Kawasaki Ninja Service Manual: Intake Air Pressure Sensor #1 Input Voltage Inspection

Kawasaki Ninja Service Manual / Self-Diagnosis System / Intake Air Pressure Sensor #1 (Service Code 12) / Intake Air Pressure Sensor #1 Input Voltage Inspection

NOTE

Be sure the battery is fully charged.

Turn the ignition switch to OFF.
Remove the air cleaner housing (see Air Cleaner Housing Removal in the Fuel System (DFI) chapter).
Disconnect the intake air pressure sensor #1 connector and connect the measuring adapter [A] between these connectors.

[B] Main Harness

[C] Intake Air Pressure Sensor #1

Special Tool - Measuring Adapter: 57001-1700

Intake Air Pressure Sensor #1 Input Voltage Inspection

Connect a digital meter [D] to the measuring adapter leads.

Intake Air Pressure Sensor #1 Input Voltage Inspection

Intake Air Pressure Sensor #1 Input Voltage Connections to Adapter: Digital Meter (+) → R (sensor BL) lead Digital Meter (–) → BK (sensor BR/BK) lead

Measure the intake voltage with the engine stopped and with the connector joined.
Turn the ignition switch to ON.

Input Voltage Standard: DC 4.75 ∼ 5.25 V

Turn the ignition switch to OFF.

If the reading is within the standard, check the output voltage (see Intake Air Pressure Sensor #1 Output Voltage Inspection).

If the reading is out of the standard, remove the ECU and check the wiring for continuity between main harness connectors.

Special Tool - Hand Tester: 57001-1394

Disconnect the ECU and sensor connectors.

Intake Air Pressure Sensor #1 Input Voltage Inspection

Wiring Continuity Inspection ECU Connector [A] ←→ Intake Air Pressure Sensor #1 Connector [B] BL lead (ECU terminal 9) [C] BR/BK lead (ECU terminal 13) [D]

If the wiring is good, check the ECU for its ground and power supply (see ECU Power Supply Inspection in the Fuel System (DFI) chapter).

If the ground and power supply are good, replace the ECU (see ECU Removal/Installation in the Fuel System (DFI) chapter).

Intake Air Pressure Sensor #1 Installation

NOTE The intake air pressure sensor #1 is the same part as the intake air pressure sensor #2. Installation is basically the reverse of removal. Position the intake air pressure sensor #1 [A] ...

Intake Air Pressure Sensor #1 Output Voltage Inspection

Measure the output voltage at the intake air pressure sensor #1 in the same way as input voltage inspection, note the following. Disconnect the intake air pressure sensor #1 connector and c ...

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