lights SUZUKI SX4 2006 1.G Service Owner's Manual

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
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I2RH0B510045-01
I2RH0B510046-01

Downloaded from www.Manualslib.com manuals search engine Power Assisted Steering System: 6C-3
EPS Diagnosis General DescriptionS6RW0D6301002
The P/S system in this vehicle is controlled by the P/S control module. The P/S control module has an on-board
diagnostic system which detects a malfunction in this system. When diagnosing troubles, be sure to have full
understanding of the outline of “On-Board Diagnostic System Description” and each item in “Precautions in
Diagnosing Troubles”, and then execute diagnosis according to “EPS System Check”.
On-Board Diagnostic System DescriptionS6RW0D6301003
The P/S control module performs the on-board diagnosis (self-diagnosis) on the system and operates the “EPS”
warning light (1) as follows.
• The “EPS” warning light lights when the ignition switch is turned to ON position (but the engine at stop) regardless
of the condition of the P/S control system. This is only to check if the “EPS” warning light is operated properly.
• If the areas monitored by the P/S control module is free from any trouble after the engine start (while engine is
running), the “EPS” warning light turns OFF.
• When the P/S control module detects a trouble which has occurred in the monitored areas the “EPS” warning light
comes ON while the engine is running to warn the driver of such occurrence of the trouble and at the same time it
stores the exact trouble area in memory inside of the P/S control module.
Driving Cycle
A “Driving Cycle” consists of engine startup and engine shutoff.
3 Driving Cycles Detection Logic
The malfunction detected in the first and second driving cycle is stored in P/S control module memory (in the form of
pending DTC) but the “EPS” warning light does not light at these time. It lights up at the third detection of same
malfunction also in the next driving cycle.
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I7RW01632002-01

Downloaded from www.Manualslib.com manuals search engine 6C-8 Power Assisted Steering System:
Step 8: Steering Symptom Diagnosis and P/S
System Symptom Diagnosis
Perform basic steering system check according to
“Steering Symptom Diagnosis in Section 6A” first. When
the end of the flow has been reached, check the parts of
the system suspected as a possible cause referring to
“P/S System Symptom Diagnosis” and based on
symptoms appearing on the vehicle (symptoms obtained
through steps of customer complaint analysis, trouble
symptom confirmation and/or basic P/S system check)
and repair or replace faulty parts, if any.
Step 9: Troubleshooting for DTC (See each DTC
Diag. Flow)
Based on the DTC indicated in Step 6 or 7 and referring
to the applicable DTC diag. flow, locate the cause of the
trouble, namely in a sensor, switch, wire harness,
connector, actuator, P/S control module or other part and
repair or replace faulty parts.
Step 10: Intermittent Problems Check
Check parts where an intermittent trouble is easy to
occur (e.g., wire harness, connector, etc.), referring to
“Intermittent and Poor Connection Inspection in Section
00” and related circuit of DTC recorded in Step 2.
Step 11: Final Confirmation Test
Confirm that the problem symptom has gone and the P/
S system is free from any abnormal conditions. If what
has been repaired is related to the DTC, clear the DTC
once, perform DTC confirmation procedure and confirm
that no DTC is indicated.
“EPS” Warning Light CheckS6RW0D6304002
1) Turn ignition switch to ON position (but without
running engine) and check if the “EPS” warning light
(1) lights up. If the light dose not light up, go to
““EPS” Warning Light Does Not Come ON with
Ignition Switch Turned ON before Engine Starts” of
the diagnostic flows.
2) Start engine and check that “EPS” warning light turns
OFF. If light remains ON and no DTC is stored in P/S
control module, go to ““EPS” Warning Light Remains
ON Steady after Engine Starts” for troubleshooting.
DTC CheckS6RW0D6304003
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 tool
3) Start engine.
4) Read DTC according to the instructions displayed on
SUZUKI scan tool. For further details, refer to
operator’s manual for SUZUKI scan tool.
NOTE
• If communication between SUZUKI scan
tool and the vehicle can not be
established, perform “DLC and Its
Communication Check (No communication
to P/S Control Module)”.
• DTC C1122 (engine speed signal failure) is
indicated when ignition switch is at ON
position and engine is not running, but it
means there is nothing abnormal if
indication changes to a normal one when
engine is started.

5) After completing the check, turn ignition switch to
OFF position and disconnect SUZUKI scan tool from
DLC.
1
I7RW01632002-01
(A)
1I5RW0A630004-01

Downloaded from www.Manualslib.com manuals search engine 7B-50 Air Conditioning System: Automatic Type
Not Using SUZUKI Scan Tool
NOTE
In case of malfunction of temperature
selector, blower speed selector and air flow
selector, DTC can not be checked by the
following procedure. Use SUZUKI scan tool
for DTC check.

1) Light over sunload sensor vertically with an
incandescent light of approximately 100 W apart
from about 100 mm (3.94 in.).
NOTE
If sunload sensor is not lighted over with an
incandescent light, DTC of sunload sensor is
detected as current DTC even though there is
not any malfunction.

2) Set the following selectors to specified positions
below respectively with ignition switch off position.
• Temperature selector (1) is maximum cool
position
• Blower speed selector (2) is OFF position
• Air flow selector (3) is AUTO position
3) While pressing A/C switch (4) and air intake selector
(5) simultaneously, turn ignition switch to ON
position.
4) Wait for about 5 seconds (start of diagnosis).
5) Read flashing pattern of “FRE” (6) and “REC” (7)
indicator lights which represents DTC and write it
down.
NOTE
• When 2 or more current DTCs are
detected, only DTC having the highest
priority is indicated. Therefore, after
troubleshooting the malfunction, DTC
check has to be performed again to see if
any other DTC(s) is detected.
• Pressing “A/C” switch alternates display
of current DTC and history DTC. “A/C”
indicator light (8) remains off when display
is in current DTC mode and it lights up
when display is in history DTC mode.
• When a history DTC is indicated while 2 or
more history DTCs are detected, it is
possible to have other history DTC(s)
stored in HVAC control module displayed
by pressing the air intake selector.

Example: When inside air temperature sensor
circuit malfunction (Open) is set
Example: When VSS signal failure (Data error) is
set
6) After completing above check, turn ignition switch to
“OFF” position.
[A]: “REC” indicator light L: OFF
[B]: “FRE” indicator light a. About 0.5 seconds
H: ON b. About 2 seconds
[A]: “REC” indicator light a. About 0.5 seconds
[B]: “FRE” indicator light b. About 3 seconds
H: ON c. About 1.5 seconds
L: OFF
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7I5RW0A722005-01
[A]
[B]H
L
H
L [B]
[A]
ab
aI5RW0A722006-02
[A]
[B]H
L
H
L [B]
[A]
ab
aaaa
c
I5RW0A722025-01

Downloaded from www.Manualslib.com manuals search engine 7B-54 Air Conditioning System: Automatic Type
DTC of A/C System detected by ECM
NOTE
When no DTC is detected, “FRE” [A] and “REC” [B] indicator lights on HVAC control module flash at
the same time in specific pattern.

Fail-Safe TableS6RW0D7224007
When any of the following malfunctions (DTCs) is detected, fail-safe mode is activated.
However, when HVAC control module detects normal operation of A/C system, fail-safe mode is canceled. DTC No. Detection itemDetecting condition
(DTC will set when detecting)MIL
P0481 Fan 2 Control Circuit
Refer to “Fail-Safe Table in Section 1A”. P0532A/C Refrigerant Pressure
Sensor Circuit Low
P0533A/C Refrigerant Pressure
Sensor Circuit High
H: ON a. About 3 seconds
L: OFF b. About 1 seconds
DTC No. Trouble AreaFail-Safe Operation
When ignition switch is turned ON
after malfunction is already detectedWhen malfunction is detected during
ignition switch is ON
) B1502Inside air temperature
sensor circuitHVAC control module maintains last
normal value.HVAC control module controls actuators
assuming that inside air temperature is
25 °C (77 °F).
) B1503A/C evaporator
temperature sensor
circuitHVAC control module assuming that
evaporator temperature is 0 °C (32 °F).• HVAC control module turns off A/C
switch signal.
• HVAC control module controls
actuators assuming that evaporator
temperature is 0 °C (32 °F).
) B1504 Sunload sensor circuitHVAC control module maintains last
normal value.HVAC control module controls actuators
assuming that amount of sunlight is 0 W/
m
2.
) B1520Temperature selector
malfunctionHVAC control module maintains last
normal value.HVAC control module controls actuators
assuming that setting of temperature
selector is 25 °C (77 °F) position.
) B1521Blower speed selector
malfunctionHVAC control module maintains last
normal value.HVAC control module controls actuators
assuming that setting of blower speed
selector is low (1st) position.
) B1522Air flow selector
malfunctionHVAC control module maintains last
normal value.HVAC control module controls actuators
assuming that setting of air flow selector
is DEF position.
[A]
[A]H
L
H
L [B]
[B]
baaba
baaba
I5RW0A722008-01

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-85
Blower Motor Controller InspectionS6RW0D7226012
1) Check internal circuit of controller for resistance as
follows.
a) Measure resistance between “1” terminal and “2”
terminal of blower motor controller.
Blower motor controller resistance
“1” – “2”: approximately 10 kΩ
If resistance does not meet above specification,
replace blower motor controller.
b) Using ohmmeter, connect its positive terminal to
“3” terminal of blower motor controller and
negative terminal to “1” terminal of blower motor
controller and check that there is no continuity.
2) Check controller for operation as follows.
a) Using bulb (3.4 W) (5) and service wire, connect
battery positive terminal to “3” terminal of blower
motor controller as shown in figure.
b) Using service wire, connect battery negative
terminal to “1” terminal of blower motor
controller.
c) Arrange 3 new 1.5 V batteries (6) in series
(check that total voltage is 4.5 – 5.0 V) and
connect its positive terminal to “2” terminal of
blower motor controller and negative terminal to
“1” terminal of blower motor controller.
Then, check that bulb lights. If bulb does not light
under the above conditions, replace blower
motor controller.
HVAC Control Module Removal and InstallationS6RW0D7226013
Removal
1) Remove audio unit from instrument panel referring to
“Audio Unit Removal and Installation (If Equipped) in
Section 9C”.
2) Remove HVAC control module (1) with its garnish (2)
from instrument panel.
3) Remove HVAC control module from garnish.
Installation
Reverse removal procedure.
Sunload Sensor Removal and InstallationS6RW0D7226014
Removal
1) Disconnect negative (–) cable at battery.
2) Remove combination meter from instrument panel
referring to “Combination Meter Removal and
Installation in Section 9C”.
3) Remove sunload sensor (1) from instrument panel
by depressing tab and pushing sensor upward from
underneath.
4) Disconnect sunload sensor connector (2).
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3
1 2 4
5
6I7RW01722027-01
12
I5RW0A722024-02
1
2
I7RW01722028-01

Downloaded from www.Manualslib.com manuals search engine Lighting Systems: 9B-2
Igniter
Igniter generates high voltage needed to turn on the discharge headlight. It is charged with high voltage raised by the
ballast and it applies voltage pulse as high as about 20,000V to the tungsten electrode in the discharge headlight bulb.
After the discharge headlights light up, the ballast supplies voltage to bulbs.
Discharge headlight bulb
Discharge headlight bulb is used for the low beam. It does not have a filament but xenon gas (1), mercury (3) and
metal iodide (2) sealed in it. It lights up when its tungsten electrodes (4) apply high voltage to these contents.
Fail-safe function of discharge headlight
As the ballast has a fail-safe function which stops supply of the voltage to the igniter when it detects any of the
following condition.
• Ignition switch is set to “HEAD” position while igniter is not connected to discharge headlight bulb
• Discharge headlight does not light up even when lighting switch is set to “HEAD” position.
• Ballast detects a short in the circuit between discharge headlight bulb and ballast when lighting switch is at “HEAD”
position.
Headlight Auto Leveling System Description (If Equipped)S6RW0D9201002
Headlight Auto Leveling System adjusts the optical axis of the headlight automatically to be suitable for the varied
vehicle position while the headlights are lit. It consists of front height sensor (1), rear height sensor (2), headlight
leveling control module (3), headlight leveling actuator (4) and headlight leveling warning light (5).
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44
I5JB0A920001-01
4
3
5
1
2
I6RW0C920002-01

Downloaded from www.Manualslib.com manuals search engine Lighting Systems: 9B-4
Headlight leveling actuator
Headlight leveling actuator is (1) located in the headlight housing (2). It moves the reflector (3) in the headlight housing
according to the drive signal from the headlight leveling control module so as to adjust the optical axis of the headlight
to the angle calculated by the headlight leveling control module.
Auto-On Headlight System Description (If Equipped)S6RW0D9201003
The auto-on headlight is controlled by auto-on headlight controller (1) and works as follows.Under such conditions as
the ignition switch turned ON and the lighting switch (2) turned to the “AUTO” position, when illuminance to the auto-on
headlight sensor (3) becomes lower than the specified value, the headlights and clearance lights are turned ON by
auto-on headlight controller. On the other hand, when illuminance to the auto-on headlight sensor becomes higher
than the specified value under the same conditions, the headlights and clearance lights are turned OFF by auto-on
headlight controller.Voltage supplied to height sensor is lower
than 4.6VStops headlight leveling actuator operation. ON
Signal voltage from height sensor is higher
than 4.75V or lower than 0.25VStops headlight leveling actuator operation. ON
Abnormality in headlight leveling control
module is detectedResets microcomputer in headlight leveling
control module.ON
Correction value calculated by headlight
leveling control module exceeds operation
range of headlight leveling actuatorDrives headlight leveling actuator within its
operation range.OFF Detecting condition Fail-safe operation Warning light
1
3
2
I6RW0C920005-01
1 3
2
1
I6RW0C920006-01

Downloaded from www.Manualslib.com manuals search engine Lighting Systems: 9B-8
Headlight Leveling Warning Light CheckS6RW0D9204015
1) Turn ignition switch to ON position.
2) Check that headlight leveling warning light (1) lights for about 2 seconds and then goes OFF. If the headlight
leveling warning light lights up again 10 seconds after it turned off, go to “Headlight Auto Leveling System
Symptom Diagnosis (If Equipped)”. If headlight leveling warning light flashes, go to “Initialization of Headlight Auto
Leveling System”.
Headlight Symptom Diagnosis (Discharge Headlight Model)S6RW0D9204016
1
I6RW0C920009-01
Condition Possible cause Correction / Reference Item
Only one low beam does
not light upCircuit fuse blownReplace fuse and check for short circuit.
Headlight low beam relay faultyCheck headlight relay referring to “Tail Light
Relay, Headlight Relay, Front Fog Light Relay
Inspection (If Equipped)”.
Bulb faultyReplace bulb.
Igniter faultyReplace igniter.
Ballast faultyReplace ballast.
Wiring or ground faultyRepair circuit.
Low beam does not light
upCircuit fuses blownReplace fuses and check for short circuit.
Headlight low beam relay faultyCheck headlight relay referring to “Tail Light
Relay, Headlight Relay, Front Fog Light Relay
Inspection (If Equipped)”.
Lighting or dimmer switch faultyCheck lighting and dimmer switch referring to
“Headlight Switch (in Lighting Switch)
Inspection”.
Bulbs faultyReplace bulbs.
Igniters faultyReplace igniters.
Ballasts faultyReplace ballasts.
Wiring or ground faultyRepair circuit.
Only one high beam does
not light upCircuit fuse blownReplace fuse and check for short circuit.
Headlight high beam relay faultyCheck headlight relay referring to “Tail Light
Relay, Headlight Relay, Front Fog Light Relay
Inspection (If Equipped)”.
Bulb blownReplace bulb.
Wiring or ground faultyRepair circuit.
High beam does not light
upCircuit fuses blownReplace fuses and check for short circuit.
Headlight high beam relay faultyCheck headlight relay referring to “Tail Light
Relay, Headlight Relay, Front Fog Light Relay
Inspection (If Equipped)”.
Lighting or dimmer switch faultyCheck lighting and dimmer switch referring to
“Headlight Switch (in Lighting Switch)
Inspection”.
Bulbs blownReplace bulbs.
Wiring or ground faultyRepair circuit.