ignition AUDI A4 1999 B5 / 1.G APB Engine Additional Signals Checking User Guide

24-211

- Connect one of the control modules.

- Connect VAG1551 scan tool. Switch ignition on
and erase the DTC memory of the control
module which has just been connected. End
output from scan tool with function 06 "End
Output."

- Switch ignition off and then on again.

- Leave ignition switched on for 10 seconds. Then
check DTC memory of the control module that
has just been connected, using the scan tool.

- If the malfunction "Data Bus Powertrain
Malfunction" is now indicated, replace the
control module which has just been connected.

- If malfunction "Data Bus Powertrain Malfunction"
is not indicated, connect next control module,
and repeat above procedure.
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11/22/2002 htt
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