Yamaha Tenere 700 2020, Service Manual

Page: 454 / 472

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
9-1
EAS20311
SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
EAS32705
SELF-DIAGNOSTIC FUNCTION TABLE (FOR FUEL INJECTION SYSTEM)
TIP
For details of the fault code, refer to “TROUBLESHOOTING METHOD” on page 8-33.
Fault code
No.
Item
Probable cause of
malfunction
Vehicle symptom
Fail-safe system op-
eration
P0030 O
2
sensor heater (de-
fective heater control-
ler detected)
• Open or short cir-
cuit in wire harness.
• Disconnected cou-
pler.
• Defective O
2
sensor
heater controller.
• Broken or discon-
nected lead in O
2
sensor heater.
(When the O
2
sensor
does not operate be-
cause the exhaust
temperature is low)
Increased exhaust
emissions.
Fuel learning cannot
be carried out.
Display only (If the O
2
sensor does not oper-
ate, O
2
feedback is
not carried out.)
P0107
P0108 [P0107] Intake air
pressure sensor
(ground short circuit
detected)
[P0108] Intake air
pressure sensor
(open or power short
circuit detected) [P0107] Low voltage
of the intake air pres-
sure sensor circuit
(0.2 V or less)
[P0108] High voltage
of the intake air pres-
sure sensor circuit
(4.8 V or more)
• Defective coupler
between intake air
pressure sensor and
ECU.
• Open or short cir-
cuit in wire harness
between intake air
pressure sensor and
ECU.
• Defective intake air
pressure sensor.
• Malfunction in ECU.
Engine idling speed is
high.
Engine idling speed is
unstable.
Engine response is
poor.
Loss of engine power.
Increased exhaust
emissions. Intake air pressure
difference is fixed to 0
[kPa].
α
–N is fixed.
Fuel is not cut off due
to the intake air pres-
sure difference.
Intake air pressure is
fixed to 101.3 [kPa].
O
2
feedback is not
carried out.
ISC feedback is not
carried out.
ISC learning is not
carried out.