AutoCodes – Honda – P0121 2020 Honda CR-V

P0121 2020 Honda CR-V Code - Throttle Position Sensor 'A' Out of Range

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: P0121 2020 Honda CR-V indicates Throttle Position Sensor 'A' Out of Range.
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 353

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 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 P0121 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 P0121 2020 Honda CR-V - Throttle Position Sensor 'A' Out of Range - AutoCodes.com — P0121 2020 Honda CR-V Code - Throttle Position Sensor 'A' Out of Range

What does this mean?

What are the Possible Causes of the DTC P0121 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 P0121 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 P0121 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 P0121 2020 Honda CR-V code?

Need more information on how to fix the P0121 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 P0121 2020 Honda CR-V Code

1. What does the OBDII code P0121 on my 2020 Honda CR-V mean?

- The P0121 code indicates that the Throttle Position Sensor 'A' is out of range on your Honda CR-V.

2. What are the common symptoms of a P0121 code in a 2020 Honda CR-V?

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

3. What are the possible causes of the P0121 code in a 2020 Honda CR-V?

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

4. How can I diagnose the cause of the P0121 code in my 2020 Honda CR-V?

- Diagnosing the issue may involve checking the throttle position sensor's voltage, inspecting the wiring and connectors for damage, and performing a thorough inspection of the throttle body.

5. Can I still drive my 2020 Honda CR-V with a P0121 code?

- It is not recommended to drive the vehicle with a P0121 code, as it can lead to poor performance and potentially unsafe driving conditions.

6. How can I repair a P0121 code on my 2020 Honda CR-V?

- Repair options may include replacing the throttle position sensor, repairing damaged wiring or connectors, cleaning the throttle body, or resetting the engine control module.

7. Will resetting the check engine light resolve the P0121 code on my 2020 Honda CR-V?

- Resetting the check engine light may temporarily clear the code, but it is important to address the underlying issue causing the P0121 code to prevent it from reoccurring.

8. How much does it cost to repair a P0121 code on a 2020 Honda CR-V?

- The cost of repair can vary depending on the specific cause of the P0121 code, but it may range from a simple sensor replacement to more extensive repairs involving wiring or component replacements.

9. Can a DIY enthusiast fix a P0121 code on a 2020 Honda CR-V?

- Depending on the skill level and experience, some DIY enthusiasts may be able to address the P0121 code by following repair guides and using the necessary tools and equipment.

10. How often does the Throttle Position Sensor 'A' need to be replaced in a 2020 Honda CR-V?

- The throttle position sensor may need replacement due to wear and tear over time, but there is no specific interval for replacement. It is best to monitor for symptoms and address any issues promptly.