Mazda 1990 323 Workshop Manual Supplement page 265

TROUBLESHOOTING GUIDE
K2
w page K2-144
Voltage: Approx. 12V
Check if voltage at terminal 2K of EC-AT control
w page K2-144
Voltage: Approx. 12V
(Lockup solenoid ON [Lockup])
2Kand lJor2P (
ngine in P range and let it idle
Shift to 0 range and check if engine stalls
No
Replace lockup solenoid valve
K2-89