AutoCodes – Hyundai – P0071 2011 Hyundai Sonata

P0071 2011 Hyundai Sonata Code - Ambient Air Temperature Sensor Performance

Quick Answer

The Engine Control Module (ECM) monitors the ambient air temperature sensor with a low reference circuit and signal circuit. 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 2011 Hyundai Sonata indicates Ambient Air Temperature Sensor Performance.
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 1,576

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 17, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0071 2011 Hyundai Sonata Description

The Engine Control Module (ECM) monitors the ambient air temperature sensor with a low reference circuit and signal circuit. The ECM monitors the voltage drop across the sensor, which is inversely proportional to temperature. When the ambient air temperature is cold, the resistance of the sensor is high. When the ambient air temperature is warm, the resistance of the sensors is low. The engine control module converts the voltage value to a temperature value and sends the value to the Display Module via serial data. The Display Module displays the temperature. The Diagnostic Trouble Code (DTC) will be set if the ECM detects that during the first 20s of run time after the 1 hour soaking period, the difference between the outside air temperature and the engine intake air temperature is greater than 30°C (86°F).

OBDII Code P0071 2011 Hyundai Sonata - Ambient Air Temperature Sensor Performance - AutoCodes.com — P0071 2011 Hyundai Sonata Code - Ambient Air Temperature Sensor Performance

What does this mean?

What are the Possible Causes of the DTC P0071 2011 Hyundai Sonata?

Faulty Ambient Air Temperature Sensor
Ambient Air Temperature Sensor harness is open or shorted
Ambient Air Temperature Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0071 2011 Hyundai Sonata?

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 2011 Hyundai Sonata 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 2011 Hyundai Sonata Code

1. What does the OBDII code P0071 for a 2011 Hyundai Sonata indicate?

The code P0071 in a 2011 Hyundai Sonata refers to an issue with the Ambient Air Temperature Sensor's performance.

2. What are the common symptoms of a P0071 trouble code in a Hyundai Sonata?

Common symptoms of a P0071 code in a Hyundai Sonata include inaccurate temperature readings on the vehicle's display, poor fuel efficiency, and potential issues with the climate control system.

3. What are the possible causes of a P0071 code in a 2011 Hyundai Sonata?

The P0071 code in a 2011 Hyundai Sonata is often triggered by a faulty Ambient Air Temperature Sensor, damaged wiring or connectors related to the sensor, or a problem with the sensor's circuit.

4. How can I diagnose a P0071 code in my 2011 Hyundai Sonata?

Diagnosing a P0071 code involves using an OBDII scanner to retrieve the code, inspecting the Ambient Air Temperature Sensor and its connections for any visible damage, and testing the sensor's resistance with a multimeter.

5. What are the repair options for a P0071 code in a Hyundai Sonata?

Repair options for a P0071 code may include replacing the Ambient Air Temperature Sensor, repairing or replacing damaged wiring or connectors, or resetting the fault code after addressing any underlying issues.

6. Can I drive my Hyundai Sonata with a P0071 trouble code?

While it may be possible to drive your Hyundai Sonata with a P0071 code, it is advisable to address the issue promptly to prevent potential negative impacts on fuel efficiency and the vehicle's performance.

7. How much does it cost to fix a P0071 code in a 2011 Hyundai Sonata?

The cost of fixing a P0071 code in a 2011 Hyundai Sonata can vary depending on the specific cause of the issue, but it may involve expenses for parts and labor, ranging from around $100 to $300 or more.

8. Does a P0071 code in a Hyundai Sonata affect the vehicle's emissions?

A P0071 code related to the Ambient Air Temperature Sensor may not directly impact the vehicle's emissions, but addressing the issue can help ensure the engine operates optimally, potentially leading to improved emissions performance.

9. How often does a P0071 code occur in a 2011 Hyundai Sonata?

The occurrence of a P0071 code in a 2011 Hyundai Sonata can vary depending on factors such as the vehicle's age, maintenance history, and driving conditions, but it is not an uncommon issue for this model.

10. Can a DIY enthusiast fix a P0071 code in a Hyundai Sonata?

Depending on their skill level and access to tools, a DIY enthusiast may be able to address a P0071 code in a Hyundai Sonata by following repair guides, consulting service manuals, and safely performing sensor replacements or wiring repairs.