heat SUZUKI SWIFT 2006 2.G Service Owners Manual

Downloaded from www.Manualslib.com manuals search engine 7B-8 Air Conditioning System: Manual Type
Cool air does not come
out or insufficient cooling
(A/C system normal
operation)Insufficient or excessive charge of
refrigerant
Check the amount of refrigerant and system
for leaks.
Condenser clogged Check condenser referring to “Condenser
Assembly On-Vehicle Inspection”.
A/C evaporator clogged or frosted Check A/C evaporator and evaporator
thermistor (evaporator temperature sensor)
referring to “Evaporator Inspection” and
“Evaporator Thermistor (Evaporator
Temperature Sensor) Inspection”.
Evaporator thermistor (Evaporator
temperature sensor) faulty Check evaporator thermistor (Evaporator
temperature sensor) referring to “Evaporator
Thermistor (Evaporator Temperature Sensor)
Inspection”.
Expansion valve faulty Check expansion valve referring to “Expansion
Valve Inspection”.
Desiccant clogged Replace receiver/dryer.
Compressor drive belt loosened or
broken Adjust or replace drive belt.
Magnet clutch faulty Check magnet clutch referring to “Magnet
Clutch Inspection”.
Compressor faulty Check compressor.
Air in A/C system Replace receiver/dryer, and then perform
evacuation and charge referring to “Operation
Procedure for Refrigerant Charge”.
Air leaking from HVAC unit or air duct Repair as necessary.
Heater and ventilation system faulty Check HVAC unit.
Blower motor faulty Check blower motor referring to “Blower Motor
Inspection in Section 7A”.
Excessive compressor oil in A/C system Drain excessive compressor oil from A/C
system circuit and compressor.
Cool air does not come
out only intermittently Wiring connection faulty
Repair as necessary.
Expansion valve faulty Check expansion valve referring to “Expansion
Valve Inspection”.
Excessive moisture in A/C system Replace receiver/dryer, and then perform
evacuation and charge referring to “Operation
Procedure for Refrigerant Charge”.
Magnet clutch faulty Check magnet clutch referring to “Magnet
Clutch Inspection”.
Excessive amount of refrigerant Check the amount of refrigerant.
Cool air comes out only
when driving vehicle at
high speed Condenser clogged
Check condenser referring to “Condenser
Assembly On-Vehicle Inspection”.
Insufficient charge of refrigerant Check the amount of refrigerant and system
for leaks.
Air in A/C system Replace receiver/dryer, and then perform
evacuation and charge referring to “Operation
Procedure for Refrigerant Charge”.
Compressor drive belt loosened or
broken Adjust or replace drive belt.
Compressor faulty Check compressor.
Cool air does not come
out only when driving
vehicle at high speed Excessive amount of refrigerant
Check the amount of refrigerant.
A/C evaporator frosted Check A/C evaporator and evaporator
thermistor (evaporator temperature sensor)
referring to “Evaporator Inspection” and
“Evaporator Thermistor (Evaporator
Temperature Sensor) Inspection”.
Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine 7B-12 Air Conditioning System: Manual Type
High pressure gauge
Low pressure gaugeCondition Possible cause Correction
Pressure is higher than
acceptable range
(“A” area) Refrigerant overcharged Recharge.
Expansion valve frozen or clogged Check expansion valve.
Clogged refrigerant passage of high pressure side Clean or replace.
Radiator cooling fan malfunction
(Insufficient cooling of condenser)
Check radiator cooling fan.
Dirty or bent condenser fins
(Insufficient cooling of condenser) Clean or repair.
Compressor malfunction (Insuffi cient oil etc.) Check compressor.
Engine overheat Check engine cooling system
referring to “Engin
e Cooling Symptom
Diagnosis in Section 1F”.
Pressure is lower than
acceptable range
(“B” area) Insufficient refrigerant
(Insufficient charge or leakage)
Check for leakage, repair if necessary
and recharge.
Expansion valve malfunction
(valve opens too wide) Check expansion valve.
Compressor malfunction
(Insufficient compression) Check compressor.
Condition Possible cause Correction
Pressure is higher than
acceptable range
(“C” area) Expansion valve malfunction
(valve opens too wide)
Check expansion valve.
Compressor malfunction
(Insufficient compression) Check compressor.
Pressure is lower than
acceptable range
(“D” area) Insufficient refrigerant
(Insufficient charge or leakage)
Check for leakage, repair if necessary
and recharge.
Expansion valve malfunction
(valve opens too narrow) Check expansion valve.
Clogged refrigerant passage (crashed pipe) Repair or replace.

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Manual Type 7B-13
11) Check inlet port temperature-to-outlet port temperature relationship using the graph. For example, if temperature
near air inlet of HVAC unit is 30 °C (86 °F) and the one at air outlet of center ventilation louver is 17 °C (62.6 °F),
their crossing point is within acceptable range as shown in the graph. In this case, cooling performance is
satisfactory and proper.
12) If crossing point is out of acceptable range, diagnose trouble referring to the following table.
Thermometer at center duct
NOTE
If ambient temperature is approximately 30 °C (86 °F), it is possible to diagnose A/C system in detail
referring to the following table.

[A]: Temp at air outlet of center ventilation louver [C]: Humidity
[B]: Temp near air inlet of HVAC unit [D]: Acceptable range
ConditionPossible cause Correction
Crossing point is higher
than acceptable range
(“E” area) Insufficient or excessive charge of refrigerant Check refrigerant pressure.
Dirty or bent A/C evaporator fins
Clean or repair.
Air leakage from cooling (heater) unit or air duct Repair or replace.
Malfunctioning, switch over function of door in
cooling (heater) unit Repair or replace.
Compressor malfunct ion Check compressor.
Crossing point is lower
than acceptable range
(“F” area) Insufficient air volume from center duct
(Heater blower malfunction)
Check blower motor and fan.
Compressor malfunct ion Check compressor.
8 9
10 11 12 13 14
15 16 17 18 19
20
21
22
23
24
25 26
27
28
46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8 62.6 64.4
66.2 68.0
69.8
71.6
73.4
75.2
77.0
78.8 80.6
82.4
25 30 35
77 86 95
F C
C
F
“E”
“F”30 70 %
[A]
[B][C]
[D]
I7RS0A721007-01

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Manual Type 7B-19
Charge
CAUTION!
• Because the sight glass is not used for this A/C system, do not perform an additional
charge to the A/C system. To charge the
proper amount of refrigerant, recover and
evacuate the A/C system first. And then,
charge the proper amount of refrigerant
into the A/C system.
• Always charge refrigerant through low pressure side of A/C system after the initial
charge is performed from the high
pressure side with the engine stopped.
• Never charge refrigerant through high pressure side of A/C system with engine
running.
• Do not charge refrigerant while compressor is hot.
• When installing tap valve to refrigerant container to make a hole there through,
carefully follow dire ctions given by
manufacturer.
• A pressure gauge should always be used before and during refrigerant charge.
• The refrigerant container should be emptied of refrigerant when discarding it.
• The refrigerant container should not be heated up to 40 °C (104 °F) or over.
• Refrigerant container should not be reversed in direction during refrigerant
charge. Reversing in direction causes
liquid refrigerant to enter compressor,
causing troubles, such as compression of
liquid refrigerant and the like.

NOTE
The air conditioning system contains HFC-
134a (R-134a).
Described here is a method to charge the air
conditioning system with refrigerant from the
refrigerant service container.
When charging refrigerant recovered by
using the refrigerant and recycling
equipment (when recycling refrigerant),
follow the procedure described in the
equipment manufacturer’s instruction
manual.

Charge proper amount of refrigerant accurately in
accordance with the following procedure.
Specified amount of refrigerant
370 ± 20 g (13.0 ± 0.7 oz)
The initial charge of the A/C system is performed
through the high pressure side with the engine stopped.
And next, this method must be followed by charging from
the low pressure side with the engine running.
1) Check if hoses are routed properly after evacuating the system.
2) Connect low charging hose (1) and high charging hose (2) of the manifold gauge set (3) in position.
Then, open refrigerant container valve (4) to purge
the charging line.
3) Open the high pressure side valve (5) and charge refrigerant to system.
4) After a while, open the low pressure side valve (6) and close the high pressure side valve.
WARNING!
Make sure that high pressure side valve is
closed securely.

5) Start engine and keep engine speed at 1500 r/min, and then operate A/C system.
6) Charge A/C system with refrigerant in vapor state. At this time, refrigerant container should be held
upright.
1
2 6 3
5 4
I4RS0A720015-01

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Manual Type 7B-23
HVAC Unit ComponentsS7RS0B7216005
NOTE
The figure shows left-hand steering vehicle. For right-hand steering vehicle, parts with (*) are installed
at the opposite side

10 * 2 *
6
7
1 *
4 *
2 *
5
7
8
8
17
16
18
19
15 *
15 *
15 *
14 *
614 *
12
11 *
21 *
20
2320
22
9 *
13
3 *
5
I5RS0C721007-01
1. Fresh air inlet duct 7. Airflow control door assembly 13. Heater core19. Evaporator thermistor
(evaporator temperature sensor)

Downloaded from www.Manualslib.com manuals search engine 7B-24 Air Conditioning System: Manual Type
HVAC Unit Removal and InstallationS7RS0B7216006
Removal1) Disconnect negative (–) cable from battery.
2) Disable air bag system referring to “Disabling Air Bag System in Section 8B”.
3) Recover refrigerant from A/C system with recovery and recycling equipment referring to “Recovery” in
“Operation Procedure for Refrigerant Charge”.
4) Remove cowl top panel referring to “Cowl Top Components in Section 9K”.
5) Drain engine coolant, and then disconnect heater hoses (1) from HVAC unit (2).
6) Remove instrument panel from vehicle body referring to “Audio Unit Re moval and Installation in
Section 9C”.
7) Loosen suction hose and liquid pipe bolt (4).
8) Remove nuts (3).
9) Remove HVAC unit from vehicle body. Installation
Reverse removal procedure noting the following
instructions.
• Replenish specified amount of compressor oil to
compressor suction side referring to “Replenishing
Compressor Oil” in “Operation Procedure for
Refrigerant Charge”.
• Install the padding (1) to the installation hole uniformly.
• Evacuate and charge the A/C system referring to “Evacuation” and “Charge” in “Operation Procedure
for Refrigerant Charge”.
• Adjust control cables referr ing to “HVAC Control Unit
Removal and Installati on in Section 7A”.
• Enable air bag system referring to “Enabling Air Bag System in Section 8B”.
Evaporator InspectionS7RS0B7216007
Check the followings.
• Clog of A/C evaporator fins.If any clogs are found, A/C evaporator fins should be
washed with water, and then should be dried with
compressed air.
• A/C evaporator fins for leakage and breakage. If any defects are found, repair or replace A/C
evaporator.
• A/C evaporator fittings for leakage. If any defects are found, repair or replace A/C
evaporator.
2. Blower upper case 8. Temperature control door assembly 14. Temperature control lever 20. Packing
3. Air intake control actuator 9. Blower motor resistor 15. Airflow control lever21. Filter cover (if equipped)
4. HVAC Air filter (if equipped) 10. Blower lower case 16. Evaporator22. Drain hose
5. Heater unit upper case 11. Blower motor 17. O-ring23. Cable lock clamp
6. Foot duct 12. Heater unit lower case 18. Expansion valve: Do not reuse.
3
2
3
3
1
4
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1
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Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-41
Cool air does not come
out or insufficient cooling
(A/C system normal
operation)Insufficient or excessive charge of
refrigerant
Check the amount of refrigerant and system
for leaks.
Condenser clogged Check condenser referring to “Condenser
Assembly On-Vehicle Inspection”.
A/C evaporator clogged or frosted Check A/C evaporator and evaporator
temperature sensor referring to “Evaporator
Inspection” and “Evaporator Thermistor
(Evaporator Temperature Sensor) Inspection”.
Evaporator temperature sensor faulty Check evaporator temperature sensor
referring to “Evaporator Thermistor
(Evaporator Temperature Sensor) Inspection”.
Expansion valve faulty Check expansion valve referring to “Expansion
Valve Inspection”.
Desiccant clogged Replace receiver/dryer.
Compressor drive belt loosened or
broken Adjust or replace drive belt.
Magnet clutch faulty Check magnet clutch. Referring to “Magnet
Clutch Inspection”.
Compressor faulty Check compressor.
Air in A/C system Replace receiver/dryer, and then perform
evacuation and charge referring to “Operation
Procedure for Refrigerant Charge”.
Air leaking from HVAC unit or air duct Repair as necessary.
Heater and ventilation system faulty Check HVAC unit.
Temperature selector faulty Check temperature selector referring to
“Inspection of HVAC Control Module and Its
Circuit”.
HVAC control module faulty Check HVAC control module referring to
“Inspection of HVAC Control Module and Its
Circuit”.
Temperature control actuator faulty Check temperature control actuator referring to
“Temperature Control Actuator Inspection”.
Blower motor faulty Check blower motor referring to “Blower Motor
Inspection in Section 7A”.
Excessive compressor oil in A/C system Drain excessive compressor oil from A/C
system circuit and compressor.
Cool air does not come
out only intermittently Wiring connection faulty
Repair as necessary.
Expansion valve faulty Check expansion valve referring to “Expansion
Valve Inspection”.
Excessive moisture in A/C system Replace receiver/dryer, and then perform
evacuation and charge referring to “Operation
Procedure for Refrigerant Charge”.
Magnet clutch faulty Check magnet clutch. Referring to “Magnet
Clutch Inspection”.
Excessive amount of refrigerant Check the amount of refrigerant.
Cool air comes out only at
high speed Condenser clogged
Check condenser referring to “Condenser
Assembly On-Vehicle Inspection”.
Insufficient charge of refrigerant Check the amount of refrigerant and system
for leaks.
Air in A/C system Replace receiver/dryer, and then perform
evacuation and charge referring to “Operation
Procedure for Refrigerant Charge”.
Compressor drive belt loosened or
broken Adjust or replace drive belt.
Compressor faulty Check compressor.
Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-73
HVAC Unit Removal and InstallationS7RS0B7226003
Refer to “HVAC Unit Removal and Installation”.
Temperature Control Actuator Removal and
Installation
S7RS0B7226004
Removal1) Disconnect negative (–) cable at battery.
2) Remove steering column hol e cover from instrument
panel.
3) Remove foot duct from HVAC unit.
4) Disconnect temperature control actuator connector (1).
5) Detach temperature control actuator rods (2) from linkage (3).
6) Remove temperature control actuator (4) from HVAC unit.
Installation
Reverse removal procedure.
Temperature Control Actuator InspectionS7RS0B7226005
1) Remove temperature control actuator from HVAC unit referring to “Temperature Control Actuator
Removal and Installation”.
2) Connect connector to temperature control actuator.
3) Set temperature selector of HVAC control module to MAX HOT position with ignition switch ON, and
make sure if the position of actuator lever is MAX
HOT position (A).
4) Turn ignition switch OFF, and then disconnect connector from temperature control actuator.
5) Measure resistance between terminal “3” and “5”.
Temperature control actuator resistance between
terminal “3” and “5” (MAX HOT position)
Approximately 2.5 k Ω at 25 °C (77 °F) 6) Connect connector to tem
perature control actuator.
7) Set temperature selector of HVAC control module to MAX COOL position with ignition switch ON, and
make sure if the position of actuator lever is MAX
COOL position (B).
8) Turn ignition switch OFF, and then disconnect connector from temperature control actuator.
9) Measure resistance between terminal “3” and “5”
Temperature control actuator resistance between
terminal “3” and “5” (MAX COOL position)
Approximately 4.8 k Ω at 25 °C (77 °F)
If check result is not satisfactory, replace the actuator
with new one.
2. Blower upper case 9. Blower motor controller 16. Evaporator 23. Temperature control actuator
3. Air intake control actuator 10. Blower lower case 17. O-ring24. Air flow control actuator
4. Air filter (if equipped) 11. Blower motor 18. Expansion valve25. Inside air temperature sensor
5. Heater unit upper case 12. Heater unit lower case 19. Evaporator temperature sensor 26. Aspirator hose
6. Foot duct 13. Heater core 20. Packing : Do not reuse.
7. Air flow control door assembly 14. Temperature control links 21. Filter cover
1
2
2
3
4
I5RS0A722020-02
I5RS0A722021-03
I5RS0A722022-03

Downloaded from www.Manualslib.com manuals search engine 8B-120 Air Bag System:
13) Separate two banana plugs (1) on deployment harness.
14) Connect deployment harness to 12 volts vehicle battery (2). This will immedi ately deploy or activate
air bag (inflator) module or seat belt pretensioner.
15) Disconnect deployment harness from 12 volts vehicle battery (2) and short two deployment
harness leads together by fully seating one banana
plug into the other.
16) In the unlikely event that air bag (inflator) module or seat belt pretensioner did not deploy / activate after
following these procedur es, proceed immediately
with Step 22) through 25). If air bag (inflator) module
or seat belt pretensioner did deploy or activate,
proceed with Steps 18) through 21).
17) Put on pair of shop gloves to protect your hands from possible irritation and heat when handling deployed
air bag (inflator) module or activated seat belt
pretensioner.
18) Disconnect adapter cable (special tool) from air bag (inflator) module or seat belt pretensioner as soon as
possible. This will preven t adapter cable (special
tool) from damage due to possible contact with hot
air bag (inflator) module or hot seat belt
pretensioner.
19) Check adapter cable as follows. • For air bag (inflator) moduleBe sure to check air bag (inflator) module adapter
cable (special tool) for damage after deployment
and replace it with new adapter cable (special
tool), if it is damaged.
• For seat belt pretensioner Be sure to check seat belt pretensioner adapter
cable (special tool) for damage after seat belt
pretensioner is activated. Replace it with spare
connector (special tool) or new adapter, if
necessary. 20) Dispose of deployed air bag (inflator) module (1) or
activated seat belt preten sioner (2) through normal
refuse channels after it has cooled for at least 30
minutes and tightly seal air bag (inflator) module (1)
or seat belt pretensioner (2) in strong vinyl bag.
Refer to “Deployed Air B ag (Inflator) Module and
Activated Seat Belt Pretensioner Disposal” for
details.
21) Wash your hands with mild soap and water afterward.
NOTE
Remaining steps are to be followed in the
unlikely event that air bag (inflator) module
did not deploy or seat belt pretensioner did
not activate.

22) Ensure that deployment harness has been disconnected from 12 volts vehicle battery and that
its two banana plugs have been shorted together by
fully seating one banana plug into the other.
23) Disconnect deployment harness and adapter cable from air bag (inflator) module or seat belt
pretensioner.
24) Temporarily store undeployed air bag (inflator) module referring to “Precautions on Service and
Diagnosis of Air Bag System” for details.
25) Contact your local distributor for further assistance.
I2RH01820069-01I3JA01820116-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-123
8) Route deployment harness (1) out of vehicle.
9) Check that inside of vehicle and area surrounding vehicle are clear of all people and loose or
flammable objects.
10) Stretch deployment harness (1) to its full length 10 m (33 ft).
11) Place 12 volts vehicle battery (2) near shorted end of deployment harness (1).
12) Completely cover windshield area and front door window openings with drop cloth, a blanket or any
similar item. This reduces possibility of injury due to
possible fragmentation of vehicle’s glass or interior.
13) Notify all people in immediate area that you intend to deploy air bag (inflator) module or activate seat belt
pretensioners.
NOTE
• When air bag (inflator) module deploys or seat belt pretensioners activate, rapid gas
expansion will create substantial report.
Wear suitable ear protection. Notify all
people in immediate area that you intend
to deploy air bag (inflator) module or to
activate seat belt pretensioner and suitable
ear protection should be worn.
• After air bag (inflator) module has been deployed, surface of air bag may contain
powdery residue. This powder consists
primarily of cornstarch (used to lubricate
air bag (inflator) module as it inflates) and
by-products of chemical reaction.

WARNING!
• Do not place deployed air bag (inflator) module and activated seat belt
pretensioners near any flammable objects.
• Do not apply water, oil, etc. to deployed air bag (inflator) module and activated seat
belt pretensioners.
• Wait for about 30 minutes before touching any metal surface of air bag (inflater)
module or seat belt pretensioner modules.
Disregarding these precautions may cause
fire or personal injury.
Failure to follow procedures may result in fire
or personal injury.

14) Separate two banana plugs (1) on deployment harness (2).
15) Connect deployment harness (2) to 12 volts vehicle battery (3). This will immedi ately deploy or activate
air bag (inflator) module or seat belt pretensioners.
16) Disconnect deployment harness (2) from 12 volts vehicle battery (3) and short two deployment
harness leads together by fully seating one banana
plug into the other.
17) Repeat Steps 3) through 16) to deploy / activate air bag (inflator) modules and seat belt pretensioners
which has not been deployed / activated, if any.
18) In the unlikely event that air bag (inflator) module and seat belt pretensioners after following these
procedures, proceed immediately with Step 24)
through 26). If air bag (inflator) module and seat belt
pretensioners did deploy / activate, proceed with
Steps 19) through 23).
19) Carefully remove drop cloth from vehicle and clean off any fragments or discard it entirely.
20) Put on pair of shop gloves to protect your hands from
possible irritation and heat when handling deployed
air bag (inflator) module and activated seat belt
pretensioners.
10 m (33 ft) 1
2
3
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1
3 2
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