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
Front Wheel Rotation Sensor Signal Abnormal (Service Code b 42)
Measure the air gap between the front wheel rotation sensor
and sensor rotor.
Thickness Gauge [A]
Air Gap
Standard: 0.4 1.6 mm (0.02
0.06 in.)
If the measurement is not the standard, check each part
for deformation and looseness and correct accordingly.
If the measurement is t ...
Drive Chain
The drive chain slack and lubrication
must be checked each day before riding
the motorcycle and must be maintained
in accordance with the Periodic
Maintenance Chart for safety and to
prevent excessive wear. If the chain
becomes badly worn or maladjusted -
either too loose or too tight - the c ...
Water Pump Inspection
Remove the left lower fairing (see Lower Fairing Removal
in the Frame chapter).
Check the drainage outlet passage [A] at the bottom of
the water pump body for coolant leaks.
If the mechanical seal is damaged, the coolant leaks
through the seal and drains through the passage. Replace
th ...