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Engine-Codes – Subaru – P1572 Subaru

P1572 Subaru Code - EGI Immobilizer Communication

Quick Answer

The P1572 code for Subaru vehicles refers to an issue with the EGI (Engine Control Module Immobilizer) communication. Common causes include Faulty immobilizer key or key fob, Wiring issues or poor connections between the immobilizer system and engine control module, Faulty immobilizer system components. 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
P1572 Subaru indicates EGI Immobilizer Communication.
Common causes
Common causes include Faulty immobilizer key or key fob, Wiring issues or poor connections between the immobilizer system and engine control module, Faulty immobilizer system components.
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 P1572 Subaru Description

The P1572 code for Subaru vehicles refers to an issue with the EGI (Engine Control Module Immobilizer) communication. The EGI immobilizer is a security feature that prevents the engine from starting without the correct key. When this system detects a communication problem, it can lead to the engine not starting or stalling while driving. This code typically indicates a fault in the communication between the immobilizer system and the engine control module, which can result in the vehicle being immobilized.

OBDII Code P1572 Subaru - EGI Immobilizer Communication
P1572 Subaru Code - EGI Immobilizer Communication

Common Causes of P1572 Subaru

  1. Faulty immobilizer key or key fob
  2. Wiring issues or poor connections between the immobilizer system and engine control module
  3. Faulty immobilizer system components
  4. Corrosion or damage to the immobilizer antenna
  5. Issues with the engine control module

Symptoms of P1572 Subaru

  1. Engine cranks but doesn't start
  2. Engine starts but immediately stalls
  3. Immobilizer light stays on or flashes on the dashboard
  4. Vehicle goes into "limp mode" with limited performance
  5. Inability to start the engine even with the correct key

How to Fix P1572 Subaru

  1. Check and replace the immobilizer key or key fob
  2. Inspect and repair any wiring issues or poor connections
  3. Test and replace faulty immobilizer system components
  4. Clean or replace the immobilizer antenna
  5. Check and reprogram the engine control module if necessary

Cost to Fix P1572 Subaru

The typical repair costs for resolving the P1572 code can range from $200 to $500, including parts and labor. However, it is 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. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It is recommended to get quotes from multiple reputable shops to get a more accurate estimate.

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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 P1572 Subaru Code

1. What are the common symptoms of OBDII code P1572 in a Subaru related to EGI Immobilizer Communication?

- Common symptoms include difficulty starting the vehicle, engine stalling, and the immobilizer system not recognizing the key.

2. What are the possible causes of OBDII code P1572 in a Subaru related to EGI Immobilizer Communication?

- Possible causes may include a faulty immobilizer key, issues with the immobilizer control module, wiring problems, or a malfunctioning ECU.

3. How can I diagnose OBDII code P1572 in my Subaru related to EGI Immobilizer Communication?

- Diagnosing this code typically involves checking the immobilizer key, inspecting the wiring connections, testing the immobilizer control module, and verifying ECU communication.

4. Can a DIYer repair OBDII code P1572 in a Subaru related to EGI Immobilizer Communication?

- Repairing this code may require specialized tools and knowledge, so it is recommended to consult a professional automotive technician or a Subaru dealership for proper diagnosis and repair.

5. Are there any temporary solutions for OBDII code P1572 in a Subaru related to EGI Immobilizer Communication?

- Disconnecting the battery for a few minutes may reset the system and temporarily clear the code, but it is important to address the underlying issue to prevent further problems.

6. How much does it typically cost to repair OBDII code P1572 in a Subaru related to EGI Immobilizer Communication?

- The cost of repair can vary depending on the specific cause of the issue, but it may involve replacing the immobilizer key, control module, or ECU, which can range from a few hundred to over a thousand dollars.

7. Can OBDII code P1572 in a Subaru related to EGI Immobilizer Communication cause any long-term damage if left unresolved?

- Ignoring this code may lead to persistent starting issues, potential engine stalling, and a higher risk of theft due to a malfunctioning immobilizer system, so it is important to address it promptly.

8. How long does it typically take to repair OBDII code P1572 in a Subaru related to EGI Immobilizer Communication?

- The repair time can vary depending on the exact cause of the issue and the availability of parts, but it may take a few hours to a day to diagnose and fix the problem.

9. Are there any recalls or technical service bulletins related to OBDII code P1572 in a Subaru related to EGI Immobilizer Communication?

- It is recommended to check with Subaru dealership or online resources for any recalls or technical service bulletins related to this specific OBDII code to see if there are known issues or solutions provided by the manufacturer.

10. Is it safe to drive my Subaru with OBDII code P1572 related to EGI Immobilizer Communication illuminated?

- It is generally not recommended to drive the vehicle with this code active, as it may lead to unexpected engine stalling or starting issues, increasing the risk of being stranded or involved in an accident.

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