Yamaha XVS950CU 2014, Service Manual

Page: 523 / 580

ABS (ANTI-LOCK BRAKE SYSTEM) (for ABS models)
7-132
Fault code No. 16
Item Rear wheel sensor (open or short circuit)
Symptom Open or short circuit is detected in the rear wheel sensor.
Order
Item/components and probable
cause
Check or maintenance job
1 Defective coupler between the rear
wheel sensor and the hydraulic unit
assembly • Check the coupler for any pins that may be pulled
out.
• Check the locking condition of the coupler.
• If there is a malfunction, repair it and connect the
coupler securely.
TIP
Turn the main switch to “OFF” before disconnecting
or connecting a coupler.
2 Open or short circuit in the wire har-
ness between the rear wheel sensor
and the hydraulic unit assembly • Check for continuity between the white/red termi-
nal “1” and the white/red terminal “4” and be-
tween the white terminal “2” and the white
terminal “5”.
• If there is no continuity, the wire harness is defec-
tive. Replace the wire harness.
• Check that there is no short circuit between the
white/red terminal “1” and the white terminal “2”
and between the white/red terminal “4” and the
white terminal “5”.
• If there is continuity, the wire harness is defective.
Replace the wire harness.
• Check that there is no short circuit between the
black/yellow terminal “3” and the white/red termi-
nal “4” and between the black/yellow terminal “3”
and the white terminal “5”.
• If there is short circuit, the wire harness is defec-
tive. Replace the wire harness.
6. ABS ECU
7. Wheel sensor
3 Defective rear wheel sensor or hy-
draulic unit assembly If the above items were performed and no malfunc-
tions were found, the wheel sensor or hydraulic unit
assembly is defective. Replace the wheel sensor or
hydraulic unit assembly.
Refer to “REAR WHEEL” on page 4-19 and “ABS
(ANTI-LOCK BRAKE SYSTEM) (for ABS models)”
on page 4-61.
R
Sb R / B
G
Y P
B
L W
Br / W L / R L / B B / Y B / W
W / R W / L G / B W / Y
W Gy W / R W
1 2
4
7
5
6
3