Daihatsu F300 Service Manual page 1100

APPENDIX
•
VOLTAGES AT ECU CONNECTORS
Terminals STD voltage or resistance Condition Remedies
Check
(j)-@
About battery voltage Ignition switch ON powe'
supply.
Check
®-®
About
battery voltage At all time
power
supply.
Check
®-@
About battery voltage Ignition switch ON When engine is stopped:
powe'
supply.
Check
®-®
4.5-5.5
v
Ignition switch ON
power
supply.
•
3.2-4.0
v
Ignition switch ON When atmospheric pressure
of
Check
@-@
101.3 kPa (760 mmHg) exists .
pressure
sensor.
(j)-@
0.4-0.65
v
Ignition switch ON
When cooling water temperature is
Check
80°C: water
temperature
(j)-@
0.322±0.1
w
When cooling water temperature is BQ<'C
sensor.
Ignition switch ON Measured voltage changes when
Check
®-®
0 - About battery voltage
'peed
vehicle is moved 1.5 m.
sensor.
Less than 5.0 V Ignition switch ON
When defogger and headlarnp
®-®
switches are turned OFF:
Check TSC
About battery voltage Ignition switch ON When defogger andlor headlamp
vsv.
switches are turned ON:
About battery vottage
Ignition switch ON When test terminal of check
connector is not connected with
ground terminal:
Check
@-@
Twterminal
Less than
1.0
V Ignition switch ON When test tenninal of check
w1nng.
connector is connected with ground
terminal:
•
@-®
Less
than 5.0 V
Ignition
sw~ch
ON Throttle valve fully closed
Check
About battery voltage Ignition
sw~ch
ON Throttle valve fully opened
throttle
position
@-@
Less than 29
.n
ThrotHe valve fully closed
system.
More than 1000
.n
Throttle valve fully opened
OV
Ignition switch ON Check
@-®
power
More than 6 V When ignition switch is set to ST position: supply.
Measured voltage After warming up engine completely, connect test terminal
Check fuel
®-®
changes at a point of check connector with ground terminal. Hold engine
system.
between
0
w
5.0
V. revolution speed
at
3000
rpm
for two minutes.
Less than
3.0
V
Ignition switch ON
.
Engine is stopped.
.
When check engine lamp is
Check
illuminated:
power
®-®
supply for
About battery voltage Ignition switch ON
.
After engine starts: engine
.
When check engine lamp is
lamp.
extinguished:
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•
A-37~