Kawasaki Ninja Service Manual: Subthrottle Sensor Output Voltage Inspection

Kawasaki Ninja Service Manual / Self-Diagnosis System / Subthrottle Sensor (Service Code 32) / Subthrottle Sensor Output Voltage Inspection

Measure the output voltage at the subthrottle sensor in the same way as input voltage inspection, note the following.

Disconnect the subthrottle sensor connector and connect the setting adapter [A] between these connectors.

Subthrottle Sensor Output Voltage Inspection

Special Tool - Throttle Sensor Setting Adapter: 57001 -1538

Subthrottle Sensor Output Voltage Connections to Adapter: Digital Meter (+) → R (sensor BL/W) lead Digital Meter (–) → BK (sensor BR/BK) lead

Disconnect the subthrottle valve actuator connector [A].

Subthrottle Sensor Output Voltage Inspection

Measure the output voltage with the engine stopped with the connector joined.
Connect the following parts to harness connectors temporarily.

ECU Intake Air Temperature Sensor
Turn the ignition switch to ON.
Measure the output voltage when the subthrottle valves are fully opened by hand.

Output Voltage Standard: DC 0.8 1.0 V at
subthrottle valve full close position (for reference) DC 4.28 4.32 V at subthrottle valve
full open position

NOTE

Open the subthrottle valves, confirm the output voltage will be raise.
The standard voltage refers to the value when the voltage reading at the Input Voltage Inspection shows 5 V exactly.
When the input voltage reading shows other than 5 V, derive a voltage range as follows. Example: In the case of a input voltage of 4.75 V.

0.8 × 4.75 ÷ 5.00 = 0.76 V 1.0 × 4.75 ÷ 5.00 = 0.95 V Thus, the valid range is 0.76 ∼ 0.95 V
Turn the ignition switch to OFF.

If the reading is out of the standard, check the subthrottle sensor resistance (see Subthrottle Sensor Resistance Inspection).

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

Special Tool - Hand Tester: 57001-1394

Disconnect the ECU and sensor connectors.

Wiring Continuity Inspection ECU Connector [A] ←→ Subthrottle Sensor Connector [B] BL/W lead (ECU terminal 12) [C] BR/BK lead (ECU terminal 13) [D]

Subthrottle 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).

Subthrottle Sensor Input Voltage Inspection

NOTE Be sure the battery is fully charged. Turn the ignition switch to OFF. Remove the air cleaner housing (see Air Cleaner Housing Removal in the Fuel System (DFI) chapter) Disconnect the ...

Subthrottle Sensor Resistance Inspection

Turn the ignition switch to OFF. Disconnect the subthrottle sensor connector. Connect a digital meter [A] to the subthrottle sensor connector [B]. Measure the subthrottle sensor resistance. ...

Other materials:

Cylinder Head Cover Installation
Replace the cylinder head cover gasket [A] with a new one Using a high flash-point solvent, clean off any oil or dirt that may be on the silicone sealant coating area. Dry them with a clean cloth. Apply silicone sealant [B] to the cylinder head as shown in the figure. Sealant - Li ...

ZX1000JC /KC Models
1. Run the fuse box 2 lead in front of the rib for the fuse box 2. 2. Seat Lock Cable 3. Hook the licence plate light lead and the left turn signal light lead on the projection of the tool kit case. 4. Rib for Fuse Box 2 5. Run the starter relay lead in back of the rib for the fuse box 2 ...

Oil Pump Removal
Remove: Coolant (Drain, see Coolant Change in the Periodic Maintenance chapter) Engine Oil (Drain, see Engine Oil Change in the Periodic Maintenance chapter) Sidestand Switch Lead Connector [A] (Disconnect) Bolt [B] and Water Pipe [C] Water Pump Cover Bolts [D] Water Pump Cover [E ...