Yamaha YZ 2019 Series, Owner'S Service Manual

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LIST OF SELF-DIAGNOSTIC AND FAIL-SAFE ACTIONS
9-4
EAM20156
LIST OF SELF-DIAGNOSTIC AND FAIL-SAFE ACTIONS
EAM30365
LIST OF DIAGNOSTIC CODES
EAM30366
COMMUNICATION ERROR WITH YAMAHA DIAGNOSTIC TOOL
Fault code Item Page
12
Crankshaft position sensor: no normal signals are received from the crank-
shaft position sensor.
8-25
13 Intake air pressure sensor: open or short circuit detected. 8-26
14
Intake air pressure sensor: hose system malfunction (clogged or detached
hose).
8-27
15 Throttle position sensor: open or short circuit detected. 8-28
16 Throttle position sensor: stuck throttle position sensor is detected. 8-30
21 Coolant temperature sensor: open or short circuit detected. 8-31
22 Intake air temperature sensor: open or short circuit detected. 8-32
30 Latch up detected. 8-33
33
Ignition coil: open or short circuit detected in the primary lead of the ignition
coil.
8-34
39 Injector: open or short circuit detected. 8-35
41 Lean angle sensor: open or short circuit detected. 8-36
43
Fuel system voltage: incorrect voltage supplied to the fuel injector and fuel
pump.
8-37
44
EEPROM fault code number: an error is detected while reading or writing on
EEPROM.
8-38
46 Charging voltage is abnormal. 8-39
50 Faulty ECU memory. 8-39
Fault code Item Page
Waiting for
connection No communication signal is received from the ECU.
8-40
Er-2 Signals from the ECU cannot be received within the specified period of time. 8-41
Er-3 Data from the ECU cannot be received correctly. 8-42
Er-4 Registered data cannot be received from the Yamaha diagnostic tool. 8-43