2006 SUZUKI SX4 Starting system

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-47
DTC Troubleshooting
DTC P0712: Transmission Fluid Temperature Sensor Circuit LowS6RW0D5104022
Wiring Diagram
DTC Detecting Condition and Trouble AreaStep Action Yes No
1Was “A/T System Check” performed?Go to Step 2. Go to “A/T System
Check”.
2Inspect transmission fluid temperature sensor
1) Inspect transmission fluid temperature sensor referring
to “Transmission Fluid Temperature Sensor Inspection”.
Is result satisfactory?Go to Step 3 Replace transmission
fluid temperature
sensor.
3Check for transmission fluid temperature sensor circuit
1) Turn ignition switch to OFF position.
2) Disconnect valve body harness connector and TCM
connectors.
3) Check for proper connection to TCM at terminals “C06-
11” and “C06-12”. If connection is OK, check circuit for
open, short and high resistance for the following circuit.
• Between “C06-11” terminal of TCM connector and “LT
GRN” terminal of valve body harness connector.
• Between “C06-12” terminal of TCM connector and
“ORN” terminal of valve body harness connector.
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.Repair “LT GRN” and/or
“ORN” circuit.
5V
C06-11
C06-12
LT GRN
ORN
23
12 11
C06C07
[A]
1
I6RW0B510009-03
1. TCM 3. A/T
2. Transmission fluid temperature sensor [A]: Terminal arrangement of TCM connector (viewed from harness side)
DTC detecting condition Trouble area
Transmission temperature sensor terminal voltage is less
than specified value for 5 minutes or more after starting
engine.• Transmission fluid temperature sensor or its circuit
malfunction
•TCM

Downloaded from www.Manualslib.com manuals search engine 5A-48 Automatic Transmission/Transaxle:
DTC Confirmation Procedure
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.

1) Connect scan tool to DLC with ignition switch OFF, if available.
2) Clear DTC in TCM memory and start engine and keep for 20 minutes or more.
3) Stop vehicle and check DTC.
DTC Troubleshooting
DTC P0713: Transmission Fluid Temperature Sensor Circuit HighS6RW0D5104023
Wiring Diagram
DTC Detecting Condition and Trouble AreaStep Action Yes No
1Was “A/T System Check” performed?Go to Step 2. Go to “A/T System
Check”.
2Check transmission fluid temperature circuit for ground
short
1) Check continuity between terminal “C06-11” of
disconnected harness side TCM connector and ground.
Is continuity indicated?“LT GRN” circuit shorted
to ground.Go to Step 3.
3Inspect transmission fluid temperature sensor
1) Inspect transmission fluid temperature sensor referring
to “Transmission Fluid Temperature Sensor Inspection”.
Is result satisfactory?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.Replace transmission
fluid temperature
sensor.
5V
C06-11
C06-12
LT G R N
ORN
23
12 11
C06C07
[A]
1
I6RW0B510009-03
1. TCM 3. A/T
2. Transmission fluid temperature sensor [A]: Terminal arrangement of TCM connector (viewed from harness side)
DTC detecting condition Trouble area
Transmission fluid temperature sensor terminal voltage is
more than specified value even though engine was running in
“R”, “D”, “3”, “2” or “L” range for 12 minutes after starting
engine.• Transmission fluid temperature sensor or its circuit
malfunction
•TCM

Downloaded from www.Manualslib.com manuals search engine Power Assisted Steering System: 6C-9
DTC ClearanceS6RW0D6304004
1) Turn ignition switch to OFF position.
2) Connect SUZUKI scan tool to data link connector
(DLC) (1) located on underside of instrument panel
at driver’s seat side.
Special tool
(A): SUZUKI scan tool3) Turn ignition switch to ON position.
4) Erase DTC according to the instructions displayed
on SUZUKI scan tool. For further details, refer to
operator’s manual for SUZUKI scan tool.
5) After completing the clearance, turn ignition switch to
OFF position and disconnect SUZUKI scan tool from
DLC.
DTC TableS6RW0D6304005
CAUTION!
Be sure to perform the “EPS System Check” before starting troubleshooting corresponding to each
DTC.

(A)
1I5RW0A630004-01
DTC No. Detecting itemDetecting condition
(DTC will set when detecting)Trouble area DTC“EPS”
warning
light
No
CODESNormal — — — —
) C1111Steering torque sensor
(Main) circuit voltageCircuit voltage of sensor main is
more than 4.5 V or less than 0.5
V
• Torque sensor signal
circuit
• Torque sensor
• P/S control module1 driving
cycle1 driving
cycle
)
C1113Steering torque sensor
(Main and Sub) circuit
correlationDifference between steering
torque calculated based on
sensor main signal and steering
torque calculated based on
sensor sub signal is more than
4.9 N⋅m
or
Difference between
instantaneous value and average
value of steering torque
calculated based on sensor main
signal and steering torque
calculated based on sensor sub
signal is more than 2.94 N⋅m1 driving
cycle1 driving
cycle
)
C1115Steering torque sensor
(Sub) circuit voltageCircuit voltage of sensor sub
signal is more than 4.5 V or less
than 0.5 V1 driving
cycle1 driving
cycle
)
C1116Steering torque sensor
power supply circuit Circuit voltage of torque sensor 9
V power supply is less than 7 V• Torque sensor 9 V
power supply circuit
• Torque sensor
• P/S control module1 driving
cycle1 driving
cycle

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Manual Type 7B-3
Manual A/C Electronic Input Output TableS6RW0D7211002
A/C Operation Description at ECMS6RW0D7211003
ECM controls the A/C compressor relay and condenser cooling fan relay according to signals from HVAC control unit,
A/C refrigerant pressure sensor, ECT sensor and evaporator temperature sensor. The A/C switch ON signal from
HVAC control unit is transmitted to ECM through BCM. For CAN communication system, refer to “CAN
Communication System Description in Section 1A”.
ECM turns ON the A/C compressor relay when the vehicle state satisfy conditions described below.
• A/C switch ON signal is inputted from HVAC control unit
• A/C refrigerant pressure is within specified range
• Evaporator temperature is within specified range
• Engine speed is within specified range
• Engine coolant temperature is lower than specified value
• Throttle opening is lower than specified value
• Vehicle is not in either state of starting or quick acceleration
• ECT sensor malfunction is not detected
• A/C refrigerant pressure sensor malfunction is not detected
Condenser Cooling Fan Relay Control
ECM turn ON the condenser cooling fan relay at the same time when ECM turn ON the A/C compressor relay.
ECM
BCM
A/C switch Air intake selector
A/C refrigerant pressure sensor
A/C evaporator temperature sensorCompressor relay
ECT sensor
Condensor cooling fan relay
*
Wheel speed sensor (VSS)
HVAC control unit
Blower motor Blower motor resistor
Air intake control actuator
*Blower speed selector
ABS control module
I6RW0C721001-01
*: CAN communication

Downloaded from www.Manualslib.com manuals search engine 7B-40 Air Conditioning System: Automatic Type
HVAC Control DescriptionS6RW0D7221002
Temperature Control
HVAC control module calculates the target temperature
control door position based on signals from the
temperature selector, inside air temperature sensor,
outside air temperature sensor and sunload sensor and
controls the temperature control actuator so that the
current position of the temperature control door matches
its target position.
Fan Speed Control
HVAC control module calculates the target blower fan
speed based on signals from the temperature selector,
inside air temperature sensor, outside air temperature
sensor, ECT sensor and sunload sensor, compares it
with the current blower fan speed inputted from the
blower motor controller to control the current blower fan
speed to the target level.
Air Flow Outlet Control
HVAC control module calculates the target temperature
control door position based on signals from the
temperature selector, inside air temperature sensor,
outside air temperature sensor, ECT sensor and sunload
sensor. Using thus obtained target temperature control
door position, it further calculates the target air flow
control door position and controls the air flow control
actuator so that the current air flow control door position
becomes the target position.
Air Intake Position Control
HVAC control module determines the position of the air
intake control door based on signals from the
temperature selector, inside air temperature sensor,
outside air temperature sensor and sunload sensor and
selects any of the following positions by controlling the
position of the air intake control door.
• FRESH position (FRE)
• RECIRCULATION position (REC)
• MIX position (MIX)A/C Compressor Relay Control
HVAC control module outputs A/C switch ON signal to
ECM via BCM when the vehicle state satisfy conditions
described below.
• A/C switch is ON
• Evaporator temperature is higher than specified value
• Evaporator temperature sensor malfunction is not
detected
Communication of ECM and BCM is established by CAN
(Controller Area Network). (For more detail of CAN
communication, refer to “CAN Communication System
Description in Section 1A”).
ECM turns ON the A/C compressor relay when the
vehicle state satisfy conditions described below.
• A/C switch ON signal is inputted
• A/C refrigerant pressure is within specified range
• Engine speed is within specified range
• Engine coolant temperature is lower than specified
value
• Throttle opening is lower than specified value
• Vehicle is not in either state of starting or quick
acceleration
• ECT sensor malfunction is not detected
• A/C refrigerant pressure sensor malfunction is not
detected
Condenser Cooling Fan Relay Control
ECM turn ON the condenser cooling fan relay at the
same time when ECM turn ON the A/C compressor
relay.
Sub-Cool A/C System DescriptionS6RW0D7221003
Refer to “Sub-Cool A/C System Description”.

Downloaded from www.Manualslib.com manuals search engine 7B-52 Air Conditioning System: Automatic Type
DTC TableS6RW0D7224006
CAUTION!
Be sure to perform “Air Conditioning System Check” before starting diagnosis.

NOTE
• History DTC is such DTC which HVAC control module saves in its memory when it detects current
DTC for 60 seconds or more continuously.
• DTC B1504, B1541, B1546, B1570 and B1571 are displayed as a current DTC only when a current
malfunction is detected.
• When HVAC control module detects DTC B1513 and B1514, both current and history DTCs are
displayed at the same time.

DTC No.
(displayed
on SUZUKI
scan tool)Detection itemDTC (indicated on
HVAC control
module)
Condition when trouble detected (DTC is
determined when following condition detected)“A/C”
indicator
light Indicated
by “REC”
indicator
lightIndicated
by “FRE”
indicator
light
) B1502Inside Air
Temperature
Sensor Circuit
Malfunction21Signal voltage of inside air temperature sensor is
higher than specification.Flashed
22Signal voltage of inside air temperature sensor is
lower than specification.Flashed
) B1503Evaporator
Temperature
Sensor Circuit
Malfunction31Signal voltage of evaporator temperature sensor is
higher than specification. Flashed
32Signal voltage of evaporator temperature sensor is
lower than specification.Flashed
) B1504Sun load Sensor
Circuit
Malfunction41• Signal voltage of sun load sensor is higher than
specification.
• Without sunlight.—
42Signal voltage of sun load sensor is lower than
specification.Flashed
) B1511Temperature
Control Actuator
(Position Sensor)
and/or Its Circuit
Malfunction61Signal voltage of position sensor included in
temperature control actuator is higher than
specification.Flashed
62Signal voltage of position sensor included in
temperature control actuator is lower than
specification.Flashed
) B1512Air Flow Control
Actuator
(Position Sensor)
and/or Its Circuit
Malfunction71Signal voltage of position sensor included in airflow
control actuator is higher than specification. Flashed
72Signal voltage of position sensor included in airflow
control actuator is lower than specification.Flashed
) B1513Temperature
Control Actuator
(Motor) and/or Its
Circuit
Malfunction63
Motor of temperature control actuator is not
operated more than specified time.Flashed
) B1514Air Flow Control
Actuator (Motor)
and/or Its Circuit
Malfunction73Motor of air flow control actuator is not operated
more than specified time.Flashed
) B1520Temperature
Selector
Malfunction15 1Signal voltage of temperature selector in HVAC
control module is higher than specification.Flashed
15 2Signal voltage of temperature selector in HVAC
control module is lower than specification.Flashed

Downloaded from www.Manualslib.com manuals search engine 8A-5 Seat Belts:
Front Seat Belt Removal and InstallationS6RW0D8106002
WARNING!
• Never attempt to disassemble or repair the
retractor (seat belt pretensioner). If any
abnormality is found, be sure to replace it
with new one as an assembly.
• Be sure to read “Precautions on Service
and Diagnosis of Seat Belt” before starting
to work and observe every precaution
during work. Neglecting them may result in
personal injury or unactivation of the seat
belt pretensioner when necessary.

Removal
1) Disconnect negative (–) cable at battery.
2) Disable air bag system. Refer to “Disabling Air Bag
System in Section 8B”.
3) Remove center pillar lower trim.
4) Disconnect connector (1) from retractor (seat belt
pretensioner) (2) as following steps.
a) Unlock lock button (3) by pulling it.
b) After unlocked, disconnect connector.
5) Remove front seat belts from the vehicle.Installation
Install in reverse order of removal, noting the following.
• Seat belt anchor bolts should have an unified fine
thread (7/16-20 UNF). Under no circumstances
should any different sized or metric screw threads be
used.
• Connect seat belt pretensioner connector (1) to
retractor (seat belt pretensioner) securely as following
steps.
a. Make sure that lock button (2) is unlock position.
b. Insert connector to retractor (seat belt
pretensioner) until it stops with unlocked lock
button (2).
c. Lock connector securely by showing in lock button
(2).
• Enable air bag system. Refer to “Enabling Air Bag
System in Section 8B”.
2
1
3
I5RW0A810002-02
1
2
I5RW0A810003-03

Downloaded from www.Manualslib.com manuals search engine Seat Belts: 8A-6
Front Seat Belt InspectionS6RW0D8106003
WARNING!
• Never attempt to disassemble or repair the
seat belt pretensioner (retractor). If any
abnormality is found, be sure to replace it
with new one as an assembly.
• Be sure to read “Precautions on Service
and Diagnosis of Seat Belt”, before
starting to work and observe every
precaution during work. Neglecting them
may result in personal injury or
unactivation of the seat belt pretensioner
when necessary.
• Never measure resistance of pretensioner
or disassemble it. Otherwise, personal
injury may result.

CAUTION!
If seat belt pretensioner (retractor) was
dropped from a height of 30 cm (1 ft) or more,
it should be replaced.

Seat belts and attaching parts can affect the vital
components and systems of a vehicle.
Therefore, they should be inspected carefully and
replaced with genuine parts only.
Seat Belt
• The seat belt webbing or strap should be free from
damage.
Retractor (with Seat Belt Pretensioner)
1) Let the seat belt retract fully to confirm its easy
retraction.
• The retractor should lock webbing when pulled
quickly.
• The front seat belt retractor (1) should pass the
inspection and should lock webbing even when
tilted (approx. 15°) toward the fore and aft or right
and left directions.2) Check retractor (1) with seat belt pretensioner
appearance visually for following symptoms and if
any one of them is applicable, replace it with a new
one as an assembly.
• Pretensioner has activated.
• There is a crack in seat belt pretensioner
(retractor).
• Seat belt pretensioner (retractor) is damaged or a
strong impact (e.g., dropping) was applied to it.
Anchor Bolt
• Anchor bolts should be torqued to specification.
Belt Latch
• It should be secure when latched.
Seat Belt Buckle Switch
Check driver side seat belt switch and passenger side
seat belt switch for continuity by using ohmmeter.
Seat belt switch specification
Without inserted buckle tongue to buckle catch:
Terminal “A” and “B”: Continuity
With inserted buckle tongue to buckle catch:
Terminal “A” and “B”: No continuityI2RH01810004-01
1. Buckle tongue
2. Buckle catch
I2RH01810005-01
I4RS0B810001-01