Kawasaki Ninja Service Manual: Oxygen Sensor Heater Power Source Voltage Inspection

Kawasaki Ninja Service Manual / Self-Diagnosis System / Oxygen Sensor Heater (Service Code 67, Equipped Models) / Oxygen Sensor Heater Power Source Voltage Inspection

NOTE

Be sure the battery is fully charged.

Oxygen Sensor Heater Power Source Voltage Inspection

Turn the ignition switch to OFF.
Remove the fuel tank (see Fuel Tank Removal in the Fuel System (DFI) chapter).
Disconnect the oxygen sensor lead connector and connect the measuring adapter [A] between these connectors as shown in the figure.

Main Harness [B] Oxygen Sensor [C]

Special Tool - Measuring Adapter: 57001-1700

Connect a digitalmeter [D] to the measuring adapter lead.

Oxygen Sensor Heater Power Source Voltage Connections to Adapter: Digital Meter (+) → R (main harness W/R) lead Digital Meter (–) → Frame Ground terminal

Oxygen Sensor Heater Power Source Voltage Inspection

Measure the power source voltage with the engine stopped and with the connector joined.
Turn the ignition switch to ON.

Power Source Voltage Standard: Battery Voltage

Turn the ignition switch to OFF.

If the reading is in specification, but the problem still exists, replace the ECU (see ECU Removal/Installation in the Fuel System (DFI) chapter).

If the reading is out of the standard, check the following.

ECU Relay Fuse 15 A (see Fuse Inspection in the Electrical System chapter) Power Source Wiring (see Oxygen Sensor Circuit)

If the fuse and wiring are good, remove the ECU and check the wiring for continuity between harness connectors.

Special Tool - Hand Tester: 57001-1394

Disconnect the ECU and sensor connectors.

Oxygen Sensor Heater Power Source Voltage Inspection

Wiring Continuity Inspection ECU Connector [A] ←→ Oxygen Sensor Connectors [B] R lead (ECU terminal 76) [C]

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).

Oxygen Sensor Circuit

Oxygen Sensor Circuit

1. ECU

2. Oxygen Sensor

3. Ignition Switch

4. Joint Connector F

5. Joint Connector A

6. Fuse Box 1

7. Ignition Fuse 15 A

8. Relay Box

9. ECU Main Relay

10. Frame Ground 3

11. Starter Relay

12. ECU Fuse 15 A

13. Main Fuse 30 A

14. Battery

15. Engine Ground

Oxygen Sensor Heater Resistance Inspection

Turn the ignition switch to OFF. Remove the fuel tank (see Fuel Tank Removal in the Fuel System (DFI) chapter). Disconnect the oxygen sensor lead connector [A]. Connect a digital me ...

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Fuel Injector Output Voltage Inspection
NOTE Be sure the battery is fully charged. Turn the ignition switch to OFF. Remove the ECU (see ECU Removal). Do not disconnect the ECU connector Connect a digital meter [A] to the connector (gray) [B] with the needle adapter set. Special Tool - Needle Adapter Set: 57001-1457 ...

DFI Parts Location
Main Throttle Sensor [A] Subthrottle Sensor [B] Idle Speed Control Valve Actuator [C] Subthrottle Valve Actuator [D] Intake Air Pressure Sensor #2 [E] Stick Coils #1, #2, #3, #4 [F] Air Switching Valve [G] Intake Air Pressure Sensor #1 [H] Water Temperature Sensor [A] Primary Fuel Injec ...

Brake Pedal Position Adjustment
NOTE Usually it is not necessary to adjust the pedal position, but always adjust it when push rod locknut has been loosened. Loosen the locknut [A] and turn the push rod with the hex head [B] to achieve the correct pedal position. If the length [C] shown is 69 ±1 mm (2.7 ±0.04 in.), th ...