Tachometer - Honda CBR125R Owner's Manual

TACHOMETER

INSPECTION
Remove the combination meter assembly (page 19-
9).
Temporarily connect the combination meter 9P
(Natural) and 3P (Natural) connectors.
Start the engine and measure the voltage between
the Yellow/green (+) and Green (–) wire terminals.
There should be at least 6 V pulse voltage.
If there is pulse voltage, replace the tachometer
(page 19-10).
If there is no pulse voltage, check for following:
– Open or short circuit in Yellow/green wire
– Open or short circuit in White/green line
– Blown main fuse
– Blown sub fuse
– Faulty main relay (page 19-22)
– Open circuit in Green wire
If the wires and tachometer are normal, replace the
ECM (page 5-65).
LIGHTS/METERS/SWITCHES
G
Y/G
W/G
19-11