Subaru Legacy IV (2008 year). Service manual — part 1092

IDI-9

Combination Meter System

INSTRUMENTATION/DRIVER INFO

• Illuminating order table
Display Contents 1

Display Contents 2

Step 4-2. Press the trip knob: Check the beeping of SPORT shift buzzer (For AT model only, while for MT model, go to the next)

All meter indicator nee-
dle returns to lowest
position.

Light OFF

Shift display
blinks with
buzzer.

STEP 4 SS BUZZER
is displayed.

Light at the highest
brightness.

SPORT shift
buzzer beeps.

Step 5. Press the trip knob: Complete the self-diagnosis 1 cycle

All meter indicator needle returns to lowest position, and go back to step 1 after completion.

Illuminating
order

1

2

3

4

5

6

7

8

9

10

Go back

to 1 and

repeat

AT select lever
position indicator

P

R

N

D

All

lights

ON

1

2

3

4

5

Display time
(seconds)

1

0.5

0.5

0.5

1

0.5

0.5

0.5

0.5

0.5

Back-up light

White light ON

Illuminating
order

1

2

3

4

5

6

7

8

9

10

Go back

to 1 and

repeat.

Speedometer

0

0

40

60

80

100

80

60

40

0

Tachometer

0

0

1000

2000

3000

4000

3000

2000

1000

0

Fuel gauge

Lowest

position

EMPTY

Warn-

ing light

illumi-

nation

position

1/2

FULL

Highest
position

FULL

1/2

Warn-

ing light

illumi-

nation

position

EMPTY

Engine coolant
temperature
gauge

Lowest

position

C

at the

first

scale

1/2

at the

third

scale

over the

fourth

scale

(approx.

120°C)

at the

third

scale

1/2

at the

first

scale

C

ECO gauge

–Max

0

+Max

0

–Max

0

+Max

0

–Max

0

Low fuel
warning light

Light

ON

Light

ON

Light

ON

Light

OFF

Light

OFF

Light

OFF

Light

OFF

Light

OFF

Light

ON

Light

ON

AT select lever
position
indicator

P

R

N

D

All

lights

ON

1

2

3

4

5

Multi-informa-
tion display

STEP 2 is displayed.

Display time
(seconds)

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

Back-up light
(SS of AT
model)

White light ON

Back-up light
(Multi informa-
tion display
LCD)

White light ON

Yellow light ON

Speedometer, tachome-
ter, fuel gauge, engine
coolant temperature
gauge, ECO gauge

Microcomputer
running type
warning light,
indicator light

AT select lever
position indica-
tor light

Multi-information dis-
play

Illumination
(indicator needle,
plate, ring, LCD)

Buzzer (SPORT
shift buzzer,
VDC buzzer,
vehicle speed
warning buzzer)

IDI-10

Combination Meter System

INSTRUMENTATION/DRIVER INFO

4. SYMPTOM CHART

CAUTION:
When measuring the voltage and resistance of each control module or 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).

Symptoms

Repair order

Reference

Combination meter assembly
does not operate.

1. Power supply
2. Ground circuit
3. Combination meter

<Ref. to IDI-11, CHECK POWER SUPPLY AND
GROUND CIRCUIT, INSPECTION, Combination
Meter System.>

Speedometer does not operate.

1. ABS C/M or VDC C/M
2. Harness
3. Combination meter

<Ref. to IDI-12, CHECK THE ABSCM OR VDCCM,
INSPECTION, Combination Meter System.>

Tachometer does not operate.

1. ECM
2. Harness
3. Combination meter

<Ref. to IDI-12, CHECK ENGINE CONTROL
MODULE (ECM), INSPECTION, Combination
Meter System.>

Fuel gauge does not operate.

1. Combination meter
2. Communication circuit
3. Harness
4. Body integrated unit
5. Fuel level sensor

<Ref. to IDI-13, CHECK FUEL LEVEL SENSOR,
INSPECTION, Combination Meter System.>

Engine coolant temperature
gauge does not operate.

1. Communication circuit
2. Engine coolant temperature sensor
3. Harness
4. Combination meter

<Ref. to IDI-15, CHECK ENGINE COOLANT TEM-
PERATURE SENSOR, INSPECTION, Combination
Meter System.>

ECO gauge does not operate.

1. Communication circuit
2. Combination meter

<Ref. to IDI-15, CHECK ECO GAUGE, INSPEC-
TION, Combination Meter System.>

NOTE:
After trip meter is reset, average fuel economy is not
displayed within 1 km and ECO gauge does not op-
erate.

Error display is shown on the odo/
trip meter.
(Except for meter with MID)

Communication circuit

<Ref. to IDI-17, COMMUNICATION ERROR DIS-
PLAY, INSPECTION, Combination Meter System.>

Error display is shown on the
Instantaneous/Average fuel econ-
omy and Estimated driving dis-
tance in the multi-information
display.

1. Communication circuit

<Ref. to LAN(diag)-2, Basic Diagnostic Proce-
dure.>

Error display is shown on the
Ambient temperature in the multi-
information display.

1. Communication circuit
2. Ambient sensor

<Ref. to LAN(diag)-2, Basic Diagnostic Proce-
dure.>
<Ref. to IDI-15, CHECK AMBIENT SENSOR,
INSPECTION, Combination Meter System.>

IDI-11

Combination Meter System

INSTRUMENTATION/DRIVER INFO

5. CHECK POWER SUPPLY AND GROUND CIRCUIT

Step

Check

Yes

No

1

CHECK POWER SUPPLY FOR COMBINA-
TION METER.
1) Remove the combination meter. <Ref. to
IDI-22, REMOVAL, Combination Meter.>
2) Disconnect the combination meter harness
connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between combination
meter connector and chassis ground.

Connector & terminal

(i10) No. 3 (+) — Chassis ground (–):

Is the voltage 10 V or more?

Go to step 2.

Check the harness
for open or short
between the igni-
tion switch and
combination meter.

2

CHECK POWER SUPPLY FOR COMBINA-
TION METER.
Measure the voltage between combination
meter connector and chassis ground.

Connector & terminal

(i10) No. 1 (+) — Chassis ground (–):

Is the voltage 10 V or more?

Go to step 3.

Check the harness
for open or short
between the fuse
and combination
meter.

3

CHECK GROUND CIRCUIT OF COMBINA-
TION METER.
1) Turn the ignition switch to OFF.
2) Measure the resistance of harness between
combination meter connector and chassis
ground.

Connector & terminal

Normal meter model:
(i10) No. 11 — Chassis ground:
(i10) No. 12 — Chassis ground:
Multi information display model:
(i10) No. 11 — Chassis ground:
(i10) No. 12 — Chassis ground:

Is the resistance less than 10

:? Replace the meter

case assembly.

Repair the wiring
harness.

IDI-12

Combination Meter System

INSTRUMENTATION/DRIVER INFO

6. CHECK THE ABSCM OR VDCCM

7. CHECK ENGINE CONTROL MODULE (ECM)

Step

Check

Yes

No

1

CHECK VEHICLE SPEED SIGNAL.
1) Lift up the vehicle and support it with rigid
racks.
2) Remove the combination meter with har-
ness connector.
3) Drive the vehicle faster than 10 km/h (6 MPH).

WARNING:
Be careful not to get caught in the running
wheels.
4) Measure the voltage between combination
meter connector and chassis ground.

Connector & terminal

(i10) No. 19 (+) — Chassis ground (–):

Is the voltage less than 1 V

mo

5 V or more?

Replace the meter
case assembly.

Go to step 2.

2

CHECK HARNESS BETWEEN ABSCM OR
VDCCM AND COMBINATION METER.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ABSCM or
VDCCM and combination meter.
3) Measure the resistance between ABSCM or
VDCCM harness connector and the combina-
tion meter harness connector.

Connector & terminal

Model without VDC

(B301) No. 23 — (i10) No. 19:

Model with VDC

(B310) No. 33 — (i10) No. 19:

Is the resistance less than 10

:? Model without

VDC: Check the
ABSCM. <Ref. to
ABS(diag)-2, Basic
Diagnostic Proce-
dure.> Model with
VDC: Check the
VDCCM. <Ref. to
VDC(diag)-2,
Basic Diagnostic
Procedure.>

Repair the wiring
harness.

Step

Check

Yes

No

1

CHECK ECM SIGNAL.
1) Start the engine.
2) Measure the voltage between ECM connec-
tor and chassis ground.

Connector & terminal

(B136) No. 22 (+) — Chassis ground (–):

Is the voltage 0

mo 14 V or

more?

Go to step 2.

Inspect the ECM.
<Ref. to
EN(H4SO)(diag)-
2, Basic Diagnostic
Procedure.> <Ref.
to
EN(H4DOTC)(diag
)-2, Basic Diagnos-
tic Procedure.>
<Ref. to
EN(H6DO)(diag)-
2, Basic Diagnostic
Procedure.>

2

CHECK HARNESS BETWEEN COMBINA-
TION METER AND ECM.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ECM and
combination meter.
3) Measure the resistance between ECM har-
ness connector and combination meter harness
connector.

Connector & terminal

(B136) No. 22 — (i10) No. 20:

Is the resistance less than 10

:? Replace the meter

case assembly.

Repair the wiring
harness.