Manufacturer Code Charts: 1633

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
Operation number of operation texts and work units or standard texts and flat rates:27-0641Warning!In the event of stored faults with high fault frequency counter:The control module must not be replaced.Cause

- Control module has an internal error.
REMEDY

- Disassemble and assemble automatic transmission using the repair instructions.
- Exchange electrohydraulic control unit.
Notes on submitting warranty or goodwill claimsSEAG damage code (7 digits): 54553 73IMPORTANT NOTEFollowing the repair measures, the following checks MUST be carried out using the Diagnosis Assistance System, menu 'Initial startup'

- Initial startup with manual settings input for new control unit
Continue with button "F2"







Warning!Communication with ECU required.