Speedometer/Speed Sensor - Honda C8R600F4 Service Manual

LIGHTS/METERS/SWITCHES
SPEEDOMETER/SPEED SENSOR
SYSTEM INSPECTION
19-8
Check that the tachometer and coolant temperature
gauge function properly.
• If they do not function, perform the power/
ground line inspection of the combination meter
(see above).
• If they function, shift the transmission in neutral,
disconnect the combination meter connector
{page 19-6) and tur11 lht; iyr1iliu11 :;witch ON.
Measure the voltage between the Pink/green ( +)
and Green/black (-) wire terminals of the wire
harness side connector.
Slowly turn the rear wheel by hand.
There should be 0 V to 5 V pulse voltage.
If pulse voltage appears, replace the printed
circuit board.
- If pulse voltage does not appear, check for open
or short circuit in Pink/green wire.
If the Pink/green wire is OK, check the speed
sensor.
SPEED SENSOR INSPECTION
Raise the fuel tank (page 2-3).
Turn the ignition switch ON and measure the
voltage between the Black(+) and Green(-) wire
terminals of the speed sensor 3P connector with
the connector connected.
There should be battery voltage.
If there is no voltage, check for open circuit in
related wires.
Shift the transmission in neutral and turn the
ignition switch ON.
Measure the voltage between the Pink ( +) and
Green (-) wire terminal of the sensor connector
with the connector connected.
Slowly turn the rear wheel by hand.
There should be 0 to 5 V pulse voltage.
SPEED SENSOR 3P CONNECTOR