Disconnect the vehicle speed sensor 3P connector and check for loose or poor contact of the connector.

With the ignition switch turned to "ON", measure the voltage of the vehicle speed sensor 3P connector at the wire harness side.
Connection: Black/brown (+) - Green/black (-).
Standard: Battery voltage.
If there is no voltage, replace and repair the wire harness.

Remove the headlight (page 19-4).
Check for loose or poor connection of the speedometer 6P connector.
With the ignition switch turned to "ON", measure the voltage at the speedometer 6P connector.
Connection: Black/brown (+) - Green/black (-).
Standard: Battery voltage.
If there is no voltage, replace and repair the wire harness.
