Honda VFR800F 2014 Service Manual page 95

PGM.FI SYSTEM
Drc
7 (ECT SENSOR)
ECT
SENSOR
Probable cause
.
Open
or short circuit
in
the
Blue/yellow wire between
the ECT sensor
and ECM
.
Op"n circuit
in the
Gray
wire
between
the
ECT
sensor
and ECM
.
Faulty ECT
sensor
.
Faulty ECM
DTC
7-1
(ECT SENSOR LOW
VOLTAGE)
1.
ECT
Sensor
SYstem
lnsPection
Check
the
ECT sensor with
the MCS'
lsabout0Vindicated?
YES
-
GOTO STEP 2.
NO -
lntermittent failure
2.
ECT
Sensor System lnspection
with
Connector
Disconnected
Turn
the
ignition switch OFF.
Disconne6t
the ECT sensor
3P (Gray) connector
(Page
4-44)-
Cnecf the
ECT sensor with
the MCS'
lsabout0Vindicated?
YES
- GOTOSTEP3.
NO -
FaultY
ECT
sensor
3.
ECT
Sensor
Output Line
Short Circuit lnspection
Turn
the
ignition switch OFF.
Disconnedt
the
ECM 33P (Gray) connector (page
4-
42).
Check for continuity
between
the wire harness
side
iCT ."ntot 3P (dray)
connector
[1]
terminal and
ground.
CONNECTION: Blue/Yellow
- Ground
ls
there
continuitY?
YES
-
Short circuit in Blue/yellow
wire
NO -
Replace
the
ECM
with
a
known good
one
and recheck.
ECM
5V
'r
T.
4-15
*"."-*
Bu^/
.--Gr