Yamaha VMAX 2009 Service Manual page 528

Fault
code No.
ABS-54 Power voltage is too low.
Hydraulic unit sensor power monitor
ABS-56
circuit is abnormal.
ABS-63 Front wheel sensor power is abnormal.
ABS-64 Rear wheel sensor power is abnormal.
* A fault code is indicated if the rear wheel rotates for longer than about 20 seconds (fault code No.
ABS-11) or for longer than about 2 seconds (fault code No. ABS-25) with the front wheel stopped
(e.g., when the vehicle is on the centerstand).
TIP
Fault codes No. ABS-15 (front wheel) and ABS-16 (rear wheel) are indicated if a defective connection
is detected in the front or rear wheel sensor when the vehicle is not being ridden.
ABS (ANTI-LOCK BRAKE SYSTEM)
Symptom
8-95
Check point
• Battery voltage
• Connection of the ABS ECU coupler and
starter relay coupler
• Wire harness
• Refer to "CHARGING SYSTEM" on page
8-13.
• Hydraulic unit assembly
• Front wheel sensor lead
• Wire harness
• Hydraulic unit assembly
• Rear wheel sensor lead
• Wire harness
• Hydraulic unit assembly