Subaru Legacy III (2000-2003 year). Service manual — part 367

EN(H6DO)-270

ENGINE (DIAGNOSTICS)

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)

BP:DTC P0565 — CRUISE CONTROL ON SIGNAL —

DTC DETECTING CONDITION:

• Two consecutive driving cycles with fault

CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H6DO)-54, OP-
ERATION, Clear Memory Mode.>
and Inspection Mode <Ref. to EN(H6DO)-47, OPERATION, Inspec-
tion Mode.>.
WIRING DIAGRAM:

EN-01096

B94

1 2 3 4 5 6 7 8 9 10

11 12 13 14 15 16 17 18 19 20

CCM

3

22

B94

B55

TCM

B55

1 2 3 4

10 11 12
19 20 21

13

5 6

14 15

7

8

9

16

17

18

22

23

24

EN(H6DO)-271

ENGINE (DIAGNOSTICS)

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)

Step

Value

Yes

No

1

CHECK HARNESS BETWEEN TCM AND
CCM CONNECTOR.
1) Turn ignition switch to OFF.
2) Disconnect connectors from TCM and

CCM.

3) Measure resistance of harness between

TCM and CCM connector.

Connector & terminal

(B55) No. 22 — (B94) No. 3:

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

1

Go to step 2.

Repair open circuit
in harness
between TCM and
CCM connector.

2

CHECK HARNESS BETWEEN TCM AND
CCM CONNECTOR.
Measure resistance of harness between TCM
and chassis ground.

Connector & terminal

(B55) No. 22 — Chassis ground:

Is the measured value less than the specified
value?

10

Repair short circuit
in harness
between TCM and
CCM connector.

Go to step 3.

3

CHECK INPUT SIGNAL FOR TCM.
1) Connect connector to TCM and CCM.
2) Lift-up the vehicle or set the vehicle on free

rollers.

CAUTION:

On AWD models, raise all wheels off
ground.

3) Start the engine.
4) Cruise control main switch to ON.
5) Move selector lever to “D” and slowly

increase vehicle speed to 50 km/h (31
MPH).

6) Cruise control command switch to ON.
7) Measure voltage between TCM and chas-

sis ground.

Connector & terminal

(B55) No. 22 (+) — Chassis ground (

−−−−

):

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

1 V

Go to step 4.

Check cruise con-
trol command
switch circuit.
<Ref. to CC-8,
Cruise Control
Command
Switch.>

4

CHECK POOR CONTACT.
Check poor contact in TCM connector.
Is there poor contact in TCM connector?

There is poor contact.

Repair poor con-
tact in TCM con-
nector.

Replace TCM.
<Ref. to AT-76,
Transmission Con-
trol Module
(TCM).>

EN(H6DO)-272

ENGINE (DIAGNOSTICS)

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)

BQ:DTC P0604 — INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY

(RAM) ERROR —

DTC DETECTING CONDITION:

• Immediately at fault recognition

TROUBLE SYMPTOM:

• Engine does not start.
• Engine stalls.

CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H6DO)-54, OP-
ERATION, Clear Memory Mode.>
and Inspection Mode <Ref. to EN(H6DO)-47, OPERATION, Inspec-
tion Mode.>.
WIRING DIAGRAM:

EN-01083

D10

A14

D2

A2

D3

E49

B252

D9

C8

D8

D31

D21

5

1

3

B47

BATTERY

MAIN RELAY

1

2

3

5

6

4

F44

B61

SBF-5

6

F46

B108

2

SBF-4

SBF-1

4

1

B72

IGNITION
SWITCH

ECM

B134

A:

B136

C:

B137

D:

A22

7

B137

B136

C:

D:

A: B134

B47

3

4

1

2

5

6

B72

F44

F46

3 4

1 2

B252

C18

C17

TO FRONT OXYGEN (A/F) SENSOR

6

1 2 3 4
5 6 7 8

3 4

1 2

1

2

7

8

9

5

6

3

4

10 11 12

19 20 21
29 30 31

13 14 15 16 17

27 28

18

22 23 24 25 26

1 2

7

8 9

5

6

3

4

10 11 12
19 20 21

13 14 15 16

17 18

22 23 24

1 2 3 4

10 11 12

19 20 21

13

5

6

14 15

7

8 9

16 17

18

22

1 2 3 4
5 6 7 8

LHD

RHD

RHD

RHD

RHD

LHD

LHD

LHD

EN(H6DO)-273

ENGINE (DIAGNOSTICS)

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)

Step

Value

Yes

No

1

CHECK ANY OTHER DTC ON DISPLAY.
Does the Subaru Select Monitor or OBD-II
general scan tool indicate DTC P0604?

DTC P0604 is indicated.

Replace ECM.
<Ref. to
FU(H6DO)-46,
Engine Control
Module.>

It is not necessary
to inspect DTC
P0604.

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Текст

Политика конфиденциальности