Yamaha MT-09 2021 - Self Diagnostic

9
SELF DIAGNOSTIC
SELF-DIAGNOSTIC FUNCTION.....................................................................9-1
GLOSSARY...............................................................................................9-1
OUTLINE ...................................................................................................9-1
CHECKING THE WARNING LIGHT .........................................................9-2
YDT ...........................................................................................................9-3
PARTS CONNECTED TO THE ECU ........................................................9-4
PARTS CONNECTED TO THE ABS ECU................................................9-4
PRECAUTIONS FOR ROAD TEST ..........................................................9-4
COPE WITH THE MIL FLASHING ............................................................9-4
SYSTEM DIAGRAM ........................................................................................9-5
ECU CIRCUIT DIAGRAM..........................................................................9-5
ECU COUPLER LAYOUT .........................................................................9-8
FUEL INJECTION SYSTEM..........................................................................9-12
CIRCUIT DIAGRAM ................................................................................9-12
BASIC PROCESS FOR TROUBLESHOOTING .....................................9-16
[A] THE MIL COMES ON/FLASHES AND ENGINE OPERATION IS
NOT NORMAL........................................................................................9-17
[B] THE MIL DOES NOT COME ON, BUT THE ENGINE
OPERATION IS NOT NORMAL .............................................................9-17
IMMOBILIZER SYSTEM................................................................................9-18
CIRCUIT DIAGRAM ................................................................................9-18
SYSTEM OUTLINE .................................................................................9-22
PART REPLACEMENT AND KEY CODE REGISTRATION
REQUIREMENTS...................................................................................9-23
TROUBLESHOOTING ............................................................................9-26
HOW TO CHECK DTC............................................................................9-27
CRUISE CONTROL SYSTEM (for MTN890D) .............................................9-28
CIRCUIT DIAGRAM ................................................................................9-28
CRUISE CONTROL CIRCUIT OPERATION...........................................9-30
BASIC INSTRUCTIONS FOR TROUBLESHOOTING ............................9-31
BASIC PROCESS FOR TROUBLESHOOTING .....................................9-32
[A] CHECKING THE CRUISE CONTROL SYSTEM INDICATOR
LIGHT .....................................................................................................9-33
[B-1] DIAGNOSIS USING THE DTC .......................................................9-33
[B-2] DIAGNOSIS USING THE MALFUNCTION HISTORY CODES......9-33
[B-3] MALFUNCTION HISTORY IS NOT DISPLAYED...........................9-33
[C-1] ERASING THE DTC .......................................................................9-34
[C-2] FINAL CHECK ................................................................................9-34