Yamaha FZ6-SS Service Manual page 357

Fault code No. 43
Used diagnostic code No. 09 (fuel system voltage)
Order Inspection operation item and probable
cause
1 Connected condition of connector
Inspect the coupler for any pins that
may have pulled out.
Check the locking condition of the
coupler.
2 Malfunction in ECU
3 Open or short circuit in the wiring har-
ness.
4 Malfunction or open circuit in fuel injec-
tion system relay
FUEL INJECTION SYSTEM
Symptom The ECU is unable to monitor the battery voltage.
Operation item and countermeasure
If there is a malfunction, repair it and connect it
securely.
Starting circuit cut-off relay coupler
(fuel injection system relay)
Fuel pump coupler
Injector coupler
ECU coupler
Fuel injection system relay is on.
Repair or replace if there is an open or short
circuit.
Between starting circuit cut-off relay (fuel injection
system relay), fuel pump, injector (#1 X #4)
red / blue – red / blue
Execute the diagnostic mode (code No. 09)
NOTE:
When the leads are disconnected, the voltage
check by the code No. 09 is impossible.
Replace if defective.
1. Disconnect the starting circuit cut-off relay
from the wire harness.
2. Connect the pocket tester (Ω
(12 V) to the starting circuit cut-off relay termi-
nals as shown.
Battery positive terminal ! red / black
Battery positive terminal ! blue / yellow
Tester positive probe ! red
Tester negative probe ! red / blue
3. Does the starting circuit cut-off relay have con-
tinuity between red and red / blue?
7-21
FI
Reinstatement
method
Reinstated by
starting the
engine and
operating it at
idle.
1) and battery
1
2
3
4