Yamaha FJR13AG Service Manual page 752

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
Fault code
Item
No.
P0117 [P0117] Coolant tem-
P0118 perature sensor
(ground short circuit
detected)
[P0118] Coolant tem-
perature sensor (open
or power short circuit
detected)
P0122 [P0122, P0222] Throt-
P0123 tle position sensor
P0222 (ground short circuit
P0223 detected)
P2135 [P0123, P0223] Throt-
tle position sensor
(open or power short
circuit detected)
[P2135] Deviation er-
ror
Probable cause of
malfunction
[P0117] Low voltage Engine is difficult to
of the coolant tem- start.
perature sensor circuit Increased exhaust
(0.1 V or less) emissions.
[P0118] High voltage Engine idling speed is
of the coolant tem- unstable.
perature sensor circuit
(4.9 V or more)
• Defective coupler
between coolant
temperature sensor
and ECU.
• Open or short cir-
cuit in wire harness
between coolant
temperature sensor
and ECU.
• Improperly installed
coolant temperature
sensor.
• Defective coolant
temperature sensor.
• Malfunction in ECU.
[P0122, P0222] Low Engine idling speed is
voltage of the throttle high.
position sensor circuit Engine idling speed is
(0.25 V or less) unstable.
[P0123, P0223] High Engine response is
voltage of the throttle poor.
position sensor circuit Loss of engine power.
(4.75 V or more) Deceleration is poor.
• Defective coupler Increased exhaust
between throttle po- emissions.
sition sensor and Vehicle cannot be
ECU. driven.
• 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.
9-7
Fail-safe system op-
Vehicle symptom
The radiator fan motor
relay is on only when
the vehicle is traveling
at low speeds.
O
2
carried out.
ISC feedback is not
carried out.
ISC learning is not
carried out.
The coolant tempera-
ture is fixed to 60 [°C].
Cruise control system
cannot be operated.
Change in the throttle
opening is 0 (transient
control is not carried
out).
D–j is fixed.
Throttle opening is
fixed to 125 [°].
O
2
carried out.
Fuel is not cut off due
to the throttle open-
ing.
Output is restricted.
Power is constantly
supplied to the air in-
duction system sole-
noid (air induction
system air is cut off).
ISC feedback is not
carried out.
ISC learning is not
carried out.
Cruise control system
cannot be operated.
(ECU)
eration
feedback is not
feedback is not