Yamaha TMAX 2020 Service Manual page 610

EAS20676
P0601
EAS33305
TROUBLESHOOTING
Item
Internal malfunction in ECU. (When this malfunction is detected in the ECU, the DTC might not appear
on the tool display.)
Fail-safe system
• Unable to start engine
• Unable to drive vehicle
Procedure
1. Malfunction in ECU.
• Replace the ECU.
Refer to "REPLACING THE ECU (Engine Control Unit)" on page 8-93.
• Push the ON/start switch.
• Check that the MIL does not come on.
9-136
P0601