Yamaha 2007 XP500 Service Manual page 399

Malfunction
code
Front wheel sensor signal is not
received properly.
11*
Rear wheel sensor signal is not
received properly.
12
Incorrect signal is detected by the
front (13) or rear (14) wheel sensor.
13 (front)
14 (rear)
No continuity in the front (15) or rear
(16) wheel sensor circuits
15 (front)
16 (rear)
Disconnection and short-circuit of
hydraulic unit solenoid
21
Disconnection is detected between
the battery and ECU (ABS) system.
31
Circuit malfunction of ECU (ABS) is
detected.
Upstream side of the solenoid relay
32
Defective operation of the ABS motor
is detected. (ABS motor stops and will
not rotate.)
33
ABS (ANTI-LOCK BRAKE SYSTEM) (XP500A)
Problem Check point
Installation of the front wheel
G
sensor
Front wheel sensor lead and
G
coupler
ABS wireharness circuit
G
Front wheel sensor rotor
G
Installation of the rear wheel
G
sensor
Rear wheel sensor lead and
G
coupler
ABS wireharness circuit
G
Rear wheel sensor rotor
G
Wheel sensor installation
G
Wheel sensor housings
G
Wheel sensor rotors
G
Continuity of sensor circuits
G
ABS wireharness circuit
G
Connection of sensor coupler
G
Wire harness circuit
G
Hydraulic unit solenoid coupler
G
Hydraulic unit solenoid
G
Battery terminal is disconnect
G
Fuse (ABS motor)
G
ABS wireharness circuit
G
(between the battery and ECU
(ABS))
ECU (ABS) coupler
G
Wire harness circuit
G
Replace the ECU (ABS).
G
ABS wireharness circuit
G
ABS motor coupler
G
Fail-safe relay
G
ABS motor circuit
G
ABS motor fuse
G
8-84
Reference
Malfunction
code 11
Malfunction
code 12
Malfunction
codes 13
(front wheel)
and 14 (rear
wheel)
Malfunction
codes 15
(front wheel
sensor) and
16 (rear wheel
sensor)
Malfunction
code 21
Malfunction
code 31
Malfunction
code 32
Malfunction
code 33