Yamaha MT-09 2021 Service Manual page 675

Ground short circuit check "A"
Between shift sensor coupler "1" and ground
Lines short circuit check "B"
Shift sensor coupler "1"
ECU coupler "2"
Joint coupler "3"
A
1
B V L
*. MTN890
**. MTN890D
Is resistance ∞ Ω?
YES
→ Go to step 4.
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 step 4.
4. Installed condition of shift sensor.
• Check for looseness or pinching.
B
1
B V L
3
L/W W L/W W B B L/B L/B Y/B Y/B
B B/L B B B B B B/L L/R L/R L/R L/R
9-245
violet–ground
blue–ground
black–any other coupler terminal
violet–any other coupler terminal
blue–any other coupler terminal
black/blue–any other coupler terminal
violet–any other coupler terminal
blue–any other coupler terminal
black/blue–any other coupler terminal
black–any other coupler terminal
*
2
L/B
L/W
**
2
L/B
L/W
P1806, P1807
Y/L Lg/L P/W P V L L
B/Y G/L Gy/G Br/W B/L B/L
L/Y L/W G/W G/W W/G
Y/L O/W Lg/L P/W P V L L
B/Y Br/L G/L Gy/G Br/W B/L B/L
L/Y L/W Lg/B G/W G/W W/G
Gy
W/Y
Gy
W/Y