Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 449

6MT(diag)-7

Electrical Component Location

MANUAL TRANSMISSION AND DIFFERENTIAL (DIAGNOSTICS)

MT-02310

(13)

MT-02339

(

14

)

MT-02130

(15)

(16)

MT-02117

6MT(diag)-8

Driver’s Control Center Differential (DCCD) Control Module I/O Signal

MANUAL TRANSMISSION AND DIFFERENTIAL (DIAGNOSTICS)

5. Driver’s Control Center Differential (DCCD) Control Module I/O

Signal

A: ELECTRICAL SPECIFICATION

Check with ignition switch ON.

Item

Measured terminal

(Connector & Terminal No.)

Measuring condition

Voltage (V)

Resistance (Ω)

Positive

terminal

Ground

terminal

DCCD output

(B380) No. 15

(B380)

No. 32

When differential is locked

(when DCCD manual mode dis-

play is locked)

5.5 — 8.0

1.2 — 2.5

When differential is free (When

the parking brake is pulled)

Less than 0.5

DCCD power supply

(B380) No. 13

Chassis

ground

Ignition switch ON

10 — 13

—

(B380) No. 14

—

Backup power supply

(B380) No. 12

Chassis

ground

—

10 — 13

—

Ignition power supply

(B380) No. 11

Chassis

ground

Ignition switch ON

10 — 13

—

DCCD relay

(B380) No. 7

Chassis

ground

Ignition switch ON

Less than 1.0

—

Mode change switch

(B380) No. 6

Chassis

ground

When the switch is not pressed

8.0 or more

—

When the switch is pressed

Less than 1

—

Rear differential oil tempera-
ture switch

(B380) No. 5

Chassis

ground

When the rear differential switch

is ON

0.4 or more

—

When the rear differential switch

is OFF

Less than 8.0

—

CAN communication signal (+)

(B380) No. 2

Chassis

ground

Ignition switch ON

Pulse signal

CAN communication signal (–) (B380) No. 18

Chassis

ground

Ignition switch ON

Pulse signal

Data link signal
(Subaru Select Monitor)

(B380) No. 1

Chassis

ground

—

—

—

MT-01684

B380

8

9

10

24 23

25

11

12

13

14

15

26

27

28

16

17

18

19

20

21

30

31

32

6

7

22

1

2

3

4

5

29

TO

6MT(diag)-9

Driver’s Control Center Differential (DCCD) Control Module I/O Signal

MANUAL TRANSMISSION AND DIFFERENTIAL (DIAGNOSTICS)

B: WIRING DIAGRAM

Refer to “WIRING SYSTEM”. <Ref. to WI-72, Driver’s Control Center Differential Control System.>

System ground circuit

(B380) No. 28

Chassis

ground

—

0

Less than 1.0

(B380) No. 29

Chassis

ground

(B380) No. 30

Chassis

ground

(B380) No. 31

Chassis

ground

System ground circuit

(B380) No. 17

Chassis

ground

—

0

Less than 1.0

Up switch

(B380) No. 22

Chassis

ground

When the switch is not pressed/

is pressed

8.0/1.0

Down switch

(B380) No. 4

Chassis

ground

When the switch is not pressed/

is pressed

8.0/1.0

Check with ignition switch ON.

Item

Measured terminal

(Connector & Terminal No.)

Measuring condition

Voltage (V)

Resistance (Ω)

Positive

terminal

Ground

terminal

6MT(diag)-10

Subaru Select Monitor

MANUAL TRANSMISSION AND DIFFERENTIAL (DIAGNOSTICS)

6. Subaru Select Monitor

A: OPERATION

1) Prepare the Subaru Select Monitor kit.

2) Prepare PC with Subaru Select Monitor in-

stalled.

3) Connect the USB cable to SDI (Subaru Diagno-

sis Interface) and USB port on the personal com-

puter (dedicated port for the Subaru Select

Monitor).
NOTE:

The dedicated port for the Subaru Select Monitor

means the USB port which was used to install the

Subaru Select Monitor.

4) Connect the diagnosis cable to SDI.

5) Connect SDI to data link connector located in the

lower portion of the instrument panel (on the driv-

er’s side).

CAUTION:

Do not connect scan tools other than the Suba-

ru Select Monitor.

6) Start the PC.

7) Turn the ignition switch to ON.

8) Run the “PC application for Subaru Select Mon-

itor”.

EN-05692

EN-06148