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FI
Fault
codeNo.
Symptom Diagnostic code
12
13
14
15
16
19
22
24
28
30
33
37
39
41
42
43
44
46
50
61
No normal signals are received from
the crankshaft position sensor.
Intake air pressure sensor-open or
short circuit detected.
Faulty intake air pressure sensor
system
Throttle position sensor-open or
short circuit detected.
A stuck throttle position sensor is
detected.
Open circuit in the input line
(sidestand lead) of ECU is detected
when the start switch is pressed.
Intake air temperature sensor-open
or short circuit detected.
No normal signal is received from
the O
2
sensor.
Engine temperature sensor-open
or short circuit detected.
The vehicle has overturned.
Open circuit is detected in the pri-
mary lead of the ignition coil.
The ISC (idle speed control) valve
is stuck fully open.
Fuel injector open or short circuit is
detected.
Lean angle cut-off switch-open or
short circuit detected.
No normal signals are received from
the speed sensor.
Power supply to the fuel injector, fuel
pump and ignition coil are not nor-
mal.
An error is detected while reading
or writing on EEPROM.
Power supply to Fl system is not
normal.(red lead)
Faulty ECU memory. When this mal-
function is detected, the code num-
ber might not appear on the engine
trouble warning light or displayed on
Fl diagnostic tool.
ISC (idle speed control) valve open
or short circuit is detected.
• Open or short circuit in wiring harness.
• Defective crankshaft position sensor.
• Malfunction in pickup rotor.
• Improperly installed sensor lead connector in the
coupler.
• Open or short circuit in wiring sub lead.
• Open orshort circuit in wiring harness.
• Defective intake air pressure sensor.
• Improperly installed sendor lead connector in the
coupler.
• Intake air pressure sensor is disconnected, or
clogged.
• Open or short circuit in wiring sub lead.
• Open or short circuit in wiring harness.
• Defective throttle position sensor.
• Improperly installed throttle’position sensor lead con-
nector in the coupler.
• Stuck throttle position sensor.
• Defective throttle position sensor.
• Open circuit in wiring harness (ECU coupler).
• Open or short circuit in wire sub lead.
• Open or short circuit in wiring harness.
• Defective intake temperature sensor.
• Improperly installed sensor lead connector in the
coupler.
• Open or short circuit in wiring harness.
• Defective O
2
sensor.
• Improperly installed sensor.
• Open or short circuit in wiring harness.
• Defective engine temperature sensor.
• Improperly installed lead connector in the coupler.
• Overturned condition.
• Open circuit in wiring harness.
• Malfunction in ignition coil.
• Improperly installed primary lead connector in the
coupler.
• Malfunction in throttle body.
• Malfunction in throttle cables.
• ISC (idle speed control) valve is stuck fully open.
• Open or short circuit in wiring harness.
• Defective fuel injector.
• Improperly installed lead connector in the coupler.
• Open or short circuit in wiring harness.
• Defective lean angle cut-off switch.
• Improperly installed lead connector in the coupler.
• Open or short circuit in wiring harness.
• Defective speed sensor.
• Improperly installead lead connector in the coupler.
• Open or short circuit in wiring harness.
• Malfunction in ECU. (The CO adjustment value, code
reregistering key code, and throttle valve fully closed
notification value are not properly written on or read
from the internal memory.)
• Malfunction in charging system.
• Malfunction in ECU. (The program and data are not
properly written on or read from the internal memory.)
• Open or short circuit in wiring harness.
• Improperly installed lead connector in the coupler.
Fault code table
Probable cause of malfunction
_
D03
D03
D01
D01
D20
D05
_
D11
D08
D30
D54
D36
D08
D07
D09
D60
_
_
D54
FUEL INJECTION SYSTEM
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