Yamaha MT-09 2021 Service Manual page 519

Between ignition fuse 1 "4" coupler and IMU
coupler "3"
Between IMU coupler "3" and joint coupler "2"
Between IMU coupler "3" and joint coupler "2"
Between IMU coupler "3" and ground
4
2
L/W W L/W W
B B/L B B B B B
*. MTN890
**. MTN890D
Is resistance 0 Ω?
YES
→ Go to "Short circuit check".
NO
a. Replace the wire harness.
b. Turn the main switch to "ON", and then check the condition of the DTC using the malfunction
mode of the YDT.
Is it in the "Recovered" condition?
YES
→ Go to step 7, and complete the service.
NO
→ Go to "Short circuit check".
• Short circuit check
TIP
Disconnect the ECU related connectors before checking.
Refer to "PARTS CONNECTED TO THE ECU" on page 9-4.
Ground short circuit check "A"
Between ECU coupler "1" and ground
Between IMU coupler "3" and ground
3
B/W L/W L/B R/W
B B L/B L/B Y/B Y/B
B/L L/R L/R L/R L/R
red/white–red/white
blue/white–blue/white
blue/black–blue/black
blue/white–blue/white
blue/black–blue/black
black/white–ground
*
1
L/B Y/L
L/W B/Y
L/Y L/W
**
1
L/B Y/L
L/W B/Y
L/Y L/W
blue/black–ground
blue/white–ground
blue/black–ground
blue/white–ground
red/white–ground
9-89
Lg/L P/W P V L L Gy
G/L Gy/G Br/W B/L B/L
G/W G/W W/G W/Y
O/W Lg/L P/W P V L L Gy
Br/L G/L Gy/G Br/W B/L B/L
Lg/B G/W G/W W/G W/Y
C0520