Yamaha MT-03 Service Manual

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7-27FUEL INJECTION SYSTEMD08 Lean angle cut-off switch Displays the lean angle cut-off switch values. Upright: 0.4 ~ 1.4 VOverturned: 3.7 ~ 4.4 VD09 Fuel system voltage (bat-tery voltage)Displays the fuel system voltage (battery voltage).Set the engine stop switch to “ ”.Approximately 12.0 VD20 Sidestand switch Displays that the switch is on or off. (When the gearis in a position other than neutral.)Stand retracted: OnStand extended: OffD21 Neutral switch Displays that the switch is on or off. Neutral: OnIn gear: OffD30Ignition coil The engine stop switch is set to “ ”, the ignitioncoil operates 5 times every second and the enginetrouble warning light comes on.• Connect an ignition checker to the spark plug cap.• If the engine stop switch is set to “ ”, set it to“ ”, and then set it to “ ” again.Check that sparks are generated 5times with the engine stop switch isset to “ ”.D36Fuel injector The engine stop switch is set to “ “, the fuel injec-tor operates 5 times every second and the enginetrouble warning light comes on.• If the engine stop switch is set to “ ”, set it to“ ”, and then set it to “ ” again.Check that the operating sound of thefuel injector is generated 5 timeswhen the engine stop switch is set to“ ”.D48Air induction system The engine stop switch is set to “ ”, the air induc-tion system solenoid operates 5 times every secondand the engine trouble warning light comes on.• If the engine stop switch is set to “ ”, set it to“ ”, and then set it to “ ” again.Check that the operating sound of theair induction system solenoid is gen-erated 5 times when the engine stopswitch is set to “ ”.D50Fuel injection systemrelayThe engine stop switch is set to “ ”, the fuel injec-tion system relay operates 5 times every secondand the engine trouble warning light comes on (onwhen relay is operating, off when relay is not operat-ing).• If the engine stop switch is set to “ ”, set it to“ ”, and then set it to “ ” again.Check that the operating sound of thefuel injection system relay is gener-ated 5 times when the engine stopswitch is set to “ ”.D51Radiator fan motor relay The engine stop switch is set to “ “, the radiatorfan motor relay operates 5 times, 5 seconds eachtime (2 seconds on, 3 seconds off), and the enginetrouble warning light comes on.• If the engine stop switch is set to “ ”, set it to“ ”, and then set it to “ ” again.Check that the operating sound of theradiator fan motor relay is generatedand that the radiator fan motor isoperated 5 times when the enginestop switch is set to “ ”.D52Headlight relay 1 The engine stop switch is set to “ ”, the headlightrelay operates 5 times, 5 seconds each time (2 sec-onds on, 3 seconds off), and the engine troublewarning light comes on.• If the engine stop switch is set to “ ”, set it to“ ”, and then set it to “ ” again.Check that the operating sound of theheadlight relay is generated and thatthe headlight comes on 5 times whenthe engine stop switch is set to “ ”.D60E2PROM fault code dis-play• Transmits the abnormal portion of the data in theE2PROM that has been detected as fault code 44.01“00” is displayed when there is nomalfunction.D61Malfunction history codedisplay• Displays the codes of the history of the self-diag-nosis malfunctions (i.e., a code of a malfunctionthat occurred once and which has been corrected).• If multiple malfunctions have been detected, differ-ent codes are displayed at 2-second intervals, andthis process is repeated.12 ~ 61“00” is displayed when there is nomalfunction.D62Malfunction history codeerasure• Displays the total number of codes that are beingdetected through self diagnosis and the fault codesin the past history.• Erases only the history codes when the enginestop switch is set to “ ”. If the engine stop switchis set to “ ”, set it to “ ”, and then set it to “ ”again.00 ~ 17“00” is displayed when there is nomalfunction.D70 Control number • Displays the program control number. 00 ~ 255Diagnosticcode Item Action Data displayed on theFI diagnostic tool (reference value)