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P0121 2017 Honda CR-V Code - Throttle Position Sensor 'A' Out of Range

Quick Answer

The P0121 diagnostic trouble code (DTC) for a 2017 Honda CR-V indicates that the Throttle Position Sensor 'A' is out of range. Common causes include Wear and tear on the throttle position sensor, Corrosion or damage to the TPS wiring harness, Faulty electrical connections between the TPS and 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
P0121 2017 Honda CR-V indicates Throttle Position Sensor 'A' Out of Range.
Common causes
Common causes include Wear and tear on the throttle position sensor, Corrosion or damage to the TPS wiring harness, Faulty electrical connections between the TPS and 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 17, 2024
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Code P0121 2017 Honda CR-V Description

The P0121 diagnostic trouble code (DTC) for a 2017 Honda CR-V indicates that the Throttle Position Sensor 'A' is out of range. The throttle position sensor (TPS) is a crucial component of the vehicle's electronic throttle control system. It is responsible for monitoring the position of the throttle pedal and sending signals to the engine control module (ECM) to adjust the air-fuel mixture for optimal performance. When the TPS is out of range, it means that the sensor is not providing the ECM with accurate or consistent data about the throttle position, which can lead to various performance issues.

OBDII Code P0121 2017 Honda CR-V - Throttle Position Sensor 'A' Out of Range
P0121 2017 Honda CR-V Code - Throttle Position Sensor 'A' Out of Range

Common Causes of P0121 2017 Honda CR-V

  1. Wear and tear on the throttle position sensor.
  2. Corrosion or damage to the TPS wiring harness.
  3. Faulty electrical connections between the TPS and ECM.
  4. A malfunctioning ECM that is not receiving accurate data from the TPS.
  5. Environmental factors such as extreme temperatures affecting sensor performance.

Symptoms of P0121 2017 Honda CR-V

  1. Poor acceleration or lack of response when pressing the throttle pedal.
  2. Rough idling or stalling when coming to a stop.
  3. Hesitation or jerking during acceleration.
  4. Check Engine Light illuminated on the dashboard.
  5. Reduced fuel efficiency.

How to Fix P0121 2017 Honda CR-V

  1. Begin by diagnosing the issue using a diagnostic scan tool to confirm the P0121 code and pinpoint the exact cause of the problem.
  2. Inspect the throttle position sensor and wiring harness for any visible damage or corrosion. Replace the TPS if necessary.
  3. Check and clean electrical connections between the TPS and ECM to ensure a secure and reliable connection.
  4. Clear the DTC from the ECM memory using the diagnostic scan tool and perform a test drive to verify that the issue has been resolved.
  5. If the problem persists, consult a professional mechanic to perform further diagnostics and potentially replace the ECM if deemed necessary.

Cost to Fix P0121 2017 Honda CR-V

The typical repair costs for addressing a Throttle Position Sensor 'A' Out of Range code (P0121) on a 2017 Honda CR-V can range from $150 to $300, including parts and labor. However, it's essential to note that 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. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops often offer lower rates. To obtain a more precise estimate, it is recommended to inquire about local rates before proceeding with the repair.

What does this mean?

Tech Notes for P0121 2017 Honda CR-V









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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 P0121 2017 Honda CR-V Code

1. What does OBDII code P0121 mean for my 2017 Honda CR-V?

The P0121 code indicates that the Throttle Position Sensor 'A' is out of range, potentially affecting the engine's performance.

2. What are the common symptoms of a P0121 code in a 2017 Honda CR-V?

Common symptoms include issues with acceleration, rough idling, poor fuel efficiency, and even stalling of the engine.

3. What are the possible causes of a P0121 code on a 2017 Honda CR-V?

Potential causes include a faulty throttle position sensor, damaged wiring or connectors related to the sensor, or issues with the throttle body itself.

4. How can I diagnose the source of a P0121 code in my 2017 Honda CR-V?

You can use a diagnostic scanner to read the code and perform a visual inspection of the throttle position sensor and related components for any visible damage or loose connections.

5. Can I still drive my 2017 Honda CR-V with a P0121 code?

It is not recommended to drive your vehicle with a P0121 code, as it can lead to further damage and potential safety hazards. It's best to address the issue promptly.

6. How can I repair a P0121 code on my 2017 Honda CR-V?

Repair options may include replacing the throttle position sensor, repairing or replacing damaged wiring, or cleaning the throttle body to ensure proper functionality.

7. Will resetting the OBDII system clear a P0121 code on a 2017 Honda CR-V?

Resetting the system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return.

8. Is it possible to prevent a P0121 code from appearing in my 2017 Honda CR-V?

Regular maintenance, such as cleaning the throttle body and ensuring proper sensor function during routine inspections, can help prevent the occurrence of a P0121 code.

9. How much does it typically cost to repair a P0121 code in a 2017 Honda CR-V?

The cost can vary depending on the specific cause of the issue, but it may range from around $100 to $300 for parts and labor.

10. Can I fix a P0121 code in my 2017 Honda CR-V myself, or should I take it to a professional mechanic?

While some DIY enthusiasts may be able to address the issue themselves, it is generally recommended to consult a professional mechanic to accurately diagnose and repair a P0121 code in a 2017 Honda CR-V.

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