2000 SUZUKI SWIFT oil

7B-4 AUTOMATIC TRANSMISSION (4 A/T)
Item Specifications
Torque
converterType
Stall torque ratio3-element, 1-step, 2-phase type
1.65 –1.85
Oil pumpType
Drive systemInternal gear type oil pump
Engine driven
Gear
change
deviceType Forward 4-step, reverse 1-step planetary gear type
Shift position“P” range Gear in neutral, output shaft fixed, engine start
“R” range Reverse
“N” range Gear in neutral, engine start
“D” range
(O/D ON)Forward 1st ↔
2nd ↔
3rd ↔
4th (O/D)
automatic gear change
“D” range
(O/D OFF)Forward 1st ↔
2nd ↔
3rd ←
4th
automatic gear change
“2” range Forward 1st ↔
2nd ←
3rd automatic gear change
“L” range Forward 1st ←
2nd reduction, and fixed at 1st gear
Gear
ratio1st 2.962
2nd 1.515 Number of teeth Front sun gear : 34
Rear sun gear : 21
Front pinion gear : 16
Rear pinion gear : 19
Front internal gear : 66
Rear internal gear : 59 3rd 1.000
4th
(overdrive gear)0.737
Reverse
(reverse gear2.809
Control elementsWet type multi-disc clutch ... 3 sets
One-way clutch ... 1 set
Wet type multi-disc brake ... 3 sets
Reduction gear ratio 1.209
Final gear ratio
(Differential)3.578 (for 2WD vehicle), 3.894 (for 4WD vehicle)
Lubrication Lubrication system Force feed system by oil pump
Cooling Cooling system Water-cooled
Fluid used
Equivalent of DEXRON
-III or DEXRON-IIE

7B-10 AUTOMATIC TRANSMISSION (4 A/T)
CHANGE MECHANISM
The same select pattern shift lever is used as the floor type and
frequently used “N” and “D” ranges are made selectable freely. Throttle position
signal circuit
(DTC P1700)No or abnormal throt-
tle opening signal is
inputtedScheduling of automatic gear shift is performed as throttle
valve opening is 0%.
Control of automatic gear shift (i.e. control of oil pressure) is
performed as throttle valve opening is 100%.
Coast down shifting is performed when brake is applied and
engine rev. is less than 1,500 rpm.
Lock-up function is turned OFF.
Transmission con-
trol system electri-
cal
(DTC P0702)Solenoid power sup-
ply relay output volt-
age is too high
although TCM orders
relay to turn off or
relay output voltage is
too low although TCM
orders relay to turn
on.When relay shorted, the gear is fixed as the followings and
lock-up function is turned OFF.
“P” range →
P, “R” range →
R, “N” range →
N,
“D” range →
3rd, “2” range →
2nd, “L” range →
1st
When relay open, power supply to all solenoids is cut and the
gear is fixed as the followings. Lock-up function is turned
OFF.
“P” range →
P, “R” range →
R, “N” range →
N,
“D”/“2”/“L” range →
3rd
Internal malfunc-
tion of TCM
(DTC P1702)Incorrect calculations
of checking TCM pro-
grammed data indi-
cated.Power supply to all solenoid is cut and the gear is fixed as fol-
lows :
“P” range P, “R” range R, “N” range N,
“D”/“2”/“L” range “3rd Area Detecting condition Fail safe function

7B-16 AUTOMATIC TRANSMISSION (4 A/T)
2. DIAGNOSTIC TROUBLE CODE (DTC) CHECK, RECORD AND CLEARANCE
To check DTC, refer to “DTC CHECK” in this section. When a DTC exists, it means existence of a malfunction in
the system represented by that code but whether it still exists (current) or it occurred in the past and has gone
(history) is unknown. To know it, clear this DTC once (Refer to “DTC CLEARANCE” in this section.), perform
test drive and/or “TROUBLE SYMPTOM CONFIRMATION” in this section and then check DTC again as
described in “DTC CHECK”. Attempt to diagnose the trouble based on the DTC recorded in this step only or fail-
ure to clear the DTC in this step may mislead the diagnosis or make diagnosing difficult. Even after checking the
DTC with the SUZUKI scan tool, diagnosis should be performed according to this flow chart to check TCM for
proper self-diagnosis function.
3 and 4. VISUAL INSPECTION
As a preliminary step, perform visual check of the following items that support proper function of the automatic
transmission.
5.TROUBLE SYMPTOM CONFIRMATION
Check if what the customer claimed in “CUSTOMER COMPLAINT ANALYSIS” is actually found in the vehicle
and if that symptom is found, whether it is identified as a failure. (This step should be shared with the customer
if possible.)
When the symptom is not actually found, possibility is :
The symptom occurs under certain conditions.
----- Retry with the vehicle under different conditions.
The trouble occurred only temporarily and normal operation has been restored.
----- Perform “DTC CHECK” and if the diagnostic trouble code is indicated, inspect according to the flow
table for that DTC.
6 and 7. RECHECKING AND RECORD OF DTC
Refer to “DTC CHECK” in this section.INSPECTION ITEM REFERRING SECTION
Engine oil ----- level, leakage Section 0B
Engine coolant ----- level, leakage Section 0B
A/T fluid ----- level, leakage, color Section 0B
Battery ----- fluid level, corrosion of terminal
A/T fluid hoses ----- disconnection, looseness, deterioration
Connectors of electric wire harness ----- disconnection, friction Section 8
Fuses ----- burning Section 8
Parts ----- installation, bolt ----- looseness
Parts ----- deformation
Other parts that can be checked visually
Also add following items at engine start.
Indicator, warning lights in combination meter ----- ON
(indicating abnormality in system) or OFFSection 8C
Other parts that can be checked visually

7B-22 AUTOMATIC TRANSMISSION (4 A/T)
LINE PRESSURE TEST
Purpose of this test is to check operating conditions of each part
by measuring fluid pressure in fluid pressure line.
Line pressure test requires following conditions.
Automatic fluid is at normal operating temperature (70 –
80°C /158 – 176°F).
Fluid is filled to proper level (between FULL and LOW on
dipstick).
1) Apply parking brake securely and place chocks against
wheels.
2) Remove fluid pressure check hole plug bolt.
3) Attach oil pressure gauge to fluid pressure check hole in
transmission case.
Special tool
(A) : 09925-37811-001
4) Depress foot brake fully, run engine at idle and stall then check fluid pressure in “D” or “R” range.
Line pressureCAUTION:
After attaching oil pressure gauge, check that no fluid
leakage exists.
(A)
CAUTION:
Do not continue running engine at stall speed longer than 5 seconds.
“D” range “R” range
At idle speed
7.6 – 9.2 kg/cm
2
108.1 – 130.8 psi14.1 – 17.3 kg/cm
2
200.6 – 246.0 psi
At stall speed
7.9 – 9.5 kg/cm
2
112.4 – 135.0 psi14.4 – 17.6 kg/cm
2
204.8 – 250.2 psi
Test result Possible cause
Line pressure higher than stan-
dard level in each rangeMalfunctioning regulator valve
Line pressure lower than standard
level in each rangMalfunctioning regulator valve
Defective oil pump
Line pressure lower than standard
level only in “D” rangeFluid leakage from “D” range pressure circuit
Fluid leakage from 1st & 2nd brake
Fluid leakage from rear clutch
Line pressure lower than standard
level only in “R” rangeFluid leakage from “R” range pressure circuit
Fluid leakage from rear clutch
Fluid leakage from direct clutch
Fluid leakage from reverse brake

7B-56 AUTOMATIC TRANSMISSION (4 A/T)
FLUID LEVEL AT ROOM TEMPERATURE
INSPECTION
The fluid level check at room temperature performed after repair
or fluid change before test driving is just preparation for level
check of normal operation temperature. The checking procedure
itself is the same as that described previously. If the fluid level is
between FULL COLD and LOW COLD, proceed to test drive. And
when the fluid temperature has reached the normal operating
temperature, check fluid again and adjust it as necessary.
FLUID CHANGE
1) Lift up vehicle.
2) When engine has cooled down, remove drain plug (1) from
oil pan and drain A/T fluid.
3) Install drain plug.
Tightening torque
A/T fluid drain plug (a) : 23 N·m (2.3 kg-m, 16.5 lb-ft)
1. Dipstick
2.“FULL HOT” mark
3.“LOW HOT” mark
4.“FULL COLD” mark
5.“LOW COLD” mark

AUTOMATIC TRANSMISSION (4 A/T) 7B-65
O/D OFF SWITCH
INSPECTION
1) Remove console box.
2) Disconnect O/D off switch coupler (1).
3) Check continuity between O/D off switch terminals.
O/D OFF switch specification
SHIFT SOLENOID VALVES AND TRANSMIS-
SION TEMPERATURE SENSOR
REMOVAL
1) Disconnect negative cable at battery.
2) Drain A/T fluid.
3) Remove A/T oil pan (1).
4) Disconnect transmission temp. sensor coupler (3).
5) Remove A/T oil strainer (2) and transmission temp. sensor
(1). O/D off switch ON OFF
Continuity Continuity No continuity
2. O/D off switch ON
3. O/D off switch OFF

AUTOMATIC TRANSMISSION (4 A/T) 7B-67
INSTALLATION
1) Install shift solenoid valves.
Tightening torque
Solenoid valve bolts (a) : 8 N·m (0.8 kg-m, 6.0 lb-ft)
2) Connect shift solenoid couplers.
3) Install oil strainer (2) and transmission temperature sensor
(1).
Tightening torque
Transmission temperature sensor bolt
(b) : 10 N·m (1.0 kg-m, 7.5 lb-ft)
4) Connect transmission temperature sensor coupler (3).
5) Clean mating surface of A/T oil pan (1) and A/T case.
6) Install new gasket (2) to A/T oil pan.
7) Install A/T oil pan.
Tightening torque
A/T oil pan bolts (a) : 7.5 N·m (0.75 kg-m, 5.5 lb-ft)
8) Install A/T fluid drain bolt.
Tightening torque
A/T fluid drain bolt (b) : 23 N·m (2.3 kg-m, 16.5 lb-ft)
9) Refill A/T fluid referring to “FLUID CHANGE” in this section.
10) Verify that there is no A/T fluid leakage.
NOTE:
Do not forget to install O-ring (4) to oil strainer first.

7B-68 AUTOMATIC TRANSMISSION (4 A/T)
DIFFERENTIAL SIDE OIL SEAL
REPLACEMENT
1) Lift up vehicle and drain transmission oil.
2) Remove drive shaft joints from differential gear of transmis-
sion.
Refer to Section 4 for procedure to disconnect drive shaft
joints.
For differential side oil seal removal, it is not necessary to
remove drive shafts from steering knuckle.
For 4WD vehicle, remove transfer referring to Section 7D.
3) Remove differential side oil seal (1) by using flat end rod or
like.
4) Install new differential side oil seal by using special tool.
Special tool
(A) : 09940-53111
(B) : 09913-75510
5) Install drive shaft referring to Section 4.
6) Refill A/T fluid referring to “FLUID CHANGE” in this section. NOTE:
For oil seal installation, press-fit oil seal so that transmis-
sion case end face is flush with oil seal end face.
2. Steering gear box
3. A/T oil pan
4. Torque converter hous-
ing
5. Transmission case