Measured Value Block, Reading

Additional information
- Electrical Wiring Diagrams.
- Connect VAG 1551 Scan Tool and enter address word "02 Transmission electronics". Advance until "Select function XX" is indicated on display. Connecting Scan Tool VAG 1551 and Selecting Functions

Indicated on display


Rapid data transfer HELP
Select function XX


- Press buttons -0- and -8- to select "Read measured value block" function 08.

Indicated on display


Rapid data transfer Q
08 - Read measured value block


- Confirm entry with -Q- button.

Indicated on display


Read measured value block
Enter display group number XXX


- Enter display group number See List of selectable display group numbers. List of Selectable Functions

- Confirm entry with -Q- button.

There are always 4 display fields in the measured value block (in actual physical quantities if necessary). Decoding the individual values in display fields 1 to 4 See Test table. Measured Value Block, Reading


Read measured value block 1 ->
->1 ->2 ->3 ->







List of selectable display group numbers







NOTE:
- If the printer is switched on, the current display is printed out.
- If the specified values are reached in all the display fields:


- Press -> key.

Indicated on display


Rapid data transfer HELP
Select function XX

TEST TABLES





































Reading measured value block; Display group number 004; Checking solenoid valves while driving

NOTE:
- The solenoid valves can be checked while driving via "Read measured value block 08"; display group number 004.
- The table shows the solenoid valves -N88-, -N89- and -N90- (displays 1 to 3) as activated in each selector lever position. These solenoid valves control the shift valves for the relevant gears.
- The solenoid valve -N91- activates the lock-up clutch modulation valve and is not covered here.
- The solenoid valves -N92- and -N94- are supplementary valves which affect gear shifts. These are only controlled during gear shifts and displayed in fields 5 and 6. They can show "0" or "1" depending on the driving situation.
- At the start of a test drive the selector lever can be in position "1". During the drive it can be shifted progressively up to position "D".
- The mechanical gear "M" is not always engaged. The control module can engage this gear dependent upon the driving situation. The lock-up clutch can be checked in display group number 005.
- VAG 1551 display field 1 has 6 characters (0000 00) and is read as follows:





- Non-activated solenoid valves display "0" and activated solenoid valves display "1".
- All solenoid valves are checked via On Board Diagnostic (OBD) See Checking DTC memory. Diagnostic Trouble Code Memory, Checking

Checking solenoid valves while driving