Kawasaki Ninja Service Manual: Subthrottle Sensor Input Voltage Inspection

Kawasaki Ninja Service Manual / Self-Diagnosis System / Subthrottle Sensor (Service Code 32) / Subthrottle Sensor Input Voltage Inspection

NOTE

Be sure the battery is fully charged.

Special Tool - Throttle Sensor Setting Adapter: 57001 -1538

Subthrottle Sensor Input Voltage Inspection


Subthrottle Sensor Input Voltage Connections to Adapter: Digital Meter (+) → W (sensor BL) lead Digital Meter (–) → BK (sensor BR/BK) lead

Input Voltage Standard: DC 4.75 5.25 V


If the reading is within the standard, check the output voltage (see Subthrottle Sensor Output Voltage Inspection).

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

Special Tool - Hand Tester: 57001-1394

Disconnect the ECU and sensor connectors.

Subthrottle Sensor Input Voltage Inspection


Wiring Continuity Inspection ECU Connector [A] ←→ Subthrottle Sensor 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).

Subthrottle Sensor Removal/Adjustment
NOTICE Do not remove or adjust the subthrottle sensor [A] since it has been adjusted and set with precision at the factory. Never drop the throttle body assy especially on a hard surface. Such ...

Subthrottle Sensor Output Voltage Inspection
Measure the output voltage at the subthrottle sensor in the same way as input voltage inspection, note the following. Disconnect the subthrottle sensor connector and connect the setting adapt ...

Other materials:

Stick Coil Inspection
Remove the stick coils (see Stick Coil Removal). Measure the primary winding resistance [A] as follows. Connect the hand tester between the coil terminals. Set the tester to the × 1 Ω range, and read the tester. Measure the secondary winding resistance [B] as follows. Conn ...

Valve Installation
NOTICE Do not lap the valve to the valve seat, using the grinding compound. It will come off oxide film treated surface of the valve. Replace the oil seal with a new one. Apply a thin coat of molybdenum disulfide grease to the valve stem before valve installation. Install the springs so ...

Sprocket Wear Inspection
Visually inspect the engine and rear sprocket teeth for wear and damage. If the teeth are worn as illustrated, replace the sprocket, and inspect the drive chain wear (see Drive Chain Wear Inspection in the Periodic Maintenance chapter). Worn Tooth (Engine Sprocket) [A] Worn Tooth (Rear ...