Read Measuring Value Block (Function 08)
NOTE:
The measuring value block is divided into 6 display groups, each containing 4 display fields. Use this function to observe various instrument cluster inputs.
- Connect scan tool. See Figure .
- Switch ignition on.
- Select operating mode 1 "Rapid data transfer.
- Input address word 17 "Instrument cluster" and then press button until "Select function XX" is shown in display.
- Press buttons "0" and "8" to select function 08 "Read Measuring Value Block." 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 Q
- Enter display group number XXX
- Using the scan tool button pad, enter the required display group number (following example shows display group 001). Press "Q" button to confirm input.Indicated on display:
- Read Measuring Value Block 1
- 1 2 3 4
- With the printer switched on, the information on the display is printed out. To change between display groups, proceed as in Fig 1 .
- Displayed after pressing C button. Indicated on display:
- Read Measuring Value Block Q
- Enter display group number XXX
- Enter alternate display group number as needed. See Fig 2 -Fig 13 .
NOTE:
Display fields always show actual values transmitted from senders and sensors. However, instrument cluster display values can differ from those in the display fields due to internal filtering.
NOTE:
Other display groups are possible, but are not required for On Board Diagnostic program.
NOTE:
Display fields in display groups 125 to 127 provides the CAN-Bus function status codes of various control modules connected to the vehicle CAN-Bus network. Data in display groups 126 and 127 are read using function 08 "read measuring value block" of the Data Bus On Board Diagnostic Interface.