Daihatsu F300 Service Manual page 1410

EFISYSTEM
No.
Terminals Trouble
Conditions STD
voltage
When engine speed is Voltage changes
5
@-®
No voltage changes Ignition switch ON
held at 3000
rpm
for two more than 8
minutes after engine has times within 10
been fully warmed up:
seconds.
ECU
Oxygen sensor
@
~
.r-®
'---
If the SST (09842-87204-000) has not been 1nstalled yet, mstall the SST, refernng to the sectiOn under
~Preparation of Trouble-shooting" at page EF-32.
There is no change in voltage between SST terminals @ and @
when engine speed is held at 3000 rpm for two minutes
after engine has been fully warmed up:
Check wiring between ECU and oxygen sensor.
OK
BAD
BAD
Check oxygen sensor. (See page EF-68.)
OK
EF-42
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