people 250 s Workshop-manual : Page 235

          19. SWITCHES/HORN/FUEL UNIT/THERMOSTATIC SWITCH
    /TEMPERATURE GAUGE/INSTRUMENTS/LIGHTS                   PEOPLE/PEOPLE S 250



 THERMOSTATIC SWITCH
 INSPECTION
 Remove the front covers. ( 2-5)
 Start and run the engine to make the water
 temperature reaches 8590 and
 check if the cooling fan motor operates.
 Lower the water temperature to 85 and
 check if the fan motor stops.
 If the fan motor does not start, disconnect
 the wires from the thermostatic switch and
 then connect a jumper wire between the              Wire    Thermostatic Switch
 wire harness and thermosensor wires
 (black and green wires).

 Turn the ignition switch ON. The
 thermostatic switch is faulty if the cooling
 fan motor runs properly.
 If it does not start, check for voltage
 between the fan motor coupler wire
 terminals (blackgreen).
 If there is no voltage, check for the
 following:
 · Blown or faulty fuse
 · Loose terminals or connectors
 · Shorted wire in the wire harness

 TEMPERATURE METER
 Disconnect the wire from the thermosensor
 and ground it to the engine.
 Turn the ignition switch ON.
 The temperature gauge needle should
 move all the way to "H".
 Do not leave the thermosensor wire
    grounded for longer than 5 seconds or
    the temperature gauge will be damaged.

 HEATER CONTROLER UNIT INSPECTION
 1.Open ignition switch to check if the brown
   /blue wire of it is enough voltage.
 2.Put the heater controller unit in refrigerator.
   Start engine after keeping the temperature
   under 10  4.
 3.Check if the yellow wire of heater controller
   unit has output voltage.
 Start engine and if the temperature of heater
 controller unit is under 10  4. Check if the
 white/yellow wire of heater controller unit has
 output voltage. If it has not any voltage. It is
 damaged.


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