Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual - part 425

6MT-37

Preparation for Overhaul

MANUAL TRANSMISSION AND DIFFERENTIAL

7. Preparation for Overhaul

A: PROCEDURE

1) Clean oil, grease, dirt and dust from the trans-

mission.

2) Attach the transmission to the ST.

ST 18632AA000 STAND ASSY

3) Apply oil to rotating parts before assembly.

4) When  reusing  disassembled  parts,  reinstall  in

the original positions and directions.

5) Gaskets, lock washers and lock nuts must be re-

placed with new parts.

6) Apply liquid gasket to the specified areas to pre-

vent leakage.

MT-00468

ST

ST

ST

6MT-38

Air Breather Hose

MANUAL TRANSMISSION AND DIFFERENTIAL

8. Air Breather Hose

A: REMOVAL

Disconnect the air breather hose.

B: INSTALLATION

Connect the air breather hose.

C: INSPECTION

Make sure the hose is not cracked or clogged.

MT-01707

MT-01707

6MT-39

Back-up Light Switch

MANUAL TRANSMISSION AND DIFFERENTIAL

9. Back-up Light Switch

A: REMOVAL

1) Remove  the  manual  transmission  assembly

from  the  vehicle.  <Ref.  to  6MT-31,  REMOVAL,

Manual Transmission Assembly.>

2) Disconnect the back-up light switch connector.

3) Disconnect the back-up light switch.

B: INSTALLATION

1) Install the back-up light switch.
NOTE:

Use a new gasket.
Tightening torque:

32 N·m (3.3 kgf-m, 23.6 ft-lb)

2) Connect the back-up light switch connector.

3) Install the manual transmission assembly to the

vehicle. <Ref. to 6MT-33, INSTALLATION, Manual

Transmission Assembly.>

(A) Back-up light switch connector (gray)
(B) Neutral position switch connector (brown)

(C) Clip

(A) Back-up light switch
(B) Neutral position switch

MT-00471

(A)

(B)

(C)

(C)

MT-00472

(A)

(B)

(A) Back-up light switch
(B) Neutral position switch

(A) Back-up light switch connector (gray)
(B) Neutral position switch connector (brown)

(C) Clip

MT-00472

(A)

(B)

MT-00471

(A)

(B)

(C)

(C)

6MT-40

Back-up Light Switch

MANUAL TRANSMISSION AND DIFFERENTIAL

C: INSPECTION

1) Disconnect the ground cable from battery.

2) Remove  the  intercooler.  <Ref.  to  IN(STI)-12,

REMOVAL, Intercooler.>

3) Disconnect the transmission harness and chas-

sis harness.

4) Measure  the  resistance  between  the  back-up

light switch terminals. If it is not within the specifica-

tion, replace the back-up light switch.

(A) Transmission harness connectors
(B) Pitching stopper

Gear shift position

Terminal No.

Standard

Back position

3 and 6

Less than 1 Ω

Other positions

1 MΩ or more

MT-01741

(A)

(B)

2

5

6

1

4

3

MT-00946