Measuring Value Blocks (Function 08)

Read Measuring Value Block (function 08)

Use this function to determine immobilizer system status.

- Connect VAG 1551 Scan Tool, select operating mode 1 "Rapid data transfer", switch on ignition and enter address word 17, "Instrument cluster".
- Press -Q- button to confirm input.
- Press -> button until "Select function" appears in display.

Indicated on display:


Rapid data transfer HELP
Select function XX


- 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
Input display group number XX


Selectable display group numbers, overview

Indicated on display: (1 to 4 = display fields)


Read Measuring Value Block XXX ->
1 2 3 4


Display group Designations

022 1 = Start procedure permitted
2 = Engine Control Module (ECM) responding
3 = Key condition OK
4 = Number of adapted keys

023 1 = Variable code authorized
2 = Key (transponder) status
3 = Fixed code authorized
4 = Immobilizer status

025 1 = CAN Bus communication (with ECM)


NOTE:
- Measuring value block always indicates condition of immobilizer that was valid after ignition was switched on.
- A change in this condition due to electrical malfunctions that occurred since ignition was switched on again and the function "Read measuring value block" is called up again.
- Interpreting measured values in individual display fields.
- When printer is switched on, the actual display is printed out.
- Press -> button if measured value specification are met in all display fields.


Measuring values, interpreting

Display group 022

- Press buttons -0- once and -2- twice to enter display group number 022.
- Press -Q- button to confirm input.

- Indicated on display (example only)


Read Measuring Value Block 22 ->
1 1 1 3

Display Group 022:

Display group 023

- Press buttons -0-, -2- and -3- to enter display group number 023.
- Press -Q- button to confirm input.

- Indicated on display (example only)


Read Measuring Value Block 23 ->
1 1 1 6

Display Group 023:

Display group 025

- Press buttons -0-, -2- and -5- to enter display group number 025.

Indicated on display (example only):


Read measuring value block 25 ->
1







- Press -> button to end "Read measuring value block" function.