Kawasaki Ninja Service Manual: Water Temperature Sensor Output Voltage Inspection

Kawasaki Ninja Service Manual / Self-Diagnosis System / Water Temperature Sensor (Service Code 14) / Water Temperature Sensor Output Voltage Inspection

NOTE

Be sure the battery is fully charged.

Special Tool - Measuring Adapter: 57001-1700

Water Temperature Sensor Output Voltage Inspection


Water Temperature Sensor Output Voltage Connections to Adapter: Digital Meter (+) → R (sensor O) lead Digital Meter (–) → BK (sensor BR/BK) lead

Special Tool - Measuring Adapter: 57001-1700


Output Voltage Standard: About DC 2.80 2.97 V at
20°C (68°F)

NOTE

The output voltage changes according to the coolant temperature in the engine.

If the reading is within the standard, check the ECU for its ground, and power supply (see ECU Power Supply Inspection in the Fuel System (DFI) chapter).

If the ground and power supply are good, replace the ECU (see ECU Removal/Installation in the Fuel System (DFI) chapter).

If the reading is out of the standard, remove the ECU and check the wiring for continuity between harness connectors.

Special Tool - Hand Tester: 57001-1394

Disconnect the ECU and sensor connectors.

Water Temperature Sensor Output Voltage Inspection


Wiring Continuity Inspection ECU Connector [A] ←→ Water Temperature Sensor Connector [B] O lead (ECU terminal 23) [C] BR/BK lead (ECU terminal 13) [D]

If the wiring is good, check the water temperature sensor resistance (see Water Temperature Sensor Resistance Inspection).

Water Temperature Sensor Removal/Installation
NOTICE Never drop the water temperature sensor especially on a hard surface. Such a shock to the sensor can damage it. Remove the throttle body assy (see Throttle Body Assy Removal in the ...

Water Temperature Sensor Resistance Inspection
Refer to the Water Temperature Sensor Inspection in the Electrical System chapter. If the reading is within the standard, but the problem still exists, replace the ECU (see ECU Removal/Instal ...

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