Subaru Legacy 2002 Service Manual page 2458

14. General Diagnostics Table
A: INSPECTION
Vehicle instability during braking
Poor braking
Vibration and/or noise
(while driving on slippery roads)
GENERAL DIAGNOSTICS TABLE
S006121A10
Symptom
Vehicle pulls to either side.
Vehicle spins.
Long braking/stopping distance
Wheel locks.
Brake dragging
Long brake pedal stroke
Vehicle pitching
Unstable or uneven braking
Excessive pedal vibration
Noise from ABSCM&H/U
Noise from front of vehicle
Noise from rear of vehicle
S006121
¼ ABSCM&H/U (solenoid valve)
¼ ABS sensor
¼ Brake (caliper & piston, pads)
¼ Wheel alignment
¼ Tire specifications, tire wear and air pressures
¼ Incorrect wiring or piping connections
¼ Road surface (uneven, camber)
¼ ABSCM&H/U (solenoid valve)
¼ ABS sensor
¼ Brake (pads)
¼ Tire specifications, tire wear and air pressures
¼ Incorrect wiring or piping connections
¼ ABSCM&H/U (solenoid valve)
¼ Brake (pads)
¼ Air in brake line
¼ Tire specifications, tire wear and air pressures
¼ Incorrect wiring or piping connections
¼ ABSCM&H/U (solenoid valve, motor)
¼ ABS sensor
¼ Incorrect wiring or piping connections
¼ ABSCM&H/U (solenoid valve)
¼ ABS sensor
¼ Master cylinder
¼ Brake (caliper & piston)
¼ Parking brake
¼ Axle & wheels
¼ Brake pedal play
¼ Air in brake line
¼ Brake pedal play
¼ Suspension play or fatigue (reduced damping)
¼ Incorrect wiring or piping connections
¼ Road surface (uneven)
¼ ABSCM&H/U (solenoid valve)
¼ ABS sensor
¼ Brake (caliper & piston, pads)
¼ Tire specifications, tire wear and air pressures
¼ Incorrect wiring or piping connections
¼ Road surface (uneven)
¼ Incorrect wiring or piping connections
¼ Road surface (uneven)
¼ ABSCM&H/U (mount bushing)
¼ ABS sensor
¼ Brake piping
¼ ABSCM&H/U (mount bushing)
¼ ABS sensor
¼ Master cylinder
¼ Brake (caliper & piston, pads, rotor)
¼ Brake piping
¼ Brake booster & check valve
¼ Suspension play or fatigue
¼ ABS sensor
¼ Brake (caliper & piston, pads, rotor)
¼ Parking brake
¼ Brake piping
¼ Suspension play or fatigue
ABS-157
ABS (Diagnostics)
Probable faulty units/parts