Yamaha MTN1000 2016 Service Manual page 593

Fault code No. 53
Fault code No.
Item
Symptom
Order Item/components and probable cause
1 Defective battery
2 Defective coupler between the battery
and the hydraulic unit assembly
3 Open or short circuit in the wire harness
between the battery and the hydraulic unit
assembly
4 Defective charging system
Fault code No. 55
Fault code No.
Item
Symptom
Order Item/components and probable cause
1 Defective hydraulic unit assembly
Fault code No. 56
Fault code No.
Item
Symptom
Order Item/components and probable cause
1 Defective hydraulic unit assembly
53
Vehicle system power supply (voltage of ABS ECU power supply is
low)
Power voltage supplied to the ABS ECU in the hydraulic unit assem-
bly is too low.
Check or maintenance job
Recharge or replace the battery.
Refer to "CHECKING AND CHARGING THE BATTERY"
on page 8-195.
• 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 ABS ECU fuse.
(red/black–red/black)
Check the charging system.
Refer to "CHARGING SYSTEM" on page 8-13.
55
Hydraulic unit assembly (defective ABS ECU)
Abnormal data is detected in the hydraulic unit assembly.
Check or maintenance job
Replace the hydraulic unit assembly.
Refer to "ABS (Anti-lock Brake System)" on page 4-65.
56
Hydraulic unit assembly (abnormal internal circuit)
Abnormality detected in internal 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.
8-176
ABS (Anti-lock Brake System)