Yamaha R1 Series 2015 Service Manual page 629

Fault code No. 63
Fault code No.
Item
Symptom
Order Item/components and probable cause
1 Defective front brake line
2 Defective hydraulic unit assembly
Fault code No. 64
Fault code No.
Item
Symptom
Order Item/components and probable cause
1 Defective rear brake line
2 Defective hydraulic unit assembly
Fault code No. 68
Fault code No.
Item
Symptom
Order Item/components and probable cause
1 Defective front brake line
2 Defective hydraulic unit assembly
Fault code No. 69
Fault code No.
Item
Symptom
Order Item/components and probable cause
1 Defective rear brake line
63
Defective front pressure sensor
Abnormality detected in pressure sensor circuit at front master cyl-
inder side of hydraulic unit assembly.
Check or maintenance job
Check the front brake line, and if there is bending or
blocking, replace the front brake line.
Replace the hydraulic unit assembly.
Refer to "ABS (Anti-lock Brake System)" on page 4-65.
64
Defective rear pressure sensor
Abnormality detected in pressure sensor circuit at rear master cyl-
inder side of hydraulic unit assembly.
Check or maintenance job
Check the rear brake line, and if there is bending or
blocking, replace the rear brake line.
Replace the hydraulic unit assembly.
Refer to "ABS (Anti-lock Brake System)" on page 4-65.
68
Defective hydraulic unit assembly (defective front pressure sensor)
Abnormality detected in pressure sensor circuit at front caliper side
of hydraulic unit assembly.
Check or maintenance job
Check the front brake line and if there is bending or
blocking, replace the front brake line.
Replace the hydraulic unit assembly.
Refer to "ABS (Anti-lock Brake System)" on page 4-65.
69
Defective hydraulic unit assembly (defective rear pressure sensor)
Abnormality detected in pressure sensor circuit of hydraulic unit
assembly.
Check or maintenance job
Check the rear brake line, and if there is bending or
blocking, replace the rear brake line.
8-148
ABS (Anti-lock Brake System)