Volkswagen Passat 1995 Official Factory Repair Manual page 1926

Multiport fuel injection and ignition system
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Basic Setting (function 04)
Note:
Only initiate "Basic Setting" function 04 when
the throttle valve control module -J338-, the
Engine Control Module (ECM) -J220- or the
engine has been replaced.
Initiating basic setting matches the ECM to the
throttle valve control module with the ignition
switched on.
If the basic setting is interrupted by the ECM, it
can be, that the throttle valve is not at the
mechanical idle stop due to contamination (e.g.
coking) or an incorrectly adjusted accelerator
cable. In this case the malfunction "Basic
setting not performed" will be stored in DTC
memory. Thoroughly clean the soiled area in
throttle valve control module. The next time the
ignition is switched on, basic setting will be
automatically performed again.
Special tools, testers and auxiliary items
VAG 1551/1552 scan tool with VAG 1551/3
adapter cable
Test conditions
No malfunctions stored in Diagnostic Trouble
Code (DTC) memory
checking DTC memory
Test sequence
- Connect VAG 1551/1552 scan tool and select
"Engine Electronics" address word 01
01-7 . When doing this ignition must be switched
on but engine not running.
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