AutoCodes – Honda – P0221 Honda

P0221 Honda Code - Throttle Position Sensor 'B' Out of Range

Quick Answer

The electronic throttle control system controls the throttle valve opening. Common causes include Faulty Throttle Body (TP Sensor 'B'), 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
P0221 Honda indicates Throttle Position Sensor 'B' Out of Range.
Common causes
Common causes include Faulty Throttle Body (TP Sensor 'B'), 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 629
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 15, 2023
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Code P0221 Honda 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 'B' 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 'B' is transmitted to the PCM for target position feedback control. If the signal from TP Sensor 'B' is a fixed value for a set time, the PCM detects a TP Sensor 'B' malfunction and stores a Diagnostic Trouble Code (DTC).
OBDII Code P0221 Honda - Throttle Position Sensor 'B' Out of Range - AutoCodes.com
P0221 Honda Code - Throttle Position Sensor 'B' Out of Range

What are the Possible Causes of the DTC P0221 Honda?

  • Faulty Throttle Body (TP Sensor 'B')
  • Throttle Body harness is open or shorted
  • Throttle Body circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0221 Honda?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0221 Honda 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 P0221 Honda code?

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Information for Specific Honda Models

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 P0221 Honda Code

1. What are the common symptoms of OBDII code P0221 in a Honda related to the Throttle Position Sensor 'B' Out of Range?

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

2. What are the possible causes of OBDII code P0221 in a Honda?

- The code P0221 usually indicates a problem with the Throttle Position Sensor 'B,' which can be caused by sensor malfunction, wiring issues, or a faulty connection.

3. How can I diagnose the Throttle Position Sensor 'B' issue causing OBDII code P0221 in my Honda?

- You can diagnose the issue by using a diagnostic scanner to read the code, checking the sensor's wiring and connections for any damage or corrosion, and testing the sensor's voltage output.

4. Can a dirty throttle body cause OBDII code P0221 in a Honda?

- Yes, a dirty throttle body can sometimes cause the Throttle Position Sensor 'B' to give incorrect readings, potentially triggering code P0221. Cleaning the throttle body may help resolve the issue.

5. What are some repair tips for fixing OBDII code P0221 related to the Throttle Position Sensor 'B' in a Honda?

- Repair tips include checking and cleaning the throttle body, inspecting and repairing any damaged wiring or connections, and replacing the Throttle Position Sensor 'B' if necessary.

6. Is it safe to continue driving my Honda with OBDII code P0221 indicating an issue with the Throttle Position Sensor 'B'?

- It is not recommended to continue driving with code P0221 present, as it can lead to performance issues and potential safety hazards. It is best to address the problem promptly.

7. Can I reset the OBDII code P0221 in my Honda by disconnecting the battery?

- Disconnecting the battery may temporarily clear the code, but it is not a permanent solution. The underlying issue with the Throttle Position Sensor 'B' needs to be diagnosed and fixed to prevent the code from reappearing.

8. How much does it typically cost to repair OBDII code P0221 in a Honda caused by the Throttle Position Sensor 'B'?

- The cost of repairing code P0221 can vary depending on the exact cause of the issue. In general, replacing the Throttle Position Sensor 'B' can cost between $100 to $200, including parts and labor.

9. Can a DIY enthusiast replace the Throttle Position Sensor 'B' in a Honda to fix OBDII code P0221?

- Yes, replacing the Throttle Position Sensor 'B' can be a DIY project for those with some mechanical knowledge and the right tools. However, if unsure, it is recommended to seek professional help to ensure proper installation.

10. How long does it typically take to repair OBDII code P0221 related to the Throttle Position Sensor 'B' in a Honda?

- Repair time can vary depending on the exact cause of the issue and the expertise of the mechanic. In general, replacing the Throttle Position Sensor 'B' can take around 1-2 hours to complete.

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