Starter Relay Switch A Inspection; Relay Coil Ground Line; Relay Coil Input Voltage Line; Operation Check - Honda GL1800 Service Manual

STARTER/REVERSE SYSTEM
STARTER RELAY SWITCH A
Make sure the engine stop switch is turned to " "
and the reverse shift switch is pushed to "OFF."
Remove the left saddlebag (page 2-15).
INSPECTION
Shift the transmission into neutral.
Turn the ignition switch to "ON" and check that the
neutral indicator comes on.
Push the starter/reverse switch.
The coil is normal if starter relay switch A clicks.
If you don't hear the switch "click," turn the ignition
switch to "OFF," disconnect the 2P red connector of
starter relay switch A and check the following:

RELAY COIL GROUND LINE

Turn the ignition switch to "ON."
Check for continuity between the Brown/red wire
(ground line) terminal of the wire harness side con-
nector and ground.
If there is continuity when the transmission is in
neutral, or when the clutch is disengaged and the
side stand is retracted, the ground line is normal.
(There is a slight resistance due to the diode.)

RELAY COIL INPUT VOLTAGE LINE

Turn the ignition switch to "ON."
Measure the voltage between the Yellow/red wire
terminal (+) of the wire harness side connector and
ground (–).
If battery voltage is present only when the starter/
reverse switch is pushed in, the input voltage line is
normal.

OPERATION CHECK

Disconnect the battery and starter relay switch
cables from starter relay switch A.
Connect a fully charged 12-V battery to the connec-
tor terminals of starter relay switch A.
CONNECTION:
Battery (+) terminal – Yellow/red wire terminal
Battery (–) terminal – Green/red wire terminal
There should be continuity between the cable termi-
nals while the battery is connected, and no continu-
ity when the battery is disconnected.
19-24
ellow/red
Green/red