Yamaha TMAX 2020 Service Manual

9-100P0201• Short circuit checkTIPDisconnect the ECU related connectors before checking.Refer to “PARTS CONNECTED TO THE ECU” on page 9-3.Ground short circuit check “A”Lines short circuit check “B”5. Malfunction in ECU.• Replace the ECU, and complete the service.Refer to “REPLACING THE ECU (Engine Control Unit)” on page 8-93.6. Delete the DTC and check that the MIL goes off.• Start the engine and let it idle for approximately 5 seconds.• Confirm that the DTC has a condition of “Recovered” using the malfunction mode of the YDT, andthen delete the DTC.Between injector #1 coupler “1” and ground red/black–groundred/blue–groundInjector #1 coupler “1” red/black–any other coupler terminalred/blue–any other coupler terminalECU coupler “2” red/black–any other coupler terminalFuel injection system relay coupler “3” red/blue–any other coupler terminalIs resistance  ?YES Go to step 5.NOa. Replace the wire harness.b. Execute the diagnostic mode. (Code D36)Is it hear operating sound?YES Go to step 6.NO Go to step 5.OB/GY/RBR/BG/BY/WBY/RR/LBBR/LL/YY/WRRR/LR/B L/YR/L R/BR/L R/BA B1123