Operation Manual

FUEL INJECTION SYSTEM
8-58
2 Connection of wire harness
ABS ECU coupler
Check the connection of the
coupler is secure.
Disconnect the coupler, and
check each pin (for bending,
wear, or locking).
Poor connection → Connect it
securely, or repair/replace the
wire harness.
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.
3 Connection of wire harness
ECU coupler
Check the connection of the
coupler is secure.
Disconnect the coupler, and
check each pin (for bending,
wear, or locking).
Poor connection → Connect it
securely, or repair/replace the
wire harness.
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.
4 Continuity of wire harness Open or short circuit →
Replace the wire harness.
• Between front wheel sensor
coupler and ABS ECU cou-
pler.
(White–White)
(Black–Black)
• Between ABS ECU coupler
and ECU coupler.
(White–White)
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.
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