Kawasaki Ninja Service Manual: Main Throttle Sensor Output Voltage Inspection

Kawasaki Ninja Service Manual / Self-Diagnosis System / Main Throttle Sensor (Service Code 11) / Main Throttle Sensor Output Voltage Inspection

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

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

Main Throttle Sensor Output Voltage Inspection

Special Tool - Throttle Sensor Setting Adapter: 57001 -1538

Main Throttle Sensor Output Voltage Connections to Adapter: Digital Meter (+) → R (sensor V/W) lead

Digital Meter (–) → BK (sensor BR/BK) lead

Install the following parts temporarily.

Throttle Body Assy (see Throttle Body Assy Installation in the Fuel System (DFI) chapter) Air Cleaner Housing (see Air Cleaner Housing Installation in the Fuel System (DFI) chapter) Fuel Tank (see Fuel Tank Installation in the Fuel System (DFI) chapter)

Start the engine and warm it up thoroughly.
Check idle speed to ensure the throttle opening is correct (see Idle Speed Inspection in the Periodic Maintenance chapter).

Throttle Sensor Setting Adapter [A]

Idle Speed Standard: 1 100 ±50 r/min (rpm)

Main Throttle Sensor Output Voltage Inspection

Turn the ignition switch to OFF.
Measure the output voltage with the engine stopped, and with the connector joined.
Turn the ignition switch to ON.

Output Voltage Standard: DC 0.64 0.68 V at idle
throttle opening DC 3.89 4.09 V at full throttle
opening (for reference)

NOTE

Open the throttle, 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.

0.64 × 4.75 ÷ 5.00 = 0.61 V 0.68 × 4.75 ÷ 5.00 = 0.65 V Thus, the valid range is 0.61
0.65 V

Turn the ignition switch to OFF.

If the reading is out of the standard, replace the throttle body assy.

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.

Main Throttle Sensor Output Voltage Inspection

Wiring Continuity Inspection ECU Connector [A] ←→ Main Throttle Sensor Connector [B] V/W lead (ECU terminal 25) [C] BR/BK lead (ECU terminal 13) [D]

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).

Main Throttle Sensor Circuit

Main Throttle Sensor Circuit

1. ECU

2. Subthrottle Sensor

3. Main Throttle Sensor

Main Throttle Sensor Resistance Inspection

Turn the ignition switch to OFF. Measure the main throttle sensor resistance in the same way as input voltage inspection, note the following. Disconnect the throttle sensor setting adapter [ ...

Intake Air Pressure Sensor #1 (Service Code 12)

...

Other materials:

Air Intake Duct Assembly (Other than US, CA and CAL Models)
Install the seals [A] as shown in the figure. Fit the projections [A] of the air intake valve to the hole [B] of the air intake ducts. Tighten: Torque - Air Intake Duct Assembly Screws: 1.5 N·m (0.15 kgf·m, 13 in·lb) Hang the shaft [A] to the air intake valve securely ...

Key Registration
Case 1: When the ignition key has been lost or additional spare ignition key is required. Prepare a new spare ignition key. Cut the key in accordance with the shape of the current ignition key. Remove the rear seat (see Rear Seat Removal in the Frame chapter). Remove the immobilizer/K ...

Lubrication
It is important to lubricate rotating or sliding parts during assembly to minimize wear during initial operation. Lubrication points are called out throughout this manual, apply the specific oil or grease as specified. Direction of Engine Rotation When rotating the crankshaft by hand, the fre ...