Acura 2002 RSX Service Manual page 1101

4 .
DTC 2: A Short in the In-car Temperature
Sensor Circuit
1. Remove the in-car temperature sensor (see page
21-39].
2. Test the in-car temperature sensor (see page 21-39).
ls the resistance within the specitications shown
on the graph?
YES Go to step 3.
NO Reolace the in-ca r temDeratu re sensor.l
Disconnect the climate control unit 30P connector.
Check for continuity between the No. 8 terminal of
the climate control unit 30P connector and bodV
g r o u n d .
CLIMATE CONTROL UNIT 3OP CONNECTOR
Wire side of female terminals
ls there continuity?
YES Repair short to body ground in the wire
between the climate control unit and the in-car
temperature sensor.l
NO Substitute a known-good climate control unit,
and recheck. lf the symptom/indication
goes away,
replace the original climate control unit.l
DTC 3: An Ooen in the Outside Air
Temperature Sensor Circuit
1. Remove the outside air temDerature sensor (see
p a g e 2 1 - 4 0 ) .
2. Measure the resistance between the No. I and
No. 2 terminals of the outside air temperature
sensor.
*Dip the sensor in ice water, and measure
resistance. Then pour warm water on the sensor,
and check for a change in resistance,
OUTSIDE AIR TEMPERATURE
SENSOR
RESISTANCE
k 0
1 2
1 1
1 0
9
8
4
2
1
'14 32 50 68 86
-10
0
10 20 30
TEMPERATURE
1 0 4 ' F
40 'c
'ls the resistance within the specifications shown
on the graph?
YES Go to step 3.
NO Replace the outside air temperature sensor.I
Disconnect the climate control unit 30P connector.
(cont'd)
21-17
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