Yamaha MT-09 2021 Service Manual page 559

Is check result OK?
YES
→ Go to step 7.
NO
a. Replace the throttle position sensor.
Refer to "ADJUSTING THE THROTTLE POSITION SENSOR" on page 7-11.
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 8, and complete the service.
NO
→ Go to step 7.
7. Malfunction in ECU.
• Replace the ECU, and complete the service.
Refer to "REPLACING THE ECU (Engine Control Unit)" on page 8-56.
8. Delete the DTC and check that the MIL goes off.
• Confirm that the DTC has a condition of "Recovered" using the YDT, and then delete the DTC.
P0122, P0123, P0222, P0223, P2135
9-129