Rear Wheel Rotation Sensor Signal Inspection
The rear 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 rear wheel rotation sensor signal for motorcycle speed and S-KTRC control.
The service code 24 is detected with the ECU.
Service Code b 44 (see Rear Wheel Rotation Sensor Signal Abnormal) Service Code b 45 (see Rear Wheel Rotation Sensor Wiring Inspection)
Special Tool - Hand Tester: 57001-1394
Wiring Continuity Inspection ECU Connector [A] ← → KIBS Hydraulic Unit Connector [B] R/Y lead (ECU terminal 34, KIBS Hydraulic Unit terminal 16) [C]
Wiring Continuity Inspection KIBS Hydraulic Unit Connector [A] ← → Rear Wheel Rotation Sensor Connector [B] G lead (KIBS Hydraulic Unit Connector terminal 14) [C] R lead (KIBS Hydraulic Unit Connector terminal 13) [D]
Special Tool - Hand Tester: 57001-1394
Wiring Continuity Inspection ECU Connector [A] ← → Rear Wheel Rotation Sensor Connector [B] R lead (ECU terminal 58) [C] R/Y lead (ECU terminal 34) [D]
Rear Resistor Resistance (in Main Harness)
Connections:
ECU Connector [A] ← → Ground [B]
R/Y lead (ECU terminal 34) [C]
Standard: 209 231 Ω
If the resistance is out of the standard, replace the main harness.
If the wiring and resistance are 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)
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)
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
Headlight Beam
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
...
ECU Removal
NOTICE
Never drop the ECU especially on a hard surface.
Such a shock to the ECU can damage it.
Remove the upper air cleaner housing (see Air Cleaner
Element Replacement in the Periodic Maintenance chapter).
Lift up the ECU [A] with rubber protector [B] to disconnect
the connectors [C]. ...
Spring Plate Free Play Measurement
Insufficient clutch free play will cause the engine braking
effect to be more sudden, resulting in rear wheel hop. On
the other hand, if the free play is excessive, the clutch lever
may feel “spongy” or pulsate when pulled.
Hold an extra drive shaft in a vise and install the following
c ...