2006 SUZUKI SX4 check engine

Downloaded from www.Manualslib.com manuals search engine 9A-133 Wiring Systems:
Q102
Q10312
212220
19
BLK/YELBRN/YELYEL/GRNYEL/BLU
BLK/YELBRN/YELYEL/GRNYEL/BLU
12
L395
Q132
1 2
2
454446
47
sensorsensor
LT GRNWHT/GRNWHT/REDLT GRN/BLK
1
2
ORN
YB
E388
L3721
PNK/BLK
E40
Forward sensor
Check terminal
1 2
250
51
ORN
PNK/BLKYEL/BLK
YEL/BLK
"C-3"
J/B
G272
L31313
4
Q105Q10412
A/B
SDM
131412
11
BRN/WHTBRN
12
GRY/REDGRY
BLUBLKBLUBLK
1212L384
Q133L385
Q134
L28512
910
BLU/ORNBLU/YEL
L04
L28312
87
GRN/ORNGRN/YEL
J/B side connector (BCM)
Except M16A engine M/T
M16A engine M/T
RHD
LHD ABCDE
1
3DE4
2DE3
1DE2
4DE
L36
L35D
EE
EL35
L36D
E
sensorsensor
DD
I6RW0D910923-01

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.

Downloaded from www.Manualslib.com manuals search engine 9B-9 Lighting Systems:
Headlight Symptom diagnosis (Other than Discharge Headlight Model)S6RW0D9204017
Auto-On Headlight System Symptom Diagnosis (If Equipped)S6RW0D9204018
Condition Possible cause Correction / Reference Item
Only one low beam does
not light upCircuit fuse blownReplace fuse and check for short circuit.
Bulb blownReplace bulb.
Headlight low beam relay faulty (if
equipped)Check headlight relay referring to “Tail Light
Relay, Headlight Relay, Front Fog Light Relay
Inspection (If Equipped)”.
Wiring or ground faultyRepair circuit.
Low beam does not light
upCircuit fuse blownReplace fuses and check for short circuit.
Headlight low beam relay faulty (if
equipped)Check 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.
DRL controller faulty (if equipped)Check system referring to “Inspection of DRL
Controller and Its Circuits (If Equipped)”.
Only one high beam does
not light upCircuit fuse blownReplace fuse and check for short circuit.
Bulb blownReplace bulb.
Headlight high beam relay faulty (if
equipped)Check headlight relay referring to “Tail Light
Relay, Headlight Relay, Front Fog Light Relay
Inspection (If Equipped)”.
Wiring or ground faultyRepair circuit.
High beam does not light
upCircuit fuse blownReplace fuses and check for short circuit.
Headlight high beam relay faulty (if
equipped)Check 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.
Condition Possible cause Correction / Reference Item
Headlights are not turned
ON or OFF automatically
even after darkened or
lightenedCircuit fuse blownReplace fuse and check for short circuit.
Lighting or dimmer switch faultyCheck lighting and dimmer switch referring to
“Headlight Switch (in Lighting Switch)
Inspection”.
Auto-on headlight sensor faultyCheck auto-on headlight sensor referring to
“Auto-On Headlight Sensor Inspection (If
Equipped)”.
Wiring or ground faultyRepair circuit.
Auto-on headlight controller faultyCheck auto-on headlight controller for function
referring to “Inspection of Auto-On Headlight
Controller and Its Circuit (If Equipped)”.

Downloaded from www.Manualslib.com manuals search engine Lighting Systems: 9B-10
DRL System Symptom Diagnosis (If Equipped)S6RW0D9204002
Headlight Auto Leveling System Symptom Diagnosis (If Equipped)S6RW0D9204019
Headlight Manual Leveling System Symptom Diagnosis (If Equipped)S6RW0D9204003
Condition Possible cause Correction / Reference Item
Headlight does not light
when lighting switch is in
OFF position and engine
is runningLighting switch faultyCheck lighting switch referring to “Headlight
Switch (in Lighting Switch) Inspection”.
Oil pressure switch faultyCheck oil pressure switch referring to “Oil
Pressure Switch Inspection in Section 9C”.
DRL controller faultyCheck lighting switch referring to “Inspection of
DRL Controller and Its Circuits (If Equipped)”.
Wiring or grounding faultyRepair circuit.
Headlight lights even if
engine stop and lighting
switch is OFF positionLighting switch faultyCheck system referring to “Headlight Switch (in
Lighting Switch) Inspection”.
Oil pressure switch faultyCheck oil pressure switch referring to “Oil
Pressure Switch Inspection in Section 9C”.
DRL controller faultyCheck system referring to “Inspection of DRL
Controller and Its Circuits (If Equipped)”.
Wiring or grounding faultyRepair circuit.
Condition Possible cause Correction / Reference Item
Headlight leveling
warning light comes on
steadyHeight sensor faultyCheck height sensor referring to “Height
Sensor and Its Circuit Inspection (If
Equipped)”.
Wiring or ground faultyRepair circuit.
Headlight leveling control module faultyCheck headlight leveling control module for
function referring to “Inspection of Headlight
Leveling Control Module and Its Circuit
(Headlight Auto Leveling System)”.
Optical axes of both
headlights do not changeCircuit fuse blownReplace fuse and check for short circuit.
Supply voltage too low or too highCheck charging system referring to “Generator
Test (Undercharged Battery Check) in Section
1J” or “Generator Test (Overcharged Battery
Check) in Section 1J”.
Wiring or ground faultyRepair circuit.
Headlight leveling control module faultyCheck headlight leveling control module for
function referring to “Inspection of Headlight
Leveling Control Module and Its Circuit
(Headlight Auto Leveling System)”.
Optical axis of only one
headlight does not
changeHeadlight levering actuator faultyCheck actuator referring to “Headlight Leveling
Actuator Inspection (If Equipped)”.
Headlight housing deformedReplace headlight housing.
Wiring or ground faultyRepair circuit.
Condition Possible cause Correction / Reference Item
Optical axes of both
headlights do not changeCircuit fuse blownReplace fuse and check for short circuit.
Headlight leveling switch faultyCheck headlight leveling switch referring to
“Headlight Manual Levering Switch Inspection
(If Equipped)”.
Supply voltage too lowCheck charging system referring to “Generator
Test (Undercharged Battery Check) in Section
1J”.
Wiring or grounding faultyRepair circuit.
Optical axis of only one
headlight does not
changeCircuit fuse blownReplace fuse and check for short circuit.
Headlight leveling actuator faultyCheck actuator referring to “Headlight Leveling
Actuator Inspection (If Equipped)”.
Headlight housing deformedReplace headlight housing.
Wiring or grounding faultyRepair circuit.

Downloaded from www.Manualslib.com manuals search engine 9B-11 Lighting Systems:
Turn Signal and Hazard Warning Light Symptom DiagnosisS6RW0D9204004
Clearance, Tail and License Plate Light Symptom DiagnosisS6RW0D9204005
Condition Possible cause Correction / Reference Item
Flash rate high or one
side only flashesBulb blown on “flash rate high”-sideReplace bulb.
Incorrect bulbReplace bulb.
Turn signal / hazard warning relay faultyCheck turn signal / hazard warning relay
referring to “Turn Signal and Hazard Warning
Relay Inspection”.
Open circuit or high resistance existing
either; between turn signal switch and
non lighting bulb, or between hazard
warning switch and non lighting bulbRepair circuit.
Wiring or grounding faultyRepair circuit.
No flashing
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.

Circuit fuse(s) blownReplace fuse(s) and check for short circuit.
Turn signal / hazard warning relay faultyCheck turn signal / hazard warning relay
referring to “Turn Signal and Hazard Warning
Relay Inspection”.
Turn signal light switch faultyCheck turn signal light switch referring to “Turn
Signal Light Switch (in Lighting Switch)
Inspection”.
Hazard warning switch faultyCheck hazard warning switch referring to
“Hazard Warning Switch Inspection”.
Open circuit or high resistance existing
between battery and switchRepair circuit.
Wiring or grounding faultyRepair circuit.
BCM faultyReplace after making sure that none of above
parts is faulty.
Flash rate lowSupply voltage lowCheck charging system referring to “Generator
Test (Undercharged Battery Check) in Section
1J”.
Turn signal / hazard warning relay faultyCheck turn signal / hazard warning relay
referring to “Turn Signal and Hazard Warning
Relay Inspection”.
Condition Possible cause Correction / Reference Item
All lights do not light upCircuit fuse blownReplace fuse and check for short circuit.
Tail light relay faulty (if equipped)Check tail light relay referring to “Tail Light
Relay, Headlight Relay, Front Fog Light Relay
Inspection (If Equipped)”.
Lighting and dimmer switch faultyCheck lighting and dimmer switch referring to
“Headlight Switch (in Lighting Switch)
Inspection”.
Wiring or grounding faultyRepair circuit.
Some lights do not light
upBulb(s) blownReplace bulb(s).
Wiring or grounding faultyRepair circuit.

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 Lighting Systems: 9B-14
6) Check that the voltage between the following terminals and vehicle body ground are specifications under each
condition.
7) Check that voltage between the following terminals and body ground are as specification under each condition.
If measuring voltage is not within specification, check applicable circuit for open or short. If circuits are normal,
replace DRL controller.
If measuring voltage is within specification, DRL controller and its circuits are good condition.
54321
10987 6
V
1
1[A]
I5RW0A920003-01
[A]: DRL controller connector viewed from harness side
Terminal Circuit Specification Condition
1 To clearance lamp0 – 1 V Engine is at stop and lighting switch is at OFF position.
10 – 14 V Engine is at running and lighting switch is at OFF position.
2 To ignition switch0 – 1 V Ignition switch is at OFF position.
10 – 14 V Ignition switch is at ON position.
3To lighting switch
(CLEARANCE)0 – 1 V Lighting switch is at OFF position.
10 – 14 VLighting switch is at CLEARANCE position or HEAD
position.
4 Ground 0 – 1 V —
5 Ground 0 – 1 V —
6 To head lamp0 – 1 V• Lighting switch is at HEAD position and dimmer switch
is at LOW position.
• Engine is running and lighting switch is at OFF position.
10 – 14 VLighting switch is at HEAD position and dimmer switch is
at HI position.
7 To oil pressure switch8 – 10 VEngine is at running (Oil pressure warning lamp is turned
OFF).
0 – 1 V Engine is at stop.
8 Main fuse 10 – 14 V —
9 To lighting switch (HEAD)6 – 8 V• Engine is at running and lighting switch is at OFF
position.
• Engine is running and lighting switch is CLEARANCE
position.
0 – 1 V• Engine is at running and dimmer switch is at HEAD
position.
• Engine is at stop.
10 To lighting switch (LOW)0 – 1 V• Engine is at running and lighting switch is at OFF
position.
• Lighting switch is at HEAD position and dimmer switch
is at LOW position.
10 – 14 VLighting switch is at HEAD position and dimmer switch is
at HI position.