Honda NC700 2012, Service Manual

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22-4
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LIGHTS/METERS/SWITCHES
TROUBLESHOOTING
SPEED SENSOR/SPEEDOMETER (NC700X/XA/S/SA)
The speedometer operation is abnormal
1. Fuse Inspection
Check for blown main fuse or sub fuse.
Is the fuse blown?
YES – Replace the fuse.
NO – GO TO STEP 2.
2. Battery Inspection
Make sure the battery is fully charged and in good condition.
Is the battery in good condition?
YES – GO TO STEP 3.
NO – Charge or replace the battery (page 21-6).
3. VS Sensor Power Input Voltage Inspection
Disconnect the VS sensor 3P (Black) connector.
Measure the voltage at the VS sensor 3P (Black) connector terminals with the ignition switch turned ON.
Is there Battery Voltage?
YES – GO TO STEP 4.
NO – • Loose or poor contact of related terminals
• Open circuit in Pink/blue wire
• Open circuit in Green/red wire
4. VS Sensor Signal Line Inspection
With the ignition switch OFF, check for continuity between the VS sensor 3P (Black) connector and
combination meter 16P (Gray) connector.
Is there continuity?
YES – GO TO STEP 5.
NO – Open circuit in Pink/green wire
5. VS Sensor Signal Inspection
Connect the VS sensor 3P (Black) connector.
Support the motorcycle using a hoist or other support to raise the rear wheel off the ground.
Measure the output voltage (sensor signal) at the speedometer with the ignition switch turned ON while
slowly turning the rear wheel by your hand.
Is the voltage within specified value?
YES – Faulty combination meter
NO – Faulty VS sensor
CONNECTION: Pink/blue (+) – Green/red (–)
STANDARD:
Battery voltage
CONNECTION: Pink/green – Pink/green
CONNECTION: Pink/green (+) – Green/red (–)
STANDARD:
Repeat 0 to 5 V