Yamaha XP500 Service Manual page 294

CHAS
ANTI-LOCK BRAKE SYSTEM (XP500A)
4 Main switch
9 ABS control unit fuse
B Signaling system fuse
G Battery
H ABS motor fuse
I Main fuse
M Starting circuit cut-off relay 2
N Starting circuit cut-off relay 1
R Start switch
S Engine stop switch
U Front brake light switch
W ECU (engine)
d ABS test coupler
e ECU (ABS)
f Front wheel sensor
g Rear wheel sensor
h Fail-safe relay
i Hydraulic unit
y Rear brake light switch
} Tail/brake light
® Multi-function display
... ABS warning light
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