Engine-Codes.com
Engine-Codes – Chrysler – P0071 Chrysler

P0071 Chrysler Code - Ambient Air Temperature Sensor Performance

Quick Answer

The P0071 diagnostic trouble code (DTC) for Chrysler vehicles refers to the Ambient Air Temperature Sensor Performance. Common causes include Faulty ambient air temperature sensor, Wiring or connection issues between the sensor and PCM, Corrosion or damage to the sensor or its wiring. 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 Chrysler indicates Ambient Air Temperature Sensor Performance.
Common causes
Common causes include Faulty ambient air temperature sensor, Wiring or connection issues between the sensor and PCM, Corrosion or damage to the sensor or its wiring.
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 Aug 30, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0071 Chrysler Description

The P0071 diagnostic trouble code (DTC) for Chrysler vehicles refers to the Ambient Air Temperature Sensor Performance. This code is triggered when the Powertrain Control Module (PCM) detects that the signal from the ambient air temperature sensor is not within the expected range. The ambient air temperature sensor is responsible for monitoring the outside air temperature, which is crucial for the engine management system to adjust fuel delivery and ignition timing for optimal performance and efficiency. If the sensor is not functioning properly, it can lead to inaccurate temperature readings, potentially causing the engine to run too rich or too lean, affecting fuel economy, emissions, and overall performance.

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

Common Causes of P0071 Chrysler

  1. Faulty ambient air temperature sensor.
  2. Wiring or connection issues between the sensor and PCM.
  3. Corrosion or damage to the sensor or its wiring.
  4. Issues with the PCM or related control modules.
  5. Environmental factors such as extreme temperatures affecting sensor performance.

Symptoms of P0071 Chrysler

  1. Incorrect temperature readings on the dashboard display.
  2. Engine running rich or lean, leading to poor fuel economy.
  3. Rough idling or stalling.
  4. Check Engine Light illuminated on the dashboard.
  5. Reduced engine performance or power output.

How to Fix P0071 Chrysler

  1. Begin by locating the ambient air temperature sensor, typically located near the front grille or bumper.
  2. Inspect the sensor and its wiring for any visible damage, corrosion, or loose connections.
  3. Test the sensor using a multimeter to check for proper resistance values.
  4. If the sensor is faulty, replace it with a new OEM or aftermarket sensor.
  5. Clear the DTC with a scan tool and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0071 Chrysler

The cost of repairing a P0071 code for the ambient air temperature sensor performance can vary depending on the specific vehicle make and model, as well as the labor rates in your area. On average, the cost of parts for a new ambient air temperature sensor ranges from $20 to $50, while labor costs can range from $80 to $150 per hour. Therefore, the total repair cost could range from $100 to $300 or more. It's recommended to consult with a local auto repair shop for a more accurate estimate based on your vehicle's requirements.

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.

Need more information about the P0071 Chrysler code?

Need more information on how to fix the P0071 Chrysler code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0071 Chrysler 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 P0071 Chrysler Code

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

P0071 indicates an issue with the Ambient Air Temperature Sensor Performance, meaning the sensor's readings are inconsistent or out of the expected range.

2. What are the symptoms of a P0071 code on a Chrysler?

Symptoms may include incorrect outside temperature readings on the dashboard, erratic climate control performance, or the air conditioning system not working properly.

3. What causes the P0071 code on a Chrysler?

Common causes include a malfunctioning ambient air temperature sensor, damaged or corroded wiring, a loose sensor connection, or a faulty engine control module (ECM).

4. Can I drive my Chrysler with a P0071 code?

Yes, you can usually drive with a P0071 code, but it may affect climate control functions. However, it’s best to diagnose and fix the issue to avoid further complications.

5. How do I diagnose a P0071 code on a Chrysler?

Start by checking the ambient air temperature sensor for visible damage. Inspect the wiring and connectors for corrosion or breaks, and use a multimeter to test the sensor’s resistance.

6. How is the P0071 code fixed on a Chrysler?

Repairs typically involve cleaning or replacing the ambient air temperature sensor, repairing damaged wiring, or re-establishing proper sensor connections.

7. Where is the ambient air temperature sensor located on a Chrysler?

The ambient air temperature sensor is usually located near the front grille or underneath the front bumper, exposed to outside air.

8. Can a faulty ambient air temperature sensor affect the air conditioning?

Yes, a faulty sensor can provide inaccurate temperature readings, which may cause the air conditioning system to malfunction or not operate efficiently.

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

Repair costs can vary based on the issue. Replacing the ambient air temperature sensor typically costs $50 to $150, including parts and labor.

10. Will clearing the P0071 code fix the problem permanently?

Clearing the code may temporarily remove the warning, but if the underlying issue isn’t resolved, the code will likely return.

Discuss the causes and fixes for P0071 Chrysler OBDII Code

Submit a New Comment