Subaru XT 1988 Service Manual page 932

4-3
Considerable effort is required to turn
steering wheel fully. particularly when
speed is below 10 km/h (6 MPH) epprox.
Faulty steering sensor line
Chack in self-check mode
STEERING SYSTEM
Considerable effort is required to turn
steering wheel when air conditioning
system in ON or when radiator sub-fan is
operating
NO
Measure steering effort
86
Faulty sub·fan control function
See 6·3 chapter.