Acura 1994 Integra Service Manual page 248

PGM-FI System
Engine Coolant Temperature (ECT) Sensor
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-l 6
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The Malfunction Indicator Lamp (MlL) indicates Diagnostic Trouble Code (DTC) 6: A problem in
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the Engine Coolant Temperature (ECT) Sensor circuit.
The ECT Sensor is a temperature dependant resistor (thermistor). The resistance oI the thermistor decreases as th€ en-
gine coolant tempe.ature increases as shown below.
J rsG-11
RESISTANCE
{k0l
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j 3 2 6 8 l O r r l a 0 t 7 6 2 t 2 2 a 8 ( . F l
-2tt 0 20 rto ao D r@ t20 (,cl
ENGII{E COOLAI{T TCMPERATURE
- Th€ MIL has boon roDortod on.
- Wlth tho SCS shon connoctor
connoctod {s66 pag6 '11-34},
code 6 is indicatod.
Do the ECM Reset Procedu.e lsee
page 1 1-35).
Turn the ignition switch ON.
Intoimittont failur6. ryatom is OK
el this lime ltosl d.ive may bo
nocassaryl.
Chock for poor connsctiona or
looso wiros al C223 {locatod at
tight shock lowor, C111 (ECT
sonsorl, C419 {TCMI and ECM.
ls the MIL on and does it indi-
cate code 6?
Start the engine. Hold the engine
at 3,O0O rom with no load {Afi in
N or lF]position, M/T in neutral)
until the radiator lan comes on,
then lot it idle.
Turn the ignition swirch OFF.
Disconnect the 2P conneclor lrom
the ECT sensor.
Measure resistance between the
2 terminals on the ECT sensor.
ls there 2OO-4OO O?
(To page 1 1-59)
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