BF40AoBF50A
2.
POWER
COIL
Disconnect the
2P
power coil connector, and measure
the resistance between the terminals.
I
Standard resistance
I
7.02
-
8.58
R
:
See page
6-1
for the power coil replacement.
3.
ECT (Engine Coolant Temperature) SENSOR
The sensor resistance decreases as the coolant tem-
perature increases as shown on the right table.
1)
Disconnect the
2P
connector from the thermo sensor
and measure the resistance between the sensor ter-
minals at the room temperature.
Standard
resistance:
1
-
5
k!2
2)
Connect the
2P
connector and start the engine and
warm up the engine to normal operating temperature.
3) Stop the engine, and disconnect the
2P
connector
and measure the resistance.
Standard
resistance:
200
-
400
R
ECT sensor installation/removal is almost the
same as installation/removal
of
the sermo switch.
(See page
8-2
of the Base Manual.)
PI
POWER COIL
WIRE
kR
100
10
W
0
z
31
;
W
U
-
E
0.1
0.01
-
-50 0
50
1
111
\
ECT SENSOR
1
I
I
I
I
-60
0
100
200 300°F
[2]
TEMPERATURE
1613
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