the repair shop. On average, the cost of replacing a TPS sensor can range from $100 to $300, including parts and labor. Additional diagnostic testing or repairs may incur extra charges. It is recommended to consult with a certified mechanic or dealership for a more accurate estimate based on your vehicle's specific needs.

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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Information for Specific Infiniti Models

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 Infiniti Code

1. What does the OBDII code P2135 mean on an Infiniti?

P2135 indicates a problem with the throttle position sensor (TPS) circuit range or performance. It occurs when the ECM detects a mismatch between the throttle position sensor signals.

2. What are the symptoms of code P2135 in an Infiniti?

Common symptoms include reduced engine power, hesitation while accelerating, poor throttle response, the engine going into limp mode, and the check engine light turning on.

3. What causes the P2135 code to appear in an Infiniti?

Typical causes include a faulty throttle position sensor, wiring issues such as corrosion or damage, a dirty throttle body, or a failing electronic throttle control (ETC) system.

4. Can a dirty throttle body trigger the P2135 code?

Yes, a dirty or clogged throttle body can cause incorrect readings from the throttle position sensor, which may trigger the P2135 code.

5. How do I troubleshoot the P2135 code on my Infiniti?

First, inspect the throttle body and TPS for dirt or damage. Then, check the wiring and connectors for corrosion or loose connections. If no issues are found, test the voltage signals from the TPS.

6. Is it safe to drive with the P2135 code on my Infiniti?

Driving with this code is not recommended, as it can cause sudden loss of power or the engine entering limp mode, potentially leading to unsafe driving conditions.

7. How much does it cost to fix the P2135 code on an Infiniti?

Repair costs can vary but typically range from $100 to $500, depending on whether the issue is with the throttle body, TPS, or wiring.

8. Can the P2135 code be fixed without replacing the throttle position sensor?

In some cases, cleaning the throttle body or repairing damaged wiring can resolve the issue without replacing the sensor.

9. Does resetting the P2135 code fix the problem?

Clearing the code without addressing the underlying issue is only a temporary solution. The code will likely return if the root cause is not resolved.

10. How do I prevent the P2135 code from reoccurring in my Infiniti?

Regular maintenance, such as cleaning the throttle body, inspecting the TPS wiring, and addressing any performance issues promptly, can help prevent the code from reoccurring.

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