wheel AUDI A4 1999 B5 / 1.G APB Engine Ignition System Checking

28-50
If all the test results so far have been OK but a
malfunction related to the camshaft position
sensor (Hall sensor) is displayed again after
erasing the DTC memory as a test measure, the
following might be the cause:

- Rotor ring (trigger wheel) for camshaft position
sensor (Hall sensor) misaligned; test phase
position.

Checking phase position of Hall sensor

- Connect vehicle diagnostic, testing and
information system VAS5051 or VAG1551 scan
tool and select engine electronics control
module by entering address word "01" Page
01
-9 . When doing this the engine must be
idling.
Rapid data transfer
HELP
Select function XX

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

Indicated on display:
- Press buttons -0-, -9- and -3- to select "Display Group 093" and
confirm entry with -Q- button.
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
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