Skoda OCTAVIA MK1 Service Manual page 257

Test sequence
Connect vehicle system tester -V.A.G 1552- and select address word 01 "Engine
–
electronics". Engine idling.
Select 08 for the function "read measured value block" and further select display group
–
019.
Observe display value in the display field 4. (3rd position from
right).
Specified value: x x x x x 1 x x
Depress the clutch pedal and observe the display value in the
–
display field 4.
Specified value: x x x x x 0 x x
– End the test using the function 06 "End output".
If the specified value is not reached:
Connect the test box -V.A.G 1598/22 - to the wiring loom of the
–
engine control unit
Check wiring between the test box and the 2-pin plug for
–
continuity according to the current flow diagram.
Contact 2+bush 21
Cable resistance max. 1.5 Ω.
If the specified value is reached:
Check the cables between the 2-pin plug contact 1 and the fuse
– 34 for interruption according to the current flow diagram. Cable
resistance: max. 1.5 Ω
locations
→ Chapter.
→ Current flow diagrams and Fitting
257
Reading measured value
block 19
->
850/rpm 0
00000100
1