Yamaha TMAX 2020 Service Manual page 529

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
DTC
24 Brake light switch or tail/
brake light
31 Hydraulic unit assembly
(abnormal ABS solenoid
power supply)
32 Hydraulic unit assembly
(short circuit in ABS sole-
noid power supply circuit)
33 Hydraulic unit assembly
(abnormal ABS motor
power supply)
34 Hydraulic unit assembly
(short circuit in ABS motor
power supply circuit)
Item
Brake light signal is not re-
ceived properly while the
vehicle is traveling. (Brake
light circuit, or front or rear
brake light switch circuit.)
Power is not supplied to
the solenoid circuit in the
hydraulic 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 hy-
draulic unit assembly.
Short circuit is detected in
the motor power supply
circuit in the hydraulic unit
assembly.
Symptom
9-55
Check point
• Defective signaling sys-
tem (tail/brake light or
brake light switch)
• Defective coupler be-
tween the signaling sys-
tem (tail/brake light or
brake light switch) and
the hydraulic unit assem-
bly
• Open or short circuit in
the wire harness be-
tween the signaling sys-
tem (tail/brake light or
brake light switch) and
the hydraulic unit assem-
bly
• Defective hydraulic unit
assembly
• Blown ABS solenoid fuse
• Defective coupler be-
tween the battery and the
hydraulic unit assembly
• Open or short circuit in
the wire harness be-
tween the battery and the
hydraulic unit assembly
• Defective hydraulic unit
assembly
• Defective hydraulic unit
assembly
• Blown ABS motor fuse
• Defective coupler be-
tween the battery and the
hydraulic unit assembly
• Open or short circuit in
the wire harness be-
tween the battery and the
hydraulic unit assembly
• Defective hydraulic unit
assembly
• Defective hydraulic unit
assembly