2006 SUZUKI SX4 Ecm

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 5A-34 Automatic Transmission/Transaxle:
A/T Symptom DiagnosisS6RW0D5104017
Trouble Diagnosis 1
Electrical repair
Condition Possible cause Correction / Reference Item
Excessive shift shockShift 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.
Timing solenoid valve circuit faulty only
when N → D or 3 ↔ 4 shiftingInspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor (VSS) circuit
faultyInspect circuit for open, short and intermittent.
If NG, repair.
Input shaft speed 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.
Crankshaft position sensor circuit faultyInspect circuit for open, short and intermittent
referring to “DTC P0335: Crankshaft Position
(CKP) Sensor Circuit in Section 1A”. If NG,
repair.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck.
No gear shift as 3rd gearShift 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.
Timing solenoid valve circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
TCMSubstitute a known-good TCM and recheck.
Poor 1
→ 2 shiftShift solenoid valve-B 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.
Transmission range 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.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-35
Poor 2 → 3 shiftShift solenoid valve-A 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.
Transmission range 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.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck.
Poor 3
→ 4 shiftShift solenoid valve-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.
Timing 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.
Crankshaft position sensor circuit faultyInspect circuit for open, short and intermittent
referring to “DTC P0335: Crankshaft Position
(CKP) Sensor Circuit in Section 1A”. If NG,
repair.
“3” position switch circuit faultyInspect. If NG, repair.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck. Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine 5A-36 Automatic Transmission/Transaxle:
Poor 4 → 3 shiftShift solenoid valve-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.
Timing 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.
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.
“3” position switch circuit faultyInspect. If NG, repair.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck.
Poor 3
→ 2 shiftShift solenoid valve-A 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.
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.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck.
Poor 2
→ 1 shiftShift solenoid valve-A 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.
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.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck.
Incorrect gear shift pointOutput shaft speed sensor (VSS) circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve 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.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck. 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-42 Automatic Transmission/Transaxle:
DTC P0602: Control Module Programming ErrorS6RW0D5104047
System Description
Internal control module is installed in ECM.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool.
3) Start engine and run it at idle if possible.
4) Check DTC and pending DTC by using scan tool.
DTC Troubleshooting
DTC P0705: Transmission Range Sensor Circuit Malfunction (PRNDL Input)S6RW0D5104020
Wiring DiagramDTC detecting condition Trouble area
Data programming error
(1 driving cycle detection logic)TCM
Step Action Yes No
1DTC check
1) Clear DTC referring to “DTC Clearance”.
2) Turn OFF ignition switch.
3) Turn ON ignition switch and check DTC.
Is DTC P0602 still indicated?Go to Step 2. Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
2TCM power ground circuit check
1) Check that TCM power supply circuit and TCM ground
circuit is in good condition referring to “TCM Power and
Ground Circuit Check”.
Are check results OK?Substitute a known-
good TCM and recheck.Repair TCM power or
ground circuit.
2P
R
N
D
2
L3
1
PNK/BLK
RED
GRN
GRN/ORN
GRN/YEL
IG1
RED/BLK
LT GRN/BLK
C07-20
C07-1
C07-8
C07-7
C07-19
C07-18
C06
20 1987
18 1
C07
[A]
I6RW0B510008-01
1. TCM 3. Backup lamp
2. Transmission range sensor [A]: Terminal arrangement of TCM connector (viewed from harness side)

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-51
DTC P0722: Output Speed Sensor (VSS) Circuit No SignalS6RW0D5104025
Wiring Diagram
DTC Detecting Condition and Trouble Area3Inspect input shaft speed sensor
1) Inspect input shaft speed sensor referring to “Input Shaft
Speed Sensor Inspection”.
Is result satisfactory?“WHT” or “BLK” circuit
open or short.Replace input shaft
speed sensor.
4Check visually input shaft speed sensor and direct
clutch drum for the following
• No damage
• No foreign material attached
• Correct installation
Are they in good condition?Intermittent trouble or
faulty TCM.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
If OK, substitute a
known-good TCM and
recheck.Clean, repair or replace. Step Action Yes No
I2RH0B510020-01
12 11
C06C07
[A]
112V
IG1
PPLBLK/WHT
BLK/ORNC07-25
23
I6RW0B510011-01
1. TCM 3. To ECM
2. Output shaft speed sensor (VSS) [A]: Terminal arrangement of TCM connector (viewed from harness side)
DTC detecting condition Trouble area
No output shaft speed sensor signal is detected although
input shaft speed sensor signals are detected with “D”, “2” or
“L” range.• Output shaft speed sensor or its circuit malfunction
• Damaged sensor gear (driven gear)
• Damaged output shaft speed sensor (VSS) drive
gear
•TCM

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-59
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch OFF, if available.
2) Clear DTC in TCM memory.
3) Start engine.
4) Keep engine running at idle speed for 30 seconds or more.
5) Stop vehicle and check DTC.
DTC TroubleshootingDTC detecting condition Trouble area
Difference between actual current of control solenoid valve
circuit and current of control solenoid valve circuit calculated
by ECM is more than specification.• Malfunction of pressure control solenoid valve or its
circuit malfunction
•TCM
Step Action Yes No
1Was “A/T System Check” performed?Go to Step 2. Go to “A/T System
Check”.
2Check 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 terminal of valve body
harness connector at “GRY” and “LT GRN/BLK” circuit.
4) check resistance of pressure control solenoid valve.
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?Go to Step 3. Replace pressure
control solenoid valve or
valve body harness.
1
6 7 8 9
1054
32
2
1
I5RW0C510018-03