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Engine-Codes – Generic – P1D73

P1D73 Code - Active Grill Shutter Performance

Quick Answer

The P1D73 code indicates an issue with the Active Grill Shutter (AGS) performance in the vehicle. Common causes include Faulty Active Grill Shutter motor, Wiring issues or electrical connection problems, Debris blocking the AGS mechanism. 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
P1D73 indicates Active Grill Shutter Performance.
Common causes
Common causes include Faulty Active Grill Shutter motor, Wiring issues or electrical connection problems, Debris blocking the AGS mechanism.
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 06, 2024
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Code P1D73 Description

The P1D73 code indicates an issue with the Active Grill Shutter (AGS) performance in the vehicle. The Active Grill Shutter is a component designed to improve aerodynamics and fuel efficiency by adjusting the airflow through the grill opening. When this system malfunctions, it can lead to decreased fuel efficiency, engine performance issues, and potentially even overheating problems. The AGS system is controlled by the vehicle's engine control module (ECM) based on various inputs such as engine temperature, vehicle speed, and ambient air temperature.

OBDII Code P1D73 - Active Grill Shutter Performance
P1D73 Code - Active Grill Shutter Performance

Common Causes of P1D73

  1. Faulty Active Grill Shutter motor
  2. Wiring issues or electrical connection problems
  3. Debris blocking the AGS mechanism
  4. Software or calibration issues with the ECM
  5. Mechanical damage to the AGS components

Symptoms of P1D73

  1. Decreased fuel efficiency
  2. Engine overheating
  3. Engine performance issues
  4. Illumination of the check engine light
  5. In some cases, a noticeable increase in engine noise

How to Fix P1D73

  1. Retrieve the fault codes with a diagnostic scanner to confirm the P1D73 code.
  2. Inspect the AGS system for any visible damage, debris, or wiring issues.
  3. Test the AGS motor and electrical connections for proper functioning.
  4. Clear the code and reset the ECM to see if the issue persists.
  5. If necessary, replace the AGS motor, repair wiring connections, or recalibrate the ECM.

Cost to Fix P1D73

The cost of repairing the Active Grill Shutter performance issue can vary depending on the specific cause of the problem and the labor rates in your area. Generally, replacing the AGS motor or repairing wiring connections can cost anywhere from $200 to $500, including parts and labor. However, more complex issues or ECM recalibration may increase the total repair cost. It's recommended to consult with a professional mechanic to get an accurate estimate for your specific vehicle.

Need more information about the P1D73 code?

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Code P1D73 Information for Specific Makes

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 P1D73 Code

1. What are common symptoms of OBDII code P1D73 (Active Grill Shutter Performance)?

The common symptoms include poor fuel efficiency, engine overheating, and possible illumination of the check engine light.

2. What causes OBDII code P1D73 to trigger?

The code P1D73 is usually triggered when there is a malfunction in the active grill shutter system, which regulates airflow to the engine for improved efficiency.

3. How can I diagnose the issue related to OBDII code P1D73?

Diagnosing the issue involves checking the active grill shutter components for any physical damage, loose connections, or electrical issues using a diagnostic scanner.

4. What are some repair tips for resolving OBDII code P1D73?

Repair tips for resolving P1D73 may include inspecting and cleaning the active grill shutter components, replacing any faulty parts, and resetting the fault codes with a diagnostic tool.

5. Can I drive my vehicle with OBDII code P1D73 active?

It is not recommended to drive the vehicle with the P1D73 code active, as it can lead to reduced engine performance and potential damage if the underlying issue is not addressed promptly.

6. How serious is OBDII code P1D73 (Active Grill Shutter Performance)?

While the code itself may not cause immediate harm to the vehicle, ignoring it can lead to decreased fuel efficiency and potential engine overheating issues over time.

7. Are there any common mistakes to avoid when dealing with OBDII code P1D73?

One common mistake to avoid is assuming the issue is minor and neglecting to address it promptly, as it can lead to more significant problems down the line.

8. How much does it typically cost to repair OBDII code P1D73?

The cost of repairing OBDII code P1D73 can vary depending on the extent of the issue, but it may involve relatively minor repairs or component replacements.

9. Can a DIY enthusiast fix OBDII code P1D73 at home?

Depending on the DIY enthusiast's skill level and access to tools, it may be possible to address some aspects of the P1D73 code at home, such as inspecting and cleaning components.

10. Is it necessary to visit a mechanic for OBDII code P1D73, or can I ignore it?

While you can initially try to diagnose and address the issue yourself, it is generally recommended to consult a mechanic to ensure proper diagnosis and repair of OBDII code P1D73.

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