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P2135 Honda Code - Throttle Position Sensor 'A'/'B' Voltage Incorrect Correlation

Quick Answer

The P2135 code for Honda vehicles indicates that there is an incorrect correlation between the voltage signals of the throttle position sensor 'A' and 'B'. Common causes include Faulty throttle position sensor 'A' or 'B', Corrosion or poor connection in the wiring harness to the TPS, ECM software issues. 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 Honda indicates Throttle Position Sensor 'A'/'B' Voltage Incorrect Correlation.
Common causes
Common causes include Faulty throttle position sensor 'A' or 'B', Corrosion or poor connection in the wiring harness to the TPS, ECM software issues.
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 Honda Description

The P2135 code for Honda vehicles indicates that there is an incorrect correlation between the voltage signals of the throttle position sensor 'A' and 'B'. The throttle position sensor (TPS) is a crucial component in the vehicle's electronic fuel injection system, as it monitors the position of the throttle pedal and sends this information to the engine control module (ECM). The ECM uses this data to determine the appropriate fuel injection and air intake for optimal engine performance.

OBDII Code P2135 Honda - Throttle Position Sensor 'A'/'B' Voltage Incorrect Correlation
P2135 Honda Code - Throttle Position Sensor 'A'/'B' Voltage Incorrect Correlation

Common Causes of P2135 Honda

  1. Faulty throttle position sensor 'A' or 'B'
  2. Corrosion or poor connection in the wiring harness to the TPS
  3. ECM software issues
  4. Throttle body malfunction or misalignment
  5. Electrical issues such as a short circuit or open circuit in the TPS circuit

Symptoms of P2135 Honda

  1. Rough idling or fluctuating engine speed
  2. Hesitation or lack of response when pressing the accelerator
  3. Stalling or difficulty starting the engine
  4. Reduced fuel efficiency
  5. Illumination of the Check Engine Light

How to Fix P2135 Honda

  1. Begin by diagnosing the specific TPS (A or B) that is causing the voltage discrepancy using a diagnostic scanner.
  2. Inspect the wiring harness for any signs of damage, corrosion, or poor connections. Repair or replace as needed.
  3. Test the TPS for proper voltage output using a multimeter and replace if found to be faulty.
  4. Check and adjust the throttle body alignment if necessary.
  5. Clear the error code from the ECM's memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2135 Honda

The cost of repairing a P2135 code on a Honda vehicle can vary depending on the specific model and year of the car, as well as the labor rates in your area. On average, the parts for a throttle position sensor replacement can range from $50 to $200, while the labor costs can range from $100 to $300. Overall, you can expect to pay anywhere from $150 to $500 for this repair. It's recommended to consult with a trusted mechanic or dealership to get an accurate estimate for your specific situation.

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Information for Specific Honda 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 Honda Code

1. What are the common symptoms of OBDII code P2135 in a Honda vehicle?

- Common symptoms include a check engine light, reduced engine power, rough idle, hesitation or stalling, and throttle response issues.

2. What does the OBDII code P2135 in a Honda mean?

- OBDII code P2135 indicates that there is an incorrect correlation between the voltage signals of the throttle position sensor 'A' and throttle position sensor 'B'.

3. What are the possible causes of OBDII code P2135 in a Honda?

- Possible causes include a faulty throttle position sensor, damaged wiring or connectors, issues with the throttle body, or a problem with the engine control module.

4. How can I diagnose the cause of OBDII code P2135 in my Honda?

- Diagnosing the issue typically involves checking the throttle position sensor readings using a scan tool, inspecting the wiring and connectors for damage, and testing the throttle body for proper operation.

5. Can driving with OBDII code P2135 in a Honda cause further damage?

- Continuously driving with this code can potentially cause further damage to the engine or other components, so it's recommended to address the issue promptly.

6. Is it safe to continue driving my Honda with OBDII code P2135?

- It is not recommended to continue driving the vehicle with this code as it can lead to performance issues and potentially unsafe driving conditions.

7. How can I repair OBDII code P2135 in my Honda?

- Repair options may include replacing the faulty throttle position sensor, repairing damaged wiring or connectors, cleaning or replacing the throttle body, or reprogramming the engine control module.

8. Can I reset OBDII code P2135 in my Honda using an OBDII scanner?

- Yes, you can reset the code using an OBDII scanner, but it is important to address the underlying issue causing the code to prevent it from reoccurring.

9. How much does it typically cost to fix OBDII code P2135 in a Honda?

- The cost of repairs for this code 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. Are there any preventive maintenance tips to avoid OBDII code P2135 in a Honda?

- To prevent OBDII code P2135, it's recommended to follow the manufacturer's recommended maintenance schedule, regularly inspect and clean the throttle body, and address any sensor or wiring issues promptly.

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