Kawasaki Ninja Service Manual: Crankshaft Sensor Peak Voltage Inspection

Kawasaki Ninja Service Manual / Self-Diagnosis System / Crankshaft Sensor (Service Code 21) / Crankshaft Sensor Peak Voltage 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

Crankshaft Sensor Peak Voltage Inspection


Disconnect the ECU and sensor connectors.

Wiring Continuity Inspection ECU Connector [A] ←→ Crankshaft Sensor Connector [B] BK lead (ECU terminal 8) [C] Y lead (ECU terminal 21) [D]

Crankshaft Sensor Circuit

Crankshaft Sensor Circuit


1. ECU

2. Crankshaft Sensor

Crankshaft Sensor Removal/Installation
Refer to the Crankshaft Sensor Removal/Installation in the Electrical System chapter. Crankshaft Sensor Resistance Inspection Refer to the Crankshaft Sensor Inspection in the Electrical ...

Rear Wheel Rotation Sensor Signal (Service Code 24)
Rear Wheel Rotation Sensor Signal Inspection The rear wheel rotation sensor sends the signal to the ECU through the KIBS hydraulic unit (KIBS equipped models). For other than KIBS equipped models, ...

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Crankshaft Sensor Peak Voltage Inspection
NOTE Be sure the battery is fully charged. Using the peak voltage adapter [A] is more reliable way to determine the condition of the crankshaft sensor than crankshaft sensor internal resistance measurements. Disconnect the crankshaft sensor lead connector (see Crankshaft Sensor ...

Valve-to-Guide Clearance Measurement (Wobble Method)
If a small bore gauge is not available, inspect the valve guide wear by measuring the valve to valve guide clearance with the wobble method as indicated below. Insert a new valve [A] into the guide [B] and set a dial gauge against the stem perpendicular to it as close as possible to the cy ...

Piston Ring End Gap Inspection
Place the piston ring [A] inside the cylinder (upper crankcase), using the piston to locate the ring squarely in place. Set it close to the bottom of the cylinder, where cylinder wear is low. Measure the gap [B] between the ends of the ring with a thickness gauge. Piston Ring End Gap ...