Engine-Codes.com
Engine-Codes – Acura – P0122 Acura

P0122 Acura Code - Throttle Position Sensor 'A' Circuit Low Voltage

Quick Answer

The P0122 code for Acura vehicles indicates an issue with the Throttle Position Sensor (TPS) 'A' Circuit, specifically reporting low voltage. Common causes include Worn-out Throttle Position Sensor, Damaged wiring or connectors, Corrosion or debris affecting TPS operation. 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 Acura indicates Throttle Position Sensor 'A' Circuit Low Voltage.
Common causes
Common causes include Worn-out Throttle Position Sensor, Damaged wiring or connectors, Corrosion or debris affecting TPS operation.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0122 Acura Description

The P0122 code for Acura vehicles indicates an issue with the Throttle Position Sensor (TPS) 'A' Circuit, specifically reporting low voltage. The TPS is a critical component of the vehicle's electronic throttle control system, responsible for monitoring the position of the throttle pedal and sending signals to the engine control module (ECM) to adjust the air-fuel mixture for optimal performance. When the TPS 'A' Circuit registers low voltage, it means that the sensor is not providing the expected voltage range to the ECM, leading to potential performance issues.

OBDII Code P0122 Acura - Throttle Position Sensor 'A' Circuit Low Voltage
P0122 Acura Code - Throttle Position Sensor 'A' Circuit Low Voltage

Common Causes of P0122 Acura

  1. Worn-out Throttle Position Sensor
  2. Damaged wiring or connectors
  3. Corrosion or debris affecting TPS operation
  4. Faulty ECM
  5. Electrical issues such as short circuits or open circuits

Symptoms of P0122 Acura

  1. Hesitation or surging during acceleration
  2. Rough idling or stalling
  3. Reduced engine power
  4. Poor fuel efficiency
  5. Illumination of the Check Engine Light

How to Fix P0122 Acura

  1. Diagnose the issue by scanning the vehicle's computer for trouble codes and testing the TPS using a multimeter.
  2. Replace the Throttle Position Sensor if it is malfunctioning, following the manufacturer's guidelines for installation.
  3. Inspect and repair any damaged wiring or connectors in the TPS circuit.
  4. Clear the trouble codes from the ECM's memory and reset the system to ensure accurate readings.
  5. Test drive the vehicle to verify that the repair has resolved the issue and recalibrate the TPS if necessary.

Cost to Fix P0122 Acura

The typical repair costs for addressing a P0122 code on an Acura vehicle can range from $100 to $300, depending on the specific components that need to be replaced or repaired. This estimate includes the cost of a new Throttle Position Sensor, potential wiring repairs, and labor charges. It's important to note that the actual cost may vary based on the vehicle's make and model, the extent of the damage, and the rates charged by the auto repair shop. Additionally, diagnostic time and labor rates can influence the final repair cost, with rates typically ranging from $80 to $150 per hour. Therefore, it's recommended to obtain a detailed quote from a trusted mechanic or dealership to determine the precise cost of addressing the P0122 code for an Acura vehicle.

Need more information about the P0122 Acura code?

Need more information on how to fix the P0122 Acura code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0122 Acura 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 P0122 Acura Code

1. What are the common symptoms of OBDII code P0122 in an Acura?

The common symptoms of OBDII code P0122 in an Acura include poor acceleration, stalling, rough idling, and reduced fuel efficiency.

2. What does the OBDII code P0122 in an Acura indicate?

OBDII code P0122 in an Acura indicates an issue with the Throttle Position Sensor 'A' Circuit, specifically low voltage being detected.

3. What are the possible causes of OBDII code P0122 in an Acura?

Possible causes of OBDII code P0122 in an Acura 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 Throttle Position Sensor 'A' Circuit low voltage issue in my Acura?

To diagnose the Throttle Position Sensor 'A' Circuit low voltage issue in your Acura, you can use a scan tool to read the OBDII code, visually inspect the sensor and its wiring, and perform voltage tests to check for proper signal output.

5. Can I drive my Acura with OBDII code P0122?

It is not recommended to drive your Acura with OBDII code P0122, as it can lead to poor engine performance and potential safety hazards. It's best to address the issue promptly.

6. How can I repair OBDII code P0122 in my Acura?

To repair OBDII code P0122 in your Acura, you may need to replace the throttle position sensor, repair or replace damaged wiring or connectors, or reprogram the engine control module if necessary.

7. Will resetting the check engine light fix OBDII code P0122 in my Acura?

Simply resetting the check engine light will not fix OBDII code P0122 in your Acura. You need to identify and address the underlying issue causing the low voltage in the throttle position sensor circuit.

8. Can a DIY enthusiast fix OBDII code P0122 in an Acura?

Depending on your expertise and access to tools, a DIY enthusiast may be able to fix OBDII code P0122 in an Acura by following proper diagnostic procedures and replacing the faulty components.

9. How much does it cost to repair OBDII code P0122 in an Acura at a dealership?

The cost to repair OBDII code P0122 in an Acura at a dealership can vary based on the specific issue, parts needed, and labor rates. It's recommended to get a detailed estimate from the dealership.

10. Is it important to address OBDII code P0122 promptly in an Acura?

Yes, it is important to address OBDII code P0122 promptly in an Acura to prevent further engine damage, ensure optimal performance, and maintain fuel efficiency.

Discuss the causes and fixes for P0122 Acura OBDII Code

Submit a New Comment

  • Can the po122 throttle sensor effect the transmission, such as shifting at a higher rpm ?

    Reply to Comment

  • What model and year is your Acura? Yes. The throttle position sensor has a great effect on the transmission shifting.

    Reply to Comment

  • What should I replace in this case because I have a 03 acura tl that jave these codes coming up and was told I need to replace the throttle sub.

    Reply to Comment

  • Yes, the most likely cause of the the problem is the Throttle Body. According to a national database of repairs for your vehicle, the most common problem is the throttle body.

    Reply to Comment