AutoCodes – Honda – P0123 2020 Honda CR-V

P0123 2020 Honda CR-V Code - Throttle Position Sensor 'A' Circuit High Voltage

Quick Answer

The electronic throttle control system controls the throttle valve opening. Common causes include Faulty Throttle Body, Throttle Body harness is open or shorted, Throttle Body circuit poor electrical connection. 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 2020 Honda CR-V indicates Throttle Position Sensor 'A' Circuit High Voltage.
Common causes: Common causes include Faulty Throttle Body, Throttle Body harness is open or shorted, Throttle Body circuit poor electrical connection.
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.

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Code Popularity 327

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 02, 2023

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P0123 2020 Honda CR-V Description

The electronic throttle control system controls the throttle valve opening. The system includes the throttle actuator, the throttle valve, Throttle Position (TP) sensors 'A' and 'B', the Electronic Throttle Control System (ETCS) control relay, the Accelerator Pedal Position (APP) sensor, and the Powertrain Control Module (PCM). TP Sensor 'A' is a semiconductor type, and it is attached to the throttle body and shaft to determine the throttle valve position. The throttle valve position signal from TP Sensor 'A' is transmitted to the PCM for target position feedback control. If the signal from TP Sensor 'A' is a fixed value for a set time, the PCM detects a TP Sensor 'A' malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0123 2020 Honda CR-V - Throttle Position Sensor 'A' Circuit High Voltage - AutoCodes.com — P0123 2020 Honda CR-V Code - Throttle Position Sensor 'A' Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0123 2020 Honda CR-V?

Faulty Throttle Body
Throttle Body harness is open or shorted
Throttle Body circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0123 2020 Honda CR-V?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0123 2020 Honda CR-V code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0123 2020 Honda CR-V code?

Need more information on how to fix the P0123 2020 Honda CR-V code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 2020 Honda CR-V Code

1. What are common symptoms of OBDII code P0123 on a 2020 Honda CR-V?

The common symptoms of OBDII code P0123 in a 2020 Honda CR-V include issues with acceleration, poor fuel efficiency, rough idling, and potential stalling of the vehicle.

2. What does the Throttle Position Sensor 'A' Circuit High Voltage code P0123 indicate on a 2020 Honda CR-V?

The P0123 code on a 2020 Honda CR-V indicates that the Engine Control Module (ECM) has detected a high voltage signal from the throttle position sensor.

3. What are the possible causes of OBDII code P0123 on a 2020 Honda CR-V?

Possible causes of the P0123 code on a 2020 Honda CR-V include a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, or issues with the ECM.

4. How can I diagnose the Throttle Position Sensor 'A' Circuit High Voltage code P0123 on my 2020 Honda CR-V?

Diagnosing the P0123 code on a 2020 Honda CR-V involves using a scan tool to check for the specific error code, testing the throttle position sensor for proper voltage output, and inspecting the related wiring and connectors for any damage.

5. Can I continue driving my 2020 Honda CR-V with OBDII code P0123?

It is not recommended to continue driving your 2020 Honda CR-V with the P0123 code present, as it can lead to further damage to the engine and other components. It is best to address the issue promptly.

6. How serious is the Throttle Position Sensor 'A' Circuit High Voltage code P0123 on a 2020 Honda CR-V?

While the P0123 code may not cause immediate harm to your 2020 Honda CR-V, it can lead to drivability issues and potential damage if left unaddressed. It is important to have it diagnosed and repaired as soon as possible.

7. Is it possible to reset the OBDII code P0123 on a 2020 Honda CR-V by disconnecting the battery?

Disconnecting the battery may temporarily clear the code, but it is not a recommended method for addressing the underlying issue causing the P0123 code. It is best to diagnose and repair the root cause of the problem.

8. How much does it typically cost to repair OBDII code P0123 on a 2020 Honda CR-V?

The cost of repairing the P0123 code on a 2020 Honda CR-V can vary depending on the specific cause of the issue. It can range from a simple sensor replacement to more extensive wiring repairs, so it is best to consult a professional for an accurate estimate.

9. Can a DIY enthusiast fix OBDII code P0123 on a 2020 Honda CR-V?

While some DIY enthusiasts may have the skills to diagnose and replace a faulty throttle position sensor, diagnosing wiring issues or problems with the ECM may require more advanced tools and expertise. It is recommended to seek professional assistance if needed.

10. How can I prevent OBDII code P0123 from recurring on my 2020 Honda CR-V after repair?

To prevent the recurrence of the P0123 code on your 2020 Honda CR-V, ensure that the throttle position sensor is properly installed, all wiring and connectors are secure and undamaged, and perform regular maintenance checks to catch any issues early.