AutoCodes – Audi – P1652 Audi

P1652 Audi Code - Transmission Control Module System Malfunction

Quick Answer

P1652 Audi indicates Transmission Control Module System Malfunction. Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) 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: P1652 Audi indicates Transmission Control Module System Malfunction.
Common causes: Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) 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 7,993

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 05, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1652 Audi Description

OBDII Code P1652 Audi - Transmission Control Module System Malfunction - AutoCodes.com — P1652 Audi Code - Transmission Control Module System Malfunction

What does this mean?

What are the Possible Causes of the DTC P1652 Audi?

Faulty Transmission Control Module (TCM)
Transmission Control Module (TCM) harness is open or shorted
Transmission Control Module (TCM) circuit poor electrical connection

How to Fix the DTC P1652 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 P1652 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 P1652 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 P1652 Audi Code

1. What does the P1652 code mean on an Audi?

The P1652 code indicates a Transmission Control Module (TCM) system malfunction, which can affect the vehicle's shifting and transmission performance.

2. What are common symptoms of the P1652 code in an Audi?

Symptoms may include erratic shifting, transmission stuck in one gear, decreased fuel efficiency, and the Check Engine Light being illuminated.

3. What causes the P1652 Transmission Control Module System Malfunction?

Common causes include damaged wiring or connectors, a faulty transmission control module, software issues, or low transmission fluid levels.

4. Can driving with the P1652 code damage my Audi?

Yes, driving with this code can lead to further transmission damage and reduced performance if the issue is not addressed promptly.

5. How is the P1652 code diagnosed?

A mechanic will use an OBD-II scanner to retrieve the code, inspect the wiring and connectors, check transmission fluid levels, and test the TCM for faults.

6. How do I fix the P1652 code on my Audi?

Repairs may include replacing damaged wiring, repairing or replacing the TCM, updating the software, or refilling/servicing the transmission fluid.

7. Can I reset the P1652 code without fixing the issue?

While you can clear the code temporarily, it will likely return unless the underlying problem is resolved.

8. Is the P1652 code specific to Audi vehicles?

No, this code can appear on other vehicles with similar transmission systems, but the troubleshooting steps may vary.

9. How much does it cost to repair the P1652 code?

Repair costs depend on the specific issue but can range from $150 to $1,000, depending on whether wiring repairs, TCM replacement, or fluid servicing is needed.

10. Can a faulty Transmission Control Module cause other problems?

Yes, a failing TCM can lead to transmission overheating, gear slippage, and potential damage to other transmission components.