Page 405 of 801
YH4
GRAND
VITARA
AUTOMATIC TRANSMISSION (4 A / T) 7B1-3
1. Torque converter
2. Overdrive input shaft
3. Oil pump
4. Overdrive brake
5. Overdrive clutch
6. Forward clutch input shaft
7. Forward clutch
8. Direct clutch
9. One-way clutch
10. Second coast brake
11. Second brake
12. Reverse brake
13. Front planetary gear
14. Rear planetary gear
15. Overdrive planetary gear
GENERAL DESCRIPTION
This automatic transmission is a full automatic type with 3-speed plus overdrive (O / D).
The torque converter is a 3-element, 1-step and 2-phase type and is equipped with an electronically controlled
lock-up mechanism. The gear shift device consists of 3 sets of planetary gear units, 3 disc type clutches, 4 disc
type brakes and 3 one-way clutches. The gear shift is done by selecting one of 6 positions (ªPº, ªRº, ªNº, ªDº, ª2º
and ªLº) by means of the select lever installed on the floor. On the shift knob, there is an overdrive (O / D) cut switch
which allows shift-up to the overdrive mode (except at 4L) and shift-down from the overdrive mode. Also, by using
the P / N change switch located on the console box, it is possible to select the gear change timing of 2 modes, nor-
mal and power.
Page 476 of 801
YH4
GRAND
VITARA
7B1-74 AUTOMATIC TRANSMISSION (4 A / T)
1. Boot No.2
2. Boot cover
1. Boot clamp
2. Boot No.1
3. Gear shift control lever
1. Boot No.2
2. Transfer shift control
lever
3. Transfer shift lever case4. Transfer shift control
case cover
5. Boot No.1
1. A / T throttle cable
2. Adjusting nut
3. Lock nut
G16 / J20 H25
DISMOUNTING OF TRANSMISSION (WITH
TRANSFER IF EQUIPPED)
IN CABIN
1) Remove console box.
NOTE:
To remove clip, push in its center pin first.
2) Remove boot cover and boot No.2. (if equipped)
3) Remove boot clamp and then remove boot No.1 from transfer
gear shift lever case. (if equipped)
4) With transfer shift control case cover pushed down with fingers,
turn it to counterclockwise and take out shift control lever. (if
equipped)
IN ENGINE ROOM
1) Remove battery, dipstick and oil filler tube.
2) Disconnect A/T throttle cable from throttle cam and bracket.
3) Remove starter motor. But don't disconnect its wiring harness.
4) Remove transmission to engine bolt and nut.
Page 500 of 801
YH4
GRAND
VITARA
1. Wood block
2. Dash panel
t: 45 mm / 1.8 in.
H: 200 mm / 8 in.
W: 100 ± 150 mm / 4 ± 6 in.
1. Transmission jack
2. Engine rear mounting member
3. Gear shift lever case
4. Bolt
TRANSFER 7D-5
TRANSFER ASSEMBLY
Dismounting and remounting of transfer and transmission together
as a unit is described in Section 7A for Manual Transmission or 7B1
for Automatic Transmission, but it is also possible to dismount and
remount transfer assembly by itself as described below.
DISMOUNTING
IN ENGINE ROOM
1) Disconnect negative (±) cable from battery.
2) Remove distributor assembly (if equipped).
3) Place wood block between engine and dash panel so that it
serves as stopper when engine, transmission and transfer unit
hangs down as rear mounting member is removed.
CAUTION:
Make sure to use wood block to prevent contact which
may occur between dash panel and CMP sensor case
(G16), CMP sensor (J20) or intake manifold (H25), and fan
and shroud.
IN CABIN
1) Remove console box.
2) Remove shift lever of transmission and transfer.
ON LIFT
1) Drain transfer oil.
2) Remove rear propeller shaft.
3) Remove front propeller shaft.
4) Disconnect exhaust center pipe.
5) Disconnect speed sensor coupler.
6) Place transmission jack and remove mounting member.
7) Lower transmission jack gradually and check to ensure that
wood block serves as stopper between engine and dash panel.
8) Remove bolts for gear shift lever case.
9) Pull off breather hose.