Yamaha YFM7FGPW Service Manual page 286

Fault code No. 13
Diagnostic code No. D03
Order Item/components and probable
cause
1 Connections
• Intake air pressure sensor cou-
pler
• Main wire harness-ECU coupler
2 Open or short circuit in wire har-
ness.
3 Defective intake air pressure sen-
sor.
FUEL INJECTION SYSTEM
Symptom Intake air pressure sensor: open or short circuit detected.
Intake air pressure sensor
Check or maintenance job
• 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 intake air pressure sen-
sor coupler and ECU coupler
(black/blue–black/blue)
(pink–pink)
(blue–blue)
• Execute the diagnostic mode.
(Code No.D03)
• Replace if defective.
Refer to "CHECKING THE
INTAKE AIR PRESSURE SEN-
SOR".
6 - 14
FI
Reinstatement
method
Turning the
main switch to
"ON".