Kawasaki Ninja Service Manual: Subthrottle Sensor Output Voltage Inspection

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

Disconnect the subthrottle sensor connector and connect the setting adapter [A] between these connectors.

Subthrottle Sensor Output Voltage Inspection


Special Tool - Throttle Sensor Setting Adapter: 57001 -1538

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

Subthrottle Sensor Output Voltage Inspection


Output Voltage Standard: DC 0.8 1.0 V at
subthrottle valve full close position (for reference) DC 4.28 4.32 V at subthrottle valve
full open position

NOTE

If the reading is out of the standard, check the subthrottle sensor resistance (see Subthrottle Sensor Resistance Inspection).

If the reading is within 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.

Wiring Continuity Inspection ECU Connector [A] ←→ Subthrottle Sensor Connector [B] BL/W lead (ECU terminal 12) [C] BR/BK lead (ECU terminal 13) [D]

Subthrottle Sensor Output 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).

Subthrottle Sensor 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 ...

Subthrottle Sensor Resistance Inspection
Turn the ignition switch to OFF. Disconnect the subthrottle sensor connector. Connect a digital meter [A] to the subthrottle sensor connector [B]. Measure the subthrottle sensor resistance. ...

Other materials:

Radiator Inspection
Remove the radiator (see Radiator and Radiator Fan Removal). Check the radiator core. If there are obstructions to air flow, remove them. If the corrugated fins [A] are deformed, carefully straighten them. If the air passages of the radiator core are blocked more than 20% by unremovable ...

Air Cleaner Element Replacement
NOTE In dusty areas, the element should be replaced more frequently than the recommended interval. WARNINGIf dirt or dust is allowed to pass through into the throttle body assy, the throttle may become stuck, possibly causing accident. Replace the air cleaner element according ...

Cylinder Head Warp Inspection
Clean the cylinder head. Lay a straightedge across the lower surface of the cylinder head at several positions. Use a thickness gauge [A] to measure the space between the straightedge [B] and the head. Cylinder Head Warp Standard: – – – Service Limit: 0.05 mm (0.0020 in.) ...