20 LT-R450/ZK9 (’09-MODEL)
COOLING FAN RELAY
ACTIVE CONTROL INSPECTION
1) Set up the SDS tool. (Refer to the SDS operation manual for
further details.)
2) Start the engine and run it idling condition.
3) Click “Cooling fan relay control” 1.
4) Click “Operate” 2.
At this time, if an operation sound is heard from the cooling
fan relay and cooling fan motor is operated, the function is
normal.
NOTE:
Cooling fan relay and cooling fan motor operation can be
checked until the engine coolant temperature is less than 90 °C
(194 °F) after starting the engine.
5) Click “Stop” 3 to check the operation properly.
SENSOR
IAP SENSOR INSPECTION
The intake air pressure sensor is installed at the top side of the
throttle body. (Page 12)
IAP SENSOR REMOVAL AND INSTALLATION
• Remove the fuel tank and fuel tank lower cover.
(LT-R450K8 5-4)
• Disconnect the IAP sensor coupler 1.
• Remove the plate 2, IAP sensor 3 and O-ring 4.
• Install the IAP sensor in the reverse order of removal.
Replace the O-ring 4 with a new one.
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