Volkswagen Golf 4 1998 Service Manual page 49

ABS ITT Mk 20 IE On Board Diagnostic (OBD) program
V.A.G 1551 Possible cause
print-out
00290
Left rear
Open circuit, short to positive or
ABS wheel
Ground, or loose contact in
speed
connections between left rear ABS
sensor -
wheel speed sensor -G46- and
G46-
ABS Control Module (w/EDL) -
J104-
Left rear ABS wheel speed sensor
windings -G46- faulty
Damaged rotor or left rear ABS
wheel speed sensor -G46-
ABS Control Module (w/EDL) -
J104- faulty
Repair
- Check wiring and connections using
wiring diagram
- Perform electrical checks
01-102
- Check left rear ABS wheel speed
sensor -G46- and rotor for damage
- Replace rotor/left rear ABS wheel
speed sensor -G46-
Repair Manual, Brake System,
Repair Group 45; Removing and
installing parts of ABS system on front
and rear axles
If the malfunction occurs again:
- Replace ABS Control Module
(w/EDL) -J104-
Repair Manual, Brake System,
Repair Group 45; Hydraulic unit, brake
booster/brake master cylinder -
Assembly overview; Removing and
installing control module and hydraulic
unit
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