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

Kawasaki Ninja Service Manual / Self-Diagnosis System / Idle Speed Control Valve Actuator (Service Code 1C) / Idle Speed Control Valve Actuator Input Voltage Inspection

NOTE

Be sure the battery is fully charged.

Idle Speed Control Valve Actuator Input Voltage Inspection

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

Idle Speed Control Valve Actuator Input Voltage Inspection

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.

Idle Speed Control Valve Actuator Input Voltage Inspection

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

Idle Speed Control Valve Actuator Circuit

1. ECU

2. Idle Speed Control Valve Actuator

Idle Speed Control Valve Actuator Resistance Inspection

Turn the ignition switch to OFF. Remove the air cleaner housing (see Air Cleaner Housing Removal in the Fuel System (DFI) chapter). Disconnect the idle speed control valve actuator connector ...

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Remove the rear shock absorber from the frame (see Rear Shock Absorber Removal). Loosen the locknut and turn out the adjusting nut to free the spring. Special Tools - Hook Wrench T=3.2 R37: 57001-1539 Hook Wrench R=35: 57001-1580 To adjust the spring preload, turn in the adjusting n ...

Storage of Removed Parts
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Idle Speed Inspection
Start the engine and warm it up thoroughly. With the engine idling, turn the handlebar to both sides [A]. If handlebar movement changes the idle speed, the throttle cables may be improperly adjusted or incorrectly routed, or damaged. Be sure to correct any of these conditions before rid ...