Kawasaki STX-15F - Manual (Page 89)

FUEL SYSTEM (DFI) 3-35
Inlet Air Pressure Sensor (Service Code/Character-12/bOSt)
If the output voltage is far out of the usable range, check
the output voltage at the sensor connector [A].
•
Measure the output voltage at the sensor in the same way
as input voltage inspection. Note the following.
[B] Inlet Air Pressure Sensor
Special Tool - Sensor Harness Adapter: 57001-1561
Inlet Air Pressure Sensor Output Voltage
Connections to Sensor
Meter (+) → G/R lead [C]
Meter (–) → BK/W lead [D]
Output Voltage at Sensor Connector
Usable Range: 3.75 ∼ 4.25 V DC at the standard
atmospheric pressure (101.32 kPa or
76 cmHg absolute)
If the output voltage is normal, check the wiring for conti-
nuity (see next diagram).
If the output voltage is out of the usable range, replace
the sensor.
•
Turn the ignition switch OFF.
•
Remove the sensor harness adapter.
Output Voltage Performance
(at Input Voltage: 4.75 ∼ 5.25 V)
P: Vacuum Pressure
Vo: Output Voltage
1. ECU
2. Joint Connector E 3. Joint Connector H
4. Inlet Air Pressure Sensor