Kawasaki Ninja Service Manual: Front Wheel Rotation Sensor Signal (Service Code 27)

Kawasaki Ninja Service Manual / Self-Diagnosis System / Front Wheel Rotation Sensor Signal (Service Code 27)

Front Wheel Rotation Sensor Signal Inspection

The front wheel rotation sensor sends the signal to the ECU through the KIBS hydraulic unit (KIBS equipped models). For other than KIBS equipped models, the signal is sent directly to the ECU.

The ECU uses the wheel rotation sensor signal for KTRC control.

The service code 27 is detected with the ECU.

Special Tool - Hand Tester: 57001-1394 Wiring Continuity Inspection ECU Connector [A] ← → KIBS ABS Hydraulic Unit Connector [B] G/Y lead (ECU terminal 4, KIBS Hydraulic Unit terminal 8) [C]

Front Wheel Rotation Sensor Signal Inspection


Wiring Continuity Inspection KIBS Hydraulic Unit Connector [A] ← → Front Wheel Rotation Sensor Connector [B] W lead (KIBS Hydraulic Unit Connector terminal 12) [C] Y lead (KIBS Hydraulic Unit Connector terminal 3) [D]

Front Wheel Rotation Sensor Signal Inspection


Front Wheel Rotation Sensor Signal Inspection


Special Tool - Hand Tester: 57001-1394 Wiring Continuity Inspection ECU Connector [A] ← → Front Wheel Rotation Sensor Connector [B] R lead (ECU terminal 58) [C] G/Y lead (ECU terminal 4) [D]

Front Wheel Rotation Sensor Signal Inspection


Front Resistor Resistance (in Main Harness) Connections: ECU Connector [A] ← → Ground [B] G/Y lead (ECU terminal 4) [C] Standard: 209 231 Ω


If the resistance is out of the standard, replace the main harness.

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).

Wheel Rotation Sensor Circuit (KIBS Equipped Models)

Wheel Rotation Sensor Circuit (KIBS Equipped Models)


1. ECU

2. Front Wheel Rotation Sensor

3. KIBS Hydraulic Unit

4. Rear Wheel Rotation Sensor

Wheel Rotation Sensor Circuit (other than KIBS Equipped Models)

Wheel Rotation Sensor Circuit (other than KIBS Equipped Models)


1. ECU

2. Front Wheel Rotation Sensor

3. Resistor F 220 Ω

4. Resistor R 220 Ω

5. Frame Ground 3

6. Rear Wheel Rotation Sensor

Wheel Rotation Sensor Circuit (other than KIBS Equipped Models)


This sensor has a weight [A] with two magnets inside, and sends a signal to the ECU. But when the motorcycle banks 60 70В° or more to either
side (in fact falls down), the weight turns and the signal changes. The ECU senses this change, and stops the fuel pump relay, the fuel injectors and the ignition system.

Hall IC [B] When the motorcycle is down, the ignition switch is left ON. If the starter button is pushed, the electric starter turns but the engine does not start. To start the engine again, raise the motorcycle, turn the ignition switch to OFF, and then turn it to ON.

Vehicle-down Sensor [A] Ground Terminal [B]: BR/BK Output Terminal [C]: Y/G Input Terminal [D]: BL

Wheel Rotation Sensor Circuit (other than KIBS Equipped Models)


Gear Position Switch Output Voltage Inspection
NOTE Be sure the battery is fully charged. Turn the ignition switch to OFF. Remove the fuel tank (see Fuel Tank Removal in the Fuel System (DFI) chapter). Disconnect the sidestand switc ...

Vehicle-down Sensor (Service Code 31)
...

Other materials:

ESD (Electronic Steering Damper) ECU Error (Service Code E3b, ZX1000JD/KD)
If this service code appears, check that the following parts are correctly. Crankshaft Sensor Gear Position Switch Starter Lockout Switch Main Throttle Sensor Rear Wheel Rotation Sensor If these parts are normal, check the ESD ECU for its ground and power supply (see ESD ECU Power Supply ...

Rear Shock Absorber Inspection
Press down on the seat several times to inspect the stroke. Visually inspect the rear shock absorber for oil leaks. If there is any doubt about the rear shock absorber, it should be inspected by an authorized Kawasaki dealer. A. Rear Shock Absorber Spring Preload Adjustment ...

Nozzle Assy Disassembly
Remove the nozzle assy (see Nozzle Assy Removal). Pull out the secondary fuel injectors [A] from the delivery pipe assy [B]. NOTE Do not damage the insertion portions of the injectors when they are pulled out from the delivery pipe assy. NOTICE Never drop the secondary fuel injecto ...