Yamaha XV19SX(C) Service Manual page 438

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 sensor.
2
Symptom No normal signal is received from the O
— —
Check or maintenance job
sensor. Check for looseness or pinching. Starting the en-
2
• 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 O
• Refer to "THROTTLE BODIES"
• Replace if defective.
7-47
FUEL INJECTION SYSTEM
that may be pulled out.
the coupler.
and connect the coupler se-
curely.
open or short circuit.
sensor coupler and
2
ECU coupler.
(gray/white–gray/white)
(red/blue–red/blue)
(gray/green–gray/green)
(black/blue–black/blue)
on page 6-7.
sensor.
2
Reinstatement
method
gine and oper-
ating it at idle.