Operation Manual

FUEL INJECTION SYSTEM
8-59
TIP
If fault codes 37 and 42 are indicated simultaneously, take the actions specified for fault code 42
first.
5 Front wheel sensor malfunc-
tion
Check the front wheel sensor.
Check in the diagnostic mode
(Code No. d:07).
Front wheel stop: The pulse
integrated value should be
constant.
Rotate the front wheel a few
turns manually and enter the
speed pulse: The pulse inte-
grated value will be added.
Indication is incorrect. →
Refer to “MAINTENANCE OF
THE FRONT WHEEL SEN-
SOR AND SENSOR ROTOR”
on page 4-21
Place the main switch to the
“ON” position and then rotate
the front wheel a few turns
manually to enter the speed
pulse.
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
6 ECU or ABS ECU malfunc-
tion
Replace the ECU or ABS
ECU.
Fault code No. 42
Item No normal signals are received from the front wheel sensor.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. d:07
Meter display Vehicle speed pulses: 0–999
Procedure
Check that the number increases when the front wheel is rotated.
The number is cumulative and does not reset each time the wheel is
stopped.
Item/components and
probable cause
Check or maintenance job
Sensor inspection proce-
dure