Yamaha FJR13AG, Service Manual

Page: 759 / 784

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
(ECU)
9-14
P2195 O
2
sensor (open cir-
cuit detected)
• Signal voltage is
0.25–0.53 V.
• 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.
• 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.
Power is constantly
supplied to the air in-
duction system sole-
noid (air induction
system air is cut off).
Cruise control system
cannot be operated.
P2228
P2229 [P2228] Atmospheric
pressure sensor
(ground short circuit
detected)
[P2229] Atmospheric
pressure sensor
(open or power short
circuit detected) [P2228] Low voltage
of the atmospheric
pressure sensor cir-
cuit (0.5 V or less)
[P2229] High voltage
of the atmospheric
pressure sensor cir-
cuit (4.8 V or more)
• Defective coupler
between atmospher-
ic pressure sensor
and ECU.
• Open or short cir-
cuit in wire harness
between atmospher-
ic pressure sensor
and ECU.
• Improperly installed
atmospheric pres-
sure sensor.
• Defective atmo-
spheric pressure
sensor.
• Malfunction in ECU.
Engine is difficult to
start.
Increased exhaust
emissions.
Insufficient power at
high altitudes.
Engine idling speed is
unstable. α
–N is fixed.
Intake air pressure
difference is fixed to 0
[kPa].
Atmospheric pres-
sure is fixed to 101.3
[kPa].
Atmospheric pres-
sure sensor output
correction value is
fixed to 0.
Fuel is not cut off due
to the intake air pres-
sure difference.
O
2
feedback is not
carried out.
ISC feedback is not
carried out.
ISC learning is not
carried out.
Cruise control system
cannot be operated.
U0125
(FJR13ES
G) Signals cannot be
transmitted between
the ECU and the IMU. • Defective IMU cou-
pler or ECU coupler.
• Open or short cir-
cuit in wire harness
between IMU and
ECU.
• Malfunction in IMU.
• Malfunction in ECU.
Engine cannot be
started. Engine cannot be
started.
U0155 CAN communication
error (with the meter) Communication be-
tween the ECU and
the meter is not possi-
ble • Defective meter cou-
pler and ECU cou-
pler
• Open or short cir-
cuit in the wire har-
ness between the
sensor and the ECU
• Defective meter
• Defective ECU
Perform the checks
and maintenance jobs
for event code number
U0155 (meter dis-
play: Err).
Fault code
No.
Item
Probable cause of
malfunction
Vehicle symptom
Fail-safe system op-
eration