AutoCodes – Audi – P1923 Audi

P1923 Audi Code - Engine Control Module Malfunction

Quick Answer

P1923 Audi indicates Engine Control Module Malfunction. Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) circuit poor electrical connection. 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: P1923 Audi indicates Engine Control Module Malfunction.
Common causes: Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) circuit poor electrical connection.
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.

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Code Popularity 21,267

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 28, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1923 Audi Description

OBDII Code P1923 Audi - Engine Control Module Malfunction - AutoCodes.com — P1923 Audi Code - Engine Control Module Malfunction

What does this mean?

What are the Possible Causes of the DTC P1923 Audi?

Faulty Engine Control Module (ECM)
Engine Control Module (ECM) harness is open or shorted
Engine Control Module (ECM) circuit poor electrical connection

How to Fix the DTC P1923 Audi?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1923 Audi code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Need more information on how to fix the P1923 Audi code? Get Access to Factory Service Manuals

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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 P1923 Audi Code

1. What are the common symptoms of OBDII code P1923 in an Audi?

Symptoms may include engine misfires, rough idling, stalling, decreased fuel efficiency, and the illumination of the check engine light.

2. What can cause the Engine Control Module Malfunction (P1923) in an Audi?

Potential causes of this code may include a faulty engine control module (ECM), wiring issues, poor connections, or a software malfunction within the ECM.

3. Can driving with OBDII code P1923 Audi cause further damage?

Continuing to drive with P1923 may lead to more severe engine issues over time, such as increased emissions, reduced performance, and potential damage to other components.

4. How can I diagnose and repair OBDII code P1923 in my Audi?

Diagnosis often involves using a diagnostic scanner to retrieve the code, followed by inspecting the ECM and related components for any visible damage. Repair typically involves addressing the root cause, such as replacing a faulty ECM or repairing wiring issues.

5. Is it safe to reset the OBDII code P1923 in my Audi using a scanner?

Resetting the code with a scanner may temporarily turn off the check engine light, but it will not fix the underlying issue causing P1923. It is recommended to diagnose and repair the problem to prevent further complications.

6. Can a DIY enthusiast fix OBDII code P1923 in an Audi?

Depending on the cause of the code, some DIY enthusiasts with automotive repair experience may be able to address simpler issues like loose connections or damaged wiring. However, more complex problems like a faulty ECM may require professional diagnosis and repair.

7. How much does it typically cost to repair OBDII code P1923 in an Audi?

The cost of repairing P1923 can vary greatly depending on the specific cause of the code and the extent of the repairs needed. Costs may range from simple fixes like tightening connections to more expensive replacements of components like the ECM.

8. Will OBDII code P1923 Audi automatically pass emissions testing after repair?

After successfully diagnosing and repairing the underlying issue causing P1923, your Audi should pass emissions testing as long as no other related problems are present.

9. Are there any preventive measures to avoid OBDII code P1923 in an Audi?

Regular maintenance, such as checking and cleaning connections, inspecting wiring harnesses, and keeping the ECM software up to date, can help prevent issues that may trigger P1923 in your Audi.

10. How soon should I address OBDII code P1923 in my Audi to prevent further damage?

It is advisable to address P1923 as soon as possible to prevent potential damage to the engine or other components, and to ensure optimal performance and fuel efficiency of your Audi.