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Engine-Codes – Audi – P1619 Audi

P1619 Audi Code - Glow Plug Relay Open Circuit / Short To Ground

Quick Answer

The P1619 diagnostic trouble code (DTC) for Audi vehicles indicates a problem with the glow plug relay open circuit or short to ground. Common causes include Faulty glow plug relay, Corroded or damaged wiring/connectors in the glow plug relay circuit, Short circuit or grounding issue in the glow plug relay circuit. 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
P1619 Audi indicates Glow Plug Relay Open Circuit / Short To Ground.
Common causes
Common causes include Faulty glow plug relay, Corroded or damaged wiring/connectors in the glow plug relay circuit, Short circuit or grounding issue in the glow plug relay circuit.
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 09, 2024
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Code P1619 Audi Description

The P1619 diagnostic trouble code (DTC) for Audi vehicles indicates a problem with the glow plug relay open circuit or short to ground. Glow plugs are crucial components of a diesel engine's ignition system, especially during cold starts when the air-fuel mixture may not ignite easily. The glow plug relay controls the activation of the glow plugs, which preheat the combustion chamber to facilitate smooth engine starting.

OBDII Code P1619 Audi - Glow Plug Relay Open Circuit / Short To Ground
P1619 Audi Code - Glow Plug Relay Open Circuit / Short To Ground

Common Causes of P1619 Audi

  1. Faulty glow plug relay.
  2. Corroded or damaged wiring/connectors in the glow plug relay circuit.
  3. Short circuit or grounding issue in the glow plug relay circuit.
  4. Faulty glow plugs.
  5. Issues with the vehicle's battery or charging system affecting the glow plug relay operation.

Symptoms of P1619 Audi

  1. Difficulty starting the engine, especially in cold weather.
  2. Rough idling or misfiring after starting the engine.
  3. Decreased fuel efficiency.
  4. Increased emissions.
  5. Engine stalling or hesitation during acceleration.

How to Fix P1619 Audi

  1. Diagnose the issue by conducting a thorough inspection of the glow plug relay, wiring, and connectors for any visible damage or corrosion.
  2. Test the glow plug relay using a multimeter to check for proper functionality.
  3. Check the glow plugs for resistance to ensure they are working correctly.
  4. Replace any faulty glow plugs, wiring, connectors, or the glow plug relay as needed.
  5. Clear the error code and test the vehicle to ensure the issue has been resolved.

Cost to Fix P1619 Audi

The typical repair costs for addressing a glow plug relay open circuit or short to ground issue can range from $200 to $500, including parts and labor. However, actual costs may vary depending on the specific Audi model, the extent of the problem, and labor rates at the repair shop. It's recommended to obtain quotes from multiple shops to compare prices and ensure a fair estimate for the repair.

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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 P1619 Audi Code

1. What does the OBDII code P1619 mean on an Audi?

Code P1619 indicates a problem with the glow plug relay circuit, specifically an open circuit or a short to ground.

2. What are the common symptoms of code P1619 on an Audi?

Symptoms may include difficulty starting the engine, especially in cold weather, rough starts, poor fuel efficiency, and the check engine light being illuminated.

3. What causes the P1619 code on an Audi?

Common causes include a faulty glow plug relay, damaged wiring or connectors in the glow plug system, or an issue with the engine control module (ECM).

4. Can a bad glow plug cause code P1619 on an Audi?

No, this code specifically points to a problem with the glow plug relay circuit, not the glow plugs themselves.

5. How do you diagnose the P1619 code on an Audi?

Diagnosis includes checking the glow plug relay, inspecting wiring and connectors for damage or corrosion, and testing the relay circuit for continuity and shorts.

6. Is it safe to drive an Audi with the P1619 code?

While the car may still run, starting difficulties and potential engine damage in cold weather make it important to address the issue promptly.

7. How do you fix the P1619 code on an Audi?

Repairs typically involve replacing the faulty glow plug relay, repairing damaged wiring, or cleaning corroded connectors in the circuit.

8. Where is the glow plug relay located on an Audi?

The glow plug relay is usually located in the engine bay near the firewall or fuse box, but the exact location varies by model.

9. Can a blown fuse cause the P1619 code on an Audi?

Yes, a blown fuse in the glow plug relay circuit can cause this code by interrupting power to the system.

10. How much does it cost to repair the P1619 code on an Audi?

Repair costs vary but typically range from $100 to $300, depending on whether the relay, wiring, or other components need replacement.

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