Yamaha Tenere 700 2020, Service Manual

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SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
9-3
P0122
P0123 [P0122] Throttle posi-
tion sensor (open or
ground short circuit
detected)
[P0123] Throttle posi-
tion sensor (power
short circuit detected) [P0122] Low voltage
of the throttle position
sensor circuit (0.2 V
or less)
[P0123] High voltage
of the throttle position
sensor circuit (4.8 V
or more)
• Defective coupler
between throttle po-
sition sensor and
ECU.
• Open or short cir-
cuit in wire harness
between throttle po-
sition sensor and
ECU.
• Improperly installed
throttle position sen-
sor.
• Defective throttle po-
sition sensor.
• Malfunction in ECU.
Engine idling speed is
high.
Engine idling speed is
unstable.
Engine response is
poor.
Loss of engine power.
Deceleration is poor.
Increased exhaust
emissions.
Vehicle cannot be
driven. Change in the throttle
opening is 0 (transient
control is not carried
out).
D–j is fixed.
Throttle opening is
fixed to 125 [°].
Estimated atmospher-
ic pressure is fixed to
101.3 [kPa].
O
2
feedback is not
carried out.
Fuel is not cut off due
to the throttle open-
ing.
Output is restricted.
ISC feedback is not
carried out.
ISC learning is not
carried out.
P0132 O
2
sensor (short cir-
cuit detected (power
short circuit))
[P0132] High voltage
of the O
2
sensor cir-
cuit (4.8 V or more)
• Improperly installed
O
2
sensor.
• Defective coupler
between O
2
sensor
and ECU.
• Open or short cir-
cuit in wire harness
between O
2
sensor
and ECU.
• Incorrect fuel pres-
sure.
• Defective O
2
sensor.
• Malfunction in ECU.
Increased exhaust
emissions. O
2
feedback is not
carried out.
O
2
feedback learning
is not carried out.
P0201
P0202 [P0201] Fuel injector
#1 (malfunction in fuel
injector #1)
[P0202] Fuel injector
#2 (malfunction in fuel
injector #2) • Defective coupler
between injector
and ECU.
• Open or short cir-
cuit in wire harness
between injector
and ECU.
• Defective injector.
• Malfunction in ECU.
• Improperly installed
injector.
Loss of engine power.
Engine is difficult to
start.
Engine cannot be
started.
Engine stops.
Engine idling speed is
unstable.
Increased exhaust
emissions. O
2
feedback is not
carried out.
ISC feedback is not
carried out.
ISC learning is not
carried out.
Injection to the appli-
cable cylinder group is
cut off.
Fault code
No.
Item
Probable cause of
malfunction
Vehicle symptom
Fail-safe system op-
eration