Honda CR-V 1997 Service Manual page 302

PGM·FI System
Engine Coolant Temperature (ECT) Sensor (cont'd)
I
P01171
The scan tool indicates Diagnostic Trouble Code (DTC) POl17: A low voltage (high temperature) problem in the
Engine Coolant Temperature (EeT) sensor circuit.
- The MIL has been reported on.
- DTC P0111
is stored.
I
Problem verification:
1. Turn the ignition switch ON
(II).
2.
Check the
Eel
with the scan
tool.
I
Is 302°F (150°C) or higher (or
H-Limit in Honda m ode of
PGM Tester) or 0 V indicated?
I
YES
Cheek for a short in the Eel sen-
sor:
,
.
Disconnect the
Eel
sensor 2P
con nector.
2.
Check the Eel with the scan
tool.
I
Is 302°F (150"C) or higher (or
H-Limit in Honda mode of
PGM Tester) or 0 V indicated?
I
YES
Check for a short in the wire
~ECT
line):
1. Tum the ignition switch OFF.
2.
Disconnect the ECMJPCM con-
nector 0 (16P), IC (31P)*).
3. Check fo r contin uity between
the
ECT
sensor
2P
connector ter-
minal No. 1 and body ground.
I
Is there continuity?
I
NO
Substitute a known-good ECMI
PCM and recheck. H normal ECT
is
indicated. replace
the
original
ECM/PCM.
*: '98 - 00 models
11-100
Intermittent failure , system is OK
NO
at this time.
Check
for poor con-
nections or loose wires at Cl14
tEeT
se nsor) and at the
ECMI
PCM.
NO
Replace the
Eel
sensor.
Repair .hort In the wire between
"-
YES
/ '
the ECM/PCM (02. C26-' and the
ECT .ensor.
ECT SENSOR 2P CONNECTOR (CI14)
1
2
ECT
IRED/WHT)
Wire side of female terminals