Subaru IMPREZA GD 2007 Series Manual page 3972

asieps_tobira_IM_US.book 9 ページ ２０１２年１月１７日 火曜日 午後３時４８分
8. CHECK OUTSIDE TEMPERATURE INDICATOR
Step
1 CHECK AIR CONDITIONER TYPE.
2 CHECK POWER SUPPLY FOR AMBIENT
SENSOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from the combi-
nation meter.
3) Turn the ignition switch to ON.
4) Measure the voltage between the combina-
tion meter terminal and chassis ground.
Connector & terminal
(i10) No. 11 (+) — Chassis ground (–):
3 CHECK HARNESS BETWEEN AMBIENT
TEMPERATURE SENSOR AND COMBINA-
TION METER.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ambient
sensor.
3) Measure the resistance between the ambi-
ent temperature sensor harness connector ter-
minal and combination meter harness
connector terminal.
Connector & terminal
(F78) No. 1 — (i10) No. 11:
(F78) No. 2 — (i10) No. 8:
4 CHECK AMBIENT SENSOR.
1) Remove the ambient temperature sensor.
2) Check the ambient temperature sensor.
<Ref. to IDI-19, INSPECTION, Ambient Sen-
sor.>
5 CHECK OUTSIDE TEMPERATURE INDICA-
TOR.
1) Connect the combination meter harness
connector.
2) Connect a resistor (2.2 kΩ) between the ter-
minals of ambient sensor harness connector.
3) Turn the ignition switch to ON and check the
outside temperature indicator display.
6 CHECK POWER SUPPLY FOR COMBINA-
TION METER.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from the auto A/C
control module.
3) Turn the ignition switch to ON.
4) Measure the voltage between the auto A/C
control module terminal and chassis ground.
Connector & terminal
(B282) No. 11 (+) — Chassis ground (–):
Combination Meter System
Check
Is the vehicle equipped with
auto A/C?
Is the voltage 4 V or more?
Is the resistance less than 10 Ω? Go to step 4.
Is the ambient temperature
sensor OK?
Is the outside temperature indi-
cator indicating 25°C (77°F)?
Is the voltage 4 V or more?
IDI-9
INSTRUMENTATION/DRIVER INFO
Yes No
Go to step 6. Go to step 2.
Go to step 3. Except for STI
model:
Replace the com-
bination meter
print circuit.
STI model:
Replace the meter
main assembly.
Repair the wiring
harness.
Go to step 5. Replace the ambi-
ent sensor.
Repair the poor Except for STI
contact of ambient model:
temperature sen- Replace the com-
sor harness con- bination meter
nector. print circuit.
STI model:
Replace the meter
main assembly.
Go to step 7. Replace the auto
A/C control mod-
ule.