Yamaha MTN1000 2016 Service Manual page 640

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
Fault
Item
code No.
P1400 Air induction system
solenoid (open or
short circuit detected)
P1601 Sidestand switch
(open or short circuit
of the blue/yellow lead
of the ECU is
detected)
P1602 Malfunction in ECU
internal circuit (mal-
function of ECU
power cut-off function)
P1604 [P1604] Lean angle
P1605 sensor (ground short
circuit detected)
[P1605] Lean angle
sensor (open or
power short circuit
detected)
Probable cause of
malfunction
• Open or short cir-
cuit in wire harness.
• Disconnected cou-
pler.
• Defective air induc-
tion system sole-
noid.
• Defective air induc-
tion system sole-
noid controller.
(malfunction in
ECU)
• Defective coupler
between relay unit
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-
cuit in wire harness
between ECU and
battery.
• Open or short cir-
cuit in wire harness
between ECU and
main switch.
• Blown backup fuse.
• Malfunction in ECU.
[P1604] Low voltage
of the lean angle sen-
sor circuit (0.2 V or
less)
[P1605] High voltage
of the lean angle sen-
sor circuit (4.8 V or
more)
• Open or short cir-
cuit in wire harness
between lean angle
sensor and ECU.
• Defective lean angle
sensor.
• Malfunction in ECU.
9-13
Vehicle symptom
Increased exhaust
emissions.
Engine cannot be
started.
Engine idling speed is
unstable.
Engine idling speed is
high.
Increased exhaust
emissions.
Engine is difficult to
start.
Engine cannot be
started.
Fail-safe system
operation
Electric current in air
induction system
solenoid is prohibited
(air induction system
air in).
O feedback is not
2
carried out.
Cruise control system
cannot be operated.
Engine is forcefully
stopped (the injector
output is stopped).
O feedback learning
2
is not carried out.
O feedback learning
2
value is not written.
Cruise control system
cannot be operated.
Engine cannot be
started.