Yamaha MT-09 2021 Service Manual page 634

4. "03" is indicated in diagnostic mode (code D60). EEPROM data error for adjustment of CO concen-
tration of cylinder #3.
• Change the CO concentration of cylinder #3, and rewrite in EEPROM.
Refer to "ADJUSTING THE EXHAUST GAS VOLUME" on page 3-11.
• After this adjustment is made, turn the main switch to "OFF".
• 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
a. Repeat step 1.
b. If the same number is indicated, go to item 6.
5. Except "00-03" is indicated in diagnostic mode Code 600). EEPROM data error for corresponding
learning/memory values.
• Turn the main switch to "OFF".
• 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
a. Repeat step 1.
b. If the same number is indicated, go to item 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.
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