Yamaha 2014 MT-07 Service Manual page 509

Fault code No.
Item
Symptom
Order Item/components and probable cause
4 Defective rear wheel sensor or incorrect
installation of the sensor
Fault code No. 15
TIP
Turn the main switch to "OFF" before disconnecting or connecting a coupler.
Fault code No.
Item
Symptom
Order Item/components and probable cause
1 Defective coupler between the front wheel
sensor and the hydraulic unit assembly
2 Open or short circuit in the wire harness
between the front wheel sensor and the
hydraulic unit assembly
ABS (ANTI-LOCK BRAKE SYSTEM)
14
27
Rear wheel sensor (abnormal pulse period)
Rear wheel sensor signal is not received properly. (The pulse period
is abnormal while the vehicle is traveling.)
Check or maintenance job
Check the wheel sensor for damage and the installed
condition of the sensor. Repair or replace the wheel
sensor if necessary.
Refer to "MAINTENANCE OF THE REAR WHEEL
SENSOR AND SENSOR ROTOR" on page 4-31.
15
Front wheel sensor (open or short circuit)
Open or short circuit is detected in the front wheel sensor.
Check or maintenance job
• 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.
See TIP.
• Check for continuity between the white terminal "1"
and the white terminal "4" and between the black ter-
minal "2" and the black terminal "5".
• If there is no continuity, the wire harness is defective.
Replace the wire harness.
• Check that there is no short circuit between the white
terminal "1" and the black terminal "2" and between
the white terminal "4" and the black terminal "5".
• If there is short circuit, the wire harness is defective.
Replace the wire harness.
• Check that there is no short circuit between the black
terminal "3" and the white terminal "4" and between
the black terminal "3" and the black terminal "5".
• If there is short circuit, the wire harness is defective.
Replace the wire harness.
6. ABS ECU
7. Front wheel sensor
8-104
2
1
W B B W
R/W G G/R W/Y
R/L
Y G G Br/W L/R L/B B/L
4
5
B
W B W Gy
B/G
3
7
6