2006 SUZUKI SX4 sensor

Downloaded from www.Manualslib.com manuals search engine 9B-15 Lighting Systems:
Auto-On Headlight Operation Inspection (If
Equipped)
S6RW0D9204021
1) Turn ignition switch to ON position and then turn
lighting switch to “AUTO” position.
2) Check headlights for operation as follows. If
headlights do not turn ON or OFF, go to “Inspection
of Auto-On Headlight Controller and Its Circuit (If
Equipped)”.
a) Cover auto-on headlight sensor by hand and
check that headlights light up then.
b) Light over auto-on headlight sensor vertically
with on incandescent lamp of approx, 100 W
apart from about 100 mm (3.94 in.) (1) and check
that headlights go off then.
Inspection of Auto-On Headlight Controller and Its Circuit (If Equipped)S6RW0D9204022
1) Confirm that lighting switch is in good condition referring to “Headlight Switch (in Lighting Switch) Inspection”.
2) Remove steering column hole cover.
3) Remove auto-on headlight controller (1) from steering support member.
4) Connect connector to auto-on headlight control module.
5) Check that the voltage between the following terminals and vehicle body ground are specifications under each
condition.
If measuring voltage is not within specification, check applicable circuit for open or short. If circuits are normal,
replace auto-on headlight controller.
If measuring voltage is within specification, auto-on headlight controller and its circuits are good condition.
[A]: Fig. for Step a) [B]: Fig. for Step b)
[A] [B]
1
I6RW0C920010-02
1
4321
8765
V
[A]
I6RW0C920011-01
[A]: Auto-on headlight controller connector viewed from harness side
Terminal Circuit Specification Condition
1 Tail light control signal0 VLighting switch at “AUTO”
position, tail / position light at
ON.
10 – 14 VIgnition switch is at ON
position, lighting switch at
“OFF” position.
2 Headlight control signal0 VLighting switch at “AUTO”
position, headlight at ON.
10 – 14 VIgnition switch is at ON
position, lighting switch at
“OFF” position.
3Power supply for auto-on
headlight sensorAbout 5 VIgnition switch is at OFF
position.

Downloaded from www.Manualslib.com manuals search engine Lighting Systems: 9B-16
Inspection of Headlight Leveling Control Module and Its Circuit (Headlight Auto Leveling System)S6RW0D9204023
Headlight auto leveling control module and its circuits can be checked at headlight auto leveling control module wiring
couplers by measuring voltage and pulse signal.
CAUTION!
Headlight auto leveling control module cannot be checked by itself. It is strictly prohibited to connect
voltmeter or ohmmeter to headlight auto leveling control module with couplers disconnected from it.

Voltage Check
Check voltage between each terminal of headlight auto leveling control module and vehicle body ground under each
condition. If measured voltage is out of standard value, check circuit (including switch and sensor) of terminal where
voltage was measured.
NOTE
• As each terminal voltage is affected by the battery voltage, confirm that it is 11 V or more when
ignition switch is ON.
• Voltage with asterisk (*) cannot be measured by voltmeter because it is pulse signal. Check it with
oscilloscope if necessary.

4Auto-on headlight sensor
signal3 – 4.5 VLight the sensor lens with
incandescent lamp 100 W
Less than 1 VCover the sensor lens with
hand.
5Ground for auto-on headlight
controller0 V —
6Ground for auto-on headlight
sensor0 V —
7 Lighting switch signal0 VIgnition switch is at ON
position, lighting switch at
“AUTO” position.
1.0 – 5.0 VIgnition switch is at ON
position, lighting switch at other
than “AUTO” position.
8 Ignition switch signal 10 – 14 VIgnition switch is at ON
position. Terminal Circuit Specification Condition
V
10 11 12 13 16 17 18 19 2031 5 6 9
21 22 23 24
[A]
I6RW0C920012-01
[A]: Headlight leveling control module connector (viewed from harness side)

Downloaded from www.Manualslib.com manuals search engine 9B-17 Lighting Systems:
Terminal Circuit Specification Condition
1 Power source 10 – 14 VIgnition switch is at ON
position.
2———
3 Lighting switchLess than 1.5 VLighting switch is at “HEAD”
position.
10 – 14 VLighting switch is at OFF
position.
4———
5 Diagnosis switch terminal About 5 VIgnition switch is at ON
position.
6Headlight auto leveling
indicatorLess than 1.5 VFor about 3 seconds after
ignition switch is turned on (i.e.,
headlight auto leveling
indicator is lit up).
10 – 14 VMore than about 3 seconds
after ignition switch is turned
on (i.e., headlight auto leveling
indicator is not lit up).
7———
8———
9Ground for headlight auto
leveling control unit0 VIgnition switch is at ON
position.
10Power supply for right
headlight leveling actuator10 – 14 VIgnition switch is at ON
position.
11Power supply for left headlight
leveling actuator10 – 14 VIgnition switch is at ON
position.
12Power supply for rear height
sensorAbout 5 VIgnition switch is at ON
position.
13Power supply for front height
sensorAbout 5 VIgnition switch is at ON
position.
14———
15———
16 Vehicle speed signal Refer to “Reference waveform No.1: ”.
17Signal for right headlight
leveling actuatorLess than 1 VLighting switch is at OFF
position.
1.0 – 12.6 VFor 17 seconds after turning
lighting switch to ON position.
18Signal for left headlight leveling
actuatorLess than 1 VLighting switch is at OFF
position.
1.0 – 12.6 VFor 17 seconds after turning
lighting switch to ON position.
19Input signal for rear height
sensorAbout 2.5 VIgnition switch is at ON
position.
20Input signal for front height
sensorAbout 2.5 VIgnition switch is at ON
position.
21 Ground for rear height sensor 0 VIgnition switch is at ON
position.
22 Ground for front height sensor 0 VIgnition switch is at ON
position.
23Ground for right headlight
leveling actuator0 VIgnition switch is at ON
position.
24
Ground for left headlight
leveling actuator0 VIgnition switch is at ON
position.

Downloaded from www.Manualslib.com manuals search engine 9B-29 Lighting Systems:
Height Sensor Removal and Installation (If
Equipped)
S6RW0D9206027
Removal
CAUTION!
• Do not remove bracket (4) and link (3) from
height sensor (2). Removal will spoil its
original function. If faulty condition is
found, replace it with new one in a set.
• If height sensor was dropped from a height
of 30 cm (0.9 ft) or more, replace it with
new one.

1) Disconnect negative (–) cable at battery.
2) Disconnect height sensor connector (1) from height
sensor (2).
3) Remove front and rear height sensor (2) with its
bracket (4) from suspension frame (6) or rear floor
center cross member (7) and lower arm (5).Installation
For installation, reverse removal procedure noting the
following.
• Check that bracket and link of height sensor are not
deformed.
• Tighten height sensor bolts and nuts to specified
torque.
Tightening torque
Height sensor bolt (a): 5.5 N·m (0.6 kgf-m, 4.0 lb-ft)
Height sensor nut (b): 13 N·m (1.3 kgf-m, 9.5 lb-ft)
• Connect connector securely.
• After installation, initialize headlight auto leveling
system referring to “Initialization of Headlight Auto
Leveling System”.
[A]: Front [B]: Rear
12
7
[B] [A]
4
3
2
6
3
5
5
1
4
4
4
I6RW0C920022-01
[A]: Front [B]: Rear
[B] [A]
(b)
(a)
(a)
(a)
I6RW0C920023-01

Downloaded from www.Manualslib.com manuals search engine Lighting Systems: 9B-30
Height Sensor and Its Circuit Inspection (If
Equipped)
S6RW0D9206028
1) Remove front or rear height sensor from vehicle
referring to “Height Sensor Removal and Installation
(If Equipped)”.
2) Connect connector to height sensor.
3) Vary position of height sensor link (1) and measure
voltage between terminals of headlight leveling
control module (4) as described below.
• For front height sensor
Between “G14-20” and “G14-22” terminals of
headlight leveling control module.
• For rear height sensor
Between “G14-19” and “G14-21” terminals of
headlight leveling control module.
If check result is not as specified, perform
inspections of power supply, ground and signal
circuits of front or rear height sensor which is
described under “Inspection of Headlight Leveling
Control Module and Its Circuit (Headlight Auto
Leveling System)”. If circuits are OK, replace
height sensor.
Height sensor output voltage
Full bound position (2): about 0.5 V
Full rebound position (3): about 4.5 V
Headlight Leveling Control Module Removal
and Installation (If Equipped)
S6RW0D9206029
Removal
1) Disconnect negative (–) cable at battery.
2) Remove glove box.
3) Disconnect connector (1) from headlight leveling
control module (2).
4) Remove headlight leveling control module with its
bracket from steering support member (3).
Installation
For installation, reverse removal procedure noting the
following.
• Connect connector securely.
• After replacing headlight leveling control module with
new one, initialize headlight auto leveling system
referring to “Initialization of Headlight Auto Leveling
System”.
Initialization of Headlight Auto Leveling SystemS6RW0D9206030
Initialization of the headlight auto leveling system is to
make the headlight leveling control module learn signals
which are fed from the height sensors when the vehicle
is at the standard height. Standard height means the
height of the vehicle with a driver but without load in it.
Initialization of the headlight auto leveling system is
required when any of the following works has been
performed.
• Replacement of headlight leveling control module
• Removal of front and/or rear height sensor link from
lower arm
• Removal of front and/or rear height sensor from
suspension frame
• Replacement of front and/or rear height sensor
[A]: Front [B]: Rear
[A] [B]
4
G14
10 11 12 13 16 17 18 19 2031 5 6 9
21 22 23 24
V
2
3 1
2
3
1
I6RW0C920024-01
23 1
I6RW0C920025-01

Downloaded from www.Manualslib.com manuals search engine 9B-31 Lighting Systems:
Without initialization of the headlight auto leveling
system, it is not possible to obtain its proper function.
Also, if the headlight auto leveling system is not
initialized after replacing the headlight leveling control
module, the headlight leveling warning light in the
combination meter flashes.
1) Observe the following instructions.
• Park vehicle on level ground.
• Adjust air pressure of all tires to the specified
value respectively.
• Bounce vehicle body up and down by hand to
stabilize suspension.
2) Turn ignition switch to ON position.
3) Perform “Headlight Leveling Warning Light Check”.
4) Connect service wire (2) to terminals of diagnosis
connector (1).
5) Perform Steps a) through b) described blow within
20 seconds after Step 4).
a) Turn lighting switch (3) to “HEAD” position and
then turn lighting switch to OFF position.
b) Repeat Step a) 2 times.
6) Confirm that headlight leveling warning light flashes
3 times and turns off, which indicates that system
initialization was completed properly. If it does not
turn off after flashing 3 times, it means initialization
was not successful. In such case, turn off ignition
switch and perform Steps 1) to 6) again.Auto-On Headlight Sensor Inspection (If
Equipped)
S6RW0D9206031
1) Disconnect negative (–) cable at battery.
2) Remove auto-on headlight sensor (1) located on the
passenger side of the dashboard (2). Be careful not
to damage the sensor (1) and dashboard by using
rag (3).
3) Measure voltage between white wire terminal and
black wire terminal at the following condition.
If measured voltage is out of specification, replace
sensor.
Auto-on headlight sensor voltage specifications
Cover the sensor lens with hand: 0.4 V
Light the sensor lens with incandescent lamp
100 W: 3 – 4.5 V3
1
2
I6RW0C920021-01
1
I6RW0C920009-01
2
1
3I5JB0A920038-01
I5JB0A920039-01

Downloaded from www.Manualslib.com manuals search engine 9B-33 Lighting Systems:
Specifications
Tightening Torque SpecificationsS6RW0D9207001
Reference:
For the tightening torque of fastener not specified in this section, refer to “Fasteners Information in Section 0A”. Fastening partTightening torque
Note
N⋅mkgf-mlb-ft
Height sensor bolt 5.5 0.6 4.0)
Height sensor nut 13 1.3 9.5)

Downloaded from www.Manualslib.com manuals search engine 9C-2 Instrumentation / Driver Info. / Horn:
Combination Meter Reception Data
ECM BCM
Keyless
Start
Control
Module
(if equipped)
Combination
Meter4WD
Control
Module
(if equipped)TCM
(A/T
model)
Engine speed signal
Immobilizer indicator light control signal
Vehicle speed signal
Engine coolant temperature signal
Fuel level signal
MIL control signal
Transmission range sensor signal
Transmission warning light signal
Diagnostic trouble code (DTC)
Brake fluid level switch signal
(brake warning light control signal)
Driver side seat belt buckle switch signal
(seat belt reminder light control signal)
Charging system warning light signal
(charge warning light control signal)
Engine oil pressure switch signal
(oil pressure warning light control signal)
Parking brake switch signal
(brake warning light control signal)
Illumination ON signal
Door switch signal
(open door warning light control signal)
ABS indication signal
EBD indication signal
(brake warning light control signal)
4WD mode indicator control signal
Key indicator light control signal
ABS
Control
Module
Odometer signal
DATA
Recive
I6RW0D930001-01