Yamaha MT-09 2021 - Page 741

9-311
91_ABS
• Short circuit check
TIP
Disconnect the ABS ECU related connectors before checking.
Refer to “PARTS CONNECTED TO THE ABS ECU” on page 9-4.
Ground short circuit check “A”
Lines short circuit check “B”
3. Defective IMU
• Replace the IMU, and check again.
Is resistance 0 Ω?
YES
→ Go to “Short circuit check”.
NO
→ Replace the wire harness.
Between IMU coupler “1” and ground
blue/white–ground
blue/black–ground
Between ABS ECU coupler “3” and ground
blue/white–ground
blue/black–ground
IMU coupler “1”
blue/white–any other coupler terminal
blue/black–any other coupler terminal
Joint coupler “2”
blue/white–any other coupler terminal
blue/black–any other coupler terminal
ABS ECU coupler “3”
blue/white–any other coupler terminal
blue/black–any other coupler terminal
Is resistance ∞ Ω?
YES
→ Go to step 3.
NO
→ Replace the wire harness.
R/WL/BL/WB/W R/WL/BL/WB/W
R
L/W
B
B/W
W/G
GYL
R/B
Br
L/W
G/O W/Y
LBWY L/B
R
L/W
B
B/W
W/G
GYL
R/B
Br
L/W
G/O W/Y
LBWY L/B
L/W WW L/W BB L/B L/B Y/B Y/B
L/R L/R L/RL/RB/L
B B/L BBBBB
1
1
2
3
3
A
B