Subaru IMPREZA GD 2007 Series Manual page 3966

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2. Combination Meter System
A: WIRING DIAGRAM
1. COMBINATION METER
<Ref. to WI-152, WIRING DIAGRAM, Combination Meter System.>
2. OUTSIDE TEMPERATURE INDICATOR
<Ref. to WI-165, WIRING DIAGRAM, Outside Temperature Display System.>
B: INSPECTION
CAUTION:
When measuring the voltage and resistance of the ECM, TCM and each sensor, use a tapered pin with
a diameter of less than 0.64 mm (0.025 in) in order to avoid poor contact. Do not insert the pin more
than 2 mm (0.08 in).
1. SYMPTOM CHART
Symptom
Combination meter assembly does not operate.
Speedometer does not operate.
Tachometer does not operate.
Fuel gauge does not operate.
Engine coolant temperature gauge does not
operate.
Outside temperature indicator does not operate.
Combination Meter System
Repair order
1. Power supply
2. Ground circuit
1. Vehicle speed sensor (MT model)
TCM (AT model)
2. Harness
3. Speedometer
1. ECM
2. Harness
3. Tachometer
1. Fuel level sensor
2. Harness
3. Fuel gauge
1. Engine coolant temperature sensor
2. Harness
3. Engine coolant temperature gauge
1. Ambient sensor
2. Harness
3. Combination meter
4. Auto A/C control module
IDI-3
INSTRUMENTATION/DRIVER INFO
Reference
<Ref. to IDI-4, CHECK
POWER SUPPLY AND
GROUND CIRCUIT,
INSPECTION, Combi-
nation Meter System.>
MT: <Ref. to IDI-5,
CHECK VEHICLE
SPEED SENSOR,
INSPECTION, Combi-
nation Meter System.>
AT: <Ref. to IDI-6,
CHECK TRANSMIS-
SION CONTROL MOD-
ULE (TCM),
INSPECTION, Combi-
nation Meter System.>
<Ref. to IDI-6, CHECK
ENGINE CONTROL
MODULE (ECM),
INSPECTION, Combi-
nation Meter System.>
<Ref. to IDI-7, CHECK
FUEL LEVEL SEN-
SOR, INSPECTION,
Combination Meter
System.>
<Ref. to IDI-8, CHECK
ENGINE COOLANT
TEMPERATURE SEN-
SOR, INSPECTION,
Combination Meter
System.>
<Ref. to IDI-9, CHECK
OUTSIDE TEMPERA-
TURE INDICATOR,
INSPECTION, Combi-
nation Meter System.>