Yamaha MT-09 2021 Service Manual page 650

5. Defective gear position sensor.
• Make sure that the position of each gear is correctly displayed on the meter.
Is check result OK?
YES
→ Go to step 6.
NO
a. Replace the gear position sensor.
Refer to "CRANKCASE" on page 5-63.
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 6.
6. Malfunction in ECU.
• Replace the ECU, and complete the service.
Refer to "REPLACING THE ECU (Engine Control Unit)" on page 8-56.
7. 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.
9-220
P0916, P0917