Yamaha R1 Series 2015 Service Manual page 628

Fault code No. 57
Fault code No.
Item
Symptom
Order Item/components and probable cause
1 Short-circuit in CAN communication line
2 Defective battery
3 Defective coupler between the battery
and the hydraulic unit assembly
4 Open or short circuit in the wire harness
between the battery and the hydraulic unit
assembly
5 Defective charging system
Fault code No. 62
Fault code No.
Item
Symptom
Order Item/components and probable cause
1 Defective hydraulic unit assembly
57
Vehicle CAN communication line or power source of vehicle system
Short-circuit in CAN communication line or the voltage that sup-
plies the hydraulic unit assembly is too low.
Check or maintenance job
Replace if there is an open or short circuit.
• Between ABS ECU coupler and joint coupler.
(blue/white–blue/white)
(blue/black–black/blue)
• Between joint coupler and ECU coupler.
(blue/white–blue/white)
(blue/black–black/blue)
Recharge or replace the battery.
Refer to "CHECKING AND CHARGING THE BATTERY"
on page 8-181.
• 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 cou-
pler securely.
TIP
Turn the main switch to "OFF" before disconnecting or
connecting a coupler.
Replace if there is an open or short circuit.
• Between ABS ECU coupler and starter relay coupler
(ABS motor fuse).
(red/white–red/white)
• Between ABS ECU coupler and ABS solenoid fuse.
(blue/white–blue/white)
Check the charging system.
Refer to "CHARGING SYSTEM" on page 8-17.
62
Power supply voltage failure in pressure sensor
Abnormality detected in pressure sensor power source circuit of
hydraulic unit assembly.
Check or maintenance job
Replace the hydraulic unit assembly.
Refer to "ABS (Anti-lock Brake System)" on page 4-65.
8-147
ABS (Anti-lock Brake System)