Honda SH125 Manual page 145

COOLING SYSTEM
SYSTEM INSPECTION
Fan motor does not stop
Check the fan motor relay (page 6-13)
If the relay is faulty, replace the fan motor relay.
If the relay function is normal, check as follows.
Remove the luggage box (page 2-5).
Install the fan motor relay.
Disconnect the engine control module (ECM) 32P
connector.
Turn the ignition switch to
O N
and check the fan
motor.
If the fan motor does not stop, check for a short
circuit in the BlacUblue wire between the fan
motor relay and ECM.
If the fan motor stops, replace the throttle body/
ECM assembly.
Fan motor does not start
Before testing, check for a blown fan motor fuse.
1. Check the fan motor relay (page 6-13).
If the relay is faulty, replace the fan motor relay.
If the relay function is normal, check as follows.
2. Measure the voltage between each Blue
(+)
wire
terminal of the relay connector and ground (-).
There should be battery voltage with the ignition
switch turned to
ON.
If there is no voltage, check for an open circuit in
the Blue wires.
If there is battery voltage, check as follows.
3. Remove the front upper cover (page 2-8).
Remove the front lower cover right side fasten-
ers (page 2-9).
Disconnect the fan motor 2P (white) connector.
FAN MOTOR RELAY CONNECTOR:
R I i i n
I i I