Control Module: Testing and Inspection

- Connect Scan tool VAG 1551, enter Code word "O2 Transmission electronics" and follow through program until "Function selected XX" appears on Display, Connecting and Operating VAG 1551 Scan Tool

Readout in display

Rapid data transfer Q
02 transmission electronics

- Confirm entry with the key Q.

Readout in display

8D0927156 AGV 01V 2.8l 2V RDW D80
Coding 00000 WSC 00000.

The control module identification is displayed:

Depending on the production status (data status) the control module may display a different control module identification than shown in this example. For allocation of the control module, - Parts Catalog.
- 8D0927156: Part Number
- AG5 01V: 5-Speed Automatic transmission 01V
- D59: EPROM (data status)

Readout in display

Control module does not answer! HELP.

A list of the possible causes of malfunctions can be printed out by pressing the HELP key.

- After correcting possible causes of malfunctions, once again enter address word 02 for "transmission electronics" and confirm with Q key.

Readout in display

Control module does not answer! HELP

If "Control module does not answer!" is again displayed: Test supply voltage of the control unit.
- Perform test step 1, Electrical test. [1][2]Component Tests and General Diagnostics
- Check wiring connections to Data Link Connector (DLC).
- See Wiring Diagrams.
- See DTC table, DTC 65535, Control module faulty!
- Press --> key.

Readout in display

Rapid data transfer Help
Select function XX

A list of the possible functions is printed out after pressing the HELP key.