Self-Diagnostic Function And Diagnostic Code Table; Self-Diagnostic Function Table - Yamaha MBK X-MAX 300 2017 Service Manual

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE

EAS20116
SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
EAS31118

SELF-DIAGNOSTIC FUNCTION TABLE

TIP
For details of the fault code, refer to "TROUBLESHOOTING METHOD" on page 8-33.
Fault code
No.
P0106 Intake air pressure
sensor
(pipes and hoses sys-
tem)
P0107 [P0107] Intake air
P0108 pressure sensor
(open or ground short
circuit detected)
[P0108] Intake air
pressure sensor
(power short circuit
detected)
(no normal signals are
received from the in-
take air pressure sen-
sor)
Probable cause of
Item
malfunction
• Detached throttle
body sensor assem-
bly.
• Improperly installed
throttle body.
• Clogged intake air
pressure sensor
hole.
[P0107] Low voltage
of the intake air pres-
sure sensor circuit
(0.2 V or less)
[P0108] High voltage
of the intake air pres-
sure sensor circuit
(4.9 V or more)
• Defective coupler
between throttle
body sensor assem-
bly and ECU.
• Open or short cir-
cuit in wire harness
between throttle
body sensor assem-
bly and ECU.
• Defective intake air
pressure sensor.
• Malfunction in ECU.
Vehicle symptom
Engine idling speed is
high.
Engine idling speed is
unstable.
Engine response is
poor.
Loss of engine power.
Increased exhaust
emissions.
Engine idling speed is
high.
Engine idling speed is
unstable.
Engine response is
poor.
Loss of engine power.
Increased exhaust
emissions.
9-1
Fail-safe system op-
eration
Intake air pressure
difference is fixed to 0
[kPa].
Load is detected ac-
cording to the throttle
opening.
Intake manifold pres-
sure is calculated us-
ing the throttle
position sensor.
Transient control ac-
cording to the intake
air pressure is not
carried out.
Intake air pressure is
fixed to 101.3 [kPa].
O feedback is not
2
carried out.
Intake air pressure
difference is fixed to 0
[kPa].
Load is detected ac-
cording to the throttle
opening.
Intake manifold pres-
sure is calculated us-
ing the throttle
position sensor.
Transient control ac-
cording to the intake
air pressure is not
carried out.
Intake air pressure is
fixed to 101.3 [kPa].
O feedback is not
2
carried out.