Yamaha MT-09 2021 - Page 586

9-156
P0351
• 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”
Lines short circuit check “B”
Is resistance 0 Ω?
YES
→ Go to “Short circuit check”.
NO
a. Replace the wire harness.
b. Start the engine and let it idle for approximately 5 seconds.
c. 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”.
Between cylinder-#1 ignition coil coupler “1” and
ground
orange–ground
Cylinder-#1 ignition coil coupler “1” orange–any other coupler terminal
ECU coupler “2” orange–any other coupler terminal
O
R/W
O Gy/RO/GP/BY/R
B
R/BG/BL/BLg/R
B
G/YR/L
B/WB/WR/LL/WY/BY/RR/G
21
O
R/W
O
R/W
11
O Gy/RO/GP/BY/R
B
R/BG/BL/BLg/R
B
G/YR/L
B/WB/WR/LL/WY/BY/RR/G
2
BA