To Extract DTCs:
1. Warm engine to operating temperature and turn ignition "OFF."
2. Install jumper wire between TEN and GND terminals of data link connector.
3. Turn the ignition switch to the ON position.
4. If MIL illuminates for 3 seconds, goes off, and stays off, no codes are present.
5. If MIL illuminates, then starts flashing, record codes.
6. When all codes have been recorded, remove jumper wire.
Data Link Connector
*** scaned from the original factory workshop manual for the BA series Mazda 323/Astina from 06/1994, Australia, general L.H.D R.H.D (non USA models) :
* * * B6/BP engine * * *
* * * KF engine * * *
* * * Z5 engine * * *
cheers!
Georgi