Automatic Test Sequence
Automatic Test Sequence
The automatic test sequence checks all the DTC memories of the control modules.
- Before selecting the transmission control module perform the automatic test sequence. Malfunctions of other control modules can influence the transmission control module. This is especially valid on vehicles with data bus.
- Switch on ignition.
Indicated on display:
V.A.G - On Board Diagnostic HELP
1 - Rapid data transfer 1)
2 - Blink code output 1)
1) Is displayed alternately
- Press key -1- for "Rapid data transfer" operating mode.
- Switch on printer with the PRINT key (indicator lamp in key lights up).
Indicated on display:
Rapid data transfer HELP
Select function XX
- Press key -0- twice; 00 enters the "Automatic test sequence" function.
- Confirm entry with Q key.
Then all control module identifications, together with entries which may be in DTC memory, are displayed.
- After test sequence, the V.A.G 1551 returns to the following start position:
Indicated on display:
V.A.G - On Board Diagnostic HELP
1 - Rapid data transfer 1)
2 - Blink code output 1)
1) appears alternately
Select automatic transmission control module
- Switch on ignition.
- Switch on printer with the PRINT key (indicator lamp in key lights up).
- Press key 1 for "Rapid data transfer" mode.
Indicated on display:
Rapid data transfer HELP
Enter address word XX
- Press keys 0 and 2. (Enter the address word "transmission electronics" with 02.)
Indicated on display:
Rapid data transfer Q
02 Transmission electronics
- Confirm entry with key Q.
Indicated on display:
01P927733Q AG4 Transmission 01P 2937
Coding 00000 WSC 00000
The control module identification, the coding and the dealership number of the V.A.G 1551 are displayed:
Example for control module identification
Depending upon build level (program level) the control module can indicate a different control module identification, to that shown in the example. Allocation of control module See Parts catalog.
- 01P 927 733 Q: Part No.
- AG4 Transmission 01 P: 4-speed automatic transmission 01 P
- 2937:EPROM (program level)
- Coding 00000: is not required at present.
- WSC 00000: V.A.G 1551 dealership number with which the last coding was performed.
Indicated on display:
Control module does not answer! HELP
- By pressing the HELP key, a list of possible malfunction causes is printed out.
- After eliminating the possible causes of malfunctions, again enter the address word 02 for "transmission electronics" and confirm.
If "Control module does not answer!" again appears:
Indicated on display:
Control module does not answer! HELP
Check control module voltage supply.
- Perform test step 1. Transmission: Electrical Checks
- Check wiring connections to diagnostic sockets
- See DTC table. VAG Codes
- Press -> key.
Indicated on display:
Rapid data transfer HELP
Select function XX
- After the HELP key is pressed, a list of the possible functions is printed out.