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:

Ignition System
WARNINGThe ignition system produces extremely high voltage. Do not touch the spark plug, ignition coil or ignition coil lead while the engine is running, or you could receive a severe electrical shock. NOTICE Do not disconnect the battery cables or any other electrical ...

Special Tools
Inside Circlip Pliers: 57001-143 Oil Seal & Bearing Remover: 57001-1058 Bearing Driver Set: 57001-1129 Jack: 57001-1238 Bearing Remover Head, 15 × 17: 57001-1267 Fork Oil Level Gauge: 57001-1290 Bearing Remover Shaft, 13: 57001-1377 Fork Oil Seal Driver, 43: 57001-15 ...

Oil Level Inspection
If the oil has just been changed, start the engine and run it for severalminutes at idle speed. This fills the oil filter with oil. Stop the engine, then wait several minutes until the oil settles. NOTICE Racing the engine before the oil reaches every part can cause engine seizure. ...