Kawasaki VULCAN 1600 CLASSIC (2003) [110/575] Water temperature sensor resistance

3-52 FUEL SYSTEM (DFI)

Water Temperature Sensor (Service Code 14)

Water Temperature Sensor Resistance Inspection

•

Remove the water temperature sensor (see this section).

•

Suspend the sensor [A] in a container of machine oil so

that the heat-sensitive portion and threaded portion are

submerged.

•

Suspend a thermom eter [B] with the heat-sensitive por-

tion [C] located in almost the same depth with the sensor.

NOTE

○

The sensor and thermometer must not touch the con-

tainer side or bottom.

•

Place the container over a source of heat and gradually

raise the temperature of the oil w hile stirring the oil gently

for even temperature.

•

Using a digital meter, measure the internal resistance

of the sensor across the terminals at the temperatures

shown in the table.

Water Temperature Sensor Resistance

Standard: 2.162 ∼ 3.112 kΩ at 20°C (68°F)

0.785 ∼ 1.049 kΩ at 50°C (122°F)

0.207 ∼ 0.253 kΩ at 100°C (212°F)

If the measurement is out of the range, replace t he sensor.

If the measurement is within the specified, check the ECU

for its ground and power supply (see ECU section i n t his

chapter).

•

Clean off machine oil that inadvertently gets on the sen-

sor, especially on the terminals with a high-flush point sol-

vent.

A. ECU Z. Water Temperature Sensor