Mazda 1990 323 Workshop Manual Supplement page 220

K2
TROUBLESHOOTING GUIDE
w page K2-144
+ If OK, go to next step
4 If not OK, repair wiring
Check if resistance between 2J terminal and 2L
terminal of EC-AT control unit is OK
Resistance: 200--4OOQ
w page K2-142 tors and go to next step
minal of EC-AT co unit, and oscilloscope in-
put terminal to 2J terminal of EC-AT control unit
Check if pulse display is OK
Very low voltage:
Replace pulse generator
Noise in wave form:
Check for improper grounding of shield-
wiring or replace pulse generator
* Refer to 1990 323 Workshop Manual (1195-i O-89E).
K2-44