AutoCodes – Honda – P0121 2017 Honda CR-V

P0121 2017 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 2017 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 592

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 2017 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 2017 Honda CR-V - Throttle Position Sensor 'A' Out of Range - AutoCodes.com — P0121 2017 Honda CR-V Code - Throttle Position Sensor 'A' Out of Range

What does this mean?

What are the Possible Causes of the DTC P0121 2017 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 2017 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 2017 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 2017 Honda CR-V code?

Need more information on how to fix the P0121 2017 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 2017 Honda CR-V Code

1. What does OBDII code P0121 mean for my 2017 Honda CR-V?

The P0121 code indicates that the Throttle Position Sensor 'A' is out of range, potentially affecting the engine's performance.

2. What are the common symptoms of a P0121 code in a 2017 Honda CR-V?

Common symptoms include issues with acceleration, rough idling, poor fuel efficiency, and even stalling of the engine.

3. What are the possible causes of a P0121 code on a 2017 Honda CR-V?

Potential causes include a faulty throttle position sensor, damaged wiring or connectors related to the sensor, or issues with the throttle body itself.

4. How can I diagnose the source of a P0121 code in my 2017 Honda CR-V?

You can use a diagnostic scanner to read the code and perform a visual inspection of the throttle position sensor and related components for any visible damage or loose connections.

5. Can I still drive my 2017 Honda CR-V with a P0121 code?

It is not recommended to drive your vehicle with a P0121 code, as it can lead to further damage and potential safety hazards. It's best to address the issue promptly.

6. How can I repair a P0121 code on my 2017 Honda CR-V?

Repair options may include replacing the throttle position sensor, repairing or replacing damaged wiring, or cleaning the throttle body to ensure proper functionality.

7. Will resetting the OBDII system clear a P0121 code on a 2017 Honda CR-V?

Resetting the system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return.

8. Is it possible to prevent a P0121 code from appearing in my 2017 Honda CR-V?

Regular maintenance, such as cleaning the throttle body and ensuring proper sensor function during routine inspections, can help prevent the occurrence of a P0121 code.

9. How much does it typically cost to repair a P0121 code in a 2017 Honda CR-V?

The cost can vary depending on the specific cause of the issue, but it may range from around $100 to $300 for parts and labor.

10. Can I fix a P0121 code in my 2017 Honda CR-V myself, or should I take it to a professional mechanic?

While some DIY enthusiasts may be able to address the issue themselves, it is generally recommended to consult a professional mechanic to accurately diagnose and repair a P0121 code in a 2017 Honda CR-V.