Yamaha YZF-R1 1998 Service Manual page 380

• Set the main switch to "ON".
• Set the light switch to "
• Measure the voltage (12 V) of blue/red 1
on the auxiliary light couplers (wire har-
ness side).
• Is the voltage within specification?
YES
This circuit is OK.
" or " ".
NO
The wiring circuit
from the main
switch to the auxil-
iary light connec-
tors is faulty and
must be repaired.
LIGHTING SYSTEM
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ELEC