24-170
"Voltage supply open circuit,"
followup procedure
All values learned by the Motronic
Engine Control Module (ECM) -
J220- and the basic setting values
as well as the readiness code will be
erased if the voltage supply is
interrupted. Therefore, depending
upon the vehicle mileage it can lead
to serious engine running problems.
Special tools and equipment
Note:
All functions which could previously
be performed with VAG 1551/1552
can also be performed with the VAS
5051.
VAG 1551 Scan tool (or VAG
1552) with VAG 1551/3 adapter
cable
Motronic Engine Control Module (ECM) -J220-