light SUZUKI SX4 2006 1.G Service Owners Manual

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-15
6. Output shaft speed sensor (VSS) 14. Transmission range sensor
EngineTorque converter with
torque converter clutch
Oil pumpRegulator valves
in valve body
Planetary gear
unit
Clutches and
brakes
Control valves
in valve body
Shift solenoid valves,
TCC solenoid valve and
Timing solenoid valve Pressure control
solenoid valve
Final gear
reduction unit
Engine control module (ECM)
Body control module (BCM)
Combination meter
· Engine torque signal
· Engine speed signal
Transmission control module (TCM)
· Torque request signal
· Throttle position signal
· Accelerator pedal position signal
· Engine coolant temperature signal
· Brake pedal switch signal
· Driving cycle active
· Warm up cycle active
Accelerator pedal
position sensor
Crank shaft
position sensor
Engine coolant
temperature sensor
Input shaft speed sensor
Brake light switch
“3” position switch
Transmission range sensor
Transmission fluid
temperature sensor
Output shaft speed
sensor (VSS)
Power transmission
Fluid pressure circuit
Electric signal
Data link connector
· Transmission diagnostic trouble code (DTC) · Vehicle speed pulse signal
· Transmission warning light signal
· A/T select lever position signal
· Transmission actual gear position signal
· Transmission oil temperature signal · MIL control signal
ABS control module
· A/C compressor clutch signal
I6RW0D510005-01

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-19
Malfunction Indicator Lamp (MIL) CheckS6RW0D5104003
Refer to the same item in “Malfunction Indicator Lamp (MIL) Check in Section 1A” for checking procedure.
Transmission Warning Light Check (Non-Euro-OBD model)S6RW0D5104053
1) Turn ignition switch ON.
2) Check that transmission warning light lights for about 2 – 4 sec. and then goes OFF.
If anything faulty is found, advance “Transmission Warning Light Circuit Check – Light Does Not Come “ON” at
Ignition Switch ON (Non-Euro-OBD Model)” or “Transmission Warning Light Circuit Check – Light Remains “ON”
at Ignition Switch ON (Non-Euro-OBD Model)”.
DTC TableS6RW0D5104004
NOTE
• There are two types of OBD system depending on the vehicle specification.For identification, refer
to “Precaution on On-Board Diagnostic (OBD) System in Section 1A”.
• For non-Euro-OBD model, some of DTC No. with (*) mark in the following table can not be detected
by TCM depending on vehicle specification and local regulation.
• With the CAN communication OBD generic scan tool, DTC No. with delta (U) mark in the following
table can not be read.
• A: Driving cycles when MIL lighting and storing DTC in TCM memory for Euro OBD model.
• B: Driving cycles when transmission warning light lighting and storing DTC in TCM memory for non-
Euro-OBD model.
• 1 driving cycle: MIL or transmission warning light lights up when DTC is detected during 1 driving
cycle.
• 2 driving cycles: MIL or transmission warning light lights up when the same DTC is detected also in
the next driving cycle after DTC is detected and stored temporarily in the first driving cycle.
• Driving cycle with (*): MIL or transmission warning light does not light up but TCM detects and
stores DTC.

Also check the following items at engine start, if possible.
• Malfunction indicator lamp ----- Operation “Malfunction Indicator Lamp (MIL) Check”
• Transmission warning light ----- Operation “Transmission Warning Light Check (Non-Euro-
OBD model)”
• Charge warning lamp ----- Operation “Generator Symptom Diagnosis in Section 1J”
• Engine oil pressure warning lamp ----- Operation “Oil Pressure Warning Light Symptom Diagnosis in
Section 9C”
• Engine coolant temp. meter ----- Operation “Engine Coolant Temperature (ECT) Meter
Symptom Diagnosis in Section 9C”
• Other parts that can be checked visuallyInspection item Referring
I5RW0C510009-01

Downloaded from www.Manualslib.com manuals search engine 5A-26 Automatic Transmission/Transaxle:
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 (VSS) 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
valveTCC 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.
“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
TRANSAXLE RANGE
Transaxle range detected by signal fed from
transmission range sensor.
D RANGE SIGNAL
ON: Signal which TCM require ECM to increase idle
speed
OFF: Signal which TCM does not require ECM to
increase idle speed
THROTTLE POSITION (%)
Throttle opening ratio computed by duty signal from
ECM.
BRAKE SWITCH
Inputted signal from brake light switch on pedal bracket.
ON: Brake pedal depressed
OFF: Brake pedal released
TORQUE REDUCTION SIGNAL
ON: Signal which TCM require ECM to reduce output
torque at shifting gear
OFF: Signal which TCM does not require ECM to reduce
output torque
ENGINE COOLANT TEMPERATURE (°C, °F)
Engine coolant temperature computed by duty signal
from ECM.
AIR CONDITIONER SIGNAL
ON: Signal which inform that air conditioner compressor
is turned ON.
OFF: Signal which inform that air conditioner
compressor is not turned ON.
SLIP RPM (RPM)
This parameter indicates slipping rotation in the torque
converter (difference between input shaft rotation and
engine rotation)

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-29
O/D → 3 downshift fails to
occurMalfunction of shift solenoid valve-AInspect. If NG, replace.
Malfunction of “3” position switchInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of input shaft speed sensorInspect. If NG, replace.
Malfunction of throttle position sensorInspect. If NG, replace.
Malfunction of timing solenoid valveInspect. If NG, replace.
Malfunction of pressure control solenoid
valveInspect. If NG, replace valve body assembly.
Faulty valve body componentReplace valve body assembly.
Faulty forward clutchInspect. If NG, replace.
3
→ 2 downshift fails to
occurMalfunction of shift solenoid valve-AInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of throttle position sensorInspect. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Faulty one-way No.1 clutchInspect. If NG, replace.
2
→ 1 downshift fails to
occurMalfunction of shift solenoid valve-BInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of throttle position sensorInspect. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Faulty one-way No.2 clutchInspect. If NG, replace.
TCC (lock-up) function
pressure control does not
operateMalfunction of TCC solenoid valveInspect. If NG, replace.
Malfunction of shift solenoid valve-A
and/or -BInspect. If NG, replace.
Malfunction of brake light switchInspect. If NG, replace.
Malfunction of engine coolant
temperature sensorInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of input shaft speed sensorInspect. If NG, replace.
Malfunction of throttle position sensorInspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of transmission fluid
temperature sensorInspect. If NG, replace.
Malfunction of pressure control solenoid
valveInspect. If NG, replace valve body assembly.
Faulty valve body componentReplace valve body assembly.
Faulty torque converterReplace. Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-37
Non operate TCC (lock-
up) systemTCC solenoid valve circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Shift solenoid valve-A and/or-B circuit
faultyInspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faultyInspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor (VSS) circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Input shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission range sensor circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Transmission fluid temperature sensor
circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faultyInspect circuit for open, short and intermittent
referring to “DTC P0122: Throttle Position
Sensor (Main) Circuit Low in Section 1A” and/
or “DTC P0123: Throttle Position Sensor
(Main) Circuit High in Section 1A”. If NG, repair.
Engine coolant temperature sensor
circuit faultyInspect circuit for open, short and intermittent
referring to “DTC P0117: Engine Coolant
Temperature Circuit Low in Section 1A” and/or
“DTC P0118: Engine Coolant Temperature
Circuit High in Section 1A”. If NG, repair.
Brake light switch circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck.
Higher or lower stall
speedPressure control solenoid valve circuit
faultyInspect circuit for open, short and intermittent.
If NG, repair.
TCMSubstitute a known-good TCM and recheck.
Excessive “N”
→ “D” or
“N”
→ “R” time lagPressure control solenoid valve circuit
faultyInspect circuit for open, short and intermittent.
If NG, repair.
Transmission fluid temperature sensor
circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
TCMSubstitute a known-good TCM and recheck.
Higher or lower line
pressurePressure control solenoid valve circuit
faultyInspect circuit for open, short and intermittent.
If NG, repair.
TCMSubstitute a known-good TCM and recheck. Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine 5A-38 Automatic Transmission/Transaxle:
Trouble Diagnosis 2
On-vehicle repair
Condition Possible cause Correction / Reference Item
Unable to run in all rangeFaulty valve body componentReplace valve body assembly.
Excessive shift shockEngine abnormal conditionInspect and repair engine.
Malfunction of shift solenoid valve-A
and/or -BInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of input shaft speed sensorInspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of transmission fluid
temperature sensorInspect. If NG, replace.
Malfunction of timing solenoid valve only
when N → D or 3 ↔ 4 shiftingInspect. If NG, replace.
Malfunction of pressure control solenoid
valveInspect. If NG, replace valve body assembly.
Malfunction of brake light switch except
N → D or N → R shiftingInspect referring to “Brake Light Switch
Inspection in Section 9B”. If NG, replace.
Malfunction of crankshaft position
sensorInspect referring to “Camshaft Position (CMP)
Sensor Inspection in Section 1C”. If NG,
replace.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Poor 1
→ 2 shiftMalfunction of shift solenoid valve-BInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Poor 2
→ 3 shiftMalfunction of shift solenoid valve-AInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Faulty valve body componentReplace valve body assembly.

Downloaded from www.Manualslib.com manuals search engine 5A-40 Automatic Transmission/Transaxle:
Trouble Diagnosis 3
Off-vehicle repairNon operate TCC (lock-
up) systemMalfunction of TCC solenoid valveInspect. If NG, replace.
Malfunction of shift solenoid valve-A
and/or -BInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of input shaft speed sensorInspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of transmission fluid
temperature sensorInspect. If NG, replace.
Malfunction of pressure control solenoid
valveInspect. If NG, replace valve body assembly.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Malfunction of engine coolant
temperature sensorInspect referring to “Engine Coolant
Temperature (ECT) Sensor Inspection in
Section 1C”. If NG, replace.
Malfunction of brake light switchInspect referring to “Brake Light Switch
Inspection in Section 9B”. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Excessive “N”
→ “D” or
“N”
→ “R” time lagMalfunction of transmission fluid
temperature sensorInspect. If NG, replace.
Pressure control solenoid valve circuit
faultyInspect. If NG, replace valve body assembly.
Clogged oil strainerReplace.
Faulty valve body componentReplace valve body assembly. Condition Possible cause Correction / Reference Item
Condition Possible cause Correction / Reference Item
Unable to run in all rangeFaulty oil pumpInspect. If NG, replace.
Seized or broken planetary gearInspect. If NG, replace.
Faulty one-way No.2 clutchInspect. If NG, replace.
Damaged drive plateInspect. If NG, replace.
Faulty forward clutchInspect. If NG, replace.
Faulty reverse clutchInspect. If NG, replace.
Faulty 1st and reverse brakeInspect. If NG, replace.
Faulty torque converterReplace.
Excessive “N”
→ “D” shift
shockFaulty forward clutchInspect. If NG, replace.
Excessive “N”
→ “R” shift
shockFaulty reverse clutchInspect. If NG, replace.
Faulty 1st and reverse brakeInspect. If NG, replace.
Poor 1
→ 2 shift,
excessive shock or
slippageFaulty 2nd brakeInspect. If NG, replace.
Faulty one-way No.1 clutchInspect. If NG, replace.
Poor 2
→ 3 shift,
excessive shock or
slippageFaulty direct clutchInspect. If NG, replace.
Poor 3
↔ O/D shift,
excessive shock or
slippageFaulty forward clutchInspect. If NG, replace.
Faulty O/D and 2nd coast brakeInspect. If NG, replace.
Poor 3
→ 2 shift,
excessive shock or
slippageFaulty direct clutchInspect. If NG, replace.
Faulty one-way No.1 clutchInspect. If NG, replace.
Poor 2
→ 1 shift,
excessive shock or
slippageFaulty 2nd brakeInspect. If NG, replace.
Faulty one-way No.2 clutchInspect. If NG, replace.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-41
Transmission Warning Light Circuit Check – Light Remains “ON” at Ignition Switch ON (Non-Euro-
OBD Model)
S6RW0D5104054
Troubleshooting
Transmission Warning Light Circuit Check – Light Does Not Come “ON” at Ignition Switch ON (Non-
Euro-OBD Model)
S6RW0D5104055
TroubleshootingNon operate TCC (lock-
up) systemFaulty torque converterReplace.
Excessive “N”
→ “D” time
lagFaulty oil pumpInspect. If NG, replace.
Faulty forward clutchInspect. If NG, replace.
Faulty one-way No.2 clutchInspect. If NG, replace.
Leakage from “D” range fluid pressure
circuitOverhaul or replace valve body assembly.
Excessive “N”
→ “R” time
lagFaulty oil pumpInspect. If NG, replace.
Faulty reverse clutchInspect. If NG, replace.
Faulty 1st and reverse brakeInspect. If NG, replace.
Leakage from “R” range fluid pressure
circuitOverhaul or replace valve body assembly.
Poor engine brake in
downshift to “2” rangeFaulty O/D and 2nd coast brakeInspect. If NG, replace.
Poor engine brake in
downshift to “L” rangeFaulty 1st and reverse brakeInspect. If NG, replace. Condition Possible cause Correction / Reference Item
Step Action Yes No
1Diagnostic Trouble Code (DTC) Check
1) Check DTC referring to “DTC Check”.
Is there any DTC(s)?Perform DTC Flow to
repair and retry.Substitute a known-
good TCM and recheck.
If OK, substitute a
known-good
combination meter and
recheck.
Step Action Yes No
1Combination Meter Power Supply Check
1) Turn ignition switch ON.
Does other indicator / warning lights in combination meter
comes ON?Go to Step 2. Repair combination
meter power supply
circuit referring to
“Combination Meter
Circuit Diagram in
Section 9C”.
2 1) TCM power and ground circuit check referring to “TCM
Power and Ground Circuit Check”.
Is it in good condition?Go to Step 3. Repair or replace.
3DTC check
1) Check DTC referring to “DTC Check”.
Is there DTC U0073 or U0100?Go to applicable DTC
diag. flow.Go to Step 4.
4Combination Meter Function Check
1) Turn ignition switch ON.
Does A/T selector position indicator show correct select
lever position?Replace combination
meter.Substitute a known-
good TCM and recheck.

Downloaded from www.Manualslib.com manuals search engine 5A-90 Automatic Transmission/Transaxle:
3) Check that engine starts in “N” and “P” ranges but it
doesn’t start in “D”, “2”, “L” or “R” range. Also, check
that back-up lamp lights in “R” range.
If faulty condition cannot be corrected by adjustment,
disconnect transmission range sensor connector
and check that continuity exists as shown by moving
manual select lever.
Output Shaft Speed Sensor (VSS) Removal and
Installation
S6RW0D5106010
Removal
1) Disconnect negative cable at battery.
2) Disconnect output shaft speed sensor connector (2).
3) Remove output shaft speed sensor (VSS) (1) by
removing its bolt.
Installation
1) Apply A/T fluid to output shaft speed sensor O-ring.
2) Install output shaft speed sensor (VSS) (1) to A/T
case and tighten bolt to specified torque.
Tightening torque
Output shaft speed sensor (VSS) bolt (a): 13
N·m (1.3 kgf-m, 9.5 lb-ft)3) Connect output shaft speed sensor connector (2) to
output shaft speed sensor (VSS) (1).
4) Connect negative cable to battery.
Output Shaft Speed Sensor (VSS) InspectionS6RW0D5106011
1) Connect positive cable of 12 volt battery to “A”
terminal of sensor and ground cable to “C” terminal.
Then using voltmeter, check voltage between “B”
terminal and “C” terminal with output shaft speed
sensor (VSS) driven gear rotated.
If measured voltage (pulse signal) is not as
specified, replace sensor.
Output shaft speed sensor (VSS) output voltage
Pulse signal of alternating 0 – 1 V and 10 – 14 V
2) Check output shaft speed sensor (VSS) driven gear
(1) for wear.
Replace if necessary.
1 2
3
4
5
9
87
6
1
P
R
N
D
2
LTerminal No.
Sensor Position
23456789
I3RH0A510038-01
12I5RW0C510032-01
(a)
12
I5RW0C510033-01
I2RH0B510045-01
I2RH0B510046-01

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-93
7) Remove oil strainer assembly (3).
8) Remove transmission fluid temperature sensor (1)
from sensor clamp.
9) Disconnect solenoid connectors (2).
10) Remove shift solenoid valve-A (No.1) (1), shift
solenoid valve-B (No.2) (2) and timing solenoid valve
(3) by removing bolts.Installation
1) Install shift solenoid valve-A (No.1) (1), shift solenoid
valve-B (No.2) (2) and timing solenoid valve (3).
Tightening torque
Shift solenoid bolt (a): 11 N·m (1.1 kgf-m, 8.0 lb-
ft)
2) Connect solenoid connectors identifying their
installing positions by wire color.
3) Install transmission fluid sensor (6) and sensor wire
to clamp.
I2RH0B510054-01
2
1
I5RW0C510038-02
12
3
I4RS0A510028-01
Solenoid coupler Wire color
Shift solenoid valve-A (No.1) (2) White
Shift solenoid valve-B (No.2) (3) Black
Timing solenoid valve (1) Yellow
TCC pressure control solenoid
valve (4)Light green / Brown
Pressure control solenoid valve
(5)Green / Gray
12
3 (a)
I4RS0A510029-01
2 4
6
1
3
5
I5RW0C510039-02