Transmission Control Module (TCM), replacing

WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2005 Volkswagen GTI, 2004 Volkswagen R32, 2004 Volkswagen Jetta, 2004 Volkswagen GTI, and 2003 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Work procedure

First, check control module identification of the previous Transmission Control Module (TCM) as follows:

Connect diagnostic tester. Refer to Diagnostic tester, connecting
Switch ignition on.
Under address word 33, select "Diagnostic mode 9: Vehicle information".
Select the vehicle information "Test-ID 04: Calibration Identification".

Control module identification will be displayed, e.g.:

01M927733MH 0001

End diagnosis and switch ignition off.
Remove wiper arms and wind cowl.

Fig 1: Releasing Multi-Pin Connector

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Then open locking mechanism of connector in -direction of arrow- and disconnect connector from control module.

Fig 2: Identifying TCM Screws

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Remove mounting bolts (arrows).
Remove old control module.
Insert new control module and bolt firmly.

Fig 3: Locking Multi-Pin Connector On TCM -J217-

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Connect connector to control module and lock in -direction of arrow-.

Rest of installation is performed in the reverse order of removal.

Check whether the new control module identification matches the old control module identification.

If Transmission Control Module (TCM) -J217- was replaced:

Code the Transmission Control Module (TCM):

Refer to VAS5051 Vehicle Diagnostic, Testing and Information System; Guided Fault Finding; Vehicle System Test or VAS5052; Vehicle Self-Diagnosis

Generate readiness code. Refer to Readiness code, generating