Yamaha FJR13AG Service Manual page 757

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
Fault code
Item
No.
P0657 Fuel system voltage
(incorrect voltage sup-
plied to the fuel injec-
tor and fuel pump)
P1400 Air induction system
solenoid (open or
short circuit detected)
P1600 Signals cannot be
(FJR13ES transmitted between
G) the ECU and the IMU.
P1601 Sidestand switch
(open or short circuit
of the black/red lead
of the ECU is detect-
ed)
P1602 Malfunction in ECU
internal circuit (mal-
function of ECU pow-
er cut-off function)
Probable cause of
malfunction
• Open or short cir- Engine is difficult to
cuit in wire harness start.
between relay unit Increased exhaust
and ECU. emissions.
• Open circuit in wire
harness between
battery and ECU.
• Defective relay unit.
• Malfunction in ECU.
• Open circuit in wire Increased exhaust
harness. emissions.
• Disconnected cou-
pler.
• Defective air induc-
tion system sole-
noid.
• Defective driver
(malfunction in
ECU).
• Open or short cir- Engine cannot be
cuit in wire harness. started.
• Malfunction in IMU.
• Malfunction in ECU.
• Defective coupler Engine cannot be
between relay unit started.
and ECU.
• Open or short cir-
cuit in wire harness
between relay unit
and ECU.
• Defective coupler
between sidestand
switch and relay
unit.
• Open or short cir-
cuit in wire harness
between sidestand
switch and relay
unit.
• Defective sidestand
switch.
• Malfunction in ECU.
• Open or short cir- Engine idling speed is
cuit in wire harness unstable.
between battery and Engine idling speed is
ECU. high.
• Open or short cir- Increased exhaust
cuit in wire harness emissions.
between main Engine is difficult to
start.
switch and ECU.
• Blown backup fuse.
• Malfunction in ECU.
9-12
Fail-safe system op-
Vehicle symptom
Monitor voltage = 12
[V]
O
2
carried out.
Cruise control system
cannot be operated.
No power is supplied
to the air induction
system solenoid (air
induction system air is
supplied).
O
2
carried out.
Engine cannot be
started.
Engine is forcefully
stopped (the injector
output is stopped).
O
2
is not carried out.
O
2
value writing error.
Cruise control system
cannot be operated.
(ECU)
eration
feedback is not
feedback is not
feedback learning
feedback learning