Engine Coolant Temperature Indicator/Ect Sensor - Honda CBF600SA Service Manual

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys.
ENGINE COOLANT TEMPERATURE
INDICATOR/ECT SENSOR
SYSTEM INSPECTION
If the engine coolant temperature indicates too high
or too low temperature in spite of normal engine
coolant temperature, inspect the following.
Disconnect the ECT sensor 3P (Black) connector
from the sensor.
Ground the Green/blue wire terminal of the ECT
sensor 3P connector wire harness side with a
jumper wire.
Turn the ignition switch to "ON" and check the
engine coolant temperature indicators.
• If the engine coolant temperature indicators light
as over heat (shown in the right illustration),
inspect the ECT sensor (page 20-27).
• If the engine coolant temperature do not light,
check the following.
– Open circuit in the ECT sensor (Green/blue)
wire
– Faulty combination meter
ECT SENSOR INSPECTION
Remove the ECT sensor (page 5-94).
Suspend the ECT sensor in a pan of coolant (1:1
mixture) an electric heating element and measure
the resistance through the sensor as the coolant
heats up.
• Soak the ECT sensor in coolant up to its threads
with at least 40 mm (1.6 in) from the bottom of
the pan to the bottom of the sensor.
• Keep the temperature constant for 3 minutes
before testing. A sudden change of temperature
will result in incorrect readings. Do not let the
thermometer or ECT sensor touch the pan.
Replace the sensor if it is out of specification by
more than 10% at any temperature listed.
Temperature
Resistance
Install the ECT sensor (page 5-94).
email: info@motomatrix.co.uk
80°C (68°F) 120°C (248°F)
2.1 – 2.6 kΩ 0.65 – 0.73 kΩ
LIGHTS/METERS/SWITCHES
3P (Black) CONNECTOR
ENGINE COOLANT
TEMPERATURE INDICATOR
ECT SENSOR
ECT SENSOR TERMINAL
JUMPER WIRE
20-27