Operation CHARM: Car repair manuals for everyone.

Evaluating Measured Value Blocks




Test Table


Display Group 001 - Part 1:






Display Group 001 - Part 2:






Display Group 001 - Part 3:






Display Group 001 - Part 4:






Display Group 001 - Part 5:






Display Group 001 - Part 6:






Display Group 002 - Part 1:






Display Group 002 - Part 2:






Display Group 003 - Part 1:






Display Group 003 - Part 2:






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 (000000) 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) => Checking DTC memory, Page 01-34.


Checking solenoid valves while driving


Display Group 004 - Part 1:






Display Group 004 - Part 2:






Display Group 004 - Part 3:






Display Group 004 - Part 4:






Display Group 005 - Part 1:






Display Group 005 - Part 2:






Display Group 005 - Part 3:






Display Group 005 - Part 4:






Display Group 005 - Part 5:






Display Group 006:






Display Group 007 - Part 1:






Display Group 007 - Part 2:






Display Group 007 - Part 3:






Display Group 008: