2008 SUZUKI SWIFT Valve

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-7
Table of Component OperationS7RS0B5101003
{: ON
×: OFF
U : ON only when TCC is operating
Selector
position Gear
position Part
Shift solenoid
valve-A (No.1) Shift solenoid
valve-B (No.2) TCC solenoid
valve Forward
clutch Direct clutch Reverse
clutch
PParking {{ × ×××
R Reverse {{ ××× {
N Neutral {{ × ×××
D 1st
{{ ×{ ××
2nd { ×× {××
3rd ×× U{{ ×
4th × { U ×{ ×
2 1st
{{ ×{ ××
2nd { ×× {××
L1st {{ ×{ ××
Selector
position Gear
position Part
O/D and 2nd coast brake 2nd brake 1st and
reverse brake One-way No.1
clutch One-way No.2
clutch
PParking ×××××
R Reverse ×× {××
N Neutral ×××××
D 1st
×××× {
2nd × { ×{ ×
3rd × { ×××
4th {{ ×××
2 1st
×××× {
2nd {{ ×{ ×
L1st ×× {×{

Downloaded from www.Manualslib.com manuals search engine 5A-8 Automatic Transmission/Transaxle:
Brake Interlock System ConstructionS7RS0B5101004
Shift Lock Solenoid Control
This system consists of shift lock solenoid control
system and interlock cable control system.
The shift lock solenoid cont rol system is so designed
that the select lever can not be shifted from “P” range
position unless ignition switch is turned to “ON” or “ACC”
position and the brake pedal is depressed.
And interlock cable control system is so designed that
select lever cannot be shifted from “P” range position
unless ignition switch is turned to “ACC” or “ON”
position. Also, ignition key cannot be pulled out of key
slot unless select le ver is in “P” range.
Shift Lock Solenoid Manual Release
When push down shift lock solenoid valve release button
(1), select lever can be moved from “P” range position to
another range even without depressing the brake pedal.
(To shift select lever from “P” range to any other position,
turn ignition switch to ACC or ON position.)
A/T Diagnosis General DescriptionS7RS0B5101005
This vehicle is equipped with an electronic transaxle
control system, which controls the automatic shift up and
shift down timing, TCC operation, etc. suitably to vehicle
driving conditions.
TCM has an On-Board Diagnosis System which detects
a malfunction in this system.
When diagnosing a trouble in transaxle including this
system, be sure to have full understanding of the outline
of “On-Board Diagnostic System Description” and each
item in “Precautions in Diagnosing Trouble” and execute
diagnosis according to “A/T System Check” to obtain
correct result smoothly.
On-Board Diagnostic System DescriptionS7RS0B5101006
For automatic transaxle co ntrol system, TCM has the
following functions. Refer to “Inspection of TCM and Its
Circuits”.
• When ignition switch is turned ON with no malfunction in A/T control system is detected, transmission
warning light (1) lights for about 2 seconds after
ignition switch is turned ON and then goes OFF for
bulb check.
• When TCM detects a malfunction in A/T control system, it indicates transmission warning light (1) and
stores malfunction DTC in its memory.
• It is possible to communicate with TCM through data link connector (DLC) (3) by using SUZUKI scan tool
(2). Diagnostic information can be checked and
erased by using SUZUKI scan tool.
• For information about the following items, refer to “On- Board Diagnostic System De scription in Section 1A”
– Warm up cycle
– Driving cycle
– 2 Driving cycle detection logic
– Pending DTC
– Freeze frame data
1
I6RS0C510001-01
3
2
1
I6RS0C510002-01

Downloaded from www.Manualslib.com manuals search engine 5A-10 Automatic Transmission/Transaxle:
Schematic and Routing Diagram
Transmission Control Module (TCM) Wiring DiagramS7RS0B5102001
IG1
115
5
5
8
9
10 7
P
R
N
D
2
L
12
12V 2.5V
5V
12V
5V
12V
12V
12V
12V
WHT
BLK
BLK
BLK
BLK
PPLBLK/RED
BLK/ORN
IG11
RED/BLK
YEL/BLKYEL/BLU
LT GRN/BLK
+BB
WHT/RED
14
20
15
16
17
19
12V18
1
2
3
4
6
13 21
26
24
27
28 29
30
WHT
WHT
RED
RED
WHT
RED
65
16 15 14 13 12 11 43
24 23 2122 10 9 8 721
1920 18 17
C34
17 16
26 25
15 14
65 3
42
13 12
23 2224 11 10 9
21 20 19 87
18
1
C35
[A]
22
25
YELYEL/GRN
WHT
P
N
BRN
LT GRN
ORN
BLK/YEL
BLU/BLK
GRY
LT GRN/BLK WHT/BLU
WHT/BLK
C34-11
C34-12
C34-16
C34-15
C34-14
C34-4
C34-2
C34-1
C34-23 C34-6
C34-24 C34-5
C34-3
RED
GRN
GRN/ORN PNK/BLK
GRN/YEL
LT GRN/BLKC35-6
C35-16
C35-23 C35-25
C35-20
C35-1
C35-8
C35-7
C35-19
C35-18 C34-17 C34-7
4IG11
12V
23
PPL/WHT
LT GRN
I6RS0C510005-01
1. TCM 12. Backup lamp 23. Starter motor relay
2. Input shaft speed sensor 13. Data link connector DLC 24. Ignition switch
3. Output shaft speed sensor 14. Transmission fluid temperature sensor 25. Starter motor
4. ECM 15. Shift solenoid valve-A (No.1) 26. “DOME” fuse
5. CAN driver 16. Shift solenoid valve-B (No.2) 27. “AT ETM” fuse
6. BCM 17. Timing solenoid valve 28. “IG SIG” fuse
7. Meter driver 18. TCC lock-up pressure control solenoid valve 29. “ST SIG” fuse
8. “3” position switch 19. Pressure control solenoid valve 30. “ST MOT” fuse
9. Shift lock solenoid 20. A/T [A]: Terminal arrangement of TCM connector
(viewed from harness side)
10. Brake light switch 21. A/T relay
11. Transmission range sensor 22. Inhibitor switch (including transmission range sensor)

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-11
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

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-13
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

Downloaded from www.Manualslib.com manuals search engine 5A-14 Automatic Transmission/Transaxle:
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

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-19
DTC TableS7RS0B5104005
NOTE
• A: Driving cycles when transmission warning light lighting and storing DTC in TCM memory.
• *1: Transmission warning light does not light up but TCM detects and stores DTC.
• For details of driving cycle, refer to “On-Board Diagnostic System Description”.

DTC No.Detecting item Detecting condition
(DTC will set when detecting) A
) P0602 Control module programming error D ata programming error. *1, 1 driving cycle
) P0705 Transmission range sensor circuit
malfunction (PRNDL input) Multiple signals are inputted
simultaneously. 1 driving cycle
) P0707 Transmission range sensor circuit
low No sensor signal is inputted.
2 driving cycles
) P0712 Transmission fluid temperature
sensor “A” circuit low Sensor output voltage is too low.
1 driving cycle
) P0713 Transmission fluid temperature
sensor “A” circuit high Sensor output voltage is too high.
1 driving cycle
) P0717 Input / Turbine speed sensor circuit
no signal No sensor signal is detected although output
speed sensor signal is inputted.
1 driving cycle
) P0722 Output speed sensor circuit no signal No sensor signal is inputted although input
speed sensor signal is inputted. 1 driving cycle
) P0787 Shift / Timing solenoid low Voltage of timing solenoid terminal is low
although TCM is commanding timing solenoid
to turn ON. 1 driving cycle
) P0788 Shift / Timing solenoid high Voltage of timing solenoid terminal is high
although TCM is commanding timing solenoid
to turn OFF. 1 driving cycle
) P0961 Pressure control solenoid “A” control
circuit range / performance Difference between target current of control
solenoid valve circuit and monitor current of
control solenoid valve circuit is more than
specification.
1 driving cycle
) P0962 Pressure control solenoid “A” control
circuit low No electric flow is detected on pressure control
solenoid circuit.
1 driving cycle
) P0963 Pressure control solenoid “A” control
circuit high Too much electric flow is detected on pressure
control solenoid circuit.
1 driving cycle
) P0973 Shift solenoid “A” control circuit low Voltage of shift solenoid terminal is low
although TCM is commanding shift solenoid to
turn ON. 1 driving cycle
) P0974 Shift solenoid “A” control circuit high Voltage of shift solenoid terminal is high
although TCM is commanding shift solenoid to
turn OFF. 1 driving cycle
) P0976 Shift solenoid “B” control circuit low Voltage of shift solenoid terminal is low
although TCM is commanding shift solenoid to
turn ON. 1 driving cycle
) P0977 Shift solenoid “B” control circuit high Voltage of shift solenoid terminal is high
although TCM is commanding shift solenoid to
turn OFF. 1 driving cycle
) P1702 Internal control module memory
check sum error Calculation of current data stored in TCM is not
correct comparing with pre-stored checking
data in TCM.
1 driving cycle
) P1703 CAN invalid data - TCM TCM receives malfunction signal of throttle
position

, engine coolan t temperature, engine
revolution and engine torque from ECM. *1, 1 driving cycle
) P1723 Range select switch malfunction “3” position switch ON signal is inputted
although transmission range switch signal is
inputted P, R, N or L. range. *1, 1 driving cycle
) P1774 Control module communication bus
off Transmitting and receiving error detected to
TCM for specified time continuously.
1 driving cycle

Downloaded from www.Manualslib.com manuals search engine 5A-20 Automatic Transmission/Transaxle:
DTC CheckS7RS0B5104006
1) Turn ignition switch OFF.
2) Connect SUZUKI scan tool to DLC (1).
Special tool
(A): SUZUKI scan tool
3) Read DTC according to instructions displayed on SUZUKI scan tool and wr ite it down. Refer to
SUZUKI scan tool operator’s manual for further
details.
4) After completing the check, turn ignition switch OFF
and disconnect SUZUKI scan tool from DLC.
DTC ClearanceS7RS0B5104007
NOTE
DTC and freeze frame data stored in TCM
memory are also cleared in following cases.
Be careful not to clear them before keeping
their record.
• When power to TCM is cut off (by disconnecting battery cable, removing
fuse or disconnecting TCM connector).
• When the same malfunction (DTC) is not detected again during 40 engine warm-up
cycles.

1) Turn ignition switch OFF.
2) Connect SUZUKI scan tool to data link connector (DLC) (1).
Special tool
(A): SUZUKI scan tool
3) Clear DTC according to instructions displayed on SUZUKI scan tool. Refer to SUZUKI scan tool
operator’s manual for further details.
4) After completing the clearance, turn ignition switch OFF and disconnected SUZUKI scan tool from data
link connector (DLC).
)
P1777 TCM lost communication with ECM
(Reception error) Receiving error from ECM detected to TCM for
specified time continuously.
1 driving cycle
) P1778 TCM lost communication with BCM
(Reception error) Receiving error from BCM detected to TCM for
specified time continuously.
*1, 1 driving cycle
) P1878 Torque converter clutch shudder Variation in the output revolution speed of the
specified amplitude and specified cycle is
detected under slip lock-up condition. *1, 20 driving cycle
) P2762 Torque converter clutch pressure
control solenoid control circuit range /
performance Difference between target current of TCC
solenoid valve circuit and monitor current of
TCC solenoid valve ci
rcuit is more than
specification. 1 driving cycle
) P2763 Torque converter clutch pressure
control solenoid control circuit high Too much electric flow is detected on TCC
solenoid circuit.
1 driving cycle
) P2764 Torque converter clutch pressure
control solenoid control circuit range /
performance Difference between target current of TCC
solenoid valve circuit and current of TCC
solenoid valve circuit is more than
specification.
1 driving cycle
DTC No. Detecting item
Detecting condition
(DTC will set when detecting) A
1
(A)I4RS0B510004-01
1
(A)I4RS0B510004-01