Honda VFR800F 2014 Service Manual page 108

PGM.FI SYSTEM
DTC 67-1 (FRONT
WHEEL
SPEED SENSOR)
NOTE:
.
Before starting
the
inspection,
check
for loose
or
poor contact on ttre RAS modulator
18P (Black) and
'fCnA
SSp (Gray) connectors,
and
recheck
the DTC'
1.
Recheck DTG
Erase
the DTC
(Page 4-7).
Test-ride
the motorcYcle'
Check
the rear
wheel
speed sensor with the MCS'
ls the DTC 67-1
indicated?
YES
-
GO
TO STEP 2.
NO -
lntermittent failure
2.
Front Wheel Speed Sensor Signal Line
Open
Circuit lnsPection
Turn
the
ignition switch OFF.
Disconnect the following:
-
ABS modulator
18P (Black)
connector (page
18-
8)
-
ECM 33P (Gray) connector (page 4-42)
Check for continuity between
the wire harness side
ABS modulator
18P (Black)
connector [1i and ECM
33P (Gray) connector [2] terminals.
TOOL:
Test probe (2
Pack)
07ZAJ-RDJA110
GONNECTION:
Pink/blue
- PinUblue
(B31)
ls
there
continuitY?
YES
-
GO
TO STEP
3.
NO -
Open circuit in
the
Pink/blue wire
3.
Front Wheel Speed
Sensor
Signal Line Short
Gircuit lnsPection
Check for continuity between
the wire harness side
ECM 33P (Gray) connector [1]
terminal and
ground'
TOOL:
Test probe (2
Pack)
07ZAJ-RDJA110
CONNECTION:
Pink/blue
(831)
-
Ground
ls
there
continuitY?
YES
-
Short circuit in
the Pink/blue wire
NO -
GO
TO
STEP
4.
4. Self-cancelling Turn Signal Function Gheck
Connect the ABS modulator 18P (Black) and
ECM
33P (GraY)
connectors.
Testrideihe motorcycle
and check
the operation
of
the self-cancelling turn signal.
Does the
self-cancetling function
properly?
YES
-
Replace
the ECM
with a known good
one
and recheck.
NO -
FaultY
ABS
modulator
P/Bu (B31)
4-41