AutoCodes – Generic – P00A3

P00A3 Code - Charge Air Cooler Temperature Sensor Circuit High Bank 2

Quick Answer

The Powertrain Control Module (PCM) continuously monitors the Charge Air Cooler Temperature Sensor for concerns. Common causes include Faulty Charge Air Cooler Temperature Sensor, Charge Air Cooler Temperature Sensor harness is open or shorted, Charge Air Cooler Temperature 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: P00A3 indicates Charge Air Cooler Temperature Sensor Circuit High Bank 2.
Common causes: Common causes include Faulty Charge Air Cooler Temperature Sensor, Charge Air Cooler Temperature Sensor harness is open or shorted, Charge Air Cooler Temperature 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.

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Code Popularity 4,860

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 Apr 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P00A3 Description

The Powertrain Control Module (PCM) continuously monitors the Charge Air Cooler Temperature Sensor for concerns. The OBDII code is set when the Charge Air Cooler Temperature Sensor is out of factory specifications.

OBDII Code P00A3 - Charge Air Cooler Temperature Sensor Circuit High Bank 2 - AutoCodes.com — P00A3 Code - Charge Air Cooler Temperature Sensor Circuit High Bank 2

What does this mean?

What are the Possible Causes of the DTC P00A3?

Faulty Charge Air Cooler Temperature Sensor
Charge Air Cooler Temperature Sensor harness is open or shorted
Charge Air Cooler Temperature Sensor circuit poor electrical connection

How to Fix the DTC P00A3?

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 P00A3 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 P00A3 code?

Need more information on how to fix the P00A3 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P00A3 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 P00A3 Code

1. What are the common symptoms of OBDII code P00A3 (Charge Air Cooler Temperature Sensor Circuit High Bank 2)?

- Common symptoms include engine performance issues, reduced fuel efficiency, and potential stalling.

2. What are the possible causes of OBDII code P00A3?

- Causes of this code can include a faulty charge air cooler temperature sensor, wiring issues, or a problem with the engine control module.

3. How can I diagnose the issue related to OBDII code P00A3?

- Diagnosing the issue involves using an OBDII scanner to retrieve the code, checking the charge air cooler temperature sensor and its wiring for any visible damage, and testing the sensor's resistance.

4. Can I drive my vehicle with OBDII code P00A3 present?

- It is not recommended to drive the vehicle with this code present, as it can lead to further engine damage or poor performance.

5. How can I repair OBDII code P00A3 myself?

- DIY repair options include replacing the charge air cooler temperature sensor, repairing any damaged wiring, or resetting the engine control module after fixing the issue.

6. Will resetting the OBDII code P00A3 make it go away permanently?

- Resetting the code may temporarily clear it, but if the underlying issue is not addressed, the code is likely to reappear after some time.

7. Can a faulty charge air cooler temperature sensor cause other problems in the vehicle?

- Yes, a faulty sensor can lead to incorrect engine timing, poor fuel efficiency, and potential damage to engine components if not addressed promptly.

8. How much does it typically cost to repair OBDII code P00A3 at a mechanic or dealership?

- Repair costs can vary depending on the exact cause of the issue, but expect to pay anywhere from $100 to $300 for parts and labor.

9. Are there any preventive measures to avoid OBDII code P00A3 from occurring?

- Regular maintenance checks, including inspecting the charge air cooler temperature sensor and its wiring, can help prevent this code from occurring unexpectedly.

10. How long does it take to repair OBDII code P00A3?

- The repair time can vary depending on the extent of the issue and the availability of parts, but in general, it can take a few hours to a full day to diagnose and fix the problem.