lock AUDI A4 1998 B5 / 1.G AHA Engine Camshaft Adjustment System Checking Workshop Manual

28-30

Camshaft adjustment function, checking


- Connect VAG1551/1552 Scan Tool (ST) and
press buttons -0- and -1- to insert "Engine
Electronics" address word 01 (engine running at
idle) page 01
-8 .
Rapid data transfer
HELP
Select function XX

Indicated on display
- Press buttons -0- and -8- to select "Read Measuring Value Block"
function 08, and press -Q- button to confirm input.
Read Measurin
g Value Block
HELP
Input displa
y group number XXX

Indicated on display
- Press buttons -0-, -9- and -0- to input display group number 90 (090),
and press -Q- button to confirm input.
Read Measuring Value Block 90 1 2 3 4

Indicated on display (1-4 display groups)
Notes:
Display field 2 indicates whether the engine control module has activated
the camshaft adjustment.
Display fields 3 and 4 show whether the camshaft adjustment did actually
occur (via input from sensors):
"CS-ctrlOFF:" camshaft adjustment is not active."CS-ctrlON:" camshaft adjustment is active (this can only be attained
during a test drive)
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