Yamaha XSR MTM690 2016 Service Manual page 499

Fault code No.
24 Brake light switch or
tail/brake light
31 Hydraulic unit assembly (ab-
normal ABS solenoid power
supply)
32 Hydraulic unit assembly
(short circuit in ABS solenoid
power supply circuit)
33 Hydraulic unit assembly (ab-
normal ABS motor power
supply)
34 Hydraulic unit assembly
(short circuit in ABS motor
power supply circuit)
41 Front wheel ABS (intermit-
tent wheel speed pulses or
incorrect depressurization)
ABS (ANTI-LOCK BRAKE SYSTEM)
Item
Brake light signal is not re-
ceived properly while the ve-
hicle is traveling. (Brake light
circuit, or front or rear brake
light switch circuit)
Power is not supplied to the
solenoid circuit in the hy-
draulic unit assembly.
Short circuit is detected in
the solenoid power supply
circuit in the hydraulic unit
assembly.
Power is not supplied to the
motor circuit in the hydraulic
unit assembly.
Short circuit is detected in
the motor power supply cir-
cuit in the hydraulic unit as-
sembly.
• Pulses from the front wheel
sensor are received inter-
mittently while the vehicle
is traveling.
• Front wheel will not recover
from the locking tendency
even though the signal is
transmitted from the ABS
ECU to reduce the hydrau-
lic pressure.
8-128
Symptom
• Defective signaling system
• Defective coupler between
• Open or short circuit in the
• Defective hydraulic unit as-
• Blown ABS solenoid fuse
• Defective coupler between
• Open or short circuit in the
• Defective hydraulic unit as-
• Defective hydraulic unit as-
• Blown ABS motor fuse
• Defective coupler between
• Open or short circuit in the
• Defective hydraulic unit as-
• Defective hydraulic unit as-
• Incorrect installation of the
• Incorrect rotation of the
• Front brake dragging
• Defective hydraulic unit as-
Check point
(tail/brake light or brake
light switch)
the signaling system
(tail/brake light or brake
light switch) and the hy-
draulic unit assembly
wire harness between the
signaling system (tail/brake
light or brake light switch)
and the hydraulic unit as-
sembly
sembly
the battery and the hydrau-
lic unit assembly
wire harness between the
battery and the hydraulic
unit assembly
sembly
sembly
the battery and the hydrau-
lic unit assembly
wire harness between the
battery and the hydraulic
unit assembly
sembly
sembly
front wheel sensor
front wheel
sembly