Volkswagen Passat 1995 Official Factory Repair Manual page 3237

Teves 20 GI ABS and ABS/EDL On Board Diagnostic (OBD)
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Teves 20 GI ABS and
ABS/EDL On Board
Diagnostic (OBD)
Test requirements
Tires mounted to all four wheels must be of
the same (approved) size, inflated to correct
pressure
Conventional brake system OK, including
brake light switch and brake lights
Brake hydraulic lines and connections not
leaking (visual check of ABS hydraulic unit,
brake calipers, wheel cylinders, tandem
master brake cylinder)
Wheel bearings and wheel bearing play OK
ABS control module correctly bolted to ABS
hydraulic unit.
Connector on ABS control module -J104-
correctly attached (retainer is engaged)
Check terminals and sockets on ABS or
ABS/EDL components for damage and
correct seating.
All fuses according to wiring diagram OK
(remove fuse from fuse holder to check).
Supply voltage OK (at least 10.0 V).
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12/7/2004