Yamaha TMAX 2020 Service Manual

9-166U0155 or ErrEAS20649U0155 or ErrEAS33129TROUBLESHOOTINGItemMulti-function meter: signals cannot be transmitted between the ECU and the multi-function meter.Fail-safe system• Able to start engine• Able to drive vehicleProcedureTIP“Err” is displayed on the clock display of the multi-function meter, but the MIL does not come on.1. Connection of meter assembly coupler.• Check the locking condition of the coupler.• Disconnect the coupler and check the pins (bent or broken terminals and locking condition of thepins).2. Connection of ECU coupler.• Check the locking condition of the coupler.• Disconnect the coupler and check the pins (bent or broken terminals and locking condition of thepins).Is the coupler condition normal?YES Go to step 2.NOa. Connect the coupler securely or replace the wire harness.b. Push the ON/start switch, and then check the condition of the DTC using the malfunction modeof the YDT.Is it in the “Recovered” condition?YES Go to step 6, and complete the service.NO Go to step 2.Is the coupler condition normal?YES Go to step 3.NOa. Connect the coupler securely or replace the wire harness.b. Push the ON/start switch, and then check the condition of the DTC using the malfunction modeof the YDT.Is it in the “Recovered” condition?YES Go to step 6, and complete the service.NO Go to step 3.