AutoCodes – Honda – P0123 2018 Honda CR-V

P0123 2018 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 2018 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 335

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 2018 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 2018 Honda CR-V - Throttle Position Sensor 'A' Circuit High Voltage - AutoCodes.com — P0123 2018 Honda CR-V Code - Throttle Position Sensor 'A' Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0123 2018 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 2018 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 2018 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 2018 Honda CR-V code?

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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 2018 Honda CR-V Code

1. What are the common symptoms of OBDII code P0123 on a 2018 Honda CR-V?

- Common symptoms include issues with acceleration, poor fuel economy, rough idling, and potential stalling of the vehicle.

2. What does the OBDII code P0123 indicate in a 2018 Honda CR-V?

- The code P0123 indicates a problem with the Throttle Position Sensor 'A' Circuit High Voltage in the 2018 Honda CR-V.

3. What are the potential causes of the Throttle Position Sensor 'A' Circuit High Voltage code on a 2018 Honda CR-V?

- 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 (ECM).

4. How can I diagnose the Throttle Position Sensor 'A' Circuit High Voltage issue on my 2018 Honda CR-V?

- Diagnosing the problem involves checking the throttle position sensor's voltage output, inspecting the wiring and connectors for any damage, and scanning the ECM for error codes.

5. Can I drive my 2018 Honda CR-V with the P0123 code?

- It's not recommended to drive your vehicle with the P0123 code as it can lead to performance issues and potential safety concerns. It's best to get the issue fixed promptly.

6. How can I repair the Throttle Position Sensor 'A' Circuit High Voltage problem on my 2018 Honda CR-V?

- The repair may involve replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, cleaning the throttle body, or reprogramming the ECM.

7. Is it possible to reset the OBDII code P0123 on a 2018 Honda CR-V without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it's essential to address the root cause of the problem to prevent it from recurring and potentially causing further damage.

8. Will a Throttle Position Sensor 'A' Circuit High Voltage code on a 2018 Honda CR-V affect the vehicle's performance?

- Yes, the code can impact the vehicle's performance by causing issues with acceleration, fuel efficiency, and overall engine operation.

9. How much does it typically cost to repair the Throttle Position Sensor 'A' Circuit High Voltage issue on a 2018 Honda CR-V?

- The repair costs can vary depending on the exact cause of the problem, but it may range from $100 to $300 for parts and labor.

10. Can a DIY enthusiast fix the P0123 code on a 2018 Honda CR-V, or is it best left to a professional mechanic?

- While some DIYers with automotive knowledge and tools may be able to address the issue, it's recommended to consult a professional mechanic to ensure proper diagnosis and repair of the Throttle Position Sensor 'A' Circuit High Voltage problem.