Self Diagnostic - Yamaha YZF-R1 2020 Service Manual

SELF-DIAGNOSTIC FUNCTION..................................................................... 9-1
GLOSSARY............................................................................................... 9-1
OUTLINE ...................................................................................................9-1
CHECKING THE WARNING LIGHT .........................................................9-1
YDT ...........................................................................................................9-2
PARTS CONNECTED TO THE ECU ........................................................9-3
PARTS CONNECTED TO THE SCU (for YZF-R1M)................................9-3
PARTS CONNECTED TO THE ABS ECU................................................ 9-4
PRECAUTIONS FOR ROAD TEST .......................................................... 9-4
SYSTEM DIAGRAM ........................................................................................9-5
ECU CIRCUIT DIAGRAM..........................................................................9-5
ECU COUPLER LAYOUT ......................................................................... 9-8
FUEL INJECTION SYSTEM..........................................................................9-11
CIRCUIT DIAGRAM ................................................................................ 9-11
BASIC PROCESS FOR TROUBLESHOOTING ..................................... 9-13
[A] THE MIL COMES ON/FLASHES AND ENGINE OPERATION IS
NOT NORMAL........................................................................................ 9-14
[B] THE MIL DOES NOT COME ON, BUT THE ENGINE OPERATION
IS NOT NORMAL ...................................................................................9-14
IMMOBILIZER SYSTEM................................................................................ 9-15
CIRCUIT DIAGRAM ................................................................................ 9-15
SYSTEM OUTLINE ................................................................................. 9-17
PART REPLACEMENT AND KEY CODE REGISTRATION
REQUIREMENTS...................................................................................9-17
TROUBLESHOOTING ............................................................................9-21
HOW TO CHECK DTC............................................................................9-22
ABS (Anti-lock Brake System) .................................................................... 9-23
CIRCUIT DIAGRAM ................................................................................ 9-23
ABS COMPONENTS CHART .................................................................9-25
ABS COUPLER LOCATION CHART ......................................................9-26
MAINTENANCE OF THE ABS ECU .......................................................9-27
ABS TROUBLESHOOTING OUTLINE....................................................9-27
BASIC INSTRUCTIONS FOR TROUBLESHOOTING ............................ 9-28
[A] CHECKING THE ABS WARNING LIGHT..........................................9-30
[A-1] ONLY THE ABS WARNING LIGHT FAILS TO COME ON............. 9-30
[A-2] ALL INDICATOR LIGHTS FAIL TO COME ON ..............................9-30
[A-3] THE ABS WARNING LIGHT COMES ON ...................................... 9-30
[A-4] ONLY THE ABS ECU FAILS TO COMMUNICATE ........................ 9-30
[A-5] ABS ECU AND FI ECU FAIL TO COMMUNICATE ........................ 9-31
[B-1] MALFUNCTION ARE CURRENTLY DETECTED .......................... 9-31
[B-2] DIAGNOSIS USING THE DTC .......................................................9-31
[B-3] DELETING THE DTC ..................................................................... 9-32
[C-1] FINAL CHECK ................................................................................ 9-32

SELF DIAGNOSTIC

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