Mazda 1990 323 Workshop Manual Supplement page 197

TROUBLESHOOTING GUIDE
K2
If the 4 steps on page K2-16 are followed, the cause of the problem should be located.
Another guide to faster location of the causes of problems, the QUICK DIAGNOSIS CHART, is on pages
K2-17 through 19.
In this chart, numbers are used to indicate the components that may be the cause of 24 possible problems.
It is necessary to check only those components indicated by numbers during each step of the troubleshoot-
ing process to locate the cause of the problem quickly.
QUICK DIAGNOSIS CHART
The Quick Diagnosis Chart shows various problems and the relationship of various components that might
be the cause of the problem.
1. Components indicated in the "Self-Diag.
" column are diagnosed by the EC-AT control unit self-diagnosis
function.
The EC-AT Tester can be used for easy retrieval of these signals.
2. Components indicated in the "Adjustment" column indicate that there is a possibility that the problem
may be the result of an incorrect adjustment.
Check the adjustment of each component, and readjust if necessary.
3. Input and outout signals of the EC-AT control unit for the components indicated in the "EC-AT TESTER"
column can be easily checked by using of the EC-AT Tester.
4. Components indicated in the "Stall Test" column can be checked for malfunction by the results of the stall test.
5. Components indicated in the "Time Lag Test" column can be checked for malfunction by the results of
the time lag test.
6. Components indicated in the "Oil Pressure Test" column can be checked for malfunction by the results
of the oil pressure test.
7. Components indicated in the "Road Test" column can be checked for malfunction by the results of the
road test.
8. The checking, adjusting, repair or replacement procedures for each component is described in the page(s)
noted in the "Reference Page" column.
Inspection point and
reference page
Item
Self-diagnosis
Adjustment
EC-AT TESTER
Stall Test
Time Lag Test
Oil Pressure Test
Road Test
03UOKZ023
Prelimi
nary
Electronic control system
Hydraulic
control
1 system
Power train
l
Refer to 1990 323 Workshop Manual (1195-10.89E)
K2-21