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Fault code No.
Item
Fail-safe system
Diagnostic code No.
Indicated
Procedure
Probable cause of mal-
Item
function and check
1
Connection of speed sensor
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).
2
Connection of 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).
3
Wire harness continuity.
4
Defective speed sensor.
42
Speed sensor: no normal signals are received from the speed
sensor.
Able to start engine
Able to drive vehicle
07
Vehicle speed pulse
0–999
Check that the number increases when the rear wheels are rotat-
ed. The number is cumulative and does not reset each time the
wheel is stopped.
Maintenance job
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Open or short circuit → Re-
place the wire harness.
Between speed sensor cou-
pler and ECU coupler.
white–white
Between speed sensor cou-
pler and joint coupler.
blue–blue
black/blue–black/blue
Between joint coupler and
ECU coupler.
blue–blue
black/blue–black/blue
Execute the diagnostic
mode. (Code No. 07)
While the rear wheels and
stopped, check that the indi-
cated value does not
change.
Rotate the rear wheel by
hand and check that the indi-
cated value increases.
Malfunction → Replace the
speed sensor.
8-50
FUEL INJECTION SYSTEM
Confirmation of service
completion
Turn the main switch to "
(on), and then rotate the rear
wheel by hand.
Fault code number is not dis-
played → Go to item 6.
Fault code number is dis-
played → Go to item 2.
Turn the main switch to "
(on), and then rotate the rear
wheel by hand.
Fault code number is not dis-
played → Go to item 6.
Fault code number is dis-
played → Go to item 3.
Turn the main switch to "
(on), and then rotate the rear
wheel by hand.
Fault code number is not dis-
played → Go to item 6.
Fault code number is dis-
played → Go to item 4.
Turn the main switch to "
(on), and then rotate the rear
wheel by hand.
Fault code number is not dis-
played → Go to item 6.
Fault code number is dis-
played → Go to item 5.
"
"
"
"
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Troubleshooting
