Yamaha 2003 FJR1300, Service Manual

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CHAS
EAS00877
Electronic ABS features
The Yamaha ABS (Anti-lock Brake System) has been developed with the most advanced electronic
technology.
The ABS control is processed with good response providing various travel conditions for motorcy-
cles.
The ABS also includes a highly developed self-diagnostic function. The ABS detects any problem
conditions and allows normal braking even if the ABS is not operating properly.
When this occurs, the ABS warning light on the meter assembly comes on.
The ABS stores the malfunction codes in the memory of the ECU (ABS) for easy problem identifica-
tion and troubleshooting.
ABS block diagram
1
Rear brake master cylinder
2
Hydraulic unit
3
Hydraulic pump
4
ABS motor
5
Buffer chamber
6
Hydraulic control valve
7
Front brake master cylinder
8
Rear brake caliper
9
Front brake caliper
0
ECU (ABS)
A
Rear wheel sensor
B
Front wheel sensor
C
ABS warning light
ANTI-LOCK BRAKE SYSTEM (FJR1300A)