List Of Self-Diagnostic And Fail-Safe Actions - Yamaha WR250F Owner's Service Manual

LIST OF SELF-DIAGNOSTIC AND FAIL-SAFE ACTIONS

LIST OF SELF-DIAGNOSTIC AND FAIL-SAFE ACTIONS
EAS2GB2426
LIST OF DIAGNOSTIC CODES
Fault
code
12 Crankshaft position sensor: no normal signals are received from the
crankshaft position sensor.
13 Intake air pressure sensor: open or short circuit detected.
14 Intake air pressure sensor: hose system malfunction (clogged or de-
tached hose)
15 Throttle position sensor: open or short circuit detected.
16 Throttle position sensor: stuck throttle position sensor is detected.
21 Coolant temperature sensor: open or short circuit detected.
22 Intake air temperature sensor: open or short circuit detected.
30 Latch up detected.
33 Ignition coil: open or short circuit detected in the primary lead of the
ignition coil.
39 Injector: open or short circuit detected.
41 Lean angle sensor: open or short circuit detected.
43 Fuel system voltage: incorrect voltage supplied to the fuel injector and
fuel pump.
44 EEPROM fault code number: an error is detected while reading or
writing on EEPROM.
46 Charging voltage is abnormal.
50 Faulty ECU memory. (When this malfunction is detected in the ECU,
the fault code number might not appear on the meter.)
COMMUNICATION ERROR WITH YAMAHA DIAGNOSTIC TOOL
Fault
code
Waiting No communication signal is received from the ECU.
for con-
nection
Er-2 Signals from the ECU cannot be received within the specified period
of time.
Er-3 Data from the ECU cannot be received correctly.
Er-4 Registered data cannot be received from the Yamaha diagnostic tool.
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