Volkswagen Passat 1995 Official Factory Repair Manual page 3246

Teves 20 GI ABS and ABS/EDL On Board Diagnostic (OBD)
VAG 1551 Scan
Tool printout
00283
ABS Wheel Speed
Sensor,LF-G47
Mechanical
1)
malfunction
Signal outside
1)
tolerances
1)
Type of malfunction; this malfunction is only recognized above 20 km/h (12 mph); test drive.
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.OB01.01.8
Possible cause of malfunction
Open circuit, short circuit or loose
connection in:
ABS wheel speed sensor wire
Connector
ABS wheel speed sensor winding
Short circuit in ABS wheel speed
sensor
Excessive air gap between ABS
wheel speed sensor and impulse
rotor (signal not OK)
Impulse rotor and ABS wheel speed
sensor dirty or damaged
Repairing malfunction
- Check wiring, connectors, ABS wheel
speed sensor and Ground (GND) wiring
to ABS control module
Electrical test, page 01-129
6 and 10
- Check installation of ABS wheel speed
sensor and impulse rotor; clean if
necessary
Read measuring value block, function
08, page 01-107 , Display field 1
Page 10 of 40
01-98
Test steps
12/7/2004