NOTE
Be sure the battery is fully charged.
Main Harness [B] To Gear Position Switch [C] To Sidestand Switch [D]
Special Tool - Measuring Adapter: 57001-1700
Gear Position Switch Output Voltage Connections to Adapter: Digital Meter (+) → R (sensor G/R) lead Digital Meter (–) → Frame Ground terminal
When changing the gear position from lower gear to higher gear, raise the rear wheel off the ground with a suitable stand and rotate the rear wheel by hand.
Output Voltage at 1 
6 Gear
Positions
Standard:
1st About DC 3.0 V
2nd About DC 2.5 V
3rd About DC 2.0 V
4th About DC 1.5 V
5th About DC 1.1 V
6th About DC 0.7 V
Turn the ignition switch to OFF
If the reading is out of the standard, check the wiring for continuity, using the wiring diagram in this section.
Special Tool - Hand Tester: 57001-1394
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).
Gear Position Switch Circuit
1. ECU
2. Gear Position Switch
3. Meter Unit
4. Relay Box
5. Frame Ground 1
Gear Position Switch Removal/Installation
Front Wheel Rotation Sensor Signal (Service Code 27)Serial number locations
The engine and frame serial numbers are used to register the motorcycle.
They
are the only means of identifying your particular machine from others of the
same
model type. These serial numbers may be needed by your dealer when ordering
parts. In the event of theft, the investigating authoriti ...
Thermostat Inspection
Remove the thermostat (see Thermostat Removal).
Inspect the thermostat valve [A] at room temperature.
If the valve is open, replace the thermostat with a new
one.
To check valve opening temperature, suspend the thermostat
[A] in a container of water and raise the temperature
of ...
Check 3-5: Warning Indicator Light (Red LED) (Oil Pressure Warning)
Inspection
Connect the leads in the same circuit as Check 3-2.
Connect the terminal [10] to the battery (–) terminal.
Check that the oil pressure warning symbol [A] and the
warning indicator light (Red LED) [B] go on.
If the indicator light does not go on, replace the meter unit.
...