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3-64 FUEL SYSTEM (DFI)
Water Temperature Sensor (Service Code 14)
Removal/Installation
CAUTION
Never drop the sensor, especially on a hard surface.
Such a shock to the sensor can damage it.
•
Drain the coolant (see Coolant Change in the Periodic
Maintenance chapter).
•
Remove:
Air Cleaner Housing (see Air Cleaner Housing Removal)
Throttle Body Assy (see Throttle Body Assy Removal)
Connector [A]
Water Temperature S ensor [B]
•
Apply silicone sealant to the threads of the water temper-
ature sensor and tighten it.
Sealant - Kawasaki Bond (Silicone Sealant): 92104-0004
Torque - Water Temperature Sensor: 25 N·m (2.5 kgf·m, 18
ft·lb)
•
Fill the engine with coolant and bleed the air from the
cooling system (see Coolant Filling in the Cooling System
chapter).
Output Voltage Inspection
NOTE
○
Be sure the battery is fully charged.
•
Remove the ECU (see ECU Removal).
○
Do not disconnect the ECU connectors.
•
Connect a digital meter [A] to the ECU connectors [B],
with the needle adapter set.
Special Tool - Needle Adapter Set: 57001-1457
Water Temperature Sensor Output Voltage
Connections to ECU
Meter (+) → O lead (terminal 25)
Meter (–) → BR/BK lead (terminal 34)
•
Measure the sensor output voltage with the engine
stopped and the connector joined.
•
Turn the ignition switch ON.
Output Voltage at ECU
Standard: About 2.80 ∼ 2.97 V at 20°C (68°F)
NOTE
○
The output voltage changes according to the coolant
temperature in the engine.
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