Kawasaki Ninja Service Manual: Exhaust Butterfly Valve Actuator Sensor Output Voltage Inspection

Kawasaki Ninja Service Manual / Self-Diagnosis System / Exhaust Butterfly Valve Actuator Sensor (Service Code 34) / Exhaust Butterfly Valve Actuator Sensor Output Voltage Inspection

NOTE

Before this inspection, confirm the pulley is original position (see Exhaust Butterfly Valve Actuator Installation).

Disconnect: 3 Pins Connector [A] (see Exhaust Butterfly Valve Actuator Sensor Output Voltage Inspection) 2 Pins Connector [B]

Exhaust Butterfly Valve Actuator Sensor Output Voltage Inspection

Connect the harness adapter [A] between the 3 pins connectors.

Special Tool - Throttle Sensor Setting Adapter #1: 57001 -1400

Connect a digital meter to the harness adapter leads.

Exhaust Butterfly Valve Actuator Sensor Output Voltage Connections to Adapter: Digital Meter (+) → BL (actuator Y) lead Digital Meter (−) → BK/BL (actuator BK) lead

Exhaust Butterfly Valve Actuator Sensor Output Voltage Inspection

Measure the output voltage at the 3 pins connector of the exhaust butterfly valve actuator when the pulley is original position.
Turn the ignition switch to ON.

Output Voltage Standard: DC 3.46 3.76 V at pulley
original position

Turn the ignition switch to OFF.

If the reading is out of the standard, check the exhaust butterfly valve actuator sensor resistance (see Exhaust Butterfly Valve Actuator Sensor Resistance Inspection).

If the reading is within the standard, remove the ECU and check the wiring for continuity between main harness connectors.

Disconnect the ECU and sensor connectors

Wiring Inspection ECU Connector [A] ←→ Exhaust Butterfly Valve Actuator Sensor Connector [B] GY lead (ECU terminal 24) [C] BR/BK lead (ECU terminal 13) [D]

Exhaust Butterfly Valve Actuator Sensor Output Voltage Inspection

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).

Exhaust Butterfly Valve Actuator Sensor Input Voltage Inspection

NOTE Be sure the battery is fully charged. Turn the ignition switch to OFF. Remove the front seat (see Front Seat Removal in the Frame chapter). Remove the screws [A] and the exhaust butter ...

Exhaust Butterfly Valve Actuator Sensor Resistance Inspection

Turn the ignition switch to OFF. Disconnect the exhaust butterfly valve actuator sensor connector (3 pins connector) [A] (see Exhaust Butterfly Valve Actuator Sensor Input Voltage Inspection) ...

Other materials:

Rear Frame Front Removal
Remove: Rear Frame Rear (see Rear Frame Rear Removal) Rear Fender Front (see Rear Fender Front Removal) Rear Footpeg Bracket Bolts [A] Rear Footpeg Bracket [B] Rear Frame Front Bolts [C] Left Rear Frame Front [D] Remove: Rear Footpeg Bracket Bolts [A] Rear Footpeg Bracke ...

Balancer Adjustment
Remove the left lower fairing (see Lower Fairing Removal in the Frame chapter). Start the engine and warm it up thoroughly. Adjust the balancer gear backlash with the engine idling. The amount of backlash can be changed by turning the balancer shaft which has eccentric journals. St ...

Charging Voltage Inspection
Check the battery condition (see Charging Condition Inspection). Warm up the engine to obtain actual alternator operating conditions. Remove the front seat (see Front Seat Removal in the Frame chapter). Check that the ignition switch is turned off, and connect the hand tester [A] to t ...