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P0123 2017 Honda CR-V Code - Throttle Position Sensor 'A' Circuit High Voltage

Quick Answer

The P0123 diagnostic trouble code (DTC) for a 2017 Honda CR-V indicates an issue with the Throttle Position Sensor (TPS) 'A' Circuit registering high voltage. Common causes include Faulty Throttle Position Sensor, Corrosion or poor connection in the TPS wiring harness, Issues with the 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
P0123 2017 Honda CR-V indicates Throttle Position Sensor 'A' Circuit High Voltage.
Common causes
Common causes include Faulty Throttle Position Sensor, Corrosion or poor connection in the TPS wiring harness, Issues with the 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 15, 2024
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Code P0123 2017 Honda CR-V Description

The P0123 diagnostic trouble code (DTC) for a 2017 Honda CR-V indicates an issue with the Throttle Position Sensor (TPS) 'A' Circuit registering high voltage. 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 determine the appropriate fuel delivery and ignition timing for optimal engine performance.

OBDII Code P0123 2017 Honda CR-V - Throttle Position Sensor 'A' Circuit High Voltage
P0123 2017 Honda CR-V Code - Throttle Position Sensor 'A' Circuit High Voltage

Common Causes of P0123 2017 Honda CR-V

  1. Faulty Throttle Position Sensor
  2. Corrosion or poor connection in the TPS wiring harness
  3. Issues with the ECM
  4. Vacuum leaks in the intake system
  5. Throttle body malfunction

Symptoms of P0123 2017 Honda CR-V

  1. Check Engine Light illuminated
  2. Hesitation or jerking during acceleration
  3. Rough idling or stalling
  4. Reduced fuel efficiency
  5. Difficulty maintaining a consistent speed

How to Fix P0123 2017 Honda CR-V

  1. Begin by diagnosing the issue using a scan tool to confirm the P0123 code and pinpoint the exact cause.
  2. Inspect the TPS wiring harness for any signs of damage, corrosion, or poor connections. Repair or replace as necessary.
  3. Test the Throttle Position Sensor using a multimeter to check for proper voltage output. Replace the sensor if it is faulty.
  4. Check for any vacuum leaks in the intake system and repair as needed.
  5. Clear the DTC and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0123 2017 Honda CR-V

The cost of repairing a Throttle Position Sensor 'A' Circuit High Voltage issue on a 2017 Honda CR-V can vary depending on the specific cause of the problem. Typically, the cost of a new TPS sensor ranges from $50 to $150, while labor costs can range from $100 to $200. Overall, the total repair cost could be between $150 and $350. It is important to note that prices may vary based on the location, the auto repair shop's labor rates, and any additional parts or services required. It is recommended to obtain quotes from multiple repair shops to ensure a competitive price.

What does this mean?

Tech Notes for P0123 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 P0123 2017 Honda CR-V Code

1. What are the common symptoms of OBDII code P0123 in a 2017 Honda CR-V?

- Common symptoms include issues with acceleration, poor fuel economy, stalling, or a noticeable decrease in engine performance.

2. What does the OBDII code P0123, indicating "Throttle Position Sensor 'A' Circuit High Voltage," mean?

- This code indicates that the throttle position sensor is sending a higher voltage signal than expected to the vehicle's engine control module.

3. What are the possible causes of OBDII code P0123 in a 2017 Honda CR-V?

- The code can be triggered by a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module.

4. How serious is the OBDII code P0123 in a 2017 Honda CR-V?

- While the vehicle may still be operable with this code present, it is important to address it promptly to prevent potential damage to the engine or drivability issues.

5. Can OBDII code P0123 be fixed without professional help?

- Simple troubleshooting steps like checking for loose connections or damaged wires can sometimes resolve the issue, but in many cases, professional diagnostic tools and expertise may be needed.

6. How can I repair OBDII code P0123 in my 2017 Honda CR-V?

- Repair options include replacing the throttle position sensor, repairing damaged wiring or connectors, or reprogramming the engine control module if necessary.

7. Will driving with OBDII code P0123 harm my 2017 Honda CR-V?

- Continuing to drive with this code may lead to reduced fuel efficiency, engine performance issues, or potential damage to the engine over time. It is advisable to address the problem promptly.

8. How can I prevent OBDII code P0123 from occurring in the future?

- Regular maintenance checks, including inspecting the throttle position sensor and its connections, can help prevent this code from reoccurring in the future.

9. Can a faulty throttle position sensor cause other issues besides triggering OBDII code P0123?

- Yes, a faulty throttle position sensor can cause a range of drivability issues, including rough idling, poor acceleration, and incorrect shifting in automatic transmissions.

10. How much does it typically cost to repair OBDII code P0123 in a 2017 Honda CR-V?

- The cost of repairing this code can vary depending on the root cause of the issue, but it may range from a few hundred to a thousand dollars, including parts and labor.

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