Yamaha MT-01 Service Manual page 796

Manuals by Motomatrix / www.motomatrix.co.uk
Fault code No. 29
Diagnostic code No.
Order Item/components and probable
cause
1 Installed state of decompression sole-
noid.
2 Connections
• Decompression solenoid (ther-
mistor) coupler
• Main wire harness ECU coupler
3 Open or short circuit in wire harness.
4 Defective decompression solenoid
(thermistor).
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
cut-off switch.
3 Connections
• Lean angle cut-off switch coupler
• Main wire harness ECU coupler
4 Defective lean angle cut-off switch.
Email: info@motomatrix.co.uk
Symptom Decompression solenoid (thermistor): open or short cir-
cuit detected.
55 Decompression solenoid
Symptom The vehicle has overturned.
08 Lean angle cut-off switch
FUEL INJECTION SYSTEM
Check or maintenance job
Check for looseness or pinching. Turning the
• Check the coupler for any pins
that may be pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect the coupler se-
curely.
• Repair or replace if there is an
open or short circuit.
• Between decompression sole-
noid (thermistor) coupler and
ECU coupler
(green/red–green/red)
(black/blue–black/blue)
• Execute the diagnostic mode.
(Code No.55)
• Replace if defective.
Refer to "CHECKING THE DE-
COMPRESSION SOLENOID"
on page 7-106.
Check or maintenance job
Raise the vehicle upright.
Check for looseness or pinching.
• Check the coupler for any pins
that may be pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect the coupler se-
curely.
• Execute the diagnostic mode.
(Code No.08)
• Replace if defective.
Refer to "CHECKING THE
LEAN ANGLE CUT-OFF
SWITCH" on page 7-101.
7-50
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").