Yamaha XSR 900 2022 Service Manual page 480

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
DTC
33 Hydraulic unit assembly
(ABS ECU) (abnormal
ABS motor power supply)
34 Hydraulic unit assembly
(ABS ECU) (short circuit in
ABS motor power supply
circuit)
41 Front wheel ABS (intermit-
tent wheel speed pulses or
incorrect depressuriza-
tion)
42 Rear wheel ABS (intermit-
tent wheel speed pulses or
incorrect depressuriza-
tion)
43* Front wheel sensor (miss-
45* ing pulses)
Item
Power is not supplied to
the motor circuit in the hy-
draulic unit assembly
(ABS ECU).
Short circuit is detected in
the motor power supply
circuit in the hydraulic unit
assembly (ABS ECU).
• 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.
• 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.)
Symptom
9-74
Check point
• Blown ABS motor fuse
• Defective coupler be-
tween the battery and the
hydraulic unit assembly
(ABS ECU)
• Open or short circuit in
the wire harness be-
tween the battery and the
hydraulic unit assembly
(ABS ECU)
• Defective hydraulic unit
assembly (ABS ECU)
• Defective hydraulic unit
assembly (ABS ECU)
• Incorrect installation of
the front wheel sensor
• Incorrect rotation of the
front wheel
• Front brake dragging
• Defective hydraulic unit
assembly (ABS ECU)
• Incorrect installation of
the rear wheel sensor
• Incorrect rotation of the
rear wheel
• Rear brake dragging
• Defective hydraulic unit
assembly (ABS ECU)
• 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