Yamaha FJR1300A(D) Service Manual page 518

Fault code No.
Item
6 Defective gear position
switch (neutral circuit).
7 Faulty shift drum (neutral de-
tection area).
8 Malfunction in ECU.
9 Delete the fault code.
Fault code No.
Item
Fail-safe system
Diagnostic code No.
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.
Check the gear position
switch.
Refer to "CHECKING THE
SWITCHES" on page 8-169.
Malfunction → Replace the
shift drum.
Refer to "TRANSMISSION"
on page 5-97.
Replace the ECU.
Refer to "REPLACING THE
ECU (engine control unit)" on
page 8-174.
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.
Able to start engine
Able to drive vehicle
21
8-69
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 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.
Turn the main switch to "ON",
and then rotate the rear
wheel by hand.
Start the engine, and input
the vehicle speed signals by
operating the vehicle at 20 to
30 km/h (19 mph).
The fault code can also be
delete by activating the diag-
nostic mode and selecting di-
agnostic code number "63".