AutoCodes – Audi – P0071 Audi

P0071 Audi Code - Ambient Air Temperature Sensor Circuit Range/Performance Fault

Quick Answer

The Powertrain Control Module (PCM) monitors the Ambient Air Temperature Sensor. Common causes include Faulty ambient air temperature sensor, Ambient air temperature sensor harness is open or shorted, Ambient air 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: P0071 Audi indicates Ambient Air Temperature Sensor Circuit Range/Performance Fault.
Common causes: Common causes include Faulty ambient air temperature sensor, Ambient air temperature sensor harness is open or shorted, Ambient air 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 8,974

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 25, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0071 Audi Description

The Powertrain Control Module (PCM) monitors the Ambient Air Temperature Sensor. The PCM sets the OBDII code when the Ambient Air Temperature Sensor is not to factory specifications.

OBDII Code P0071 Audi - Ambient Air Temperature Sensor Circuit Range/Performance Fault - AutoCodes.com — P0071 Audi Code - Ambient Air Temperature Sensor Circuit Range/Performance Fault

What does this mean?

What are the Possible Causes of the DTC P0071 Audi?

Faulty ambient air temperature sensor
Ambient air temperature sensor harness is open or shorted
Ambient air temperature sensor circuit poor electrical connection

How to Fix the DTC P0071 Audi?

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 P0071 Audi 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.

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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 P0071 Audi Code

1. What are the common symptoms of OBDII code P0071 in an Audi related to the Ambient Air Temperature Sensor Circuit Range/Performance Fault?

- Common symptoms include erratic readings on the outside temperature display, incorrect climate control operation, and potential impact on fuel efficiency.

2. What are the possible causes of the OBDII code P0071 in an Audi?

- Possible causes may include a faulty ambient air temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the sensor's ground connection.

3. How can I diagnose the Ambient Air Temperature Sensor Circuit Range/Performance Fault in my Audi?

- Diagnose by visually inspecting the sensor and its wiring, testing the sensor's resistance with a multimeter, and checking for proper voltage supply and ground connections.

4. Can I drive my Audi with OBDII code P0071 present?

- It is generally safe to drive with this code, but you may experience issues with climate control accuracy and fuel efficiency until the problem is resolved.

5. What are some repair tips for fixing the Ambient Air Temperature Sensor Circuit Range/Performance Fault in an Audi?

- Repair tips include replacing the ambient air temperature sensor if faulty, repairing damaged wiring or connectors, and ensuring proper grounding of the sensor.

6. Will resetting the OBDII code P0071 in my Audi make the issue go away permanently?

- Resetting the code may temporarily clear the fault, but if the underlying issue such as a faulty sensor or wiring problem is not addressed, the code is likely to reappear.

7. How much does it typically cost to repair the Ambient Air Temperature Sensor Circuit Range/Performance Fault in an Audi?

- The cost of repair can vary depending on the cause of the fault, but it may range from $100 to $300 for parts and labor.

8. Can a DIY enthusiast fix the OBDII code P0071 in an Audi at home?

- Yes, if you have the necessary tools and experience working on car electronics, you may be able to replace the ambient air temperature sensor or repair wiring issues at home.

9. Will ignoring the OBDII code P0071 in my Audi cause any long-term damage?

- Ignoring the code may lead to inaccuracies in climate control systems and potentially impact fuel efficiency, but it is unlikely to cause severe damage to the vehicle.

10. How often should the ambient air temperature sensor be replaced in an Audi to prevent OBDII code P0071 from recurring?

- The ambient air temperature sensor typically does not require regular replacement unless it fails. Regular inspection during routine maintenance is recommended to prevent issues.