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P0071 Dodge Code - Ambient Air Temperature Sensor Performance

Quick Answer

The P0071 OBD-II diagnostic trouble code indicates an issue with the Ambient Air Temperature (AAT) sensor's performance in a Dodge vehicle. Common causes include Faulty AAT sensor, Wiring or connector issues in the AAT sensor circuit, Corrosion or damage to the AAT sensor. 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 Dodge indicates Ambient Air Temperature Sensor Performance.
Common causes
Common causes include Faulty AAT sensor, Wiring or connector issues in the AAT sensor circuit, Corrosion or damage to the AAT sensor.
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 10, 2024
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Code P0071 Dodge Description

The P0071 OBD-II diagnostic trouble code indicates an issue with the Ambient Air Temperature (AAT) sensor's performance in a Dodge vehicle. The AAT sensor is responsible for measuring the temperature of the air outside the vehicle and transmitting this data to the engine control module (ECM). This information is crucial for the ECM to adjust the air-fuel mixture, ignition timing, and other engine parameters for optimal performance and fuel efficiency.

OBDII Code P0071 Dodge - Ambient Air Temperature Sensor Performance
P0071 Dodge Code - Ambient Air Temperature Sensor Performance

Common Causes of P0071 Dodge

  1. Faulty AAT sensor
  2. Wiring or connector issues in the AAT sensor circuit
  3. Corrosion or damage to the AAT sensor
  4. ECM software or hardware issues
  5. Environmental factors affecting the AAT sensor's performance, such as exposure to extreme temperatures or moisture

Symptoms of P0071 Dodge

  1. Check engine light illuminated on the dashboard
  2. Engine running rough or misfiring
  3. Decreased fuel efficiency
  4. Engine stalling or hesitation during acceleration
  5. Inaccurate temperature readings displayed on the vehicle's display

How to Fix P0071 Dodge

  1. Connect a diagnostic scanner to the vehicle's OBD-II port to retrieve the specific fault code (P0071) and confirm the issue with the AAT sensor.
  2. Inspect the AAT sensor and its wiring for any visible damage, corrosion, or loose connections. Replace or repair as necessary.
  3. Clear the fault code from the ECM's memory using the diagnostic scanner and test drive the vehicle to ensure the issue has been resolved.
  4. If the problem persists, consider replacing the AAT sensor with a new OEM or aftermarket unit to restore proper functionality.
  5. Perform a final check to verify that the check engine light is no longer illuminated, and the vehicle operates smoothly under various driving conditions.

Cost to Fix P0071 Dodge

The typical repair costs for addressing a P0071 code related to the Ambient Air Temperature sensor in a Dodge vehicle can range from $100 to $300, including parts and labor. However, it's important to note that the specific diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. To obtain a more accurate estimate, it's recommended to inquire about local rates before proceeding with the repair.

When is the Code Detected?

The Engine Control Module (ECM) has detected an open or short circuit condition on the Ambient Air Temperature (AAT) sensor circuit.

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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 Dodge Code

1. What does the OBDII code P0071 mean on a Dodge?

P0071 indicates an issue with the Ambient Air Temperature Sensor's performance, often relating to an implausible or inconsistent signal being sent to the vehicle's computer.

2. What are the common symptoms of a P0071 code?

Symptoms include incorrect outside temperature readings, potential climate control system issues, and possible impacts on engine performance or fuel efficiency.

3. What causes the P0071 code to appear?

Common causes include a faulty ambient air temperature sensor, damaged wiring or connections, or an issue with the vehicle's Engine Control Module (ECM).

4. How do I fix a P0071 code on my Dodge?

Inspect the ambient air temperature sensor and its wiring for damage or corrosion. Replace the sensor if it's faulty or repair any damaged wiring.

5. Where is the ambient air temperature sensor located on a Dodge?

The sensor is typically located near the front grille or bumper area, where it can measure outside air temperature accurately.

6. Can I drive my Dodge with a P0071 code?

Yes, but it’s not recommended to delay repairs, as the code could affect climate control functions and potentially lead to reduced fuel efficiency.

7. How can I diagnose a P0071 code on a Dodge?

Use an OBDII scanner to confirm the code, then visually inspect the sensor and wiring. Test the sensor's resistance with a multimeter if needed.

8. Does clearing the P0071 code fix the problem?

Clearing the code may temporarily remove it, but the underlying issue must be resolved to prevent the code from reappearing.

9. How much does it cost to fix a P0071 code?

Repair costs vary but typically range from $50 to $200, depending on whether the sensor needs replacement or wiring repairs are required.

10. Can extreme weather cause a P0071 code?

Yes, extreme cold or heat can sometimes cause the sensor to malfunction, leading to this code. However, persistent issues usually indicate a sensor or wiring problem.

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