Volkswagen Tiguan

U0401

The U0401 code for a Volkswagen Tiguan First Generation (2007-2018) indicates a communication error between control modules, specifically that the transmission control module (TCM) has received an invalid data message from another control module.

5 SolutionsU-CodeNetwork

Error Code Type

Network

Components

2 affected

TransmissionElectrical

Symptoms

10 common

•Check engine light illuminated
•Transmission shifting issues (harsh shifts or slipping)
•Loss of power during acceleration
+7 more

Most Affected Generations

2 generations

2nd Gen

Top Affected Components

2 components

Transmission

Electrical

Severity Levels

2 levels

high

medium

Quick Facts

Total Solutions

Affected Components

Common Symptoms

Generations

All Solutions

Showing 5 of 5 solutions for error code U0401 across all generations.

what does U0401 code mean for Volkswagen Tiguan First Generation (2007-2018)

Transmission

Check engine light illuminatedTransmission shifting issues (harsh shifts or slipping)+3

U0401•5N

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what does the U0401 code mean for my Volkswagen Tiguan Second Generation (2018-present)

Transmission

The U0401 code in a 2018-present Volkswagen Tiguan Second Generation indicates an invalid data received from the vehicle’s Transmission Control Module (TCM).

Check engine light illuminatedErratic shifting or transmission performance+3

U0401•2nd Gen

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how to troubleshoot a U0401 code in my Volkswagen Tiguan Second Generation (2018-present)

Transmission

The U0401 code in a 2018-present Volkswagen Tiguan indicates an invalid data received from the engine control module (ECM) to the transmission control module (TCM), suggesting potential communication issues or sensor malfunctions.

Check engine light illuminatedErratic shifting or transmission performance+4

U0401•2nd Gen

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what does the U0401 code indicate for my Volkswagen Tiguan Second Generation (2018-present)?

Electrical

The U0401 code on a 2018-present Volkswagen Tiguan indicates an invalid data received from the engine control module (ECM) or transmission control module (TCM). This can lead to communication issues between the vehicle's modules.

Check engine light illuminatedErratic shifting or transmission performance+4

U0401•2nd Gen

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how can I resolve the U0401 code on my Volkswagen Tiguan Second Generation (2018-present)?

Electrical

The U0401 code indicates an issue with the vehicle's communication network, specifically that the engine control module (ECM) has received an invalid data message from the transmission control module (TCM) in the Volkswagen Tiguan (Second Generation, 2018-present).

Check engine light illuminatedTransmission shifting issues or erratic behavior+3

U0401•2nd Gen

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