Yamaha XSR 900 2022 Service Manual page 472

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
DTC Item
P0916 [P0916] Gear posi-
P0917 tion sensor: open or
short to ground cir-
cuit is detected.
Normal signal is not
received from the
gear position sensor
to ECU.
[P0917] Gear posi-
tion sensor: short to
power circuit is de-
tected. Normal sig-
nal is not received
from the gear posi-
tion sensor to ECU.
P1004 Intake air pressure
sensor 1 and intake
air pressure sensor
2: When the main
switch is "ON", the
standard voltage
values of Intake air
pressure sensor 1
and intake air pres-
sure sensor 2 are
large different.
Probable cause of
malfunction
[P0916] Low voltage
of the gear position
sensor circuit (0.2 V
or less)
[P0917] High volt-
age of the gear posi-
tion sensor circuit
(4.8 V or more)
• Defective coupler
between gear po-
sition sensor and
ECU.
• Open or power
short circuit in wire
harness between
gear position sen-
sor and ECU.
• Poor circuit conti-
nuity in wire har-
ness between
gear position sen-
sor and ECU.
• Improperly in-
stalled gear posi-
tion sensor.
• Defective gear po-
sition sensor.
• Malfunction in
ECU.
• Intake air pressure
sensor 1 hose or
intake air pressure
sensor 2 hose is
detached,
clogged, twisted or
bent.
• Defective intake
air pressure sen-
sor 1 or intake air
pressure sensor 2.
• Malfunction in
ECU.
9-66
Vehicle symptom
Improper display for
gear position.
Engine response is
poor.
Engine is difficult to
start.
Engine idling speed
is unstable.
Increased exhaust
emissions.
Loss of engine pow-
er.
Fail-safe system
operation
Maintains the gear
position value at the
previous value.
Quick shift system is
not carried out.
Cruise control fixed
to OFF.
Intake air pressure
is fixed to 101.3
[kPa].
Intake air pressure
difference is fixed to
0 [kPa].
Atmospheric pres-
sure is fixed to
101.3 [kPa].
α–N is fixed.
Fuel is not cut off
due to the intake air
pressure difference.
O feedback is not
2
carried out.
ISC feedback is not
carried out.
ISC learning is not
carried out.
Cruise control fixed
to OFF.