Lever SUZUKI SWIFT 2006 2.G Service Service Manual

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Operation of Shift Solenoid Valves, Timing Solenoid Valve and TCC Solenoid Valve
{: ON (Turn power ON)
×: OFF (Turn power OFF)
U : ON only when TCC is operatingSelect
lever
position Gear
position Solenoid
Condition
Shift
solenoid valve-A (No.1) Shift
solenoid valve-B (No. 2) Timing
solenoid valve TCC
solenoid valve
PParking {{ ××
R Reverse {{
××When vehicle is travelling forwards in
less than 9 km/h, 6 mile/h vehicle speed
{{{ ×When vehicle is travelling forwards in 9
km/h, 6 mile/h or more vehicle speed
(Reverse) ×××× When fail-safe function is operating
N Neutral {{ ××
D Neutral
→
1st ——
{—Timing solenoid is turned ON for about
0.5 sec. while on gear shifting
1st {{ ××
2nd {×××
3rd ××× U
3rd ↔ 4th — — {—Timing solenoid is turned ON for about
0.5 sec. while on gear shifting
4th ×{ ×U
(3rd) ×××× When fail-safe function is operating
2 1st
{{ ××
2nd {×××
(3rd) ×××× When fail-safe function is operating
L 1st
{{ ××
(3rd) ×××× When fail-safe function is operating
Valve status
Turn power ON Turn power OFF
Shift solenoid valv e-A (No.1) Close Open
Shift solenoid valv e-
B (No.2) CloseOpen
Timing solenoid OpenClose
TCC (lock-up) pressure control solenoid CloseOpen

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Component Location
Electronic Shift Control System Components LocationS7RS0B5103001
NOTE
The figure shows left-hand steering vehicle. For right-hand steering vehicle, parts with (*) are installed
at the opposite side.

3 4
5*
1 2
6
7 8
9 10 11
12
13 14
16*
18
19
17
15
20
I6RS0C510006-01
1. Engine
8. TCC pressure control solenoid valve (TCC
solenoid valve) 15. ECM
2. Transaxle 9. Transmission fluid temperature sensor 16. TCM
3. MIL 10. Timing solenoid valve17. AT relay
4. Shift position indicator light 11. Pressure control solenoid valve18. “3” position switch
5. Junction block assembly (included in BCM) 12. Shift solenoid valve-B (No.2)19. Select lever

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6. Output shaft speed sensor 13. Shift solenoid valve-A (No.1) 20. Transmission warning light
7. Input shaft speed sensor 14. Transmission range sensor
INPUT OUTPUT
TCMECM
Gear shift control
4th gear inhibit control
Slope shift control
Slip control
Lock up control
Torque control
Line pressure control
Overrun control
Reverse control
Squat control
Input shaft speed sensor
Output shaft speed sensor
"3" position switch ATF temp. sensor
Shift switch
- Range "P" signal
- Range "R" signal
- Range "N" signal
- Range "D" signal
- Range "2" signal
- Range "L" signal
Fail safe function
Self diagnosis
Warning function
ECM
Shift solenoid valve-A
Shift solenoid valve-B
TCC pressure control
solenoid valve
Pressure control
solenoid valve
Signal on CAN
communincation line
COMB. METER
-Engine torque
-Engine speed
-Throttle position
-A/C compressor clutch
-Coolant temperature
-Brake pedal switch -ATF temp.
-Torque request
-Vehicle speed pulse
-Transmission actual gear
position
-A/T select lever position
-Accelerator pedal position
-Transmission warning light
-A/T select lever position
I7RS0B510005-01

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Scan Tool DataS7RS0B5104009
As the data values given in the following table are standard values estimated on the basis of values obtained from the
normally operating vehicles by using a scan tool, use them as reference values. Even when the vehicle is in good
condition, there may be cases where the checked value does not fall within each specified data range. Therefore,
judgment as abnormal should not be made by checking with these data alone.
Also, condition in the following table that can be checked by the scan tool are those detected by TCM and output from
TCM as commands and there may be cases where the auto matic transaxle or actuator is not operating (in the
condition) as indicated by the scan tool.
NOTE
The following scan tool data related to automatic transaxle can be checked only by communicating
with TCM.

) P1777 TCM lost communication with ECM
(Reception error) • Throttle opening used for line pressure control is assumed
to be 100%.
• Throttle opening used for gear shifting control is assumed to be 0%.
• Engine revolution is assumed to be 0 RPM.
• After 15 minutes pass from detecting malfunction, engine coolant temperature is assumed to be 90 °C (194 °F).
• Lock-up function is inhibited to operate.
• Line pressure control at gear shifting is inhibited.
• Torque reducing request to ECM (torque reduction control) is inhibited.
• Upshifting to 4th gear is inhibited.
• Garage shift control is inhibited.
• Learning control is inhibited.
) P1778 TCM lost communication with BCM
(Reception error) “3” position switch is assumed to be OFF.
) P1878 Torque converter clutch shudder Slip contro lled lock-up function is inhibited to operate.
) P2762 Torque converter clutch pressure control
solenoid control circuit range /
performance • Lock-up function is inhibited to operate.
• Slip controlled lock-up function is inhibited to operate.
• Upshifting to 4th gear is inhibited when transmission fluid
temperature is 150 °C (302 ° F) or more.
• Gear position is fixed in 1st gear when vehicle speed is 10 km/h (6 mile/h) or less.
) P2763 Torque converter clutch pressure control
solenoid control circuit high • Lock-up function is inhibited to operate.
• Upshifting to 4th gear is inhibited when A/T fluid
temperature is more than 150 °C (302 °F).
• Vehicle speed is slower than 10 km/h (6 mile/h), gear position is fixed in 1st gear for prevention of engine stall.
) P2764 Torque converter clutch pressure control
solenoid control circuit low • Lock-up function is inhibited to operate.
• Upshifting to 4th gear is inhibited when A/T fluid
temperature is more than 150 °C (302 °F).
DTC No. Trouble area Fail-safe operation
Scan tool data
Vehicle condition Normal condition / reference
values
) GEAR POSITION Ignition switch ON Select lever is in “P” position
P or N
Select lever is in “R” position R
Select lever is in “N” position P or N
Select lever is in “D” position 1
Select lever is in “3” position 1
Select lever is in “2” position 1
Select lever is in “L” position 1

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) ENGINE SPEED At engine idle spee d Engine idle speed is displayed
) INPUT SHAFT
REVOLUTION Ignition switch ON and engine stop 0 RPM
At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 3rd gear (“3” range)
2300 RPM
(displayed in increments of 50 rpm)
) OUTPUT SHAFT
REVOLUTION At vehicle stop 0 RPM
At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 3rd gear (“3” range)
2300 RPM
(displayed in increments of 50 rpm)
) BATTERY
VOLTAGE Ignition switch ON and engine stop Battery voltage is displayed
(8 – 16 V)
) AT F
TEMPERATURE After driving at 60 km/h (37.5 mile/h) for 15 minutes or
more, and A/T fluid temperature around sensor
reaches 70 – 80
°C (158 – 176 °F) 70 – 80
°C (158 – 176 °F)
) SHIFT SOLENOID-
A COMMAND At vehicle stop ON
At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 3rd gear (“3” range)
OFF
) SHIFT SOLENOID-
A MONITOR At vehicle stop ON
At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 3rd gear (“3” range)
OFF
) SHIFT SOLENOID-
B COMMAND At vehicle stop ON
At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 3rd gear (“3” range)
OFF
) SHIFT SOLENOID-
B MONITOR At vehicle stop ON
At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 3rd gear (“3” range)
OFF
) TIMING SOLENOID
COMMAND Ignition switch ON and sele
ct lever is in “N” range OFF
For about 0.5 sec. while on gear shifting between 3rd
and 4th or gear shifting “N” to “D” ON
) TIMING SOLENOID
MONITOR Ignition switch ON and sele
ct lever is in “N” range OFF
For about 0.5 sec. while on gear shifting between 3rd
and 4th or gear shifting “N” to “D” ON
) TCC SOLENOID At vehicle stop, closed throttle, engine idle speed and
1st gear 0%
) PRESSURE
CONTROL SOLENOID At vehicle stop, closed throttle, engine idle speed and
1st gear
0%
) VEHICLE SPEED At vehicle stop 0 km/h, 0 MPH
) O/D OFF SWITCH Ignition switch ON Shift select lever to “3” or “2”
range
ON
Shift select lever to other above
range OFF
) TRANSAXLE
RANGE Ignition switch ONSelect lever is in “P” position P
Select lever is in “R
” position R
Select lever is in “N” position N
Select lever is in “D” position D
Select lever is in “3” position D
Select lever is in “2” position 2
Select lever is in “L” position L
) D RANGE SIGNAL Ignition switch ON Select lever is in “P” position
OFF
Select lever is in “R” position ON
Select lever is in “N” position OFF
Select lever is in “D” position ON
Select lever is in “3” position ON
Select lever is in “2” position ON
Select lever is in “L” position ON
) THROTTLE
POSITION Ignition switch ONAccelerator peda
l is depressed 0 – 100% (Varies depending on
depressed value)
Accelerator peda l is released 0%
) BRAKE SWITCH Ignition switch ON Brake pedal is depressed
ON
Brake pedal is released OFF
Scan tool data
Vehicle condition Normal condition / reference
values

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Scan Tool Data Definitions:
GEAR POSITION
Current gear position computed by throttle position
coming from ECM and vehicle speed.
ENGINE SPEED (RPM)
Engine speed computed by reference pulses from
crankshaft position sensor.
INPUT SHAFT REVOLUTION (RPM)
Input shaft revolution computed by reference pulses
coming from input shaft speed sensor on transaxle case.
OUTPUT SHAFT REVOLUTION (RPM)
Output shaft revolution computed by reference pulses
coming from output shaft speed sensor on transaxle
case.
BATTERY VOLTAGE (V)
Battery voltage read by TCM as analog input signal by
TCM.
ATF TEMPERATURE (°C, °F)
ATF temperature decided by signal from transmission
fluid temperature sensor installed on valve body.
SHIFT SOLENOID-A COMMAND
ON: ON command being outputted to shift solenoid
valve-A (No.1)
OFF: ON command not being outputted to shift solenoid
valve-A (No.1)
SHIFT SOLENOID-A MONITOR
ON: Electricity being passed to shift solenoid valve-A
(No.1)
OFF: Electricity not being passed to shift solenoid valve-
A (No.1)
SHIFT SOLENOID-B COMMAND
ON: ON command being outputted to shift solenoid
valve-B (No.2) OFF: ON command not being outputted to shift solenoid
valve-B (No.2)
SHIFT SOLENOID-B MONITOR
ON: Electricity being passed to shift solenoid valve-B
(No.2)
OFF: Electricity not being passed to shift solenoid valve-
B (No.2)
TIMING SOLENOID COMMAND
ON: ON command being outputted to timing solenoid
valve
OFF: ON command not being outputted to timing
solenoid valve
TIMING SOLENOID MONITOR
ON: Electricity being passed to timing solenoid valve
OFF: Electricity not being passed to timing solenoid
valve
TCC SOLENOID
Electric current value ratio between electric current value
being outputted from TCM to solenoid and maximum
value can be outputted by TCM.
PRESSURE CONTROL SOLENOID
Electric current value ratio between electric current value
being outputted from TCM to solenoid and maximum
value can be outputted by TCM.
VEHICLE SPEED (KPH/MPH)
Vehicle speed computed by reference pulse signals
coming from vehicle speed sensor on transaxle case.
O/D OFF SWITCH (“3” position switch)
Inputted signal from “3” position switch in select lever
assembly.
ON: Shift select lever to “3” or “2” range
OFF: Shift select lever to other above range
)
TORQUE
REDUCTION SIGNAL While on gear upshifting with 25% or more throttle
opening
ON
Under condition of not shifting gear OFF
) ENGINE COOLANT
TEMPERATURE Ignition switch ON Engine coolant temperature is
displayed
) AIR CONDITIONER
SIGNAL Ignition switch ON and air conditioner switch OFF OFF
) ENGINE TORQUE
SIGNAL Ignition switch ON and engine stop 0 N
⋅m
) SLIP RPM Engine running at idle speed
and select lever is in “P”
range 0 RPM
Engine running, vehicle stop and select lever is in “D”
range Engine speed is displayed
) MIL REQUEST Ignition switch ON OFF
) FUEL CUT FLAG Ignition switch ON OFFScan tool data Vehicle condition
Normal condition / reference
values

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Road TestS7RS0B5104011
This test is to check if upshift, downshift and lock-up take place at specified speeds while actually driving vehicle on a
level road.
WARNING!
• Carry out test in very little traffic area to prevent an accident.
• Test requires 2 persons, a driver and a tester.

1) Warm up engine.
2) With engine running at idle, shift select lever “D” range.
3) Accelerate vehicle speed by depressing accelerator pedal gradually.
4) While driving in “D” range, check if gear shift and lock-up occur properly as shown in “Automatic Gear Shift Table”.
Troubleshooting 9 Proceed to “Trouble Diag
nosis 2” in “A/T Symptom
Diagnosis”.
Is trouble identified? Repair or replace faulty
parts.
Proceed to “Trouble
Diagnosis 3” in “A/T
Symptom Diagnosis”.
Step Action Yes No
Condition
Possible cause Correction / Reference Item
Unable to run in all range Faulty valve body component Replace valve body assembly.
Faulty oil pump Inspect. If NG, replace.
Seized or broken planetary gear Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Faulty forward clutch Inspect. If NG, replace.
Faulty reverse clutch Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Damaged drive plate Inspect. If NG, replace.
Faulty torque converter Replace.
No gear shift as 3rd gear Malfunction of shift solenoid valve-A
and/or -B Inspect. If NG, replace.
Malfunction of timing solenoid valve Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
1
→ 2 upshift fails to
occur Malfunction of shif
t solenoid valve-B Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Faulty valve body component Replace valve body assembly.
Faulty 2nd brake Inspect. If NG, replace.
Faulty one-way No.1 clutch Inspect. If NG, replace.
2
→ 3 upshift fails to
occur Malfunction of shif
t solenoid valve-A Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Faulty valve body component Replace valve body assembly.
Faulty direct clutch Inspect. If NG, replace.

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Manual Road TestS7RS0B5104012
WARNING!
Carry out test in very little traffic area to prevent an accident.
Test requires 2 persons, a driver and a tester.

The purpose of this test is to judge whether causal factor of trouble which occurred in automatic transaxle is electrical
or mechanical by disconnecting valve body harness co nnector (1) and fixing automatic transaxle gear position.
1) Start engine and warm it up to normal operating temperature.
2) Turn ignition switch to OFF position and disconnect valve body harness connector (1).
3) Turn OFF all electrical loads. With select lever shifted to each ra nge (“L”, “2”, “3” and “D”), drive vehi cle at 1,000 rpm engine speed and then
check vehicle speed by referring to “Fixed gear position”.
If vehicle speed is not as specified in “Fix ed gear position” table, go to troubleshooting.
4) Connect valve body harness connector and clear DTC.
Fixed gear position TCC (lock-up) function
pressure control does not
operate
Malfunction of TCC pressure control
solenoid valve
Inspect. If NG, replace.
Malfunction of shif t solenoid valve-A
and/or -B Inspect. If NG, replace.
Malfunction of brake light switch Inspect. If NG, replace.
Malfunction of engine coolant
temperature sensor Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Faulty torque converter Replace.
Condition
Possible cause Correction / Reference Item
Select lever positionFixed gear position Vehicle speed
L range
3rd gearApprox. 25.0 km/h (15.5 mile/h)
2 range
3 range
D range
R range Reverse gear Approx. 10.9 km/h (6.8 mile/h)
I3RM0B510010-01

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Troubleshooting
Engine Brake TestS7RS0B5104013
WARNING!
Before test, make sure that there is no vehicle behind so as to prevent rear-end collision.

1) While driving vehicle in 3rd gear of “D” range, shift select lever down to “2” range and check if engine brake
operates.
2) In the same way as in Step 1), check engine brake for operation when select lever is shifted down to “L” range.
3) Engine brake should operate in the test.
Troubleshooting
Stall TestS7RS0B5104014
This test is to check overall performance of automatic tr ansaxle and engine by measuring stall speed at “D” and “R”
ranges. Be sure to perform this test only when transaxle fluid is at normal operating temperature and its level is
between FULL and LOW marks.
CAUTION!
• Do not run engine at stall more than 5 seconds continuously, or fluid temperature may rise excessively high.
• After performing stall test, be su re to leave engine running at idle for longer than 1 minute before
another stall test.

1) Apply parking brake and block wheels.
2) Install tachometer.
3) Start engine with select lever shifted to “P” range.
4) Depress brake pedal fully.
5) Shift select lever to “D” range and depress accelerator pedal fully while watching tachometer. Read engine rpm quickly when it has become constant (stall speed).
6) Release accelerator pedal immediately after stall speed is checked.
7) In the same way, check stall speed in “R” range.
8) Stall speed should be withi n the following specification.
Engine stall speed
Standard: 2100 – 2400 rpm Condition Possible cause Correction / Reference Item
Operated gear is not
correct Faulty valve body component
Replace valve body assembly.
Faulty clutch or brake Inspect clutch and brake. If any parts are faulty,
replace them.
Condition Possible cause Correction / Reference Item
Failure to operate when
shifted down to “2” range Faulty valve body component
Replace valve body assembly.
Faulty O/D and 2nd coast brake Inspect. If NG, replace.
Failure to operate when
shifted down to “L” range Faulty valve body component
Replace valve body assembly.
Faulty 1st and reverse brake Inspect. If NG, replace.

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Troubleshooting
Time Lag TestS7RS0B5104015
This test is to check conditions of clutch, brake and fluid pressure. “Time lag” 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 respectively, depress brake pedal.
2) Start engine.
3) With stop watch ready, shift select lever from “N” to “D” range an d measure time from that moment till shock is felt.
4) Similarly measure time lag by shifting select lever from “N” to “R” range.
Gear shifting time lag
“N” → “D”: Less than 0.7 sec.
“N” → “R”: Less than 1.2 sec.
NOTE
• When repeating this test, be sure to wait at least one minute after select lever is shifted back to “N”
range.
• Engine should be warmed up fully for this test.
• Repeat test 3 times and take average of those data for final time lag data.

Condition Possible cause Correction / Reference Item
Lower than standard level
in both “D” and “R” range Engine output torque failure
Inspect and repair engine.
Faulty one-way clutch of torque
converter Replace torque converter.
Higher than standard
level in “D” range Malfunction of pressure control solenoid
valve (Low line pressure) Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Slippery forward clutch Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Leakage from “D” range fluid pressure
circuit Replace valve body assembly.
Higher than standard
level in “R” range Malfunction of pressure control solenoid
valve (Low line pressure) Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Slippery reverse clutch Inspect. If NG, replace.
Slippery 1st and reverse brake Inspect. If NG, replace.
Leakage from “R” range fluid pressure
circuit Replace valve body assembly.
Higher than standard
level in both “D” and “R”
range Malfunction of pressure control solenoid
valve (Low line pressure)
Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Clogged oil strainer Replace.
Faulty oil pump Inspect. If NG, replace.
Leakage from both “D” and “R” range
fluid pressure circuit Replace valve body assembly.