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

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)

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

Main Throttle Sensor Output Voltage Inspection


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

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

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:

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NOTE Do not turn the bolts because the reflector in the headlight comes off. A. Bolts The left and right adjusters on the headlight can move the direction of the headlight beam to up, down, left and right by turning each adjuster itself as the below table. A. Left Adjuster ...

Self-Diagnosis Procedures
NOTE Use a fully charged battery when conducting self-diagnosis. Otherwise, the light (LED) and symbol do not light or blink. Turn the ignition switch to ON. When a problem occurs with DFI system and ignition system, the warning indicator light (LED) [A] goes on and FI warning symbol ...

Tie-Rod Removal
Squeeze the brake lever slowly and hold it with a band [A]. Remove the front footpeg bracket bolts [A]. Raise the rear wheel off the ground with the jack (see Rear Shock Absorber Removal). Special Tools - Jack: 57001-1238 Jack Attachment: 57001-1608 Remove: Upper ...