Kawasaki Ninja Service Manual: Idle Speed Control Valve Actuator Input Voltage Inspection

NOTE

• Be sure the battery is fully charged.

• Turn the ignition switch to OFF.
• Disconnect the idle speed control valve actuator connector and connect a suitable measuring leads [A] between these connectors as shown in the figure.

  Main Harness [B] Idle Speed Control Valve Actuator [C]

• 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

Idle Speed Control Valve Actuator Input Voltage Connections to Adapter: (I) Digital Meter (+) → R (actuator G/R) lead Digital Meter (–) → Battery (–) terminal (II) Digital Meter (+) → W (actuator G/O) lead Digital Meter (–) → Battery (–) terminal (III) Digital Meter (+) → Y (actuator G/Y) lead Digital Meter (–) → Battery (–) terminal (IV) Digital Meter (+) → BK (actuator G/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 9 11 V and then
1 V or About DC 9 11 V

• Turn the ignition switch to OFF.

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.

Wiring Continuity Inspection ECU Connector [A] ←→ Idle Speed Control Valve Actuator Connector [B] G/BK lead (ECU terminal 42) [C] G/Y lead (ECU terminal 43) [D] G/O lead (ECU terminal 44) [E] G/R lead (ECU terminal 56) [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).

Idle Speed Control Valve Actuator Circuit

1. ECU

2. Idle Speed Control Valve Actuator