2005 SUZUKI GRAND VITARA Air con

YH4
GRAND
VITARA
Oscilloscope waveforms
2V/Div.
Waveforms at specified idle
speed in ªPº range5ms / Div.
AUTOMATIC TRANSMISSION (4 A / T) 7B1-43
TROUBLESHOOTING (DTC P0715)
STEPACTIONYESNO
1Was ªA / T DIAG. FLOW TABLEº performed?Go to Step 2.Go to ªA / T DIAG.
FLOW TABLEº.
2Input speed sensor circuit check:
1) Remove PCM cover.
2) With ignition switch OFF, disconnect PCM
connectors.
3) Check for proper connection to input speed sensor
at C51-1-10 and C51-1-11 terminals for G16/J20
(at C51-1-8 and C51-1-16 terminals for H25)
4) If OK, check resistance of sensor circuit.
Resistance between C51-1-10
and C51-1-11 for G16 / J20
(C51-1-8 and C51-1-16 for H25):530 ± 650
at
20C, 68F
Resistance between C51-1-10 /
C51-1-11 for G16 / J20 (C51-1-8 /
C51-1-16 for H25) and ground: 1 M
or more
Are check results satisfactory?Go to Step 4.Go to Step 3.
3Input speed sensor check:
1) With ignition switch OFF, disconnect input speed
sensor connector.
2) Check for proper connection to input speed sensor
at each terminals.
3) If OK, then check resistance of input speed sensor.
Are measured values as specified in Step 2?ªBl / Gº or ªBl / Yº wire
open or shorted to
ground.Replace input speed
sensor.
4Check visually input speed sensor and overdrive clutch
drum for the followings.

No damage

No foreign material attached

Correct installation
Are they in good condition?Intermittent trouble
or faulty PCM.
Check for intermittent
referring to
ªIntermittent and
Poor Connectionº in
Section 0A.Clean, repair or
replace.
Reference
Connect oscilloscope between C51-1-11 (+) and C51-1-10 (±) for
G16 / J20 (C51-1-16 (+) and C51-1-8 (±) for H25) of PCM connector
connected to PCM and check input speed sensor signal.

YH4
GRAND
VITARA
Oscilloscope waveforms
2 V/Div.
5 ms / Div.
Waveforms at about 25 mph, 40 km / h
AUTOMATIC TRANSMISSION (4 A / T) 7B1-45
TROUBLESHOOTING (DTC P0720)
STEPACTIONYESNO
1Was ªA / T DIAG. FLOW TABLEº performed?Go to Step 2.Go to ªA / T DIAG.
FLOW TABLEº.
2Output speed sensor circuit check:
1) Remove PCM cover.
2) With ignition switch OFF, disconnect PCM
connectors.
3) Check for proper connection to output speed sensor
at C51-1-22 and C51-1-23 terminals for G16 / J20
(at C51-1-9 and C51-1-10 terminals for H25).
4) If OK, check resistance of sensor circuit.
Resistance between C51-1-22
and C51-1-23 for G16 / J20
(C51-1-9 and C51-1-10 for H25): 387 ± 473
at
20 C, 68 F
Resistance between C51-1-22 /
C51-1-23 for G16/J20 (C51-1-9 /
C51-1-10 for H25) and ground: 1 M
or more
Are check results satisfactory?Go to Step 4.Go to Step 3.
3Output speed sensor check:
1) With ignition switch OFF, disconnect output speed
sensor connector.
2) Check for proper connection to output speed sensor
at each terminals.
3) If OK, then check resistance of output speed sensor.
Are measured values as specified in Step 2?ªOrº or ªWº wire
open or shorted to
ground.Replace output
speed sensor.
4Check visually output speed sensor and sensor rotor
for the followings.

No damage

No foreign material attached

Correct installation
Are they in good condition?Intermittent trouble
or faulty PCM.
Check for intermittent
referring to
ªIntermittent and
Poor Connectionº in
Section 0A.Clean, repair or
replace.
Reference
Connect oscilloscope between C51-1-23 (+) and C51-1-22 (±) for
G16/J20 (C51-1-10 (+) and C51-1-9 (±) for H25) of PCM connector
connected to PCM and check output speed sensor signal.

YH4
GRAND
VITARA
7B1-46 AUTOMATIC TRANSMISSION (4 A / T)
DTC P0741 TCC (LOCK-UP) SOLENOID VALVE PERFORMANCE OR STUCK OFF
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITIONTROUBLE AREA
While running in 2nd or 4th gear, D range, TCC control
of PCM does not agree with actual operation of trans-
mission TCC even though solenoid valve is electrically
in good condition.
(2 driving cycles detection logic)
TCC (lock-up) solenoid valve stuck

TCC control valve stuck

Valve body fluid passage clogged

TCC faulty
DTC CONFIRMATION PROCEDURE
WARNING:

When performing a road test, select a place where there is no traffic or possibility of a traffic accident
and be very careful during testing to avoid occurrence of an accident.

Road test should be carried out with 2 persons, a driver and a tester, on a level road.
1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTC, pending DTC and freeze frame data in PCM memory by using scan tool and check fuel level meter
indication is 1/4 or more.
3) Start engine, warm it up to normal operating temperature and shift transfer lever to ª2Hº or ª4Hº range.
4) Increase vehicle speed with D range, and check that gear position changes from 1st to 2nd and keep driving
about 20 mph, 30 km/h in 2nd of ªDº range for 10 seconds. (Throttle valve should be not at idle position and
the opening should be kept constant in this step.)
5) Keep driving about 50 mph, 80 km/h in 4th of ªDº range for 10 seconds.
6) Release accelerator pedal, decrease vehicle speed and stop vehicle.
7) Check pending DTC and DTC by using scan tool.
TROUBLESHOOTING
STEPACTIONYESNO
1Was ªA / T DIAG. FLOW TABLEº performed?Go to Step 2.Go to ªA / T DIAG.
FLOW TABLEº.
2TCC solenoid valve operation check:
1) Check TCC solenoid valve operation referring to
ªSolenoid Valves Operation Checkº in this section.
Is it in good condition?Go to Step 3.Faulty TCC solenoid
valve.
3Valve body check:
1) Check valve body referring to ªUnit Repairº in this
section.
Is it in good condition?Faulty torque
converter.Faulty valve body.

YH4
GRAND
VITARA
AUTOMATIC TRANSMISSION (4 A / T) 7B1-49
DTC P0751 SHIFT SOLENOID VALVE-A (#1) PERFORMANCE OR STUCK OFF
DTC P0756 SHIFT SOLENOID VALVE-B (#2) PERFORMANCE OR STUCK OFF
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITIONTROUBLE AREA
While running in D range, gear change control from
PCM to A / T does not agree with actual A / T gear posi-
tion even though solenoid valve is electrically in good
condition.
(A / T gear position is calculated based on engine
speed signal and vehicle speed sensor signal.)
(2 driving cycles detection logic)DTC P0751:

Shift solenoid valve-A stuck or leakage.

2-3 shift valve stuck.

Valve body fluid passage clogged.

Mechanical malfunction in transmission.
(Direct clutch malfunction)
DTC P0756:

Shift solenoid valve-B stuck or leakage.

1-2 shift valve stuck.

3-4 shift valve stuck.

Valve body fluid passage clogged.

Mechanical malfunction in transmission.
(2nd brake malfunction)
DTC CONFIRMATION PROCEDURE
WARNING:

When performing a road test, select a place where there is no traffic or possibility of a traffic accident
and be very careful during testing to avoid occurrence of an accident.

Road test should be carried out with 2 persons, a driver and a tester, on a level road.
1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTC, pending DTC and freeze frame data in PCM memory by using scan tool and check fuel level meter
indication is 1 / 4 or more.
3) Start engine, warm it up to normal operating temperature and shift transfer lever to ª2Hº or ª4Hº range.
4) Increase vehicle speed with D range, and check that gear position changes from 1st to 2nd, 3rd and 4th in that
order as vehicle speed increases, referring to ªGear Shift Diagramº in this section.
5) Stop vehicle and check pending DTC and DTC by using scan tool.
TROUBLESHOOTING
STEPACTIONYESNO
1Was ªA / T DIAG. FLOW TABLEº performed?Go to Step 2.Go to ªA / T DIAG.
FLOW TABLEº.
2Shift solenoid valve-A or -B operation check:
1) Check shift solenoid valve-A or -B for operation
referring to ªSolenoid Valves Operation Checkº
section.
Is it in good condition?Go to Step 3.Faulty shift solenoid
valve-A or -B.
3Valve body check:
1) Check valve body and its passage referring to
ªUnit Repairº section.
Are they in good condition?Overhaul and repair
automatic transmis-
sion.Faulty valve body.

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
7B1-78 AUTOMATIC TRANSMISSION (4 A / T)
ON-VEHICLE
SERVICE MOUNTING
EXTERNAL
UNIT REPAIR
Refer to the same section of UNIT REPAIR MANUAL mentioned in FOREWORD of this manual.
TIGHTENING TORQUE SPECIFICATIONS
Fastening portion
Tightening torque
Fastening portion
N´mkg-mlb-ft
Automatic transmission fluid drain plug232.317.0
Transfer oil filler / level and drain plugs232.317.0
Transmission case plug171.712.5
Manual select lever nut131.39.5
Manual select cable nut70.75.5
Manual selector assembly bolts181.813.5
Transmission to engine bolts and nuts858.561.5
Engine rear mounting bolts
Engine rear mounting member bolts
Transmission case right stiffener bolts
505.036.5
Universal joint flange bolts and nuts505.036.5
Torque converter mounting bolts656.547.0
Adapter case or extension case bolts
(G16 engine)353.525.5
Adapter case or extension case bolts
(J20 / H25 engines)424.230.0
Transmission range switch lock bolt5.50.554.0
Oil pipe union bolts353.522.5
Drive plate bolts787.856.5
Interlock cable clamp screw2.20.221.5
Interlock cable outer mounting nut131.39.5