Yamaha XV19SX(C) Service Manual page 441

Fault code No. 28
Diagnostic code No.
Order Item/components and probable
cause
1 Installed state of engine temperature
sensor.
2 Connections
• Engine temperature sensor coupler
• Main wire harness ECU coupler
• Sub-wire harness 2 coupler
3 Open or short circuit in wire harness
and/or sub lead.
4 Defective engine temperature sensor. • Execute the diagnostic mode.
Fault code No. 30
Diagnostic code No.
Order Item/components and probable
cause
1 The vehicle has overturned.
2 Installed condition of the lean angle
sensor.
3 Connections
• Lean angle sensor coupler
• Main wire harness ECU coupler
4 Defective lean angle sensor.
Symptom Engine temperature sensor: open or short circuit detect-
ed.
11 Engine temperature sensor
Check or maintenance job
Check for looseness or pinching. Turning the
• Check the coupler for any pins
• Check the locking condition of
• If there is a malfunction, repair it
• Repair or replace if there is an
• Between engine temperature
• Replace if defective.
Symptom The vehicle has overturned.
08 Lean angle sensor
Check or maintenance job
Raise the vehicle upright.
Check for looseness or pinching.
• Check the coupler for any pins
• Check the locking condition of
• If there is a malfunction, repair it
• Execute the diagnostic mode.
• Replace if defective.
7-50
FUEL INJECTION SYSTEM
that may be pulled out.
the coupler.
and connect the coupler se-
curely.
open or short circuit.
sensor coupler and ECU cou-
pler
(brown–brown)
(black–black)
(Code No.11)
Refer to "CHECKING THE EN-
GINE TEMPERATURE SEN-
SOR" on page 7-87.
that may be pulled out.
the coupler.
and connect the coupler se-
curely.
(Code No.08)
Refer to "CHECKING THE
LEAN ANGLE SENSOR" on
page 7-85.
Reinstatement
method
main switch to
"ON".
Reinstatement
method
Turning the
main switch to
"ON" (however,
the engine can-
not be restarted
unless the main
switch is first
turned "OFF").