2005 Kawasaki STx-12F Jet Ski Factory Service Manual., Page 361Get this manual
ELECTRICAL SYSTEM 14-49 Kawasaki Smart Steering System
Steering Position Sensor Input Voltage Inspection NOTE
Measure the input voltage to the steering position sensorBe sure the battery is fully chargedConnect digital voltmeter [A] to the lead connector [B]
of the steering position sensor using the needle adapter set [C]Special ToolNeedle Adapter Set: 57001-1457 to to Meter (+) RW Terminal Meter () BK Terminal