Subaru Legacy IV (2008 year). Manual - part 651

CS-11

AT Shift Lock Control System

CONTROL SYSTEMS

B: ELECTRICAL SPECIFICATION

Item

Connector No.

Terminal No.

Input/Output signal

Measured value and measuring conditions

Battery power supply

B281

1

9 — 16 V

2

Ignition power supply

i84

1

10 — 15 V when ignition switch is at ON or START.

i84

24

10 — 15 V when ignition switch is at ACC.

TCM (“P” range)

B280

20

Pulse signal

B280

30

Stop light switch

B281

23

9 — 16 V when stop light switch is ON.

0 V when stop light switch is OFF.

“P” range switch

B281

13

0 V when select lever is in “P” range.

9 — 16 V when select lever is in other ranges than “P” range.

Shift lock solenoid signal

B280

6

8.5 — 16 V when shift lock is released.

0 V when shift lock is operating.

Key warning switch signal

B281

7

9 — 16 V when key is inserted.

0 V when key is removed.

Key lock solenoid signal

B280

5

7.5 — 16 V when ignition switch is turned ON, with select 

lever in “P” range and brake switch ON.

0 V at other conditions than above.

Ground

B280

22

 — 

i84

21

B281

8

9

SL-00692

7

19
28

6

18
27

5

17

4

16
26

15
25

14
24

13 12

23

11
22

3

10

2
9

21

1
8

20

7

20
30

6

19
29

18
28

5

17

4

16
27

15
26

14 13

25

12
24

11
23

3

10

2
9

22

1
8

21

B280

B281

8

23
35

7

22
34

21

6

20
33

5

19
32

18
31

17
30

16 15

29

14
28

4

13
27

3

12
26

11

2

10
25

1
9

24

i84

A:

B:

C:

TO

TO

TO

CS-12

AT Shift Lock Control System

CONTROL SYSTEMS

C: WIRING DIAGRAM

(1)

Ignition switch

(5)

TCM (shift range information)

(8)

“P” range switch

(2)

Stop light switch

(6)

Key lock solenoid

(9)

Battery

(3)

Key warning switch

(7)

Shift lock solenoid

(10)

VDC/ABS (vehicle speed signal)

(4)

Body integrated unit

 

 

OFF ACC ON

(1)

(2)

(3)

(4)

(9)

(6)

(7)

(8)

(5)

(10)

CS-00909

CS-13

AT Shift Lock Control System

CONTROL SYSTEMS

D: INSPECTION

1. SHIFT LOCK OPERATION

Step

Check

Yes

No

1

CHECK COMMUNICATION OF SUBARU SE-
LECT MONITOR.
1) Turn the ignition switch to ON.
2) Using the Subaru Select Monitor, check 
whether communication to all systems can be 
executed normally.

Is the system name displayed? Go to step 2.

Perform the 
inspection follow-
ing the diagnostic 
procedure in the 
LAN section. <Ref. 
to LAN(diag)-2, 
Basic Diagnostic 
Procedure.>

2

CHECK SHIFT LOCK.
1) Turn the ignition switch to ON.
2) Shift the select lever to the “P” range.

While brake pedal is not 
depressed, is it possible to 
move the select lever from the 
“P” range to other ranges?

Perform the 
inspection of 
“SELECT LEVER 
CANNOT BE 
LOCKED OR 
RELEASED”.
<Ref. to CS-17, 
SELECT LEVER 
CANNOT BE 
LOCKED OR 
RELEASED, 
INSPECTION, AT 
Shift Lock Control 
System.>

Go to step 3.

3

CHECK SHIFT LOCK.

While brake pedal is 
depressed, is it possible to 
move the select lever from the 
“P” range to other ranges?

Go to step 4.

Perform the 
inspection of 
“SELECT LEVER 
CANNOT BE 
LOCKED OR 
RELEASED”. 
<Ref. to CS-17, 
SELECT LEVER 
CANNOT BE 
LOCKED OR 
RELEASED, 
INSPECTION, AT 
Shift Lock Control 
System.>

4

CHECK SHIFT LOCK.
Shift the select lever to “N” range.

Is it possible to move the select 
lever from the “N” range to the 
“P” range?

Go to step 5.

Perform the 
inspection of 
“SELECT LEVER 
CANNOT BE 
LOCKED OR 
RELEASED”. 
<Ref. to CS-17, 
SELECT LEVER 
CANNOT BE 
LOCKED OR 
RELEASED, 
INSPECTION, AT 
Shift Lock Control 
System.>

CS-14

AT Shift Lock Control System

CONTROL SYSTEMS

5

CHECK SHIFT LOCK.
1) Shift the select lever to “N” range.
2) Turn the ignition switch to OFF.

While brake pedal is 
depressed, is it possible to 
move the select lever from the 
“N” range to the “P” range?

Go to step 6.

Perform the 
inspection of 
“SELECT LEVER 
CANNOT BE 
LOCKED OR 
RELEASED”. 
<Ref. to CS-17, 
SELECT LEVER 
CANNOT BE 
LOCKED OR 
RELEASED, 
INSPECTION, AT 
Shift Lock Control 
System.>

6

CHECK KEY INTERLOCK.
1) Turn the ignition switch to OFF.
2) Shift the select lever to other than “P” range.

Can the ignition key be 
removed?

Perform the 
inspection of “KEY 
INTERLOCK CAN-
NOT BE LOCKED 
OR RELEASED”. 
<Ref. to CS-20, 
KEY INTERLOCK 
CANNOT BE 
LOCKED OR 
RELEASED, 
INSPECTION, AT 
Shift Lock Control 
System.>

Go to step 7.

7

CHECK KEY INTERLOCK.
Shift the select lever to the “P” range.

Can the ignition key be 
removed?

AT shift lock sys-
tem is normal.

Perform the 
inspection of “KEY 
INTERLOCK CAN-
NOT BE LOCKED 
OR RELEASED”. 
<Ref. to CS-20, 
KEY INTERLOCK 
CANNOT BE 
LOCKED OR 
RELEASED, 
INSPECTION, AT 
Shift Lock Control 
System.>

Step

Check

Yes

No