Subaru Legacy III (2000-2003 year). Manual — part 702

ABS-26

ABS (DIAGNOSTICS)

LIST OF DIAGNOSTICS TROUBLE CODE (DTC)

33

Front left inlet valve
malfunction

Front left inlet valve
malfunction

<Ref. to ABS-104, DTC 33 FRONT LEFT INLET VALVE MAL-
FUNCTION, Diagnostics Chart with Subaru Select Monitor.>

34

Front left outlet valve
malfunction

Front left outlet valve
malfunction

<Ref. to ABS-108, DTC 34 FRONT LEFT OUTLET VALVE
MALFUNCTION, Diagnostics Chart with Subaru Select Moni-
tor.>

35

Rear right inlet valve
malfunction

Rear right inlet valve
malfunction

<Ref. to ABS-104, DTC 35 REAR RIGHT INLET VALVE MAL-
FUNCTION, Diagnostics Chart with Subaru Select Monitor.>

36

Rear right outlet valve
malfunction

Rear right outlet valve
malfunction

<Ref. to ABS-108, DTC 36 REAR RIGHT OUTLET VALVE
MALFUNCTION, Diagnostics Chart with Subaru Select Moni-
tor.>

37

Rear left inlet valve mal-
function

Rear left inlet valve
malfunction

<Ref. to ABS-106, DTC 37 REAR LEFT INLET VALVE MAL-
FUNCTION, Diagnostics Chart with Subaru Select Monitor.>

38

Rear left outlet valve
malfunction

Rear left outlet valve
malfunction

<Ref. to ABS-110, DTC 38 REAR LEFT OUTLET VALVE MAL-
FUNCTION, Diagnostics Chart with Subaru Select Monitor.>

41

ABS control module
malfunction

ABS control module
and hydraulic control
unit malfunction

<Ref. to ABS-112, DTC 41 ABS CONTROL MODULE MAL-
FUNCTION, Diagnostics Chart with Subaru Select Monitor.>

42

Power supply voltage
too low

Power supply voltage
too low

<Ref. to ABS-114, DTC 42 POWER SUPPLY VOLTAGE TOO
LOW, Diagnostics Chart with Subaru Select Monitor.>

42

Power supply voltage
too high

Power supply voltage
too high

<Ref. to ABS-116, DTC 42 POWER SUPPLY VOLTAGE TOO
HIGH, Diagnostics Chart with Subaru Select Monitor.>

44

ABS-AT control (Non
Controlled)

ABS-AT control (Non
Controlled)

<Ref. to ABS-118, DTC 44 ABS-AT CONTROL (NON CON-
TROLLED), Diagnostics Chart with Subaru Select Monitor.>

44

ABS-AT control (Con-
trolled)

ABS-AT control (Con-
trolled)

<Ref. to ABS-120, DTC 44 ABS-AT CONTROL (CON-
TROLLED), Diagnostics Chart with Subaru Select Monitor.>

51

Valve relay malfunction

Valve relay malfunction

<Ref. to ABS-122, DTC 51 VALVE RELAY MALFUNCTION,
Diagnostics Chart with Subaru Select Monitor.>

51

Valve relay ON failure

Valve relay ON failure

<Ref. to ABS-124, DTC 51 VALVE RELAY ON FAILURE, Diag-
nostics Chart with Subaru Select Monitor.>

52

Open circuit in motor
relay circuit

Open circuit in motor
relay circuit

<Ref. to ABS-126, DTC 52 OPEN CIRCUIT IN MOTOR RELAY
CIRCUIT, Diagnostics Chart with Subaru Select Monitor.>

52

Motor relay ON failure

Motor relay ON failure

<Ref. to ABS-128, DTC 52 MOTOR RELAY ON FAILURE,
Diagnostics Chart with Subaru Select Monitor.>

52

Motor malfunction

Motor malfunction

<Ref. to ABS-130, DTC 52 MOTOR MALFUNCTION, Diagnos-
tics Chart with Subaru Select Monitor.>

54

Stop light switch signal
circuit malfunction

Stop light switch signal
circuit malfunction

<Ref. to ABS-132, DTC 54 STOP LIGHT SWITCH SIGNAL
CIRCUIT MALFUNCTION, Diagnostics Chart with Subaru
Select Monitor.>

56

Open or short circuit in
G sensor circuit

Open or short circuit in
G sensor circuit

<Ref. to ABS-134, DTC 56 OPEN OR SHORT CIRCUIT IN G
SENSOR CIRCUIT, Diagnostics Chart with Subaru Select Mon-
itor.>

56

Battery short in G sen-
sor circuit

Battery short in G sen-
sor circuit

<Ref. to ABS-138, DTC 56 BATTERY SHORT IN G SENSOR
CIRCUIT, Diagnostics Chart with Subaru Select Monitor.>

56

Abnormal G sensor
high

µ

output

Abnormal G sensor
high

µ

output

<Ref. to ABS-142, DTC 56 ABNORMAL G SENSOR HIGH M
OUTPUT, Diagnostics Chart with Subaru Select Monitor.>

56

Detection of G sensor
stick

Detection of G sensor
stick

<Ref. to ABS-146, DTC 56 DETECTION OF G SENSOR
STICK, Diagnostics Chart with Subaru Select Monitor.>

DTC No.

Display screen

Contents of diagnosis

Index No.

ABS-27

ABS (DIAGNOSTICS)

LIST OF DIAGNOSTICS TROUBLE CODE (DTC)

MEMO:

ABS-28

ABS (DIAGNOSTICS)

DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR

12.Diagnostics Chart with Diagnosis Connector

A: ABS WARNING LIGHT DOES NOT COME ON.

DIAGNOSIS:
• ABS warning light circuit is open or shorted.
TROUBLE SYMPTOM:
• When ignition switch is turned ON (engine OFF), ABS warning light does not come on
WIRING DIAGRAM:

ABS00308

24

1

23

5

4

18

20

22

4

ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT

F49

B82

B81

8

DIAGNOSIS
TERMINAL

DIAGNOSIS
CONNECTOR

B36

B4 B5 B6

A4 A5 A6

C5 C6

F6

D4 D5 D6

F1

H1

C4

G6

G1

C2

K1

M1 M2

K6

L1

D1 D2

A1 A2
B1 B2

I6

J6

L2

I1

J1

H6

M4 M5 M6

L4 L5 L6

N5 N6

O4 O5 O6

N4

P4 P5

N2

O1 O2

P1 P2

N3

O3

P3

P6

A3

B3

C3

E4 E5 E6

E1 E2

i10

1 2 3 4 5 6 7

8 9 10 11 12 13 14

15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22

27 28 29 30 31

23

24

25

26

F49

B82

1 2
4 5 6 7

3
8

i12

1 2 3

4 5 6

7 8 9 10 11 12 13 14

NO

. 8 30A

NO

. 18 15A

BATTERY

SBF-1 100A

SBF-3 50A

SBF-4 50A

IGNITION
SWITCH

COMBINATION
METER

ABS

WARNING

LIGHT

B:

i11

C:

i12

A:

i10

G1

i1

B36

GENERATOR

B5

IGNITION
RELAY

NO

. 5 15A

F45

1 2 3

4 5 6 7

8 9 10 11

12 13 14 15 16

TB

1

*

2

*

3

*

4

*

RHD

LHD

1

*

2

*

3

*

:TURBO A8
NA C3

: LHD

RHD

: TURBO B2
NA C11

: TURBO
ENGINE
MODEL

4

*

: LHD

RHD

TB

F2

F45

B100

B62

1 2 3
8 9 10

4

11 12 13 14 15 16

5 6 7

B:

i11

F2

3 4

1 2

8 9 10 11

12 13 14 15 16 17 18 19 20 21 22 23 24

5 6

7

ABS-29

ABS (DIAGNOSTICS)

DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR

Step

Value

Yes

No

1

CHECK IF OTHER WARNING LIGHTS TURN
ON.
Turn ignition switch to ON (engine OFF).
Do other warning lights turn on?

Other warning light turns on.

Go to step 2.

Repair combina-
tion meter. -<Ref.
to IDI-14, Combi-
nation Meter
Assembly.>

2

CHECK ABS WARNING LIGHT BULB.
1) Turn ignition switch to OFF.
2) Remove combination meter.
3) Remove ABS warning light bulb from com-

bination meter.
Is ABS warning light bulb OK?

OK.

Go to step 3.

Replace ABS
warning light bulb.
<Ref. to IDI-14,
Combination
Meter Assembly.>

3

CHECK BATTERY SHORT OF ABS WARN-
ING LIGHT HARNESS.
1) Disconnect connector (B62) or (B100) from

connector (F45) or (F2).

2) Measure voltage between connector (B62)

and chassis ground.

Connector & terminal

LHD: (B62) No. 5 (+) — Chassis ground
(

−−−−

):

RHD: (B100) No. 18 (+) — Chassis
ground (

−−−−

):

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

3 V

Go to step 4.

Repair warning
light harness.

4

CHECK BATTERY SHORT OF ABS WARN-
ING LIGHT HARNESS.
1) Turn ignition switch to ON.
2) Measure voltage between connector (B62)

or (B100) and chassis ground.

Connector & terminal

LHD: (B62) No. 5 (+) — Chassis ground
(

−−−−

):

LHD: (B100) No. 18 (+) — Chassis
ground (

−−−−

):

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

3 V

Go to step 5.

Repair warning
light harness.

5

CHECK WIRING HARNESS.
1) Turn ignition switch to OFF.
2) Install ABS warning light bulb from combi-

nation meter.

3) Install combination meter.
4) Turn ignition switch to ON.
5) Measure voltage between connector (B62)

or (B100) and chassis ground.

Connector & terminal

LHD: (B62) No. 5 (+) — Chassis ground
(

−−−−

):

RHD: (B100) No. 18 (+) — Chassis
ground (

−−−−

):

Is the measured value within the specified
range?

10 - 15 V

Go to step 6.

Repair wiring har-
ness.