AutoCodes – Honda – P0121 2019 Honda CR-V

P0121 2019 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 2019 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 240

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 2019 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 2019 Honda CR-V - Throttle Position Sensor 'A' Out of Range - AutoCodes.com — P0121 2019 Honda CR-V Code - Throttle Position Sensor 'A' Out of Range

What does this mean?

What are the Possible Causes of the DTC P0121 2019 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 2019 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 2019 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 2019 Honda CR-V code?

Need more information on how to fix the P0121 2019 Honda CR-V code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0121 2019 Honda CR-V code diagnosed by a professional: Find a repair shop in your area

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 2019 Honda CR-V Code

1. What are the common symptoms of OBDII code P0121 (Throttle Position Sensor 'A' Out of Range) in a 2019 Honda CR-V?

The common symptoms include rough idling, poor acceleration, stalling, and possible issues with the vehicle's transmission shifting smoothly.

2. What are the main causes of OBDII code P0121 in a 2019 Honda CR-V?

The main causes of this code are usually a faulty throttle position sensor, a damaged wiring harness, or a poor electrical connection to the sensor.

3. How can I diagnose the Throttle Position Sensor 'A' Out of Range issue on my 2019 Honda CR-V?

You can diagnose this issue by using an OBDII scanner to read the trouble code, checking the throttle position sensor's voltage output, and inspecting the sensor's wiring for any signs of damage or corrosion.

4. Is it safe to continue driving my 2019 Honda CR-V with OBDII code P0121?

It is not recommended to drive your vehicle with this code as it can lead to poor engine performance and potentially cause further damage to the engine or transmission.

5. Can I reset the OBDII code P0121 in my 2019 Honda CR-V by disconnecting the battery?

While disconnecting the battery may temporarily clear the code, it is not a permanent solution. It's crucial to address the underlying issue causing the code to prevent it from reoccurring.

6. How much does it typically cost to repair OBDII code P0121 in a 2019 Honda CR-V?

The cost of repairing this code can vary depending on the root cause. Replacing a faulty throttle position sensor can cost between $100 to $300, while fixing a wiring issue may range from $50 to $200.

7. Can I replace the throttle position sensor in my 2019 Honda CR-V myself?

Replacing the throttle position sensor can be a DIY project for those with mechanical skills and the right tools. However, it's recommended to consult a professional if you're unsure about the process.

8. Will OBDII code P0121 cause my 2019 Honda CR-V to fail an emissions test?

Yes, this code can cause your vehicle to fail an emissions test due to the impact it has on engine performance and emissions control systems.

9. How long does it typically take to repair OBDII code P0121 in a 2019 Honda CR-V?

The repair time can vary based on the exact cause of the issue and the technician's efficiency. In general, it can take anywhere from 1 to 3 hours to diagnose and repair this problem.

10. Can a dirty throttle body be a possible cause of OBDII code P0121 in a 2019 Honda CR-V?

Yes, a dirty throttle body can disrupt the sensor's readings and cause the throttle position sensor 'A' to be out of range, triggering the P0121 trouble code. Regular maintenance of the throttle body can help prevent this issue.