Volkswagen Passat 1995 Official Factory Repair Manual page 863

Motronic fuel injection system, servicing
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW...
If the displayed value fluctuates or the
battery voltage is not attained:
- Switch ignition off.
- Connect VAG 1598/18 test box to
ECM wiring harness.
- Switch ignition on.
- Bridge sockets 1 and 9 with adapter
cables from VW 1594 connector test
kit.
- Check voltage with multimeter
between test box sockets 1 and 23
using adapter cables from VW 1594
test kit.
Specification: Min. 9 volts
If the specifications are not attained:
- Replace power supply relay J363.
Checking battery positive voltage
(B+) supply (terminal 30)
- Check voltage with multimeter
between test box sockets 1 and 54
using adapter cables from VW 1594
test kit.
Specification: Min. 9 volts
If the specification is not attained:
- Check wiring according to wiring
diagram.
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