ELE. - 51
COOLING FAN
A
It is situated on the radiator body (1) Fig. A. The ECM enables
and disables the cooling fan according to a signal received by
the coolant temperature sensor.
When the coolant temperature reaches the upper-tier tempera-
ture, the cooling fans are activated via command.
When the coolant temperature lowers enough (lower-tier tem-
perature), the coolant fans are activated via command by the
ECM.
Check:
•
The load current of the fan motor by connecting an amme-
ter, as shown in Fig. B.
The voltmeter serves to check that the battery powers the 12
volt motor.
When the fan rotates at the highest speed, the ammeter must
show no more than 5 Amps.
If the motor does not rotate, replace the motor unit of the fan.
NOTE:________________________________
It is not necessary to remove the cooling fan from the radia-
tor to carry out the above test.
A
Motorino
Ventola
Amperometro
B
1
ACTUATORS
COPY - Moto GB - Grant Martland - [email protected]
Содержание TRK 502
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