Acura 1994 Integra Service Manual page 249

ECT SENSOR
G R N / B L U { - }
Turn the ignition switch ON.
Measure voltage betweon RED/
WHT and body ground.
Measure voltage between RED/
WHT {+}terminal and GRN/8LU
(- ) terminal.
ls there approx. 5 V?
ls there approx. 5 V?
Ropai. opon in GRN/
BLU wiro botwoon ECM
(D221 and tho ECT
36n3('r.
Turn the ignition switch OFF.
Sub3tituto a known-good €CM
and rochock. lf 3ymptom/indica-
tion go6s away, roplaco the odgi-
nal ECM.
Oisconnect the 22P connector
trom the Transmission Control
Module (TCM).
Turn the ignition switch ON.
ls there approx. 5 V7
Turn the ignition switch OFF and
reconnect the connector to the
T C M .
Connect the test harn€ss "D"
connector to the ECM only. not to
the main wire harness {see page
1 1 - 3 7 ) .
Turn the ignition switch ON.
Measure voltage between D13
(+) terminal and D22 (-l ter-
mlnal.
Repair opoa or shon in
REO/WHT wiro botwoen ECM
lDl3l and th6 ECT sonsor.
R6pair shon in REO/WHT YYi..
b6tw66n ECM {D131and TCM.
ls the.e approx. 5 V?
Substiluto a known-good ECM
and rochock. ll lymptom/indica-
tion goea 6wsy, replaco tho o.igi-
n6l ECM,
A/T only
I
_ i
1 1 - 5 9