Communication Error With The Meter; Diagnostic Code: Sensor Operation Table - Yamaha MT-09 2021 Service Manual

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
* The DTC number varies according to the vehicle conditions.
EAS33030

COMMUNICATION ERROR WITH THE METER

DTC Item
U0155 [U0155 (FI)] Multi-
(YDT) function meter: sig-
Err (multi- nals cannot be
function transmitted between
meter dis- the ECU and the
play) multi-function me-
ter.
EAS33031

DIAGNOSTIC CODE: SENSOR OPERATION TABLE

Diagnostic
code No.
01 Throttle position sensor
signal 1
• Fully closed position
• Fully open position
03 Intake air pressure
04 Intake air pressure 2
05 Intake air temperature
06 Coolant temperature
Probable cause of
malfunction
Communication be-
tween the ECU and
the meter is not pos-
sible
• Defective meter
coupler and ECU
coupler
• Open or short cir-
cuit in the wire har-
ness between the
meter and the
ECU
• Defective meter
• Defective ECU
Item
11–21
96–107
Displays the intake air
pressure.
Displays the intake air
pressure.
Displays the intake air
temperature.
When engine is cold: Dis-
plays temperature closer
to air temperature.
When engine is hot: Dis-
plays current coolant tem-
perature.
9-76
Vehicle symptom
Defective meter dis-
play.
Traction control
does not work.
Tool display
Fail-safe system
operation
MAP changeover:
State is fixed.
Traction control
does not work.
Meter switch input:
OFF is fixed.
QSS is not carried
out.
Cruise control sys-
tem cannot be oper-
ated. (for
MTN890D)
Procedure
Check with throttle valves
fully closed.
Check with throttle valves
fully open.
Operate the throttle while
pushing the " " side of the
stop/run/start switch. (If
the display value changes,
the performance is OK.)
Operate the throttle while
pushing the "@" side of the
stop/run/start switch. (If
the display value changes,
the performance is OK.)
Compare the actually
measured air temperature
with the tool display value.
Compare the actually
measured coolant tem-
perature with the tool dis-
play value.