AutoCodes – Generic – P2ADA

P2ADA Code - Reductant Tank Temperature Sensor 2 Circuit Performance

Quick Answer

The Reductant Quality Sensor includes an integrated temperature sensor to measure reductant fluid temperature. Common causes include Faulty Reductant Quality Sensor, Reductant Quality Sensor harness is open or shorted, Reductant Quality Sensor 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
P2ADA indicates Reductant Tank Temperature Sensor 2 Circuit Performance.
Common causes
Common causes include Faulty Reductant Quality Sensor, Reductant Quality Sensor harness is open or shorted, Reductant Quality Sensor 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 6,135
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 01, 2021
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Code P2ADA Description

The Reductant Quality Sensor includes an integrated temperature sensor to measure reductant fluid temperature. The Reductant Quality Sensor is located in the reductant tank and uses an ultrasonic signal to measure reductant fluid quality. The Reductant Quality Sensor communicates with the Reductant Control Module using serial data. The Diagnostic Trouble Code (DTC) will be set when the Reductant Control Module detects a performance fault on the reductant quality sensor temperature signal for greater than 1 s.
OBDII Code P2ADA - Reductant Tank Temperature Sensor 2 Circuit Performance - AutoCodes.com
P2ADA Code - Reductant Tank Temperature Sensor 2 Circuit Performance

What are the Possible Causes of the DTC P2ADA?

  • Faulty Reductant Quality Sensor
  • Reductant Quality Sensor harness is open or shorted
  • Reductant Quality Sensor circuit poor electrical connection
  • Faulty Reductant Control Module

How to Fix the DTC P2ADA?

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 P2ADA 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 P2ADA code?

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Need Help with the Code?

Get the P2ADA code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P2ADA Buick β€” Reductant Tank Temperature Sensor 2 Circuit Performance
  • P2ADA Cadillac β€” Reductant Tank Temperature Sensor 2 Circuit Performance
  • P2ADA Chevrolet β€” Reductant Tank Temperature Sensor 2 Circuit Performance
  • P2ADA GMC β€” Reductant Tank Temperature Sensor 2 Circuit Performance
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 P2ADA Code

1. What are common symptoms of OBDII code P2ADA (Reductant Tank Temperature Sensor 2 Circuit Performance)?

- Common symptoms include reduced fuel efficiency, decreased engine performance, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P2ADA?

- The code P2ADA can be triggered by issues such as a faulty reductant tank temperature sensor, damaged wiring or connectors, or a malfunctioning engine control module.

3. How can I diagnose the source of OBDII code P2ADA?

- Diagnosing the code may involve using a diagnostic scanner to retrieve the specific trouble code, checking the reductant tank temperature sensor for proper operation, and inspecting the related wiring and connectors for any damage.

4. What repair options are available for OBDII code P2ADA?

- Repair options may include replacing the reductant tank temperature sensor, repairing or replacing damaged wiring or connectors, or reprogramming the engine control module if necessary.

5. Can I continue driving my vehicle with OBDII code P2ADA?

- It is not recommended to continue driving with the code P2ADA unresolved, as it can lead to reduced engine efficiency and potential emissions issues. It is best to address the problem promptly.

6. How much does it typically cost to repair OBDII code P2ADA?

- The cost of repairing OBDII code P2ADA can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Is OBDII code P2ADA a serious issue that requires immediate attention?

- While the code P2ADA may not cause immediate harm to the vehicle, it is important to address the issue promptly to prevent potential damage to the engine and emissions system in the long run.

8. Can I reset OBDII code P2ADA with a simple disconnect of the battery?

- Disconnecting the battery may clear the code temporarily, but it is not a permanent solution. The underlying issue causing the code will need to be diagnosed and repaired to prevent the code from reoccurring.

9. Are there any DIY repair options for OBDII code P2ADA?

- DIY repair options may include visually inspecting the sensor and its connections for obvious issues, but more in-depth diagnostics and repairs are typically best left to automotive professionals.

10. How often does OBDII code P2ADA occur in vehicles?

- OBDII code P2ADA (Reductant Tank Temperature Sensor 2 Circuit Performance) is a relatively uncommon code compared to more common codes related to engine misfires or oxygen sensor malfunctions.

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