Kawasaki Ninja Service Manual: Vehicle-down Sensor Input Voltage Inspection

Kawasaki Ninja Service Manual / Self-Diagnosis System / Vehicle-down Sensor (Service Code 31) / Vehicle-down Sensor Input Voltage Inspection

NOTE

Be sure the battery is fully charged.

Turn the ignition switch to OFF.
Disconnect the vehicle-down sensor connector and connect the measuring adapter [A] between these connectors as shown in the figure.

Main Harness [B] Vehicle-down Sensor [C]

Special Tool - Measuring Adapter: 57001-1700

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

Vehicle-down Sensor Input Voltage Inspection

Vehicle-down Sensor Input Voltage Connections to Adapter: Digital Meter (+) → R (sensor BL) lead Digital Meter (–) → BK (sensor BR/BK) lead

Vehicle-down Sensor Input Voltage Inspection

Measure the input 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 Vehicle-down Sensor 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.

Wiring Continuity Inspection ECU Connector [A] ←→ Vehicle-down Sensor Connector [B] BL lead (ECU terminal 9) [C] BR/BK lead (ECU terminal 13) [D]

Vehicle-down Sensor Input Voltage Inspection

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).

Vehicle-down Sensor Installation

Be sure to install the rubber dampers [A] and collars [B] on the bracket. The UP mark [A] of the sensor should face upward. WARNINGIncorrect installation of the vehicle-down ...

Vehicle-down Sensor Output Voltage Inspection

Remove the vehicle-down sensor. Connect the measuring adapter [A] to the vehicle-down sensor connectors as shown in the figure. Special Tool - Measuring Adapter: 57001-1700 Main Harness [B] ...

Other materials:

Stick Coil Removal
Remove the air cleaner housing (see Air Cleaner Housing Removal in the Fuel System (DFI) chapter). Disconnect the stick coil connectors [A]. Pull out the stick coils [B] upward. First, turn the stick coil by 90 degrees, and then pull it out by twisting the coil head to the left and righ ...

Cylinder Head Cover Removal
Remove: Air Suction Valves (see Air Suction Valve Removal) Throttle Body Assy (see Throttle Body Assy Removal in the Fuel System (DFI) chapter) Stick Coils (see Stick Coil Removal in the Electrical System chapter) Remove the clamps [A]. Turn up the front side of the heat insulation ...

Fuel Tank Removal
WARNINGGasoline is extremely flammable and can be explosive under certain conditions, creating the potential for serious burns. Make sure the area is well-ventilated and free from any source of flame or sparks; this includes any appliance with a pilot light. Do not smoke. T ...