Volkswagen Passat 1995 Official Factory Repair Manual page 3261

Teves 20 GI ABS and ABS/EDL On Board Diagnostic (OBD)
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.OB01.01.8
Example:
Indicated on VAG 1551 scan tool display during
the output diagnostic test mode:
(Example: left-front wheel, FL)
Output diagnostic test mode -
IFL: VBAT OFL: 0V Wheel FL locked
IFL = Inlet valve Front Left
VBAT = Voltage BATtery; voltage at valve
OFL = Outlet valve Front Left
0V = 0 Volts; no voltage at valve
Locked/free = Wheel condition; must be checked
by second mechanic
Output diagnostic test mode -
EDL valves/Hyd-P: VBAT Wheel FL/FR locked
Hydr-P = Hydraulic Pump
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12/7/2004