Troubleshooting With Sst - Mazda 626 1989 Workshop Manual

TROUBLESHOOTING WITH SST

When troubles occur in the main input devices or output devices, check for the cause with the SST
(Self>Diagnosis Checker 49 H018 9A1 or Digital Code Checker 49 G018 9A0 with Adaptor har­
ness 49 9200 180).
Failure of individual input and output devices is indicated and retrieved from the control unit as mal­
function code numbers.
Note
The control unit constantly checks for malfunction of the input devices. But, the control
unit checks for malfunction of output devices only in a 3 second period after the ignition
switch is turned ON and with the test connector grounded.
TROUBLESHOOTING WITH SST 4 B
Engine control unit
76F04B-005
4B-11