Subaru Legacy (2005 year). Manual - part 960

IDI-5

INSTRUMENTATION/DRIVER INFO

Combination Meter System

Step 3-1. Press the trip knob, and hold it: Check illumination

Keep the posi-
tion that speci-
fied at step 2-2.

Light OFF

Varying from the 
highest bright-
ness (ILL6) to 
the lowest lumi-
nescence (ILL1) 
every second. 
After reaching at 
ILL1, repeat it 
from ILL6.

Illumination 
brightness is 
displayed. (From 
ILL6 to ILL1)

“

▼3” is dis-

played.

Varying from the 
highest bright-
ness (ILL6) to 
the lowest lumi-
nescence (ILL1) 
every second. 
After reaching at 
ILL1, repeat it 
from ILL6.

Not beep.

Step 3-2. Release the trip knob: Specifying the illumination brightness

Keep the posi-
tion that speci-
fied at step 2-2.

Light OFF

Keep the bright-
ness at the time 
when the trip 
knob is 
released.

Display the 
brightness at the 
time when the 
trip knob is 
released.

“3” is displayed.

Keep the bright-
ness at the time 
when the trip 
knob is 
released.

Not beep.

Step 4-1. Press the trip knob: Check the beeping of SPORT shift buzzer (AT model)

All meter indica-
tor needle 
returns to lowest 
position.

Light OFF

Light at the 
highest bright-
ness. Keep the 
position indi-
cated that set in 
step 1-2.

Illumination 
brightness is 
displayed.

“

▲▼8” is dis-

played. Blinks 
with buzzer.

Light at the 
highest bright-
ness.

SPORT shift 
buzzer beeps.

Step 4-2. Press the trip knob: Check the VDC indicator light (Model with VDC)

All meter indica-
tor needle 
returns to lowest 
position.

VDC warning 
light and VDC 
operation indica-
tor light blink.

Light at the 
highest bright-
ness. Keep the 
position indi-
cated that set in 
step 1-2.

Illumination 
brightness is 
displayed.

“4” is displayed.

Light at the 
highest bright-
ness.

Not beep.

Step 4-3. Press the trip knob: Check the speed warning buzzer (KS model)

Speedometer 
indicates the 
vehicle speed, 
which was 
detected when 
the speed warn-
ing started.

Light OFF

Light at the 
highest bright-
ness. Keep the 
position indi-
cated that set in 
step 1-2.

Illumination 
brightness is 
displayed.

“4” is displayed.

Light at the 
highest bright-
ness.

Speed warning 
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.

Speedometer, 
tachometer, fuel 
gauge, engine 
coolant temper-
ature gauge

Microcomputer 
running type 
warning light, 
indicator light

AT select lever 
position indica-
tor light

Odo/Trip indica-
tor

SPORT shift 
indicator

Illumination 
(indicator nee-
dle, plate, ring, 
LCD)

Buzzer (SPORT 
shift buzzer, 
speed warning 
buzzer)

IDI-6

Vehicle-id:
SIE-id:S907607a10:B:INSPECTION
∼

INSTRUMENTATION/DRIVER INFO

Combination Meter System

• Illuminating order table

3. 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 of more 
than 2 mm (0.08 in) in diameter.

Illuminating 
order

1

2

3

4

5

6

7

8

9

10

11

Go back 

to 1 and 

repeat

Trip  meter  A/B

AB

A

B

A

B

A

B

A

B

A

B

Odo/trip meter

8888.8

888888

00000

000000

1111.1

111111

22222

222222

3333.3

333333

44444

444444

5555.5

555555

66666

666666

7777.7

777777

88888

888888

9999.9

999999

SPORT shift 
indicator

8

1

2

3

4

5

1

2

3

4

5

▲

▲

▲

▲

▲

▲

▲

▼

▼

▼

▼

▼

▼

▼

AT select lever 
position indica-
tor

P

P

R

R

R

N

N

N

D

D

D

Display time 
(sec.)

1

0.5

0.5

0.5

0.5

0.5

0.5

0.5

0.5

0.5

0.5

Symptom

Repair order

Reference

Combination meter assembly does not operate.

(1) Power supply
(2) Ground circuit
(3) Combination meter

<Ref. to IDI-7, CHECK 
POWER SUPPLY AND 
GROUND CIRCUIT, 
INSPECTION, Combi-
nation Meter System.>

Speedometer does not operate.

(1) ABSCM or VDCCM
(2) Harness
(3) Combination meter

<Ref. to IDI-7, CHECK 
ABSCM OR VDCCM, 
INSPECTION, Combi-
nation Meter System.>

Tachometer does not operate.

(1) ECM
(2) Harness
(3) Combination meter

<Ref. to IDI-8, CHECK 
ENGINE CONTROL 
MODULE, INSPEC-
TION, Combination 
Meter System.>

Fuel gauge does not operate.

(1) Communication circuit
(2) Fuel level sensor
(3) Harness
(4) Combination meter

<Ref. to IDI-8, CHECK 
FUEL LEVEL SEN-
SOR., INSPECTION, 
Combination Meter 
System.>

Engine coolant temperature gauge does not oper-
ate.

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

<Ref. to IDI-10, CHECK 
ENGINE COOLANT 
TEMPERATURE SEN-
SOR., INSPECTION, 
Combination Meter 
System.>

Error display is shown on the odo/trip meter.

Communication circuit

<Ref. to IDI-10, COM-
MUNICATION ERROR 
DISPLAY, INSPEC-
TION, Combination 
Meter System.>

IDI-7

INSTRUMENTATION/DRIVER INFO

Combination Meter System

4. CHECK POWER SUPPLY AND GROUND CIRCUIT

5. CHECK ABSCM OR VDCCM

Step

Check

Yes

No

1

CHECK POWER SUPPLY FOR COMBINA-
TION METER.
1) Remove the combination meter. <Ref. to 
IDI-15, 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, No. 4 (+) — Chassis ground (

−

):

Is the voltage more than 10 V? 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, No. 2 (+) — Chassis ground (

−

):

Is the voltage more than 10 V? 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

(i10) No. 11, No. 12 — Chassis ground:

Is the resistance less than 10 
Ω?

Replace the meter 
case assembly.

Repair the wiring 
harness.

Step

Check

Yes

No

1

CHECK VEHICLE SPEED SIGNAL.
1) Lift up the vehicle and support it with rigid 
racks.
2) Drive the vehicle faster than 10 km/h (6 
MPH).

Warning:

Be careful not to get caught in the running
wheels.

3) Measure the voltage between combination 
meter connector and chassis ground.

Connector & terminal

(i10) No. 19 (+) — Chassis ground (

−

):

Is the voltage less than 1 V 
←→ 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 combina-
tion meter harness connector.

Connector & terminal

Model without VDC

(B301) No. 23 — (i10) No. 19:

Model with VDC

(B310) No. 36 — (i10) No. 19:

Is the resistance less than 10 
Ω?

Model without 
VDC: Check the 
ABSCM. <Ref. to 
ABS(diag)-2, 
Basic Diagnostic 
Procedure.> 
Model with VDC: 
Check the 
VDCCM. <Ref. to 
VDC(diag)-2, 
Basic Diagnostic 
Procedure.>

Repair the wiring 
harness.

IDI-8

Vehicle-id:
SIE-id:S907607a10:B:INSPECTION
∼

INSTRUMENTATION/DRIVER INFO

Combination Meter System

6. CHECK ENGINE CONTROL MODULE

7. CHECK FUEL LEVEL SENSOR.

Step

Check

Yes

No

1

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

Connector & terminal

2.0 L non-turbo model and 2.5 L KS, KA 
model

(B135) No. 27 (+) — Chassis ground (

−

):

2.0 L turbo model, 3.0 L model and 2.5 L 
EC, K4, EK model

(B134) No. 23 (+) — Chassis ground (

−

):

Is the voltage more than 0 

←→ 

14 V?

Go to step 2.

Check the ECM. 
<Ref. to EN(H4SO 
2.0)(diag)-2, Basic 
Diagnostic Proce-
dure.> <Ref. to 
EN(H4SO 
2.5)(diag)-2, Basic 
Diagnostic Proce-
dure.> <Ref. to 
EN(H4DOTC)(diag
)-2, Basic Diag-
nostic Proce-
dure.> <Ref. to 
EN(H6DO)(diag)-
2, Basic Diagnos-
tic 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 har-
ness connector.

Connector & terminal

2.0 L non-turbo model and 2.5 L KS, KA 
model

(B135) No. 27 — (i10) No. 20:

2.0 L turbo model, 3.0 L model and 2.5 L 
EC, K4, EK model

(B134) No. 23 — (i10) No. 20:

Is the resistance less than 10 
Ω?

Replace the meter 
case assembly.

Repair the wiring 
harness.

Step

Check

Yes

No

1

CHECK COMMUNICATION ERROR DIS-
PLAY.
1) Set the ignition switch to ON.
2) Check that the error code is displayed in 
odo/trip meter.

Is the error code “Er xx” dis-
played in odo/trip meter?

Check the commu-
nication circuit. 
<Ref. to IDI-10, 
COMMUNICA-
TION ERROR 
DISPLAY, 
INSPECTION, 
Combination 
Meter System.>

Go to step 2.

2

CHECK FUEL LEVEL SENSOR.
1) Remove the fuel level sensor. <Ref. to 
FU(H4SO 2.0)-49, REMOVAL, Fuel Level Sen-
sor.> <Ref. to FU(H4SO 2.5)-52, REMOVAL, 
Fuel Level Sensor.> <Ref. to FU(H4DOTC)-50, 
REMOVAL, Fuel Level Sensor.> <Ref. to 
FU(H6DO)-50, REMOVAL, Fuel Level Sen-
sor.>
2) Measure the resistance between fuel level 
sensor terminals when the float is in FULL or 
EMPTY position.

Terminals

No. 1 — No. 4:

Is the resistance 1.0 — 3.0 

Ω 

(FULL) or 31 — 33 

Ω 

(EMPTY)?

Go to step 3.

Replace the fuel 
level sensor.