2006 SUZUKI SWIFT info

Downloaded from www.Manualslib.com manuals search engine 7B-32 Air Conditioning System: Manual Type
Relief Valve Removal and InstallationS7RS0B7216030
Removal1) Recover refrigerant fr om the A/C system with
recovery and recycling equipment referring to
“Recovery” in “Operation Procedure for Refrigerant
Charge”.
2) Remove relief valve (1) from compressor (2). Installation
Reverse removal procedure nothing the following
instructions.
• Use new O-ring.
• Apply compressor oil to O-ring.
• Tighten relive valve to the specified torque.
Tightening torque
Relief valve (a): 8 N·m (0.8 kgf-m, 6.0 lb-ft)
• Evacuate and charge the A/C system referring to “Evacuation” and “Charge” in “Operation Procedure
for Refrigerant Charge”.
Specifications
Tightening Torque SpecificationsS7RS0B7217001
NOTE
The specified tightening torque is also described in the following.
“Compressor Assembly Components”

Reference:
For the tightening torque of fastener not specified in this section, refer to “Fasteners Information in Section 0A”.
12I4RS0A720048-01
(a)I4RS0A720049-01
Fastening part
Tightening torque
Note
N ⋅mkgf-mlb-ft
Receiver/dryer bolt 10 1.0 7.5 )
Expansion valve mount bolt 3.5 0.35 2.5 )
A/C refrigerant pressure sensor 11 1.1 8.0 )
Armature plate bolt 15 1.5 11.0 )
Relief valve 8 0.8 6.0 )

Downloaded from www.Manualslib.com manuals search engine 7B-34 Air Conditioning System: Automatic Type
Automatic Type
Precautions
A/C System CautionS7RS0B7220001
Refer to “A/C System Caution”.
Precautions in Diagnosing TroubleS7RS0B7220002
• Do not disconnect couplers from HVAC control module, battery cable from battery, HVAC control module ground
wire harness from body or main fuse before confirming diagnostic information (diagnostic trouble code) stored in
HVAC control module memory.
• Diagnostic information (diagnostic trouble code) stored in HVAC control module can be checked by display of HVAC
control module. Also, it can be checked by using SU ZUKI scan tool. Before checking diagnostic information
(diagnostic trouble code), read this manual and operator's manual for SUZUKI scan tool to know how to read
diagnostic information (diagnostic trouble code).
• When trouble is diagnosed using diagnostic information (diagnostic trouble code) on display of HVAC control
module, keep in your mind that each diagnostic inform ation (diagnostic trouble code) has priority, and only
diagnostic information (diagnostic troub le code) which has the highest priority is indicated. Therefore, after
troubleshooting the malfunction, make sure if there exists any other diagnostic information (diagnostic trouble
code).
• Be sure to read “Precautions for Electrical Circuit Service in Section 00” before inspection.
Precautions on Servicing A/C SystemS7RS0B7220003
Refer to “Precautions on Servicing A/C System”.
General Description
Auto A/C System DescriptionS7RS0B7221001
The automatic type air conditioning system (auto A/C) is pr ovided with the function to automatically control the inside
air temperature, fan speed, air flow outl et direction and air intake position by HVAC control module in addition to
functions of the manual type air conditioning system (manua l A/C). Once the inside air temperature is set using the
temperature selector, HVAC control module automatically controls the inside air temperature at the constant level at all
times based on the inside air temperature, outside ai r temperature, amount of sunlight and engine coolant
temperature detected respectively by the inside air te mperature sensor, outside air temperature sensor, sunload
sensor and ECT sensor. At this time, “FULL AUTO A/ C” appears on the display of HVAC control module.
With the air intake selector pushed in the above state, it is possible to select any position of the air intake actuator.
Then, “FULL AUTO A/C” on the display changes to “AUTO A/C”.

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-37
On-Board Diagnostic System DescriptionS7RS0B7221007
NOTE
The diagnostic information as diagnostic
trouble code (DTC) can be known by using
SUZUKI scan tool. For further details, refer to
“DTC Check”.

HVAC control module detect s malfunctions, which may
occur in the following area.
• Outside air temperature sensor
• Inside air temperature sensor
• Evaporator temperature sensor
• Sunload sensor
• ECT sensor
• Temperature control actuator of HVAC unit
• Air flow control actuator of HVAC unit
• A/C refrigerant pressure sensor • HVAC control module
• VSS
• Serial Communication line
• CAN communication line
When HVAC control module detects malfunction, the
“AUTO” indicator lamp (1) flashes to warn and the
diagnostic trouble code (DTC) is stored in the memory of
the module. When diagnosing trouble, the DTC can be
checked according to “DTC Check”.
Schematic and Routing Diagram
Major Components of A/C SystemS7RS0B7222001
Refer to “Major Components of A/C System”.
1
I5RS0A722003-01

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-39
Diagnostic Information and Procedures
A/C System Symptom DiagnosisS7RS0B7224001
4. Rear defogger relay 15. Evaporator temperature sensor 26. Radiator cooling fan relay No.1 37. Rear defogger switch
5. Rear defogger 16. Sunload sensor 27. Radiator cooling fan relay No.2 38. To BCM
6. Blower motor relay 17. Junction block assembly 28. Radiator cooling fan relay No.3 39. To ECM
7. Blower motor 18. ECM 29. Information display 40. To main relay
8. Blower motor controller 19. ECT sensor 30. Lighting switch 41. To main fuse
9. DLC 20. Radiator cooling fan motor 31. A/C switch 42. Back-light
10. Air intake actuator 21. Compressor relay 32. MODE (air flow) selector 43. Defroster indicator 11. Air flow control actuator 22. Compressor 33. Air intake selector 44. Rear defogger indicator
Condition Possible cause Correction / Reference Item
No cool air comes out (A/
C system does not
operate) No refrigerant
Perform recovery, evacuation and charge
referring to “Operation Procedure for
Refrigerant Charge”.
Fuse blown Check related fuses, and then check for short
circuit to ground.
A/C switch faulty Check A/C switch referring to “Inspection of
HVAC Control Module and Its Circuit”.
Evaporator temperature sensor faulty Check evaporator temperature sensor
referring to “Evaporator Thermistor
(Evaporator Temperature Sensor) Inspection”.
A/C refrigerant pressure sensor faulty Check A/C refrigerant pressure sensor
referring to “A/C Refrigerant Pressure Sensor
and Its Circuit Inspection”.
Wiring or grounding faulty Repair as necessary.
ECT sensor faulty Check ECT sensor referring to “ECT Sensor
Inspection in Section 1C”.
ECM faulty Check ECM referring to “A/C System
Inspection at ECM”.
HVAC control module faulty Check HVAC control module referring to
“Inspection of HVAC Control Module and Its
Circuit”.
Magnet clutch faulty Check magnet clutch. Referring to “Magnet
Clutch Inspection”.
Compressor drive belt loosened or
broken Adjust or replace drive belt.
Compressor faulty Check compressor.
Compressor relay faulty Check compressor relay referring to
“Compressor Relay Inspection”.
Temperature selector, blower speed
selector, and/or air flow selector faulty Check HVAC control module referring to
“Inspection of HVAC Control Module and Its
Circuit”.
BCM faulty Check BCM referring to “Inspection of BCM
and its Circuits in Section 10B”.

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-63
DTC B1546: A/C Refrigerant Pressure MalfunctionS7RS0B7224018
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC B1551: Serial Communication Circuit MalfunctionS7RS0B7224019
Wiring DiagramDTC detecting condition Trouble area
A/C refrigerant pressure sensor signal voltage is lower t han specified value
even though outside air temperature is higher than specified value for
specified time continuously. • Insufficient of refrigerant
• A/C refrigerant pressure sensor
• Outside air temperature sensor
• HVAC control module
Step
Action YesNo
1 A/C refrigerant pressure and outside air temperature
check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Start engine and select “DATA LIST” mode on scan tool.
3) Check “Refrigerant Pressure” and “Outside Air Temp” varies displayed on scan tool.
Is displayed each va ries described varies in “Scan Tool
Data”? Go to Step 2.
Check the amount of
refrigerant and system
for leaks.
2 A/C system performance check
1) Check A/C system performance referring to “A/C System
Performance Inspection”.
Is check result satisfactory? Go to Step 3.
Repair or replace
defective part.
3 A/C refrigerant pressure sensor check
1) Check A/C refrigerant pressure sensor referring to “A/C
Refrigerant Pressure Sensor and Its Circuit Inspection”.
Is check result satisfactory? Go to Step 4.
A/C refrigerant pressure
sensor faulty.
4 Outside air temperature sensor check
1) Check outside air temperature sensor referring to
“Information Display (Clock) Removal and Installation in
Section 9C”.
Is check result satisfactory? HVAC control module
faulty.
Outside air temperature
sensor faulty.
YEL17812910
65 431516 14 13 12 11
G52
789101920121112
65 431718 16 15 14 13
G51
G51-7
12V
2
3
G37-11
I5RS0A722016-01
1. HVAC control module 2. BCM3. Information display

Downloaded from www.Manualslib.com manuals search engine 7B-64 Air Conditioning System: Automatic Type
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC B1552: Serial Communication Signal MalfunctionS7RS0B7224020
DTC Detecting Condition and Trouble AreaDTC detecting condition Trouble area
Serial communication signal is higher than or lower than specified value for
specified time continuously. • Serial communication line of BCM
• BCM (included in junction block
assembly)
• Information display
• HVAC control module
Step Action YesNo
1 DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Disconnect connector from information display.
3) Turn ignition switch ON and check DTC.
Is there DTC B1551? Go to Step 2.
Information display
faulty.
2 Wire harness check
1) Disconnect connectors from BCM and HVAC control
module.
2) Measure resistance between “G37-11” terminal of BCM connector and “G51-7” terminal of HVAC control module
connector.
Is resistance below 5
Ω? Go to Step 3. “YEL” wire open or high
resistance circuit.
3 Wire harness check
1) Measure resistance between “G51-7” terminal of HVAC
control module connector and vehicle body ground.
Is resistance infinity? Go to Step 4. “YEL” wire shorted to
ground circuit.
4 Wire harness check
1) Measure voltage between “G51-7” terminal of HVAC
control module connector and vehicle body ground with
ignition switch turned ON.
Is voltage 0 V? Go to Step 5. “YEL” wire shorted to
other circuit.
5 Serial communication signal check
1) Connect connectors to BCM and HVAC control module.
2) Using oscilloscope, check that serial communication
signal is outputted referring to “Reference waveform
No.8” of “Inspection of BCM and its Circuits in Section
10B”.
Is serial communication signal outputted at “G37-11”
terminal of BCM connector? HVAC control module
faulty.
BCM (included in
junction block
assembly) faulty.
DTC detecting condition
Trouble area
Data received by HVAC control module from BCM is erroneous continuously. • BCM (included in junction block assembly)
• HVAC control module

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-77
HVAC Control Module Removal and InstallationS7RS0B7226013
Removal1) Disconnect negative (–) cable at battery.
2) Disable air bag system referring to “Disabling Air Bag System in Section 8B”.
3) Remove passenger air bag module from instrument panel referring to “Passenger Air Bag (Inflator)
Module Removal and Installation in Section 8B”.
4) Remove radio assembly from instrument panel referring to “Rear Speaker Removal and Installation
in Section 9C”.
5) Remove two connectors fr om HVAC control module.
6) Remove HVAC control modu le (1) from instrument
panel.
NOTE
Be careful not to damage HVAC control
module and instrument panel by using rag.

Installation
Reverse removal procedure noting the following
instructions.
Enable air bag system referring to “Enabling Air Bag
System in Section 8B”.
Sunload Sensor Removal and InstallationS7RS0B7226014
Removal
1) Disconnect negative (–) cable at battery.
2) Remove combination meter 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). Installation
Reverse removal procedure.
Sunload Sensor InspectionS7RS0B7226015
1) Light over sunload sensor vertically with an
incandescent lamp of approximately 100 W. The
distance between sunload sensor and lamp should
be approximately 100 mm (3.94 in.).
2) Measure voltage between terminals of sunload sensor as shown.
If check result is not satisfactory, replace sunload
sensor with new one.
Sunload sensor voltage specification
0.4 V or more
Outside Air Temperature Sensor Removal and
Installation
S7RS0B7226016
Refer to “Instrument Panel Re moval and Installation in
Section 9C”.
Outside Air Temperature Sensor InspectionS7RS0B7226017
Refer to “Information Display (Clock) Removal and
Installation in Section 9C”.
1
I5RS0A722030-01
1
2
I5RS0A722027-01
I4RH01722036-01

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 a nd Diagnosis of Seat
Belt .................................................................... 8A-1
General Description ............................................. 8A-1 Seat Belt Construction ........................................ 8A-1
Diagnostic Information and Procedures ............ 8A-2 Repair and Inspection Required after Accident ............................................................ 8A-2
Repair Instructions .............................................. 8A-3 Front Seat Belt Components ............................... 8A-3
Front Seat Belt Removal and Installation ............ 8A-4
Front Seat Belt Inspection ................................... 8A-4
Rear Seat Belt Components ............................... 8A-6
Rear Seat Belt Removal and Installation ............ 8A-7
Rear Seat Belt Inspection ................................... 8A-7
Specifications ....................................................... 8A-7
Tightening Torque Specifications ........................ 8A-7
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-2
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 Input / Output Table .................. 8B-6
Schematic and Routing Diagram ........................ 8B-7 Air Bag System Wiring Circuit Diagram .............. 8B-7
Component Locatio n ........................................... 8B-9
Air Bag System Components, Wiring and Connectors Location ......................................... 8B-9
Diagnostic Information and Procedures .......... 8B-10 Air Bag Diagnostic System Check .................... 8B-10
Air Bag Diagnostic System Check Flow ............ 8B-10
DTC Table ......................................................... 8B-11
DTC Check ....................................................... 8B-12 DTC Clearance ................................................. 8B-12
Scan Tool Data ................................................. 8B-13
“AIR BAG” Warning Right Comes ON Steady .. 8B-13
“AIR BAG” Warning Right Does Not Come
ON ................................................................... 8B-15
“AIR BAG” Warning Right Flashes .................... 8B-16
DTC B1013: SDM fault...................................... 8B-17
DTC B1014: “AIR BAG” Warning Right Circuit Failure ............................................................. 8B-17
DTC B1016: Power Source Voltage High ......... 8B-18
DTC B1017: Power Source Voltage Low .......... 8B-20
DTC B1021: Front Air Bag Module Deployed ... 8B-22
DTC B1024 / B1025: Side-Air Bag (Driver / Passenger) Deployed...................................... 8B-22
DTC B1026: Pretensioner Activated ................. 8B-23
DTC B1027: Reusable Number Exceeded ....... 8B-24
DTC B1031: Driver Air Bag Initiator Circuit
Resistance High .............................................. 8B-24
DTC B1032: Driver Air Bag Initiator Circuit
Resistance Low ............................................... 8B-29
DTC B1033: Driver Air Bag Initiator Circuit
Short to Ground............................................... 8B-34
DTC B1034: Driver Air Bag Initiator Circuit
Short to Power Circuit .... ................................. 8B-39
DTC B1041: Passenger Air Bag Initiator Circuit Resistance High ................................... 8B-44
DTC B1042: Passenger Air Bag Initiator Circuit Resistance Low.................................... 8B-47
DTC B1043: Passenger Air Bag Initiator Circuit Short to Ground ................................... 8B-50
DTC B1044: Passenger Air Bag Initiator Circuit Short to Power Circ uit .......................... 8B-53
DTC B1051 / B1055: Driver / Passenger Pretensioner Initiator Circuit Resistance
High ................................................................. 8B-56
DTC B1052 / B1056: Driver / Passenger Pretensioner Initiator Circu it Resistance Low .. 8B-58
DTC B1053 / B1057: Driver / Passenger Pretensioner Initiator Circuit Short to Ground .. 8B-60
DTC B1054 / B1058: Driver / Passenger Pretensioner Initiator Circuit Short to Power
Circuit .............................................................. 8B-62
DTC B1061 / B1065: Driver / Passenger Side- Air Bag Initiator Circuit Resistance High ......... 8B-64