Yamaha 2008 Fazer FZ1-N Service Manual page 432

Fault code No. 39 Symptom Open circuit detected in a injector.
Diagnostic code No.
Item/components and probable
Order
Connections
• Injector coupler
• Main wire harness ECU coupler
1 • Sub-wire harness coupler
Open or short circuit in wire harness
and/or sub-wire harness.
2
Defective primary injector.
3
36 Injector #1
37 Injector #2
38 Injector #3
39 Injector #4
cause
FUEL INJECTION SYSTEM
Check or maintenance job
• Check the couplers for any pins
that may be pulled out.
• Check the locking condition of
the couplers.
• If there is a malfunction, repair it
and connect the coupler
securely.
• Repair or replace if there is an
open or short circuit.
• Between primary injector cou-
pler and ECU coupler.
(Red/Blue-Red/Blue)
#1: (Red/Black–Red/Black)
#2: (Green/Black–Green/Black)
#3: (Blue/Black–Blue/Black)
#4: (Orange/Black–Orange/
Black)
• Execute the diagnostic mode.
(Code Nos.36, 37, 38, 39)
• Replace if defective.
Refer to "CHECKING THE
INJECTORS" on page 7-7.
8-63
Reinstatement
method
Start the engine
and operating it
at idle.