Yamaha Vmax VMX17C 2009 Service Manual page 546

Fault code No. ABS-64
Order Item/components and probable
cause
1 Short circuit in wire harness.
2 Short circuit in rear wheel sensor
lead.
3 Hydraulic unit internal malfunction.
ABS (ANTI-LOCK BRAKE SYSTEM)
Symptom Rear wheel sensor power is abnormal.
Check or maintenance job
• Check that there is no short cir-
cuit between the white terminal
"1" and the black terminal "2".
• Check that there is no short cir-
cuit between the frame ground
and the black terminal "2".
• If there is a short circuit, the
wire harness is defective. Prop-
erly repair or replace the wire
harness.
TIP
Disconnect the ABS ECU coupler
before checking the wire har-
ness.
• Check that there is no short cir-
cuit between the gray terminal
"3" and the white terminal "4".
• Check that there is no short cir-
cuit between the frame ground
and the gray terminal "3".
• If there is a short circuit, the
rear wheel sensor is defective.
Properly repair or replace the
rear wheel sensor.
B/W
Lg/W B/L B
B
Lg/L
5. ABS ECU
6. Rear wheel sensor
Replace the hydraulic unit as-
sembly.
8-113
2 1 4 3
B W Ch L/W W/Y
Br/R
W G/R
Br
Y L/W Ch G/Y R/L
B W W Gy
5 6
Reinstatement
confirmation
method
Turn the main
switch to "ON"
and check that
the ABS warn-
ing light comes
on for 2 sec-
onds, then
goes off.