Kawasaki Ninja Service Manual: Subthrottle Valve Actuator Input Voltage Inspection

Kawasaki Ninja Service Manual / Self-Diagnosis System / Subthrottle Valve Actuator (Service Code 62) / Subthrottle Valve Actuator Input Voltage Inspection

NOTE

Be sure the battery is fully charged.

Subthrottle Valve Actuator Input Voltage Inspection

Turn the ignition switch to OFF.
Disconnect the subthrottle valve actuator connector and connect the measuring adapter [A] between these connectors as shown in the figure.

Main Harness [B] Subthrottle Valve Actuator [C]

Special Tool - Measuring Adapter: 57001-1700

Connect the peak voltage adapter [D] and a digital meter [E] to the measuring adapter leads.

Special Tool - Peak Voltage Adapter: 57001-1415 Type: KEK-54-9-B

Subthrottle Valve Actuator Input Voltage Inspection

Connect the peak voltage adapter [D] and a digital meter [E] to the measuring adapter leads

Special Tool - Peak Voltage Adapter: 57001-1415 Type: KEK-54-9-B

Subthrottle Valve Actuator Input Voltage Connections to Adapter:

(I) Digital Meter (+) → R (actuator BK/O) lead Digital Meter (–) → Battery (–) terminal (II) Digital Meter (+) → BK (actuator G) lead Digital Meter (–) → Battery (–) terminal (III) Digital Meter (+) → W (actuator P/BL) lead Digital Meter (–) → Battery (–) terminal (IV) Digital Meter (+) → Y (actuator Y/BK) lead Digital Meter (–) → Battery (–) terminal

Measure the actuator input voltage with the engine stopped and with the connector joined.
Turn the ignition switch to ON.

Input Voltage Standard: About DC 8.5 10.5 V and
then 0 V or About DC 8.5 10.5 V

Turn the ignition switch to OFF.

If the reading is in specification, but the actuator does not operate, replace the throttle body assy.

If the reading is out of the specification, remove the ECU and check the wiring for continuity between main harness connector.

Special Tool - Hand Tester: 57001-1394

Disconnect the ECU and actuator connectors.

Subthrottle Valve Actuator Input Voltage Inspection

Wiring Continuity Inspection ECU Connector [A] ←→ Subthrottle Valve Actuator Connector [B] G lead (ECU terminal 15) [C] BK/O lead (ECU terminal 2) [D] P/BL lead (ECU terminal 14) [E] Y/BK lead (ECU terminal 1) [F]

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 Valve Actuator Circuit

Subthrottle Valve Actuator Circuit

1. ECU

2. Subthrottle Valve Actuator

Subthrottle Valve Actuator Resistance Inspection

Turn the ignition switch to OFF. Disconnect the subthrottle valve actuator connector [A]. Connect a digital meter to the subthrottle valve actuator connector [A]. Measure the subthr ...

Exhaust Butterfly Valve Actuator (Service Code 63)

...

Other materials:

Connecting Rod Installation
NOTICE To minimize vibration, the connecting rods should have the same weight mark. Big End Cap [A] Connecting Rod [B] Weight Mark, Alphabet [C] Diameter Mark [D] (“” or No Mark) NOTICE If the connecting rods, big end bearing inserts, or crankshaft are replaced with new ones, select ...

Cylinder Compression Measurement
NOTE Use the battery which is fully charged. Warm up the engine thoroughly. Stop the engine. Remove the spark plugs (see Spark Plug Replacement in the Periodic Maintenance chapter). Attach the compression gauge [A] and adapter [B] firmly into the spark plug hole. Using the startermo ...

KIBS Hydraulic Unit Inspection
Remove the KIBS hydraulic unit (see KIBS Hydraulic Unit Removal). Visually inspect the connector terminals [A]. Replace the KIBS hydraulic unit or main harness if either of the terminals are cracked, bent, or otherwise damaged. If the KIBS hydraulic unit connector is clogged with mud or ...