2000 SUZUKI GRAND VITARA Ignition

YH4
GRAND
VITARA
1
1. Shift solenoids connector
AUTOMATIC TRANSMISSION (4 A / T) 7B1-57
MANUAL ROAD TEST
This test check the gear being used in ªLº, ª2º or ªDº range when
driven with unoperated gear shift control system. Test drive vehicle
on a level road.
NOTE:
Before this test, check diagnostic trouble code (DTC).
1) Disconnect coupler of shift solenoid valves on transmission.
WARNING:
To avoid the danger of being burned, do not touch the hot
exhaust system when disconnecting shift solenoid
valves coupler.
2) With select lever in ªPº, start engine and warm it up.
3) With select lever in ªLº range, start vehicle and accelerate to 20
km/h (12.5 mile/h). Check in this state that 1st gear is being
used.
4) At 20 km/h (12.5 mile/h), shift select lever to 2 range and acceler-
ate to 40 km/h (25 mile/h). Check in this state that 3rd gear is
being used.
5) At 40 km/h (25 mile/h), shift select lever to D range and check
that O/D gear is used when speed is higher than 40 km/h (25
mile/h).
6) After above checks, stop vehicle then engine, and connect shift
solenoids coupler with ignition switch OFF.
WARNING:
To avoid the danger of being burned, do not touch the hot
exhaust system when connecting shift solenoid valves
coupler.
7) Clear DTC with scan tool.
TIME LAG TEST
This test is to check conditions of clutch, reverse brake and fluid
pressure. ªTime lagº means time elapsed since select lever is
shifted with engine idling till shock is felt.
1) With chocks placed before and behind front and rear wheels re-
spectively, depress brake pedal.
2) Start engine.
3) With stop watch ready, shift select lever from ªNº to ªDº range
and measure time from that moment till shock is felt.
4) Similarly measure time lag by shifting select lever from ªNº to ªRº
range.
Specification for ªNº
ªDºLess than 1.2 sec.
time lagªNº
ªRºLess than 1.5 sec.
NOTE:

When repeating this test, be sure to wait at least minute
after select lever is shifted back to ªNº range.

Engine should be warmed up fully for this test.
Test resultPossible causes
When ªNº
ªDº time lag
exceeds specification
Low line pressure

Worn forward clutch
When ªNº
ªRº time lag
exceeds specification
Low line pressure

Worn direct clutch

Worn reverse brake

YH4
GRAND
VITARA
7B1-68 AUTOMATIC TRANSMISSION (4 A / T)
1. Select lever
2. Shift lock solenoid
3. Brake light switch
4. Brake pedal
5. Cable
6. Ignition switch
1. Select lever
2. Interlock cam3. Shift lock solenoid rod
4. Shift lock solenoid
Type-1
BRAKE INTERLOCK SYSTEM
SHIFT LOCK SOLENOID CONTROL
This system consists of shift lock solenoid control system and inter-
lock cable control system.
The shift lock solenoid control system is so designed that the selec-
tor lever can not be shifted from ªPº range position unless the igni-
tion switch is turned ON and the brake pedal is depressed. And the
interlock cable control system is so designed that the selector lever
cannot be shifted from ªPº range position unless the ignition switch
is turned to ªACCº or ªONº position. Also, the ignition key cannot be
pulled out of the key slot unless the selector lever is in ªPº range.
SHIFT LOCK SOLENOID CONTROL OPERATIONS
When the select lever is in ªPº range, the ignition key position is
ªONº and depressing the brake pedal cause the electric current to
flow to the solenoid. As the shift lock solenoid rod (or the lock plate)
is drawn toward the solenoid in this state, it frees the interlock cam
(or the detent pin), which then allows the select lever to be shifted
from ªPº range to any other position.
Even when the select lever is in ªPº range, if the ignition key position
is ªLOCKº or ªACCº or the brake pedal is not depressed, the electric
current does not flow to the solenoid.
In this state, the shift lock solenoid rod (or the lock plate) is pushed
away from the solenoid by spring force and it obstructs the interlock
cam (or the detent pin) movement. Thus the select lever button
does not work even when pressed and the select lever shift is pre-
vented.

YH4
GRAND
VITARA
Type-2
1. Select lever
2. Detent pin
3. Detent plate4. Lock plate
5. Shift lock solenoid
1. Cover
2. Screw3. Select lever
4. Button
AUTOMATIC TRANSMISSION (4 A / T) 7B1-69
SHIFT LOCK (SOLENOID) MANUAL RELEASE
Shift lock can be manually released by following procedure.
1) Remove access hole cover by unfastening screw.
2) Turn ignition key to ªACCº position and move shift lock solenoid
rod (or manual release plate) toward rear side of vehicle by using
screw driver or the like.
3) In this state, select lever can be moved to any range or position.
SYSTEM INSPECTION
1) Check to make sure that select lever cannot be moved to any
other range from ªPº range position when ignition switch key is
at ªACCº position, at ªLOCKº position (or it is removed from key-
hole of ignition switch) or brake pedal is not depressed.
2) Shift select lever to ªPº range position, release knob button and
check for the following.

Ignition key can be turned between ªLOCKº and ªACCº posi-
tions back and forth and also it can be removed from ignition
switch.

YH4
GRAND
VITARA
7B1-70 AUTOMATIC TRANSMISSION (4 A / T)
1. Cover
2. Screw
3. Shift lock solenoid rod
(or manual release plate)4. Select lever
5. Button
Not turn between ªACCº
and ªLOCKº positions.
Type-1
Type-2

With shift lock solenoid rod (or manual release plate) moved
in arrow direction and ignition key turned to ªACCº position, se-
lect lever can be shifted from ªPº range position to any other
range.

With shift lock solenoid rod (or manual release plate) moved
in arrow direction and ignition key turned to ªLOCKº position,
select lever can not be shifted from ªPº range position to any
other range.

When ignition switch is turned ªONº and brake pedal is de-
pressed, select lever can be shifted from ªPº range position to
any other range.
3) With select lever shifted to any position other than ªPº range,
check that ignition key cannot be turned ªLOCKº position and it
cannot be removed from ignition switch unless it is at ªLOCKº
position.

YH4
GRAND
VITARA
AUTOMATIC TRANSMISSION (4 A / T) 7B1-71
Ignition switch side
1. Ignition switch assembly
2. Clamp screw
3. Interlock cable
Select lever side
Type-1
1. Inner end of interlock cable
2. Interlock cam (or key release cam)
3. Stud bolt4. Cam boss
5. Claw
Select lever side
Type-2
KEY INTERLOCK CABLE
NOTE:
Don't bend interlock cable excessively when removing and
installing it, or system will not operate correctly.
Removal
1) Disconnect negative (±) cable from battery.
2) If equipped with air bag system, disable air bag system.
Refer to ªDisabling Air bag Systemº in Section 10B.
3) Remove steering column hole cover.
4) Tilt steering column if steering column is adjustable.
If no adjustable, loosen steering column bolts.
5) Remove steering column cover.
6) Remove interlock cable clamp screw located at ignition switch
assembly.
7) Disconnect interlock cable inner end.
(Ignition switch side.)
8) With console box removed, take out interlock cable by loosening
lock nuts.
9) Detach cable end from interlock cam (or key release cam) while
pressing claws of interlock cam boss. At this time, be careful not
to cause damage to its claws.

YH4
GRAND
VITARA
1. Ignition switch assembly
2. Clamp screw
3. Outer end
1. Interlock cable
2. Steering column
3. Steering column
holder
Type-1
1. Interlock cam
2. Lever plate
3. Interlock cable
4. Pin with 4 mm (0.15 in.) dia.
7B1-72 AUTOMATIC TRANSMISSION (4 A / T)
Installation
1) Shift select lever to ªNº range and turn ignition key to ªACCº
position.
2) Connect inner end of interlock cable to key interlock lever (Igni-
tion switch side).
3) Install outer end bracket of interlock cable to ignition switch as-
sembly, and tighten screw to specified torque.
Tightening Torque
(a): 2.2 N
.m (0.22 kg-m, 1.5 lb-ft)
4) Pass and connect interlock cable as shown at the left figure.
TYPE-1
5) Fix interlock cam by inserting pin with about 4 mm (0.15 in.) dia.
into holes of cam and lever plate.
6) Install cable end to interlock cam and stud bolt and after making
sure that cable outer is pushed in arrow direction B by leaf
spring, tighten mounting nut to specified torque. Remove pin.
Tightening Torque
(a): 13 N
.m (1.3 kg-m, 9.5 lb-ft)
7) Turn ignition key to ªACCº position and shift select lever to ªNº
range, and check for the followings.
a. When select lever is shifted at ªPº range with knob button
depressed, ignition key can not be turned from ªACCº to
ªLOCKº position.
b. When knob button is released, ignition key can be turned to
ªLOCKº position.
c. When ignition key is at ªLOCKº position, select lever can not
be shifted from ªPº to any other range.
8) Install console box.
9) Install steering column cover.
10) Adjust steering column or tighten steering column bolts.
11) Install steering column hole cover.
12) If equipped with air bag system, enable air bag system.
Refer to ªEnabling Air bag Systemº in Section 10B.

YH4
GRAND
VITARA
1. Inner end of interlock cable
2. Key release cam
1. Key release cam
2. Cable outer(a)
Type-2
Type-2
AUTOMATIC TRANSMISSION (4 A / T) 7B1-73
TYPE-2
5) With key release cam set as shown at the left figure, connect
inner end of interlock cable to key release cam. (Select lever
side.)
6) Move key release cam so that it is set at such angle as shown
at the left figure and with special tool inserted in hole A , fix key
release cam.
Special Tool
(A): 09925-78210 (6 mm)
7) With key release cam fixed with special tool, install cable outer
to bracket and after making sure that cable outer is pushed in
arrow direction B by leaf spring, tighten mounting nut to speci-
fied torque. Remove special tool.
Tightening Torque
(a): 13 N
.m (1.3 kg-m, 9.5 lb-ft)
8) Turn ignition key to ªACCº position and shift select lever to ªNº
range, and check for the followings.
a. When select lever is shifted at ªPº range with knob button
depressed, ignition key can not be turned from ªACCº to
ªLOCKº position.
b. When knob button is released, ignition key can be turned to
ªLOCKº position.
c. When ignition key is at ªLOCKº position, select lever can not
be shifted from ªPº to any other range.
9) Install console box.
10) Install steering column cover.
11) Adjust steering column or tighten steering column bolts.
12) Install steering column hole cover.
13) If equipped with air bag system, enable air bag system.
Refer to ªEnabling Air bag Systemº in Section 10B.

YH4
GRAND
VITARA
1. 4WD switch
2. Air pump assembly
3. Pump motor
4. Release valve
5. Pressure switch6. Transfer
7. Front differential
8. Air hose and pipe
9. 4WD indicator lamp
10. To ignition switch
11. ECM or PCM
Operation
(refer to ªComponents and Functionsº)
Power supply
(from ECM or PCM)
DIFFERENTIAL (FRONT) 7E-3
System Circuit and Operation