Subaru 2009 IMPREZA, Service Manual

Page: 3082 / 3619

IDI-12
Clock System
INSTRUMENTATION/DRIVER INFO
3. Clock System
A: WIRING DIAGRAM
Refer to “Clock System” in WI section. <Ref. to WI-147, WIRING DIAGRAM, Clock System.>
B: INSPECTION
1. SYMPTOM CHART
2. CHECK POWER SUPPLY AND GROUND CIRCUIT AND COMMUNICATION CIRCUIT
Symptom Repair order Index
No display is shown. 1. Power supply
2. Ground circuit
3. Communication circuit harness
4. Clock body <Ref. to IDI-12, CHECK POWER SUPPLY AND
GROUND CIRCUIT AND COMMUNICATION CIR-
CUIT, INSPECTION, Clock System.>
Ambient air temperature/fuel
economy displays do not appear. 1. Power supply
2. Ground circuit
3. Communication circuit harness
4. Clock body <Ref. to IDI-13, CHECK CLOCK SYSTEM COMMU-
NICATION CIRCUIT., INSPECTION, Clock System.>
Only ambient air temperature dis-
play is not displayed. 1. Power supply
2. Harness
3. Ambient sensor
4. Communication circuit
5. Clock body <Ref. to IDI-14, CHECK AMBIENT TEMPERATURE
METER SYSTEM COMMUNICATION CIRCUIT.,
INSPECTION, Clock System.>
Only fuel economy display is not
displayed. 1. Setting
2. Communication circuit
3. Clock body <Ref. to IDI-15, CHECK COMMUNICATION CIRCUIT
OF FUEL ECONOMY SYSTEM, INSPECTION, Clock
System.>
Step Check Yes No
1 CHECK POWER SUPPLY.
1) Disconnect the clock connector.
2) Measure the voltage between clock connec-
tor and chassis ground.
Connector & terminal
(i59) No. 10 (+) — Chassis ground (–):
Is the voltage 10 V or more? Go to step 2 . Check the harness
for a open or short
between the fuse
and clock.
2 CHECK GROUND CIRCUIT.
Measure the resistance between the clock con-
nector and chassis ground.
Connector & terminal
(i59) No. 6 — Chassis ground:
Is the resistance less than 10
:
? Go to step 3 . Repair or replace
the harness.
3 CHECK HARNESS BETWEEN CLOCK AND
COMBINATION METER.
1) Disconnect the combination meter connec-
tor.
2) Measure the resistance between the clock
connector and combination meter connector.
Connector & terminal
(i59) No. 5 — (i10) No. 29:
Is the resistance less than 10
:
? Go to step 4 . Repair or replace
the harness.
4 CHECK CLOCK.
1) Remove the clock.
2) Attach the clock to another vehicle on which
the clock operates normally to check its opera-
tion.
Is clock normal? Replace the meter
case assembly. Replace the clock
body.