2006 SUZUKI SX4 rear

Downloaded from www.Manualslib.com manuals search engine 9A-141 Wiring Systems:
G-4 Navigation System Circuit DiagramS6RW0D910E059
G2715
5
4
11
2
12
1 5
156
16
"D-4"RY
WHT/RED
WHT/RED
G248
G2481
G307
J/B
15ADOME
37
J/C
BLU/WHT
BLU/WHTRED/YEL
15AACC2
24
Rear (R)
J/C
Rear (L)
GRY/REDGRYLT GRN/BLKLT GRN
GRY/REDGRYLT GRN/BLKLT GRN
GRY/REDGRYLT GRN/BLKLT GRN
1
Navigation
RED/YEL
92
J146
C
CG308
J/C
B
BG306
J/C
D
D
PPLPPL
18G243183
L381
J2175
4L382
J218
J145
G341
L374
G343
L376
1
2
Rear tweeter (R)
GRY/REDGRY
J1511
2
Rear tweeter (L)
LT GRNLT GRN/BLK
J152
A
B
G343
L376
G341
L374A
B
9
6AB8
5AB6
9AB5
8AB
M/T
RED/BLU
RED/BLU
Parking brake
switchBack-up
light switch
"C-3"
RB
"A-8"P
BCM
RED
RED
"D-8"R
E381
G33317
G343
L3763
A/T
Transaxle
range sensor
"D-8"
R
RHD
LHD AB
I6RW0C910A10-02

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).
123
44
I5JB0A920001-01
4
3
5
1
2
I6RW0C920002-01

Downloaded from www.Manualslib.com manuals search engine 9B-3 Lighting Systems:
With more passenger(s) or luggage in the vehicle, the vehicle position differs from that in such vehicle state with one
person and no load in the vehicle and angle of the headlight optical axis varies accordingly. This system automatically
adjusts the varied angle to maintain the optical axis properly.
Front and rear height sensors
Front height sensor (1) is installed to the front suspension frame (2) respectively and connected to the lower arm (4)
with the link (3). Also rear height sensor is installed to the rear floor center cross member (5) respectively and
connected to the rear axle (6) with the link (3). Each height sensor converts vertical movement of the lower arm into
the resistance value and outputs the detected change in the vehicle position as a voltage signal to the headlight
leveling control module.
Headlight leveling control module
Headlight leveling control module is installed at the inside of the glove box. It uses the headlight ON signal from the
lighting switch, vehicle speed signal from BCM and vehicle position signal from height sensors to calculate the angle
of the headlight optical axis to be corrected. Then it adjusts the optical axis angle of headlight based on the calculated
angle value by driving the headlight leveling actuator so that proper headlight aiming is obtained. Also, when any
abnormality is detected in the system, the headlight leveling control module makes the headlight leveling warning light
in the combination meter light up to warn the driver of an abnormality in the system.
Fail-safe function of headlight leveling control module
Headlight leveling control module has a fail-safe function which operates as follows.
[A]
[A]
[B]
I6RW0C920003-01
[A]: Optical axis of headlight in standard position
[B]: Corrected optical axis of headlight
1
5
[A] [B]
6
3
1
2
3
4I6RW0C920004-01
[A]: Front [B]: Rear
Detecting condition Fail-safe operation Warning light
Power voltage supplied to headlight
leveling control module is higher than
18.5VStops headlight leveling actuator operation. OFF
Power voltage supplied to headlight
leveling control module is lower than 9VStops headlight leveling actuator operation. OFF
Vehicle speed is 180km/h or higher Stops headlight leveling actuator operation. OFF

Downloaded from www.Manualslib.com manuals search engine 9B-5 Lighting Systems:
Schematic and Routing Diagram
Headlight Auto Leveling System Wiring Circuit DiagramS6RW0D9202001
G14-12G14-19G14-21
G14-10
G14-23
+B
5V
5V
GRN/YEL
GRY/RED
BLK
G14-112V
BRNLT BLUGRY
RED/BLK
3
G14-13G14-20G14-22
5V
PNKBLUYEL/GRN2
45
9
10 11 1
5V
5V
12V
G14-16
G14-3
PPL
GRN/ORN
5V
G14-5YEL
G14-17GRN
G14-11
G14-24
ORN
WHT6 12VG14-18LT GRN
7
8
G14-6
G14-9
RED/WHT
G14
10 11 12 13 16 17 18 19 205 6 9
21 22 23 24
[A]
I6RW0C920007-01
[A]: Headlight leveling control module connector
(viewed from harness side)4. BCM 8. Headlight leveling warning light
1. Headlight leveling control module 5. Right headlight leveling actuator 9. Ignition switch
2. Front height sensor 6. Left headlight leveling actuator 10. Lighting switch
3. Rear height sensor 7. Combination meter 11. Diagnosis connector

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Interior Light System LocationS6RW0D9203002
Diagnostic Information and Procedures
Self-Diagnosis Function for Headlight Auto Leveling SystemS6RW0D9204014
The headlight leveling control module has self-diagnosis function to monitor the system components and circuits while
the headlight auto leveling system is at work. When the headlight leveling control module detects an abnormality in the
system, the headlight leveling warning light in the combination meter turns ON. However, the headlight leveling control
module does not have a function to indicate location of such abnormality.
[A]: Discharge headlight model 9. Front fog light (if equipped) 21. Turn signal / hazard warning relay
[B]: Other than discharge headlight model 10. Rear combination light 22. Tail light relay (junction block without BCM
type)
[C]: Junction block without BCM type 11. Rear fog light (if equipped) 23. BCM (junction block without BCM type)
[D]: Junction block viewed from relay side 12. Rear height sensor (if equipped) 24. Auto-on headlight controller (if equipped)
1. Headlight bulb 13. Front height sensor (if equipped) 25. Front fog light switch (if equipped)
2. Clearance light 14. Front fog light relay (if equipped) 26. Headlight manual leveling switch (if
equipped)
3. Turn signal light 15. Headlight high beam relay (left side) 27. Illumination cancel switch (if equipped)
4. Headlight unit 16. Headlight high beam relay (right side) 28. Lighting switch
5. Discharge headlight bulb 17. Headlight low beam relay (left side) 29. Rear fog light switch (if equipped)
6. Igniter 18. Headlight low beam relay (right side) 30. Hazard warning switch
7. Ballast 19. Tail light relay 31. DRL controller or headlight leveling control
module (if equipped)
8. Auto-on headlight sensor (if equipped) 20. BCM (junction block with BCM type)
: BCM cannot be removed from junction
block.
3 4
5
2
1
I7RW01920003-01
1. Dome light 3. Door switches (both sides) 5. Spot light
2. Luggage compartment light (if equipped) 4. Rear end door switch (included in lock assembly)

Downloaded from www.Manualslib.com manuals search engine Lighting Systems: 9B-12
Back-Up Light Symptom DiagnosisS6RW0D9204020
Brake Light Symptom DiagnosisS6RW0D9204007
Front Fog Light Symptom Diagnosis (If Equipped)S6RW0D9204008
Rear Fog Light Symptom Diagnosis (If Equipped)S6RW0D9204009
Condition Possible cause Correction / Reference Item
Back-up lights do not
light upBulb(s) blownReplace bulb(s).
Circuit fuse blownReplace fuse and check for short circuit.
Back-up light switch (M/T model) or
transmission range sensor (A/T model)
faultyCheck back-up light switch or transmission
range sensor referring to “Back Up Light
Switch Inspection in Section 5B” or
“Transmission Range Sensor Inspection and
Adjustment in Section 5A”.
Wiring or grounding faultyRepair circuit.
Back-up lights stay onBack-up light switch (M/T model) or
transmission range sensor (A/T model)
faultyCheck back-up light switch or transmission
range sensor referring to “Back Up Light
Switch Inspection in Section 5B” or
“Transmission Range Sensor Inspection and
Adjustment in Section 5A”.
Condition Possible cause Correction / Reference Item
Brake light do not light upBulb(s) blownReplace bulb(s).
Circuit fuse blownReplace fuse and check for short circuit.
Brake light switch faultyCheck brake light switch referring to “Brake
Light Switch Inspection”.
Wiring or grounding faultyRepair circuit.
Brake light stay onBrake light switch faultyCheck or adjust brake light switch referring to
“Brake Light Switch Inspection” or “Brake Light
Switch Adjustment in Section 4A”.
Condition Possible cause Correction / Reference Item
Only one light does not
lightBulb blownReplace bulb.
Wiring or grounding faultyRepair circuit.
Front fog lights do not
lightCircuit fuse blownReplace fuse and check for short circuit.
Bulb blownReplace bulb.
Front fog light switch faultyCheck front fog light switch referring to “Front
Fog Light Switch Inspection (If Equipped)”.
Front fog light relay faultyCheck front fog light relay referring to “Tail
Light Relay, Headlight Relay, Front Fog Light
Relay Inspection (If Equipped)”.
Wiring or grounding faultyRepair circuit.
Condition Possible cause Correction / Reference Item
Rear fog light do not lightCircuit fuse blownReplace fuse and check for short circuit.
Bulb blownReplace bulb.
Rear fog light switch faultyCheck rear fog light switch referring to “Rear
Fog Light Switch Inspection (If Equipped)”.
Wiring or grounding faultyRepair circuit.

Downloaded from www.Manualslib.com manuals search engine 9B-13 Lighting Systems:
Illumination Cancel System Symptom Diagnosis (If Equipped)S6RW0D9204010
Interior Light Symptom DiagnosisS6RW0D9204011
NOTE
• Use of SUZUKI scan tool makes it easy to check whether a faulty condition is on the input side or
output side of BCM. For checking procedure, refer to “Diagnosis Using Output Test Function of
SUZUKI Scan Tool” under “Scan Tool Data in Section 10B”.
• Check each part in the order from the top of the following list.

DRL Operation Inspection (If Equipped)S6RW0D9204012
1) Confirm that lighting switch is in OFF position.
2) Confirm that dimmer and passing switch is in low beam position.
3) Check DRL for operation as follows.
a) Turn ignition switch to ON position and check headlights remain OFF.
b) Start engine and run it at idle speed. Check headlights turn ON at low beam.
c) Switch dimmer and passing switch to high beam position and check headlights remain turning ON at low
beam.
4) If check result is not as satisfied, go to “Inspection of DRL Controller and Its Circuits (If Equipped)”.
Inspection of DRL Controller and Its Circuits (If Equipped)S6RW0D9204013
1) Confirm that lighting switch is in good condition referring to “Headlight Switch (in Lighting Switch) Inspection”.
2) Confirm that oil pressure switch is in good condition referring to “Oil Pressure Switch Inspection in Section 9C”.
3) Remove glove box.
4) Remove DRL controller (1) from steering support member.
5) Connect connector to DRL controller.Condition Possible cause Correction / Reference Item
Illumination cancel do not
normal operationCircuit fuse blownReplace fuse and check for short circuit.
Illumination cancel switch faultyCheck illumination cancel switch referring to
“Illumination Cancel Switch Inspection (If
Equipped)”.
Combination meter and/or information
display faultyReplace combination meter and/or information
display.
Wiring or grounding faultyRepair circuit.
Condition Possible cause Correction / Reference Item
Dome light does not light
upBulb blownReplace bulb.
Circuit fuse blownReplace fuse and check for short circuit.
Dome light switch faultyCheck dome light switch.
Door switch faultyCheck door switch referring to “Door Switch
(Front / Rear Door) Inspection in Section 9C”.
Wiring or grounding faultyRepair circuit.
BCM faultyReplace after making sure that none of above
parts is faulty.
Luggage compartment
light does not light up (if
equipped)Bulb blownReplace bulb.
Rear end door switch faultyCheck switch referring to “Rear End Door
Switch Inspection in Section 9C”.
Wiring or grounding faultyRepair circuit.

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.