Yamaha Tenere 700 2020, Service Manual

Page: 427 / 472

ABS (ANTI-LOCK BRAKE SYSTEM)
8-116
Fault code No. 31
TIP
Turn the main switch to “OFF” before disconnecting or connecting a coupler.
3 Open or short circuit in the wire harness
between the signaling system (tail/brake
light or brake light switch) and the hydrau-
lic unit assembly • Between ABS ECU coupler and joint coupler.
(yellow–yellow)
• Between joint coupler and right handlebar switch cou-
pler.
(yellow–yellow)
• Between right handlebar switch coupler and front
brake light switch connector.
(yellow–yellow)
• Between joint coupler and rear brake light switch cou-
pler.
(yellow–yellow)
• Between joint coupler and tail/brake light coupler.
(yellow–yellow)
4 Defective hydraulic unit assembly If the above items were performed and no malfunctions
were found, replace the hydraulic unit assembly.
Refer to “ABS (ANTI-LOCK BRAKE SYSTEM)” on page
4-44.
Fault code No. 24
Item Brake light switch or tail/brake light
Symptom
Brake light signal is not received properly while the vehicle is travel-
ing (Brake light circuit, or front or rear brake light switch circuit).
Order Item/components and probable cause Check or maintenance job
Fault code No. 31
Item Hydraulic unit assembly (abnormal ABS solenoid power supply)
Symptom
Power is not supplied to the solenoid circuit in the hydraulic unit as-
sembly.
Order Item/components and probable cause Check or maintenance job
1 Blown ABS solenoid fuse Check the ABS solenoid fuse. If the ABS solenoid fuse
is blown, replace the fuse and check the wire harness.
Refer to “CHECKING THE FUSES” on page 8-130.
2 Defective coupler between the battery
and the hydraulic unit assembly • Check the locking condition of the coupler.
• If there is a malfunction, repair it and connect the cou-
pler securely.
See TIP.
3 Open or short circuit in the wire harness
between the battery and the hydraulic unit
assembly • Replace if there is an open or short circuit.
• Between ABS ECU coupler and ABS solenoid fuse.
(red/white–red/white)
4 Defective hydraulic unit assembly If the above items were performed and no malfunctions
were found, replace the hydraulic unit assembly.
Refer to “ABS (ANTI-LOCK BRAKE SYSTEM)” on page
4-44.