2008 SUZUKI SWIFT Power lock

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 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

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-21
Fail-Safe TableS7RS0B5104008
This function is provided by the safe mechanism that assures safe driveability even when the solenoid valve, sensor or
its circuit fails. The following table shows th e fail-safe function for each fail condition of sensor, solenoid or its circuit.
DTC No. Trouble area Fail-safe operation
) P0705 Transmission range sensor circuit
malfunction (PRNDL input) • Selected range is set in priority order shown below.
D> 2> L> R> N> P
• Slip controlled lock-up function is inhibited to operate.
• Learning control is inhibited.
) P0707 Transmission range sensor circuit low • Selected range is assumed to be “D” range.
• Slip controlled lock-up function is inhibited to operate.
• Learning control is inhibited.
) P0712 Transmission fluid temperature sensor “A”
circuit low • A/T fluid temperature is assumed to be 200
°C (392 °F).
• Upshifting to 4th gear is inhibited.
• Lock-up function is inhibited to operate.
• Garage shift control is inhibited.
• Learning control is inhibited.
)
P0713 Transmission fluid temperature sensor “A”
circuit high
) P0717 Input / Turbine speed sensor “A” circuit no
signal • Upshifting to 4th gear is inhibited.
• 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.
• Garage shift control is inhibited.
• Learning control is inhibited.
) P0722 Output speed sensor circuit no signal • Vehicle speed which is calculated by input shaft speed
sensor signal is used for gear shifting control instead of
vehicle speed calculated by output shaft speed sensor
signal.
• Upshifting to 4th gear is inhibited.
• 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.
• Garage shift control is inhibited.
• Learning control is inhibited.
) P0787 Shift / Timing solenoid Low
• Power supply for all solenoid valves is cut.
• Gear position is fixed in 3rd gear.
• Line pressure control at gear shifting is inhibited.
• Look-up function is inhibited to operate.
• Garage shift control is inhibited.
• Torque reducing request to ECM (torque reduction control)
is inhibited.
)
P0788 Shift / Timing solenoid High
) P0962 Pressure control solenoid “A” control
circuit low
) P0963 Pressure control solenoid “A” control
circuit high
) P0973 Shift solenoid “A” control circuit low
) P0974 Shift solenoid “A” control circuit high
) P0976 Shift solenoid “B” control circuit low
) P0977 Shift solenoid “B” control circuit high
) P0961 Pressure control solenoid “A” control
circuit range / performance • Gear position is fixed in 3rd gear.
• Lock-up function is inhibited to operate.
• Slip controlled 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.
• Garage shift control is inhibited.
• Leaning control is inhibited.

Downloaded from www.Manualslib.com manuals search engine 5A-22 Automatic Transmission/Transaxle:
) P1702 Internal control module memory check
sum error • Power supply for all solenoid valves is cut.
• Gear position is fixed in 3rd gear.
• Line pressure control at gear shifting is inhibited.
• Lock-up function is inhibited to operate.
) P1703 CAN invalid data - TCM In case of throttle position signal malfunction:
• Throttle opening used for line pressure control is assumed
to be 100%.
• Throttle opening used for gear shifting control is assumed to be 0%.
• Upshifting to 4th gear is inhibited.
• Lock-up function is inhibited to operate. Line pressure control at gear shifting is inhibited.
• Garage shift control is inhibited.
• Learning control is inhibited.
In case of engine coolant temperature signal malfunction:
• Slip controlled lock-up function is inhibited to operate.
• After 15 minutes pass from detecting malfunction, engine coolant temperature is assumed to be normal operating
temperature, and controls of overdrive and lock-up is
released from inhibition.
In case of engine revolution signal malfunction:
• Upshifting to 4th gear is inhibited.
• 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.
• Garage shift control is inhibited.
• Learning control is inhibited.
In case of engine torque signal malfunction:
• Line pressure control at gear shifting is inhibited.
• Torque reducing request to ECM (torque reduction control) is inhibited.
• Upshifting to 4th gear is inhibited.
• Learning control is inhibited.
) P1723 Range select switch malfunction “3” position switch is assumed to be OFF.
) P1774 Control module communication bus off • 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.
DTC No. Trouble area Fail-safe operation

Downloaded from www.Manualslib.com manuals search engine 5A-42 Automatic Transmission/Transaxle:
No Lock-Up OccursS7RS0B5104020
System Description
TCM turns TCC solenoid OFF under any of the following conditions.
• Brake light switch is turned ON (Brake pedal is depressed).
• Transmission fluid temperat ure is less than 60 °C (140 °F).
• Throttle opening is as much as 0%.
• TCM detects the following DTCs. P0705 / P0707 / P0712 / P0713 / P0717 / P0722 / P0787 / P0788 / P0961 / P0962 / P0963 / P0973 / P0974 / P0976
/ P0977 / P1702 / P1703 / P1774 / P1777 / P2762 / P2763 / P2764
Troubleshooting
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.

3 1) Perform running test under the following conditions and measure voltage between terminal “C34-16” of TCM
connector and ground, terminal “C34-15” of TCM
connector and ground.
• Engine coolant temperature is in normal operating temperature.
• Select lever is in “D” range.
• Drive vehicle with 4th gear condition referring to “Automatic Gear Shift Table”.
Voltage between TCM connector and ground
Between terminal “C34-16” of TCM connector and
ground: 0 – 1 V
Between terminal “C34-15” of TCM connector and
ground: 8 – 14 V
Do results satisfy the value? Faulty shift solenoid
valve, circuit or
transaxle.
“BRN” circuit shorted to
power circuit or open, or
“BLK/YEL” circuit
shorted to ground. If
wire is OK, go to Step 4.
4 “3” position switch signal inspection
1) With ignition switch turned ON, check voltage between
“L01-8” terminal of BCM coupler and ground.
“3” position switch signal specification
Shift select lever to “3” or “2” range: 8 – 14 V
Shift select lever to other above range: 0 – 1 V
Is result as specified? Substitute a known-
good TCM and recheck.
Faulty “3” position
switch or its circuit.
Step Action Yes No

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-79
2Check TCC solenoid valve circuit for IG short
1) Connect valve body harness connector.
2) Disconnect TCM connectors.
3) Check for proper connection to TCM at terminal “C34-3”
and “C34-5”.
4) If connection is OK, turn ignition switch ON and measure voltage between terminal “C34-3” of disconnected
harness side TCM connector and ground between
terminal “C34-5” of disconnected harness side TCM
connector and ground.
Are voltage 1 V or less? Go to Step 3. “WHT/BLU” or “WHT/
BLK” circuit shorted to
power circuit.
3 Check TCC lock-up pressure control solenoid valve
resistance
1) Turn ignition switch OFF.
2) Disconnect valve body harness connector (1), (2) on
automatic transaxle.
3) Check for proper connection to solenoid at “WHT/BLU” and “WHT/BLK” circuits.
4) Check resistance of TCC lock-up pressure control
solenoid valve.
TCC lock-up pressure control solenoid valve
resistance
Between terminals of transaxle side valve body
harness connector: 5.0 – 5.6 Ω at 20 °C (68 °F)
Between terminals of transaxle side valve body
harness connector and transaxle: Infinity
Is check results satisfactory? Intermittent trouble or
faulty TCM.
Check for intermittent
trouble referring to
“Intermittent and Poor
Connection Inspection
in Section 00”.
If OK, substitute a
known-good TCM and
recheck.
Replace TCC lock-up
pressure control
solenoid valve or lead
wire.
Step Action Yes No
1
6
7
89
10 5
43 2
1
2
I4RS0A510020-01

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-87
Troubleshooting
Brake Interlock System InspectionS7RS0B5104047
1) Check that select lever cannot be moved to any other range from “P” range position when ignition
switch key is at ACC position, at LOCK position or it
is removed from keyhole of ignition switch, or brake
pedal is not depressed. 2) Shift select lever to “P” range position, release knob
button and check for the following.
• Ignition key can be turned between LOCK and ACC positions back and forth and also it can be
removed from ignition switch.
Step Action Yes No
1 Check TCM back-up power circuit
1) Disconnect TCM connector with ignition switch OFF.
2) Check for proper connection to TCM at “C34-24”
terminal.
3) If OK, check voltage at terminal “C34-24” of disconnected TCM connector.
Is it 10 – 14 V? Go to Step 2. “WHT/RED” circuit open
or shorted to ground.
2 Check TCM power circuit
1) Disconnect TCM connector with ignition switch OFF.
2) Check for proper connection to TCM at “C34-6” terminal.
3) If OK, turn ignition switch ON and check voltage at
terminal “C34-6” of disconnected TCM connector.
Is it 10 – 14 V? Go to Step 4. Go to Step 3.
3 Check A/T relay operation
1) Check A/T relay operation referring to “A/T Relay
Inspection”.
Is check result satisfactory? “YEL/BLK”, “YEL/BLU”,
“LT GRN/BLK” or “BLK”
circuit for power supply
open.
Replace A/T relay.
4 Check TCM ground circuit
1) Turn ignition switch OFF.
2) With TCM connectors disconnected, check for proper
connection to TCM at “C34-1” / “C34-23” terminal.
3) If OK, check resistance between “C34-1” / “C34-23” terminal of disconnected TCM connector and body
ground.
Is continuity indicated? TCM power and ground
circuits are in good
condition.
“BLK” circuit for TCM
ground open.
I4RS0A510047-01
I4RS0A510048-01

Downloaded from www.Manualslib.com manuals search engine Table of Contents 6- i
6
Section 6
CONTENTS
Steering
Precautions ................................................. 6-1
Precautions............................................................. 6-1
Precautions on Steering........................................ 6-1
Steering General Diagnosi s.................... 6A-1
Precautions........................................................... 6A-1
Precautions for Steering Diagnosis ..................... 6A-1
Diagnostic Information and Procedures ............ 6A-2 Steering Symptom Diagnosis .............................. 6A-2
Steering Wheel and Column ................... 6B-1
Precautions........................................................... 6B-1
Service Precautions of Steering Wheel and Column.............................................................. 6B-1
General Description ............................................. 6B-1 Steering Wheel and Column Construction .......... 6B-1
Diagnostic Information and Procedures ............ 6B-2 Checking Steering Column for Accident Damage ............................................................ 6B-2
Repair Instructions .............................................. 6B-3 Steering Wheel and Column Construction .......... 6B-3
Steering Wheel Removal and Installation ........... 6B-4
Contact Coil Cable Assembly Removal and Installation ......................................................... 6B-5
Centering Contact Coil Cable Assembly ............. 6B-6
Contact Coil Cable Assembly Inspection ............ 6B-6
Steering Angle Sensor Removal and Installation ......................................................... 6B-6
Steering Angle Sensor Inspection ....................... 6B-6
Steering Column Removal and Installation ......... 6B-7
Steering Column Inspecti on ................................ 6B-8
Ignition Switch Cylinder Assembly Removal and Installation (Non- Keyless Start Model)...... 6B-9
Steering Lock Assembly (Ignition Switch) Removal and Installation................................... 6B-9
Steering Lower Shaft Removal and Installation ....................................................... 6B-10
Specifications ..................................................... 6B-11
Tightening Torque Specifications ...................... 6B-11
Special Tools and Equipmen t ........................... 6B-11
Special Tool ...................................................... 6B-11
Power Assisted Steering System........... 6C-1
Precautions........................................................... 6C-1 Steering System Note .........................................6C-1
Precautions in Diagnosing Troubles ...................6C-1
General Description .............................................6C-2 P/S System Description ......................................6C-2
EPS Diagnosis General Descr iption ...................6C-3
On-Board Diagnostic System Description ...........6C-3
Schematic and Routing Diagram ........................6C-4 EPS System Wiring Circuit Diagram ...................6C-4
Diagnostic Information and Procedures ............6C-5 EPS System Check .............. ...............................6C-5
“EPS” Warning Light Check . ...............................6C-8
DTC Check..........................................................6C-8
DTC Clearance ...................................................6C-9
DTC Table ...........................................................6C-9
Scan Tool Data .................................................6C-11
Visual Inspection ...............................................6C-12
P/S System Symptom Diagnosis ......................6C-12
Serial Data Link Circuit Check ..........................6C-13
“EPS” Warning Light Do es Not Come ON with
Ignition Switch Turn ed ON before Engine
Starts ...............................................................6C-15
“EPS” Warning Light Remains ON Steady after Engine Starts ..........................................6C-16
DTC C1113: Steering Torque Sensor (Main and Sub) Circuit Correlation ............................6C-17
DTC C1114: Steering Torque Sensor Reference Power Supply Circuit .....................6C-19
DTC C1117: Steering Torque Sensor Failure Signal Circuit Low ...........................................6C-21
DTC C1118: Steering Torque Sensor Failure Signal Circuit High...........................................6C-22
DTC C1119: Steering Torque Sensor Power Supply Circuit ..................................................6C-24
DTC C1121 / C1123 / C1124: VSS Circuit
Failure .............................................................6C-26
DTC C1122: Engine Speed Signal....................6C-28
DTC C1141 / C1142 / C1143 / C1145: P/S Motor Circuit Failure ........................................6C-30
DTC C1153: P/S Control Module Power Supply Circuit Voltage Low .............................6C-32
DTC C1155: P/S Control Module Failure ..........6C-33
P/S Control Module Power Supply and Ground Circuit Check ......................................6C-34
Inspection of P/S Control Module and Its Circuits ............................................................6C-35