Suzuki Grand Vitara JB416 / JB420. Manual - part 173

3C-6 Transfer: Motor-Shift Type (Transfer with Shift Actuator)

The driving force from the transmission is transmitted from the transfer input gear to the rear output shaft, as in the 
case of 4H position. Also, as the front drive shaft and front drive sprocket bush are engaged via differential lock clutch 
sleeve, the driving force from the input gear is locked and transmitted to the rear output shaft.

B

[A]

[B]

1

2

4

3

5

7

10

6

8

9

11

12

13

14

A

4

5

I5JB0A332004-03

[A]: Transfer position indicator

5. Shift cam

11. Rear output shaft

[B]: Transfer switch

6. Differential lock shift fork

12. Front drive shaft

1. 4L/N switch

7. Input gear

13. Drive chain

2. Center differential lock switch

8. Differential lock clutch sleeve

14. Front output shaft

3. Transfer actuator

9. Front drive sprocket bush

4. Shift fork pin

10. Front drive sprocket

Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-7

N (Neutral) Position
When N position is selected from 4H position by turning the transfer switch, the transfer shift control actuator motor 
runs and shift cam rotates in the arrow direction “A”. The shift cam shifts the High / Low shift fork in the arrow direction 
“B”, and the reduction shift sleeve moves in the arrow direction “B”. Also, the shift cam shifts the differential lock shift 
fork in the arrow direction “C”, and the differential lock clutch sleeve also moves in the arrow direction “C”.
The driving force from the transmission is transmitted to the transfer input gear. However, as the reduction shift sleeve 
is not engaged with the transfer input gear and low gear, the driving force is not transmitted to the rear output shaft and 
front output shaft.

A

C

B

[A]

[B]

1

2

5

4

4

3

5

9

8

6

7

11

12

13

10

I5JB0A332005-01

[A]: Transfer position indicator 

4. Shift fork pin

9. Reduction shift sleeve

[B]: Transfer switch

5. Shift cam

10. Differential lock clutch sleeve

1. 4L/N switch

6. High / Low shift fork

11. Rear output shaft

3C-8 Transfer: Motor-Shift Type (Transfer with Shift Actuator)

4L-lock (4WD Low Center Differential Lock) Position
When 4L-lock position is selected from 4H-lock position by turning the transfer switch, the transfer shift control 
actuator motor runs and shift cam rotates in the arrow direction “A”. The shift cam shifts the High/Low shift fork in the 
arrow direction “B”, and the reduction shift sleeve moves in the arrow direction “B”. Also, the shift cam shifts the 
differential lock shift fork in the arrow direction “C”, and the differential lock clutch sleeve also moves in the arrow 
direction “C”.
The driving force from the transmission is transmitted from the transfer low gear, through the transfer input gear and 
transfer counter gear with the speed reduced. At this time, as the center LSD case and transfer low gear are engaged 
via reduction shift sleeve, the driving force is transmitted to the rear output shaft.
The driving force of the rear output shaft makes the front output shaft rotate via the differential lock clutch sleeve as in 
the case of 4H-lock position.

2. Center differential lock switch

7. Differential lock shift fork

12. Drive chain

3. Transfer actuator

8. Input gear

13. Front output shaft

A

B

C

[A]

[B]

1

2

5

4

4

3

5

9

8

6

7

11

10

12

13

17

15

18

16

14

19

I5JB0A332006-02

[A]: Transfer position indicator

6. High / Low shift fork 

13. Rear output shaft

[B]: Transfer switch

7. Differential lock shift fork

14. Center LSD case

Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-9

Input / Output Signal Table of 4WD Control Module

S5JB0A3311008

4WD control module outputs the following signals to actuators, indicators, warning buzzer, according to the transfer 
switch operation.

1. 4L/N switch 

8. Input gear

15. Front drive shaft

2. Center differential lock switch

9. Reduction shift sleeve

16. Counter gear

3. Transfer actuator

10. Differential lock clutch sleeve

17. Drive chain

4. Shift fork pin

11. Front drive sprocket 

18. Front output shaft

5. Shift cam

12. Front drive sprocket bush

19. Low gear

Output signal (to each component parts)

Transfer 

shift 

actuator

Differential 

lock 

indicator

4L indicator N indicator

Warning 

buzzer

Input signal

Transfer switch

{

{

{

{

{

CPP switch

{

{

{

{

TCM

{

{

{

{

ABS hydraulic unit / control 
module

{

{

{

{

{

4L/N switch

{

{

{

Center differential lock switch

{

{