0641

Component Y3/8n4 (Fully integrated transmission control (VGS) control unit) is defective.


Possible cause:

- Y3/8n4 (Fully integrated transmission control (VGS) control unit)
Affected functions:

- Automatic transmission Function

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Test 1: Remedial action if component 'Y3/8n4 (Fully integrated transmission control (VGS) control unit)' is faulty

1. Remedial action if component 'Y3/8n4 (Fully integrated transmission control (VGS) control unit)' is faulty
Test prerequisites

- First of all process all other current fault codes.
POSSIBLE CAUSES

- Component Y3/8n4 (Fully integrated transmission control (VGS) control unit) is defective.
Preconditions

- Print out the initial quick test log before processing the fault code 0641.
- Create control unit log.
Important notes before commencing repair measures

- Always use the same diagnostic unit after the repair measure.
Continue with button F2

Sequence

- Data are being read from the old control unit.
Start process with button F2.

1. No further information available.