Yamaha MT-01 T 2005 Service Manual page 361

Fault code No. 24
Diagnostic code No.
Order Item/components and probable
cause
1 Installed state of O
2 Connections
• O sensor coupler
2
• Main wire harness ECU coupler
3 Open or short circuit in wire harness.
4 Check fuel pressure.
5 Defective O
2
Symptom No normal signal is received from the O
— —
sensor.
2
sensor.
FUEL INJECTION SYSTEM
Check or maintenance job
Check for looseness or pinching. Starting 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
securely.
• Repair or replace if there is an
open or short circuit.
• Between O sensor coupler and
2
ECU coupler.
(gray/white–gray/white)
(red/blue–red/blue)
(gray/green–gray/green)
(black/blue–black/blue)
• Refer to "THROTTLE BODIES"
on page 6-4.
• Replace if defective.
7-46
sensor.
2
Reinstatement
method
engine and
operating it at
idle.