AutoCodes – Honda – P0122 2018 Honda CR-V

P0122 2018 Honda CR-V Code - Throttle Position Sensor 'A' Circuit Low 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: P0122 2018 Honda CR-V indicates Throttle Position Sensor 'A' Circuit Low 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 374

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 P0122 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 P0122 2018 Honda CR-V - Throttle Position Sensor 'A' Circuit Low Voltage - AutoCodes.com — P0122 2018 Honda CR-V Code - Throttle Position Sensor 'A' Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0122 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 P0122 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 P0122 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 P0122 2018 Honda CR-V code?

Need more information on how to fix the P0122 2018 Honda CR-V code? Get Access to Factory Service Manuals

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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 P0122 2018 Honda CR-V Code

1. What does OBDII code P0122 on a 2018 Honda CR-V indicate?

The code P0122 in a 2018 Honda CR-V indicates an issue with the Throttle Position Sensor 'A' Circuit, specifically low voltage.

2. What are the common symptoms of OBDII code P0122 in a 2018 Honda CR-V?

Common symptoms of code P0122 in a 2018 Honda CR-V include poor acceleration, stalling, rough idling, and possibly the vehicle going into "limp mode."

3. What are the possible causes of OBDII code P0122 in a 2018 Honda CR-V?

Possible causes of code P0122 in a 2018 Honda CR-V include a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, or a problem with the engine control module.

4. How can I diagnose the cause of OBDII code P0122 in my 2018 Honda CR-V?

Diagnosing code P0122 in a 2018 Honda CR-V involves checking the throttle position sensor's wiring and connector for damage, testing the sensor's voltage output, and inspecting the engine control module for faults.

5. Can I continue driving my 2018 Honda CR-V with OBDII code P0122?

It is not recommended to drive your 2018 Honda CR-V with code P0122 as it can lead to poor engine performance and potential safety hazards. It's best to address the issue promptly.

6. How do I repair OBDII code P0122 in my 2018 Honda CR-V?

Repairing code P0122 in a 2018 Honda CR-V typically involves replacing the throttle position sensor if faulty, repairing any damaged wiring or connectors, or reprogramming the engine control module if needed.

7. Will resetting the OBDII code P0122 in my 2018 Honda CR-V make the issue go away?

Simply resetting the code without addressing the underlying problem will not fix the issue. It's essential to diagnose and repair the root cause of code P0122 in your 2018 Honda CR-V.

8. Is it possible to prevent OBDII code P0122 from occurring in my 2018 Honda CR-V?

Regular maintenance of your 2018 Honda CR-V, such as checking the throttle position sensor's condition during tune-ups, can help prevent code P0122. Timely repairs of any related issues can also prevent this code from occurring.

9. How much does it typically cost to repair OBDII code P0122 in a 2018 Honda CR-V?

The cost of repairing code P0122 in a 2018 Honda CR-V can vary depending on the exact cause of the issue. Replacing a faulty throttle position sensor can cost around $100 to $200, while addressing wiring or module issues may incur additional expenses.

10. Can a DIY enthusiast repair OBDII code P0122 in a 2018 Honda CR-V?

While some aspects of diagnosing and repairing code P0122 may be accessible to DIY enthusiasts, dealing with sensors, wiring, and modules can be complex. It's recommended to consult a professional mechanic for accurate diagnosis and repair of this issue.