Subaru 2002 IMPREZA Service Manual page 1550

AUTOMATIC TRANSMISSION
3. EVALUATION
Stall speed (at sea level)
Less than specifications
Greater than specifications
STALL TEST
Position
• Throttle valve not fully open
2,
• Erroneous engine operation
R
• Torque converter clutch's one-way clutch slipping
• Line pressure too low
D • Low clutch slipping
• One-way clutch malfunctioning
• Line pressure too low
R • Reverse clutch slipping
• Low & reverse brake slipping
• Line pressure too low
2 • Low clutch slipping
• 2-4 brake slipping
AT-14
Cause