Yamaha MT-09 2021 - 33_Abs; Troubleshooting

9-286
33_ABS
EAS20692
33_ABS
EAS33322
TROUBLESHOOTING
Item
Hydraulic unit assembly (abnormal ABS motor power supply)
Procedure
1. Blown ABS motor fuse
• Check the ABS motor fuse.
Refer to “CHECKING THE FUSES” on page 8-55.
2. Defective coupler between the battery and the hydraulic unit assembly
• Check the coupler for any pins that may be pulled out.
• Check the locking condition of the coupler.
TIP
Turn the main switch to “OFF” before disconnecting or connecting a coupler.
3. Wire harness continuity
• Disconnect the ABS motor fuse “1” and ABS ECU coupler “2”.
• Open circuit check
Is check result OK?
YES
→ Go to step 2.
NO
→ Replace the fuse and check the wire harness.
Is check result OK?
YES
→ Go to step 3.
NO
→ If there is a malfunction, repair it and connect the coupler securely.
Between ABS motor fuse “1” and ABS ECU
coupler “2”
red–red/white
Is resistance 0 Ω?
YES
→ Go to “Short circuit check”.
NO
→ Replace the wire harness.
R
L/W
B
B/W
W/G
GYL
R/B
Br
L/W
G/O W/Y
LBWY L/B
2
1