Acura Integra 1998 Service Manual page 267

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r
I
Ir
PGM.FI
Engine
System
Coolant Temperature (ECTI Sensor (cont'dl
lTo1ig I
The.scan tool indicates Diagnostic Trouble Code (DTC) P01 18: A high voltage (low temperature) problem in the
. -
E n g i n e C o o l a n t T e m p e r a t u r e ( E C T ) s e n s o r c i r c u i t .
ECT SENSOR CONNECTOR (C111)
L
li
li
tl
lll
tl
fl
ECT
{RED/WHT)
sG2
{GRN/BLKI
JUMPER WIRE
Wire side o{ lemale terminals
ECM CONNECTOR D {16PI
ECT
{RED/WHT)
The MIL has been repo.ted on.
DTC P0118 is stor€d.
Problem v€riticetion:
1 . T u r n t h e i g n i t i o n s w i t c h O N ( l l ) .
2 . C h e c k t h e E C T w i t h t h e s c a n
t o o l .
Intermittont failure, svstom i3 OK
at this time. Check for poor con-
noctions or looso wires at C111
{ECT sensorl and ECM.
ls -4'F (-20"C) or less (or L-Limit
in Honda mode of PGM Tester) or
5 V indicated?
Chock tor an opon in the ECT s6n-
sor:
t . u t s c o n n e c t t n e E L I s e n s o r
2. Install a jumper wire between
the two terminals on the har
ness side of the ECT sensor
3. Check the ECT with the scan
tool,
ls -4'F (-20"C) or less (or L-Limit
in Honda mode of PGM Tested or
5 V indicated?
Ch6ck Ior an open in the wires
IECT, SG2lines):
1. Turn the ignition switch OFF.
2. Install a jumper wire between
ECM conneclor terminals D2
a n d D 1 1 .
3. Turn the ignition switch ON (ll).
4. Check the ECT with the scan
tool.
ls -4'F {-20'C) or less (or L-Limit
in Honda mode ol PGM Tester) or
5 V indicated?
Ropair op6n in the wires betwo€n
ECM lD2, D11) and ECT 3eBor.
Substitute a known-good ECM
and recheck. lf normal ECT is
indicated, replace the original
ECM.
JUMPER WIRE
sG2
r -
z l r r
5
5
e I / 1 0
1 t
't2
l 5
Wire side of female terminals
L