
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-54 Automatic Transmission/Transaxle:
DTC Troubleshooting
DTC P0751 / P0752 / P0756 / P0757: Shift Solenoid MalfunctionS6RW0D5104027
DTC P0751: Shift Solenoid-A (No.1) Performance or Stuck OFF
DTC P0752: Shift Solenoid-A (No.1) Stuck ON
DTC P0756: Shift Solenoid-B (No.2) Performance or Stuck OFF
DTC P0757: Shift Solenoid-B (No.2) Stuck ON
DTC Detecting Condition and Trouble Area
DTC P0751
DTC P0752
DTC P0756
DTC P0757Step Action Yes No
1Was “A/T System Check” performed?Go to Step 2. Go to “A/T System
Check”.
2 1) Check TCC solenoid valve for operation referring to
“Solenoid Valves (Shift Solenoid Valves and Timing
Solenoid Valve) Inspection”.
Are they in good condition?Clean fluid passage or
replace valve body
assembly.Replace TCC solenoid
valve.
DTC detecting condition Trouble area
3rd gear ratio is detected although TCM command is for 2nd
gear while vehicle running at 20 km/h (12 mile/h) or more in
“D” range after engine being warmed up.• Mechanical malfunction of shift solenoid valve-A
(No.1)
• Malfunction of valve body assembly
• Fluid passage clogged or leaking
• Mechanical malfunction of automatic transaxle
(clutch, brake or gear etc.)
DTC detecting condition Trouble area
2nd gear ratio is detected although TCM command is for 3rd
gear while vehicle running at 20 km/h (12 mile/h) or more in
“D” range after engine being warmed up.• Mechanical malfunction of shift solenoid valve-A
(No.1)
• Malfunction of valve body assembly
• Fluid passage clogged or leaking
• Mechanical malfunction of automatic transaxle
(clutch, brake or gear etc.)
DTC detecting condition Trouble area
3rd gear ratio is detected although TCM command is for 4th
gear while vehicle running at 20 km/h (12 mile/h) or more in
“D” range after engine being warmed up.• Mechanical malfunction of shift solenoid valve-B
(No.2)
• Malfunction of valve body assembly
• Fluid passage clogged or leaking
• Mechanical malfunction of automatic transaxle
(clutch, brake or gear etc.)
DTC detecting condition Trouble area
4th gear ratio is detected although TCM command is for 3rd
gear while vehicle running at 20 km/h (12 mile/h) or more in
“D” range after engine being warmed up.• Mechanical malfunction of shift solenoid valve-B
(No.2)
• Malfunction of valve body assembly
• Fluid passage clogged or leaking
• Mechanical malfunction of automatic transaxle
(clutch, brake or gear etc.)

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-81
Troubleshooting
Brake Interlock System InspectionS6RW0D5104046
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, 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
1Check TCM back-up power circuit
1) Disconnect TCM connector with ignition switch OFF.
2) Check for proper connection to TCM at “C06-24”
terminal.
3) If OK, check voltage at terminal “C06-24” of
disconnected TCM connector.
Is it 10 – 14 V?Go to Step 2. “WHT/RED” circuit open
or shorted to ground.
2Check TCM power circuit
1) Disconnect TCM connector with ignition switch OFF.
2) Check for proper connection to TCM at “C06-6” terminal.
3) If OK, turn ignition switch ON and check voltage at
terminal “C06-6” of disconnected TCM connector.
Is it 10 – 14 V?Go to Step 4. Go to Step 3.
3Check 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.
4Check TCM ground circuit
1) Turn ignition switch OFF.
2) With TCM connectors disconnected, check for proper
connection to TCM at “C06-1” / “C06-23” terminal.
3) If OK, check resistance between “C06-1” / “C06-23”
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 5A-82 Automatic Transmission/Transaxle:
• With shift lock solenoid release button (1) pushed
and ignition key turned to ACC position, select
lever can be shifted from “P” range position to any
other range.
• With shift lock solenoid release button (1) pushed
and ignition key turned to LOCK position, select
lever can not be shifted from “P” range position to
any other range.• When ignition switch is turned ON and brake
pedal is depressed, select lever can be shifted
from “P” range position to any other range.
3) With ignition lever shifted to any position other than
“P” range, check that ignition key cannot be turned
LOCK position and it cannot be removed from
ignition switch unless it is at LOCK position.
Repair Instructions
Learning Control InitializationS6RW0D5106001
1) Connect san tool to DLC (1) with ignition switch OFF.
Special tool
(A): SUZUKI scan tool (SUZUKI-SDT)
2) Start engine and shift select lever to “P” range.
3) Select “Misc Test” mode on scan tool.
4) Perform “AT learned initialize” on scan tool.
A/T Fluid Level CheckS6RW0D5106002
CAUTION!
Do not use any fluid other than the specified
ATF. Use of any fluid other than the specified
ATF may cause juddering or some other
faulty condition to occur.
Level Check at Normal Operating (Hot) Temperature
– Hot Check
1) Stop vehicle and place it level.
2) Apply parking brake and place chocks against
wheels.
3) With select lever at “P” position, start engine.
4) Warm up engine till fluid temperature reaches
normal operating temperature (70 – 80 °C / 158 –
176 °F). As a guide to check fluid temperature, warm
up engine to normal operating.
5) Keep engine idling and shift select lever slowly to “L”
and back to “P” position.
6) With engine idling, pull out fluid level gauge, wipe it
off with a clean cloth and put it back into place.
1
I4RS0A510049-01
I4RS0A510050-01
I4RS0A510051-01
(A) 1I5RW0C510072-01
![SUZUKI SX4 2006 1.G Service Workshop Manual Downloaded from www.Manualslib.com manuals search engine 5A-88 Automatic Transmission/Transaxle:
Installation
1) Lay interlock cable to its original cabling route.
C
1 2
3
4
5
61
9 [C] [A]
7
12
3
4
5 SUZUKI SX4 2006 1.G Service Workshop Manual Downloaded from www.Manualslib.com manuals search engine 5A-88 Automatic Transmission/Transaxle:
Installation
1) Lay interlock cable to its original cabling route.
C
1 2
3
4
5
61
9 [C] [A]
7
12
3
4
5](/manual-img/20/7612/w960_7612-735.png)
Downloaded from www.Manualslib.com manuals search engine 5A-88 Automatic Transmission/Transaxle:
Installation
1) Lay interlock cable to its original cabling route.
C
1 2
3
4
5
61
9 [C] [A]
7
12
3
4
567
8
2 [B]
I5RW0C510073-01
[A]: LH steering vehicle 2. Clamp 6. EPS control module
[B]: RH steering vehicle 3. Steering lock assembly / Steering lock unit (if equipped with Keyless
start system)7. Brake switch bracket
[C]: View C 4. Key cylinder cover 8. Wiring harness
1. Key interlock cable 5. Select lever assembly 9. Marking