Subaru IMPREZA 2002 Service Manual page 369

GENERAL DIAGNOSTICS TABLE
ABS (DIAGNOSTICS)
14.General Diagnostics Table
A: INSPECTION
Symptom
-~
dehicle instability during braking
Poor braking
Vehicle pulls to either side.
Vehicle spins.
Long brakinglstopping distance
Wheel locks.
Brake dragging
Long brake pedal stroke
Vehicle pitching
Unstable or uneven braking
Probable faulty units/parts
ABSCM&H/U (solenoid valve)
9
ABS sensor
Brake (caliper & piston, pads)
Wheel alignment
Tire specifications, tire wear and air pressures
Incorrect wiring or piping connections
Road surface (uneven, camber)
ABSCM&H/U (solenoid valve)
ABS sensor
Brake (pads)
Tire specifications, tire wear and air pressures
Incorrect wiring or Piping connections
~~
ABSCM&H/U (solenoid valve)
Brake (pads)
Air in brake line
Tire specifications, tire wear and air pressures
Incorrect wiring or piping connections
ABSCM&H/U (solenoid valve, motor)
ABS sensor
Incorrect wiring or piping connections
9
ABSCM&H/U (solenoid valve)
ABS sensor
Master cylinder
Brake (caliper & piston)
Parking brake
9
Axle & wheels
Brake pedal play
9
Air in brake line
Brake Pedal Play
*-Suspension play or fatigue (reduced damping)
Incorrect wiring or piping connections
* Road surface (uneven)
9
ABSCM&H/U (solenoid valve)
ABS sensor
9
Brake (caliper & piston, pads)
9
Tire specifications, tire wear and air pressures
9
Incorrect wiring or piping connections
Road surface (uneven)
ABS-I83