Yamaha TMAX 2020 Service Manual page 530

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
DTC
41 Front wheel ABS (intermit-
tent wheel speed pulses or
incorrect depressuriza-
tion)
42 Rear wheel ABS (intermit-
47 tent wheel speed pulses or
incorrect depressuriza-
tion)
43 Front wheel sensor (miss-
ing pulses)
44 Rear wheel sensor (miss-
ing pulses)
51 • Vehicle system power
52 supply (voltage of ABS
ECU power supply is
high) (for DTC No. 51)
• Vehicle system power
supply (voltage of wheel
sensor power supply is
high) (for DTC No. 52)
Item
• Pulses from the front
wheel sensor are re-
ceived intermittently
while the vehicle is trav-
eling.
• Front wheel will not re-
cover from the locking
tendency even though
the signal is transmitted
from the ABS ECU to re-
duce the hydraulic pres-
sure.
• Pulses from the rear
wheel sensor are re-
ceived intermittently
while the vehicle is trav-
eling. (for DTC No. 42)
• Rear wheel will not re-
cover from the locking
tendency even though
the signal is transmitted
from the ABS ECU to re-
duce the hydraulic pres-
sure.
Front wheel sensor signal
is not received properly.
(Missing pulses are de-
tected in the signal while
the vehicle is traveling.)
Rear wheel sensor signal
is not received properly.
(Missing pulses are de-
tected in the signal while
the vehicle is traveling.)
• Power voltage supplied
to the ABS ECU in the
hydraulic unit assembly
is too high. (for DTC No.
51)
• Power voltage supplied
to the wheel sensor is too
high. (for DTC No. 52)
Symptom
9-56
Check point
• Incorrect installation of
the front wheel sensor
• Incorrect rotation of the
front wheel
• Front brake dragging
• Defective hydraulic unit
assembly
• Incorrect installation of
the rear wheel sensor
(for DTC No. 42)
• Incorrect rotation of the
rear wheel
• Rear brake dragging
• Defective hydraulic unit
assembly
• Foreign material ad-
hered around the front
wheel sensor
• Incorrect installation of
the front wheel
• Defective sensor rotor or
incorrect installation of
the rotor
• Defective front wheel
sensor or incorrect in-
stallation of the sensor
• Foreign material ad-
hered around the rear
wheel sensor
• Incorrect installation of
the rear wheel
• Defective sensor rotor or
incorrect installation of
the rotor
• Defective rear wheel
sensor or incorrect in-
stallation of the sensor
• Defective battery
• Disconnected battery
terminal
• Defective charging sys-
tem