Volkswagen Passat 1995 Official Factory Repair Manual page 3249

Teves 20 GI ABS and ABS/EDL On Board Diagnostic (OBD)
VAG 1551 Scan
Tool printout
00290
ABS Wheel Speed
Sensor,LR-G46
Mechanical
1)
malfunction
Signal outside
1)
tolerances
00668
Battery Positive
Voltage (B+)
Term.30
01044
Control Module
incorrectly coded
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
Faulty voltage supply wires,
connections, fuses -S124-
An incorrect code number has been
entered via VAG 1551 scan tool
Open or short circuit in wiring
harness between terminals 15 and
terminal 21
Repairing malfunction
- Check wiring, connectors, ABS wheel
speed sensor and Ground (GND) wiring
to ABS control module
page 01-129 , Electrical test, Test steps
8 and 12
- Check installation of ABS wheel speed
sensor and impulse rotor; clean if
necessary
page 01-107 , Read measuring value
block, function 08, Display field 3
- Check fuses, wires, connections as well
as battery positive voltage (B+) supply to
ABS control module
page 01-129 , Electrical test, Test step
2
- Check ABS control module coding
page 01-105
- Check wiring in harness
page 01-129 , Electrical test, Test step
13
Page 13 of 40
01-101
12/7/2004