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3-58 FUEL SYSTEM (DFI)
Vehicle-down Sensor (Service Code 31)
Removal
CAUTION
Never drop the down-sensor, especially on a hard
surface. Such a shock to the sensor can damage it.
•
Remove:
Connection and Vehicle-down Sensor [A]
Bolts [B]
Installation
•
The UP mark [A] of the sensor should face upward.
Torque - Vehicle-down Sensor Bolts: 2.0 N·m (0.20 kgf·m,
17 in·lb)
WARNING
Incorrect installation of the vehicle-down sensor
could cause sudden loss of engine power. The
rider could lose balance during certain riding situ-
ations like leaning over in a t urn with the potential
for an accident resulting in injury or death. Ensure
that the down sensor is held in place by the sensor
brackets.
Inspection
NOTE
○
Be sure the battery is fully charged.
•
Connect a digital volt meter [A] to the connector of the
vehicle-down sensor [B] with the needle adapter set [C].
Vehicle-down Sensor Power Source Voltage
Connections to Sensor
Meter (+) → W/Y lead [D]
Meter (–) → BK/Y lead [E]
•
Turn the ignition switch ON, and measure the power
source voltage with the connector joined.
Power Source Voltage a t Sensor
Standard: Battery Voltage (12.6 V or more)
•
Turn the ignition switch OFF.
If there is no battery voltage, check the following:
Battery (see Electrical System chapter)
ECUMainFuse15A
Wiring for Vehicle-down Sensor Power Source (see next
diagram)
If the power source is normal, check the output voltage.