3-58 FUEL SYSTEM (DFI)
Vehicle-down Sensor (Service Code 31)
Remove the sensor.
Connect a digital volt meter [A] to the connector with nee-
dle adapter set [B].
Special Tool - Needle Adapter Set: 57001-1457
Vehicle-down Sensor Output Voltage
Connections to Sensor
Meter (+) → Y/G lead [E]
Meter (–) → BR/BK lead [F]
Hold the sensor vertically.
Turn the ignition switch ON, and measure the output volt-
age with the connector joined.
Tilt the sensor 60 ∼ 70° or more [C] right or left, then hold
the sensor almost vertical with the arrow mark pointed up
[D], and measure the output voltage.
Output Voltage at Sensor
with sensor tilted 60 ∼ 70° or more right
or left: 0.65 ∼ 1.35 V
with sensor arrow mark pointed up:
3.55 ∼ 4.45 V
If you need to test again, turn the ignition switch OFF,
and then ON.
Turn the ignition switch OFF.
Remove the needle adapter set, and apply silicone
sealant to the seals of the connector for waterproofing.
Silicone Sealant (Kawasaki Bond: 56019-120) - Seals
of Vehicle-down Sensor Connector
If the output voltage is normal, the wiring is suspect.
Check the wiring.
If the wiring is good, check the ECU for its ground and
power supply (see ECU Power Supply Inspection).
If the output voltage is out of the specified, replace the