FUEL INJECTION SYSTEM
8-81
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).
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Execute the diagnostic
mode. (Code No. 16)
Rotate the front wheel by
hand and check that the indi-
cated value increases.
Value increases → Go to
item 9 and delete the fault
code.
Value does not increase →
Go to item 5.
5 Wire harness continuity. Open or short circuit → Re-
place the wire harness.
Between front wheel sensor
coupler and ABS ECU cou-
pler.
black–black
white–white
Between ABS ECU coupler
and ECU coupler.
blue/yellow–blue/yellow
Execute the diagnostic
mode. (Code No. 16)
Rotate the front wheel by
hand and check that the indi-
cated value increases.
Value increases → Go to
item 9 and delete the fault
code.
Value does not increase →
Go to item 6.
6 Defective front wheel sensor. Improperly installed sensor
→ Reinstall or replace the
sensor.
Execute the diagnostic
mode. (Code No. 16)
Rotate the front wheel by
hand and check that the indi-
cated value increases.
Value increases → Go to
item 9 and delete the fault
code.
Value does not increase →
Go to item 7.
7 Malfunction in ECU. Replace the ECU.
Refer to “REPLACING THE
ECU (engine control unit)” on
page 8-174.
Execute the diagnostic
mode. (Code No. 16)
Rotate the front wheel by
hand and check that the indi-
cated value increases.
Value increases → Go to
item 9 and delete the fault
code.
Value does not increase →
Go to item 8.
8 Malfunction in ABS ECU. Replace the ABS ECU. Go to item 9.
Fault code No. 69
Item
Front wheel sensor: no normal signals are received from the
front wheel sensor.
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