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Engine-Codes – Audi – P1385 Audi

P1385 Audi Code - Control Module Fault

Quick Answer

The P1385 Audi code indicates a Control Module Fault, specifically related to the engine control module (ECM) or powertrain control module (PCM). Common causes include Corroded or damaged wiring/connectors, Faulty control module, Electrical interference or short circuits. 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
P1385 Audi indicates Control Module Fault.
Common causes
Common causes include Corroded or damaged wiring/connectors, Faulty control module, Electrical interference or short circuits.
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 P1385 Audi Description

The P1385 Audi code indicates a Control Module Fault, specifically related to the engine control module (ECM) or powertrain control module (PCM). This fault typically points to a communication error or malfunction within the control module, which is responsible for managing various engine functions and systems. The control module plays a crucial role in monitoring sensors, adjusting fuel delivery, ignition timing, and other parameters to ensure optimal engine performance and efficiency.

OBDII Code P1385 Audi - Control Module Fault
P1385 Audi Code - Control Module Fault

Common Causes of P1385 Audi

  1. Corroded or damaged wiring/connectors
  2. Faulty control module
  3. Electrical interference or short circuits
  4. Software issues within the control module
  5. Environmental factors such as moisture or heat affecting the control module

Symptoms of P1385 Audi

  1. Engine running rough or misfiring
  2. Loss of power and acceleration
  3. Reduced fuel efficiency
  4. Vehicle stalling or difficulty starting
  5. Illumination of the Check Engine Light

How to Fix P1385 Audi

  1. Begin by conducting a thorough visual inspection of the wiring harness, connectors, and control module for any signs of damage or corrosion.
  2. Use a diagnostic scanner to retrieve and clear the fault code from the control module memory.
  3. Perform a control module reset or reprogramming procedure, if applicable, to address any software issues.
  4. Test the control module's communication with other engine components to ensure proper functionality.
  5. If necessary, replace the control module or repair any damaged wiring/connectors to resolve the fault.

Cost to Fix P1385 Audi

The typical repair costs for a Control Module Fault can vary depending on the extent of the issue and the specific components involved. In general, replacing a control module can range from $500 to $1500, including parts and labor. Additional costs may apply for diagnostic testing, wiring repairs, or reprogramming procedures. It's important to consider the specific diagnosis time and labor rates at your local auto repair shop, as these can impact the overall cost of 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 P1385 Audi Code

1. What does the OBDII code P1385 mean on an Audi?

P1385 on an Audi indicates a control module fault, typically related to the ignition control module or a similar critical electronic component.

2. What are the common symptoms of the P1385 code in an Audi?

Symptoms may include engine misfires, poor acceleration, difficulty starting, reduced fuel efficiency, or the check engine light turning on.

3. What causes the P1385 code to appear in an Audi?

Common causes include a faulty ignition control module, corroded or damaged wiring, poor electrical connections, or a malfunctioning ECU.

4. Can driving with the P1385 code damage my Audi?

Yes, ignoring the P1385 code can lead to further engine performance issues, misfires, and potential damage to other components like the catalytic converter.

5. How is the P1385 code diagnosed in an Audi?

A technician will use an OBDII scanner to confirm the code, inspect the ignition control module, check wiring and connections, and possibly test the ECU for faults.

6. Can I fix the P1385 code myself?

If you’re experienced with car electronics, you can inspect and replace the ignition control module or repair wiring. However, advanced diagnostics may require professional expertise.

7. How much does it cost to repair the P1385 code on an Audi?

Repair costs vary but may range from $100 to $500 depending on whether the issue is with wiring, the ignition control module, or the ECU.

8. Is the P1385 code specific to Audis?

No, while P1385 is common in Audis, it can also appear in other makes with similar control module or ignition system issues.

9. Does the P1385 code mean the ECU is failing?

Not necessarily. While the ECU can be a cause, the fault is more commonly related to the ignition control module or wiring issues.

10. How can I prevent the P1385 code from reoccurring in my Audi?

Regular maintenance, inspecting and replacing worn electrical components, and promptly addressing check engine light warnings can help prevent this code.

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