Mazda 1990 323 Workshop Manual Supplement page 257

TROUBLESHOOTING GUIDE
K2
iTEF
8
-
9
-
IO
11
-
INSPECTION
Check if resistance of solenoid valves is OK
w page K2-143
Resistance: 13-270
Disconnect 20-pin connector of EC-AT control
unit
Apply 12V to 2E and 2G terminals and check if
operation sound (clicking) of solenoid is heard
Check if time lag is within specified at idle
w page K2-122
Time lag
N -+ D: 0.5-1.0 second
N --t R: 0.6-1.0 second
Check if engine stall speed is OK
CT page K2-119
Engine stall speed: 2,550-2,650 rpm
Yes
No
Yes
No
Yes
No
Yes
No
ACTION
Check for poor connection at
connectors
+ If OK, go to next step
c3 If not OK, repair wiring
Replace solenoid valve
Try known good EC-AT control unit and
go to next step
Replace, solenoid valve
Go to next step
Check for cause (Refer to Evaluation)
u page K2-122
Go to next step
Check for cause (Refer to Evaluation)
a page K2-121
K2-81