Subaru Legacy 2004 Service Manual page 2607

AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Excessive shift shock on 4th of "D" range % 5th of "D" range or
"4th of manual mode" % "5th of manual mode".
Excessive shock at kick down.
Excessive shock at shift up.
Excessive shock at lock up.
Excessive shock at engine brake.
Judder is occurred at lock up.
Noise at "R", "N" and "D" range.
Hold at "D" range or 1st on manual mode.
General Diagnostic Table
Symptom
5AT(diag)-148
Problem parts
• Accelerator pedal position sensor
• Throttle position sensor
• Control cable adjustment
• Oil pressure switch 1 and Front brake solenoid valve
• CAN communication signal
• Engine speed signal
• Turbine speed sensor
• Vehicle speed sensor 1 and Vehicle speed sensor 2
• Fluid level and condition
• Accelerator pedal position sensor
• Throttle position sensor
• Control cable adjustment
• CAN communication signal
• Engine speed signal
• Turbine speed sensor
• Vehicle speed sensor 1 and Vehicle speed sensor 2
• Fluid level and condition
• Accelerator pedal position sensor
• Throttle position sensor
• Control cable adjustment
• Engine speed signal
• CAN communication signal
• Turbine speed sensor
• Vehicle speed sensor 1 and Vehicle speed sensor 2
• Fluid level and condition
• Accelerator pedal position sensor
• Throttle position sensor
• Control cable adjustment
• Engine speed signal
• CAN communication signal
• Turbine speed sensor
• Lock up solenoid valve
• Vehicle speed sensor 1 and Vehicle speed sensor 2
• Fluid level and condition
• Accelerator pedal position sensor
• Throttle position sensor
• Control cable adjustment
• CAN communication signal
• Fluid level and condition
• Line pressure
• Low coast brake solenoid valve
• Fluid level and condition
• Engine speed signal
• Turbine speed sensor
• Vehicle speed sensor 1 and Vehicle speed sensor 2
• Accelerator pedal position sensor
• Throttle position sensor
• Lock up solenoid valve
• ATF temperature sensor 1 and 2
• Fluid level and condition
• Engine speed signal
• ATF temperature sensor 1 and 2
• Fluid level and condition
• Vehicle speed sensor 1 and Vehicle speed sensor 2
• Direct clutch solenoid valve
• Line pressure
• Up switch signal
• CAN communication signal
• Accelerator pedal position sensor