Yamaha FJR1300A(D) Service Manual page 520

Fault code No.
Item
4 Connection of wire harness
ECU coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
5 Wire harness continuity.
6 Defective relay unit.
7 Defective clutch switch.
8 Malfunction in ECU.
42
Rear wheel sensor: no normal signals are received from the
A
rear wheel sensor.
B Neutral switch: open or short circuit is detected.
C Clutch switch: open or short circuit is detected.
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Open or short circuit → Re-
place the wire harness.
Between ECU coupler and
joint coupler.
black/yellow–black/yellow
Between joint coupler and
clutch switch coupler.
black/yellow–black/yellow
Between clutch switch cou-
pler and joint coupler.
green/white–green/white
Between joint coupler and
relay unit coupler.
black/red–black/red
Check the relay unit.
Refer to "CHECKING THE
RELAY UNIT (DIODE)" on
page 8-180.
Check the clutch switch.
Replace if defective.
Refer to "CHECKING THE
SWITCHES" on page 8-169.
Replace the ECU.
Refer to "REPLACING THE
ECU (engine control unit)" on
page 8-174.
8-71
FUEL INJECTION SYSTEM
Execute the diagnostic
mode. (Code No. 21)
When the clutch lever is re-
leased: "OFF"
When the clutch lever is
squeezed: "ON"
Correct indication→ Go to
item 9.
Incorrect indication → Go to
item 5.
Execute the diagnostic
mode. (Code No. 21)
When the clutch lever is re-
leased: "OFF"
When the clutch lever is
squeezed: "ON"
Correct indication→ Go to
item 9.
Incorrect indication → Go to
item 6.
Execute the diagnostic
mode. (Code No. 21)
When the clutch lever is re-
leased: "OFF"
When the clutch lever is
squeezed: "ON"
Correct indication→ Go to
item 9.
Incorrect indication → Go to
item 7.
Execute the diagnostic
mode. (Code No. 21)
When the clutch lever is re-
leased: "OFF"
When the clutch lever is
squeezed: "ON"
Correct indication→ Go to
item 9.
Incorrect indication → Go to
item 8.