Yamaha 2009 XP500Y TMAX Service Manual page 333

8. Turn the main switch to "OFF" to cancel the diagnostic mode.
Diagnostic code table
Fault
code Symptom
No.
No normal signals are re-
12 ceived from the crankshaft
position sensor.
Intake air pressure sensor:
13 open or short circuit detect-
ed.
Intake air pressure sensor:
hose system malfunction
14
(clogged or detached
hose).
Throttle position sensor:
15 open or short circuit detect-
ed.
Stuck throttle position sen-
16
sor detected.
A break or disconnection of
the blue/black lead of the
19
ECU (engine control unit) is
detected.
Coolant temperature sen-
21 sor: open or short circuit
detected.
Intake air temperature sen-
22 sor: open or short circuit
detected.
No normal signal is re-
24
ceived from the O
Latch up detected.
No normal signal is re-
30
ceived from the lean angle
sensor.
Malfunction detected in the
33 primary wire of the ignition
coil.
Probable cause of malfunction
• Open or short circuit in wire harness.
• Defective crankshaft position sensor.
• Malfunction in generator rotor.
• Malfunction in ECU (engine control unit).
• Improperly installed sensor.
• Open or short circuit in wire harness.
• Defective intake air pressure sensor.
• Malfunction in ECU (engine control unit).
• Intake air pressure sensor hose is de-
tached, clogged, kinked, or pinched.
• Malfunction of the intake air pressure sen-
sor in the intermediate electrical potential.
• Malfunction in ECU (engine control unit).
• Open or short circuit in wire harness.
• Defective throttle position sensor.
• Malfunction in ECU (engine control unit).
• Improperly installed throttle position sensor.
• Stuck throttle position sensor.
• Malfunction in ECU (engine control unit).
• Open or short circuit in wire harness.
• Malfunction in ECU (engine control unit).
• Open or short circuit in wire harness.
• Defective coolant temperature sensor.
• Malfunction in ECU (engine control unit).
• Improperly installed coolant temperature
sensor.
• Open or short circuit in wire harness.
• Defective intake temperature sensor.
• Malfunction in ECU (engine control unit).
• Improperly installed intake air temperature
sensor.
• Open or short circuit in wire harness.
• Defective O
sensor.
• Malfunction in ECU (engine control unit).
2
• Improperly installed O
• The vehicle has overturned.
• Defective lean angle sensor.
• Malfunction in ECU (engine control unit).
• Improperly installed lean angle sensor.
• Open or short circuit in wire harness.
• Malfunction in ignition coil.
• Malfunction in ECU (engine control unit).
• Malfunction in a component of ignition cut-
off circuit system.
8-36
FUEL INJECTION SYSTEM
sensor.
2
sensor.
2
Diagnostic
code No.
—
03
03
01
01
20
06
05
—
08
30