With Nippondenso Compressor
Read Measuring Value Block (VAG 1551 function 08)Automatic climate control
Notes:
There are 10 measuring value blocks, each with values shown in 4 display fields.
With VAG 1551 Scan Tool printer switched ON, display is automatically printed out.
- Before reading measuring value block, check Diagnostic Trouble Code (DTC) memory.
- Eliminate all malfunctions as necessary, then erase DTC memory. Keep engine running.
- Operate VAG 1551 Scan Tool, stepping through program sequence until display shows "AC/Heating Electronics" address word 08.
Indicated on display
Rapid data transfer HELP
Select function XX
Note:
Press HELP button to print out list of available functions.
- Press buttons -0- and -8- to select 'Read Measuring Value Block" function 08.
Indicated on display
Rapid data transfer Q
08 - Read Measuring Value Block
- Press -Q- button to confirm input.
Indicated on display
Read measuring value block HELP
Input display group number XXX
- Input display group number (e.g. -0-, -0- and -1- for display group 001), then press -Q- button to confirm input.
Indicated on display
Read measuring value block X
1 2 3 4
Note:
Display fields marked with an asterisk (*) indicate values when On Board Diagnostic (OBD) was initiated.
All display fields NOT marked with an asterisk (*) indicate current values.
During m.y. 1996, a Nippondenso A/C compressor was installed as a running change on vehicles with 6-cylinder engines. On this compressor the A/C compressor speed sensor -G111- has been ellminated. All display groups and display fields shown were are valid for both Zexel and Nippondenso compressors unless otherwise noted.
To select another display group:
- Press -C- button.
Indicated on display
Read measuring value block HELP
Input display group number XXX
- Input new display gmup number.
- Press -0- button to confirm input
To test electrical inputs
- Connect VAG 1598 test box to A/C control head connectors using VAG 1598/11 and VAG 1598/12 adapter cables.
- For test box socket identification when using VAG 1598/11 adapter cable, VAG 1598 Test Box, Connecting
