Yamaha MT-09 2021 Service Manual page 500

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
DTC Item
P2158 Front wheel sensor:
no normal signals
are received from
the front wheel sen-
sor.
P2195 O sensor: open cir-
2
cuit detected.
U0125 Signals cannot be
transmitted between
the ECU and the
IMU.
Probable cause of
malfunction
• Open or short cir-
cuit in wire har-
ness between
front wheel sensor
and ABS ECU.
• Defective front
wheel sensor.
• Malfunction in
ABS ECU.
• Malfunction in
ECU.
• Low voltage of the
O sensor circuit
2
(0.18–0.49 V).
• Improperly in-
stalled O sensor.
2
• Defective coupler
between O sen-
2
sor and ECU.
• Open or short cir-
cuit in wire har-
ness between O
2
sensor and ECU.
• Incorrect fuel pres-
sure.
• Defective O sen-
2
sor.
• Malfunction in
ECU.
• Defective IMU
coupler or ECU
coupler.
• Open or short cir-
cuit in wire har-
ness between IMU
and ECU.
• Malfunction in
IMU.
• Malfunction in
ECU.
9-70
Vehicle symptom
Traction control
does not work.
Traction control sys-
tem indicator on the
meter comes on.
Traction control sys-
tem switch is dis-
abled. (Traction
control system indi-
cator on the meter
goes OFF.)
Increased exhaust
emissions.
Engine cannot be
started.
Fail-safe system
operation
Traction control
does not work.
Cruise control sys-
tem cannot be oper-
ated. (for
MTN890D)
O feedback is not
2
carried out.
O feedback learn-
2
ing is not carried
out.
QSS is not carried
out.
Cruise control sys-
tem cannot be oper-
ated. (for
MTN890D)
Engine cannot be
started.
Cruise control sys-
tem cannot be oper-
ated. (for
MTN890D)