Subaru Legacy III (2000-2003 year). Service manual — part 953

IDI-12

INSTRUMENTATION/DRIVER INFO

COMBINATION METER SYSTEM

8. CHECK OUTSIDE TEMPERATURE INDICATOR

Step

Value

Yes

No

1

CHECK POWER SUPPLY FOR AMBIENT
SENSOR.
1) Turn ignition switch OFF.
2) Disconnect connector from ambient sensor.
3) Turn ignition switch ON.
4) Measure voltage between ambient sensor

harness connector terminal and chassis
ground.

Connector & terminal

(F78) No. 2 (+) — Chassis ground (

−−−−

):

Does the measured value exceed the spec-
ified value?

4 V

Go to step 2.

Check harness for
open or short
between ambient
sensor and combi-
nation meter.

2

CHECK AMBIENT SENSOR.
1) Turn ignition switch OFF.
2) Remove ambient sensor.
3) Check ambient sensor. <Ref. to IDI-22,

INSPECTION, Ambient Sensor.>
Is the ambient sensor OK?

Ambient sensor is OK.

Go to step 3.

Replace the ambi-
ent sensor.

3

CHECK HARNESS BETWEEN AMBIENT
SENSOR AND COMBINATION METER.
1) Disconnect connector from combination

meter.

2) Measure resistance between ambient sen-

sor harness connector terminal and combi-
nation meter harness connector terminal.

Connector & terminal

(F78) No. 1 — (i10) No. 22:

Is the measured value less than the speci-
fied value?

10

Ω

Go to step 4.

Repair wiring har-
ness.

4

CHECK OUTSIDE TEMPERATURE INDICA-
TOR.
1) Connect combination meter harness con-

nector.

2) Connect a resistor (1.7 k

Ω

) between termi-

nals of ambient sensor harness connector.

3) Turn ignition switch ON and check the out-

side temperature indicator display.
Is the outside temperature indicator indicat-
ing the specified value?

25

°

C (77

°

F)

Outside tempera-
ture indicator is
OK.

Replace combina-
tion meter printed
circuit.

IDI-13

INSTRUMENTATION/DRIVER INFO

COMBINATION METER SYSTEM

9. CHECK COMBINATION METER PRINTED CIRCUIT

(A)

Combination meter connector (16-poles): To B: (i11)

(B)

Combination meter printed circuit connector (5-poles): To CFL inverter harness

Step

Value

Yes

No

1

CHECK COMBINATION METER PRINTED
CIRCUIT.
1) Turn ignition switch OFF.
2) Remove combination meter. <Ref. to IDI-

14, Removal.>

3) Disconnect connector from combination

meter.

4) Disconnect CFL inverter harness connector

(5-poles) from behind the meter.

5) Remove CFL inverter from combination

meter. <Ref. to IDI-16, LUMINESCENT
METER.>

6) Measure resistance between printed circuit

connector (B) and combination meter con-
nector (A).

Connector & terminal

Printed circuit connector (B) No. 1 —
Combination meter connector (A) No.
7:
Printed circuit connector (B) No. 2 —
Combination meter connector (A) No.
7:

Is the measured value less than the speci-
fied value?

1

Ω

Go to step 2.

Replace combina-
tion meter printed
circuit.

2

CHECK COMBINATION METER PRINTED
CIRCUIT.
1) Connect combination meter connectors to

instrument panel harness. (With CFL
inverter removed.>

2) Turn ignition switch ON.
3) Measure voltage between printed circuit

connector (B) terminals.

Connector & terminal

Printed circuit connector (B) No. 1—
No. 5:

Does the measured value exceed the spec-
ified value?

10 V

Replace CFL
assembly (light,
harness and
inverter).

Replace combina-
tion meter printed
circuit.

1

2

3

8

9

10

4

11

12

13

14

15

16

5

6

7

1

2

3

4

5

1

2

3

4

5

IDI00048

( A )

( B )

( B )

IDI-14

INSTRUMENTATION/DRIVER INFO

COMBINATION METER ASSEMBLY

3. Combination Meter Assem-

bly

A: REMOVAL

1) Disconnect ground cable from battery.
2) Set tilt steering at the lowest position.
3) Disconnect each electrical connector to remove
front cover (A) and switch panel (B).
4) Loosen screws (C) to remove center panel (D).
5) Remove meter visor (E).

NOTE:
The following illustration is for LHD model. The lay-
out for RHD model is symmetrically opposite.

6) Remove screws of combination meter to pull out
the meter toward you.
7) Remove connector in the upper area of combi-
nation meter to remove meter.

CAUTION:
• Be careful not to damage meter or instrument
panel.

• Pay particular attention to avoid damaging
the meter glass.

IDI00027

: Hook pawl

( A )

( B )

( C )

( D )

( E )

IDI00028

IDI-15

INSTRUMENTATION/DRIVER INFO

COMBINATION METER ASSEMBLY

B: INSTALLATION

Install in the reverse order of removal.

CAUTION:
• Make sure that electrical connector is con-
nected securely.
• Make sure that each meter operates normally.

C: DISASSEMBLY

CAUTION:
Use gloves to avoid damage and getting finger-
prints on the glass surface and meter surfaces.

1. STANDARD METER

1) Disengage claw (F) to remove case (B) from
back cover (A).
2) Disengage claw (G) to remove meter glass (E),
reflector (D), and window plate (C) from inner case.

3) Pull up claw (A) in portion (B) of printed circuit
(C) with combination pliers. Push out speedometer
assembly (D) and tachometer assembly (E) using
hole (F).
4) Pull up claw in the center of printed circuit (C),
and remove printed circuit from case (G).

IDI00029

( A )

( B )

( C )

( D )

( E )

( F )

( G )

IDI00030

( A )

( B )

( C )

( D )

( E )

( F )

( G )