2006 SUZUKI SX4 wiring diagram

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-65
DTC B1513: Temperature Control Actuator (Motor) and/or Its Circuit MalfunctionS6RW0D7224015
Wiring Diagram
DTC Detecting Condition and Trouble Area5Position sensor of temperature control actuator power
supply voltage check
1) Turn ignition switch to OFF position.
2) Disconnect connector from temperature control actuator.
3) Turn ignition switch to ON position.
4) Measure voltage between.
• Position sensor power supply terminal and position
sensor ground terminal of air flow control actuator
connector
• Position sensor signal terminal and position sensor
ground terminal of air flow control actuator connector
Is voltage 4.5 – 5.5 V?Check temperature
control actuator and its
circuit.Substitute a known-
good HVAC control
module and recheck. Step Action Yes No
G20
1 2 3 4 5 6 7 8 9 10 11 12 13 14
15 16 17 18 19 20 21 24 23 22 25 26 27 28 29 30
GRY/BLUGRY/RED
5V5V
12V
ORN
WHT
YEL
G20-12
G20-27
G20-24
G20-1G20-2
2
[D]
3
41
I6RW0C722006-02
[D]: Temperature control actuator motor drive circuit 2. Temperature control actuator 4. To other sensors
1. HVAC control module 3. To air flow control actuator
DTC Detecting Condition Trouble Area
Motor of temperature control actuator does not move longer than specified
time.• Temperature control actuator circuit
• Temperature control linkage
• Temperature control actuator
• HVAC unit
• HVAC control module

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-67
DTC B1514: Air Flow Control Actuator (Motor) and/or Its Circuit MalfunctionS6RW0D7224016
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
G20
1 2 3 4 5 6 7 8 9 10 11 12 13 14
15 16 17 18 19 20 21 24 23 22 25 26 27 28 29 30
BRN/YELBRN/WHT
5V5V
12V
ORN
WHTG20-12
G20-28
G20-24
G20-15G20-16
WHT/BLU 2
3
41
[D]
I6RW0C722007-01
[D]: Air flow actuator motor drive circuit 2. Air flow control actuator 4. To other sensors
1. HVAC control module 3. To temperature control actuator
DTC Detecting Condition Trouble Area
Motor of air flow control actuator does not move longer than specified time. • Air flow control actuator circuit
• Air flow control linkage
• Air flow control actuator
• HVAC unit
• HVAC control module
Step Action Yes No
1Was “Air Conditioning System Check” performed?Go to Step 2. Go to “Air Conditioning
System Check”.
2DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch to ON position and check DTC.
Is DTC B1512 detected together?Go to “DTC B1512: Air
flow Control Actuator
(Position Sensor) and/or
Its Circuit Malfunction”.Go to Step 3.
3Visual Check
Check if there is any obstruction in operating range of
actuator linkage and if actuator linkage operates smoothly.
Is it in good condition?Go to Step 4. Obstruction in operating
range of actuator
linkage, actuator linkage
faulty and/or internal
fault of HVAC unit.
4Wire harness check
1) Turn ignition switch to OFF position.
2) Disconnect connectors from air flow control actuator and
HVAC control module.
3) Check for proper connection to actuator motor drive
circuit terminals of air flow control actuator and HVAC
control module connectors.
4) If OK, check that actuator motor drive circuit of air flow
control actuator is as follows.
• Wiring harness resistance of each actuator motor
drive circuit is less than 3 Ω
• Insulation resistance of each actuator motor drive
circuit is infinity between air flow control actuator
connector and vehicle body ground
• Circuit voltage of each actuator motor drive circuit is 0
– 1 V with ignition switch turned ON
Are they in good condition?Go to Step 5. Actuator motor drive
circuit(s) is open, short
or high resistance.

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-69
DTC B1541: Back-Up Power Supply Circuit MalfunctionS6RW0D7224018
Wiring Diagram
DTC Detecting Condition and Trouble Area
NOTE
When checking DTC after connecting battery cable, be sure to turn ignition switch from OFF to ON and
from ON to OFF at least once, or DTC B1541 will be detected.

DTC Troubleshooting
12V5V
WHTG20-7 2
31G201 2 3 4 5 6 7 8 9 10 11 12 13 14
15 16 17 18 19 20 21 24 23 22 25 26 27 28 29 30WHT/RED [B]
I7RW01722011-01
[B]: Back-up power supply circuit 2. Main fuse
1. HVAC control module 3. Circuit fuse
DTC Detecting Condition Trouble Area
• Back-up power supply voltage is lower than specified value continuously.
• When connect battery with vehicle and then, turn ignition switch to ON
position for first time.• Battery voltage supply circuit
• HVAC control module
Step Action Yes No
1Was “Air Conditioning System Check” performed?Go to Step 2. Go to “Air Conditioning
System Check”.
2DTC check
1) Turn ignition switch to ON position for 20 sec. or more.
2) Ignition switch turned OFF and connect scan tool to
DLC.
3) Turn ON ignition switch and check DTC.
Is there DTC B1541?Go to Step 3. Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
3Battery voltage supply circuit check
1) Disconnect connector from HVAC control module with
ignition switch turned OFF.
2) Check for proper connection to back-up power supply
circuit terminal of HVAC control module connector.
3) If OK, measure voltage between back-up power supply
circuit terminal of HVAC control module connector and
vehicle body ground.
Is voltage 10 – 14 V?Substitute a known-
good HVAC control
module and recheck.Back-up power supply
circuit is open or
shorted to ground.

Downloaded from www.Manualslib.com manuals search engine 7B-70 Air Conditioning System: Automatic Type
DTC B1546: A/C Refrigerant Pressure MalfunctionS6RW0D7224019
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC B1551: Serial Communication Circuit MalfunctionS6RW0D7224020
Wiring DiagramDTC detecting condition Trouble area
• A/C refrigerant pressure sensor signal voltage is lower than specified value
even though outside air temperature is higher than specified value for
specified time continuously.
• Insufficient refrigerant in A/C system• Insufficient of refrigerant
• A/C refrigerant pressure sensor
• Outside air temperature sensor
• HVAC control module
Step Action Yes No
1Was “Air Conditioning System Check” performed?Go to Step 2. Go to “Air Conditioning
System Check”.
2DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch to ON position and check DTC in
BCM.
Is DTC B1141 or B1142 (BCM) detected?Go to applicable DTC
diag. flow.Go to Step 3.
3DTC check
Check DTC in ECM.
Is DTC P0532 or P0533 detected?Go to applicable DTC
diag. flow.Go to Step 4.
4A/C refrigerant pressure and outside air temperature
data check
1) Start engine and select “DATA LIST” mode on scan tool.
2) Check “Refrigerant Pressure” and “Outside Air Temp”
displayed on scan tool.
Are values of A/C refrigerant pressure sensor and outside air
temperature within specified ranges indicated in “Scan Tool
Data”?Substitute a known-
good HVAC control
module and recheck.Check the amount of
refrigerant and system
for leaks.
12V
G20
G20-13YEL
1 2 3 4 5 6 7 8 9 10 11 12 13 14
15 16 17 18 19 20 21 24 23 22 25 26 27 28 29 30
1
2 3
[S]WHT/REDWHTG20-7
12V5V
[B]4 4
I7RW01722012-02
[B]: Back-up power supply circuit 1. HVAC control module 3. Information display
[S]: Serial communication circuit 2. BCM 4. Circuit fuse

Downloaded from www.Manualslib.com manuals search engine Table of Contents 8- i
8
Section 8
CONTENTS
Restraint
Precautions ................................................. 8-1
Precautions............................................................. 8-1
Precautions on Restraint ....................................... 8-1
Seat Belts ................................................. 8A-1
Precautions........................................................... 8A-1
Precautions on Service and Diagnosis of Seat
Belt .................................................................... 8A-1
General Description ............................................. 8A-2
Seat Belt Construction ........................................ 8A-2
Diagnostic Information and Procedures ............ 8A-3
Repair and Inspection Required after
Accident ............................................................ 8A-3
Repair Instructions .............................................. 8A-4
Front Seat Belt Components ............................... 8A-4
Front Seat Belt Removal and Installation ............ 8A-5
Front Seat Belt Inspection................................... 8A-6
Rear Seat Belt Components ............................... 8A-7
Rear Seat Belt Removal and Installation ............ 8A-8
Rear Seat Belt Inspection ................................... 8A-8
Specifications....................................................... 8A-8
Tightening Torque Specifications ........................ 8A-8
Air Bag System ........................................ 8B-1
Precautions........................................................... 8B-1
Precautions on Service and Diagnosis of Air
Bag System....................................................... 8B-1
Precautions on Handling and Storage of Air
Bag System Components ................................. 8B-1
Precautions on Disposal of Air Bag and Seat
Belt Pretensioner .............................................. 8B-5
General Description ............................................. 8B-5
Air Bag System Construction .............................. 8B-5
Air Bag System Block Diagram ........................... 8B-6
Air Bag System Input / Output Table .................. 8B-7
Schematic and Routing Diagram ........................ 8B-8
Air Bag System Wiring Circuit Diagram .............. 8B-8
Component Location ......................................... 8B-11
Air Bag System Components, Wiring and
Connectors Location ....................................... 8B-11
Diagnostic Information and Procedures .......... 8B-12
Air Bag Diagnostic System Check .................... 8B-12
Air Bag Diagnostic System Check Flow ............ 8B-13
DTC Table ......................................................... 8B-14DTC Check........................................................ 8B-18
DTC Clearance ................................................. 8B-18
Scan Tool Data ................................................. 8B-18
“AIR BAG” Warning Light Comes ON Steady ... 8B-19
“AIR BAG” Warning Light Does Not Come ON .. 8B-22
Serial Data Link Circuit Check .......................... 8B-23
DTC B1013: SDM Internal Failure .................... 8B-25
DTC B1014: “AIR BAG” Warning Light Circuit .. 8B-26
DTC B1016: Power Supply Voltage too High.... 8B-26
DTC B1017: Power Supply Voltage too Low .... 8B-27
DTC B1021: Front Air Bag Deployment
Record............................................................. 8B-28
DTC B1024 / B1025: Side Air-Bag
Deployment Record ........................................ 8B-29
DTC B1026: Seat Belt Pretensioner
Activation Record ............................................ 8B-29
DTC B1027: Number of Deployment Times
Exceeded Limit................................................ 8B-30
DTC B1031: Driver Air Bag Circuit High
Resistance ...................................................... 8B-31
DTC B1032: Driver Air Bag Circuit Low
Resistance ...................................................... 8B-33
DTC B1033: Driver Air Bag Circuit Shorted to
Ground ............................................................ 8B-35
DTC B1034: Driver Air Bag Circuit Shorted to
Power Supply .................................................. 8B-37
DTC B1041: Passenger Air Bag Circuit High
Resistance ...................................................... 8B-40
DTC B1042: Passenger Air Bag Circuit Low
Resistance ...................................................... 8B-43
DTC B1043: Passenger Air Bag Circuit
Shorted to Ground........................................... 8B-45
DTC B1044: Passenger Air Bag Circuit
Shorted to Power Supply ................................ 8B-46
DTC B1051 / B1055: Seat Belt Pretensioner
Circuit High Resistance ................................... 8B-48
DTC B1052 / B1056: Seat Belt Pretensioner
Circuit Low Resistance.................................... 8B-51
DTC B1053 / B1057: Seat Belt Pretensioner
Shorted to Ground........................................... 8B-52
DTC B1054 / B1058: Seat Belt Pretensioner
Circuit Shorted to Power Supply ..................... 8B-54
DTC B1061 / B1065: Side-Air Bag Circuit
High Resistance .............................................. 8B-55

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-8
Schematic and Routing Diagram
Air Bag System Wiring Circuit DiagramS6RW0D8202001
BLK
YEL/GRN YEL/GRN
YEL/BLU YEL/BLU
WHT/RED
LT GRN/BLK
WHT/GRN
LT GRN
2223 15
29
21 19
20GRN/RED GRN/RED
GRN GRN
[A]
[B]“E40”, “E388”, “G04” “E388”, “L04” “L395”, “Q102” “Q134”, “S121” and “S172”
L04-4
L04-3
“L395” “Q132” “Q103”
L04-28 L04-46
L04-47
L04-45
L04-44 “L36”“G347” “S172” “L378” “G345”
“L35”ORN
18L04-50
L04-51 “E40”
“Q134” “Q105” “L385”
L04-12
L04-11
GRY/RED
GRY
BLK BLU
27
PNK/BLK ORN
PNK/BLK
BLU/RED
YEL/REDBLU/RED
YEL/RED
“L377” “G344” “G259”
24L04-5
L04-6
GRN/ORN
GRN/YEL
BLU/ORN
BLU/YEL
L04-9
L04-7
L04-8
25
26 “L283”
L04-10
“L285”
L04-20
L04-19“Q104” “Q133” “L384”
L04-13
L04-14BLK BLU BRN/WHT
BRN28
BLK/YEL
BRN/YELBLK/YEL
BRN/YEL30 “Q102”L04-21
L04-22
L04-2
L04-27
L04-37
“L04”
“L04”
“E388” “L372”
L04-32
32
31
G
33Y
X
34
: 12V : 30V : 30V : 5V
12V5V30V 30V
35RED 7
119
10“L313” “G272” “G271”
“G241”
“G273”
“G04”
YEL
1314
YEL/BLK
YEL/BLK
RED/BLK
12
12V
PPL/WHT
8
WHT/RED
WHT
WHT
GRN
12
3
3
5
4
6
BLK
“E324”
17+BB
[C]
16
[D]12V
PPL/WHTYEL11
16
I6RW0C820003-01

Downloaded from www.Manualslib.com manuals search engine 8B-19 Air Bag System:
Scan Tool Data Definition
Buck Up Volt (V)
This parameter indicates the capacity of the backup
capacitor installed to maintain the ignition current (as
much as possible) even when the power supply to SDM
that ignites the inflator is shut off.
Battery Voltage (V)
Battery voltage is an analog input signal read by SDM.
Dirv Air Bag Ini Res (Driver air bag initiator
resistance) (ohm)
This parameter indicates the resistance of the driver air
bag initiator circuit.
Pass Air Bag Ini Res (Passenger air bag initiator
resistance) (ohm)
This parameter indicates the resistance of the passenger
air bag initiator circuit.
Driv Preten Ini Res (Driver pretensioner initiator
resistance) (ohm)
This parameter indicates the resistance of the driver seat
belt pretensioner initiator circuit.Pass Preten Ini Res (Passenger pretensioner
initiator resistance) (ohm)
This parameter indicates the resistance of the passenger
seat belt pretensioner initiator circuit.
Driv Sidebag Ini Res (Driver side-air bag initiator
resistance) (ohm)
This parameter indicates the resistance of the driver
side-air bag initiator circuit.
Pass Sidebag Ini Res (Passenger side-air bag
initiator resistance) (ohm)
This parameter indicates the resistance of the passenger
side-air bag initiator circuit.
Driv curtain Ini RES (Driver side curtain-air bag
initiator resistance) (ohm)
This parameter indicates the resistance of the driver side
curtain-air bag initiator circuit.
Pass curtain Ini RES (Passenger side curtain-air bag
initiator resistance) (ohm)
This parameter indicates the resistance of the passenger
side curtain-air bag initiator circuit.
System ID (4ch/8ch)
This parameter indicates the number of initiator circuits.
“AIR BAG” Warning Light Comes ON SteadyS6RW0D8204007
Wiring Diagram
“L04”14
5
9RED
RED/BLK GRN
YEL/BLK
BLK
8 7
11
12
15
L04-2
L04-28
L04-27
“G241” “G271” “L313”
13
12V
6
1BLK
WHT WHT
WHT/RED 2
34
310 BLK
“G273”
“E324”
I6RW0C820005-01
1. Battery 5. “IGN” fuse 9. “METER” fuse 13. Light driver
2. Main fuse 6. Ignition switch 10. “DOME” fuse 14. SDM
3. Fuse 7. Junction block assembly 11. Combination meter 15. Ground for SDM
4. Individual circuit fuse box No.1 8. “A/B” fuse 12. “AIR BAG” warning light

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-22
“AIR BAG” Warning Light Does Not Come ONS6RW0D8204008
Wiring Diagram
Refer to ““AIR BAG” Warning Light Comes ON Steady”.
Troubleshooting
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Combination meter power feed circuit check
1) Set parking brake.
2) Note combination meter when ignition switch is turned
ON.
Does the “BRAKE” indicator (warning light) come ON?Go to Step 3. Check combination
meter power and
ground circuit referring
to “C-1 Combination
Meter Circuit Diagram
(Meter) in Section 9A”.
3“AIR BAG” warning light circuit check
1) Disconnect SDM connector “L04”.
2) Note combination meter when ignition switch is turned
ON.
Does the “AIR BAG” warning light come ON?Substitute a known-
good SDM and recheck.Go to Step 4.
4“AIR BAG” warning light circuit check
1) Disconnect SDM connector “L04”.
2) With ignition switch turned ON, measure voltage
between “L04-02” terminal and body ground.
Special tool
(A): 09932–76010
Is measured voltage 0 V?Replace combination
meter.Repair “YEL/BLK”
circuit for short to power
circuit.
(A)“L04-2”
I7RW01822135-01