2004 SUZUKI SWIFT Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Manual Type 7B-21
Removal of Manifold Gauge Set
WARNING!
High pressure side is under high pressure.
Therefore, be careful not to get injured
especially on your eyes and skin.

For the A/C system charged with the specified amount of
refrigerant, remove manifold gauge set as follows:
1) Close low pressure side valve of manifold gauge set. (The high pressure side valve is closed continuously
during the process of charging.)
2) Close refrigerant container valve.
3) Stop engine.
4) Using shop rag, remove charging hoses from service valves. This operation must be performed quickly.
5) Put caps on service valves.
Check A/C System for Refrigerant Leaks
Whenever a refrigerant leak is suspected in the system
or any service operation has been performed which may
result in malfunction of lines and connections, it is
advisable to check for leaks.
Common sense should be used during refrigerant leak
test, since the need and extent of any such test will, in
general, depend upon the nature of a complaint and the
type of a service performed on the system.
Liquid leak detector
WARNING!
• To prevent explosions and fires, make sure that there are no flammables in the vicinity.
• When the refrigerant exposed to fire, it turns into a poisonous gas (phosgene). Do
not inhale this gas.

There is a number of fittings and places throughout the
A/C system where a liquid leak detector solution may be
used to pinpoint refrigerant leaks.
By merely applying the solution to the area in question
with a swab, such as attached to the cap of a vial,
bubbles will form within seconds if there is a leak.
For confined areas, such as sections of the evaporator
and condenser, an electronic (refrigerant) leak detector
is more practical fo r determining leaks.
Special tool
(A): 09990–86012
Condenser Assembly On-Vehicle InspectionS7RS0B7216002
Check the followings.
• Clog of condenser fins If any clog is found, cond enser fins should be washed
with water and should be dried with compressed air.
• Condenser fins for leakage and breakage If any defects are found, repair or replace condenser.
• Condenser fittings for leakage. If any defects are found, repair or replace condenser.
Condenser Assembly Removal and InstallationS7RS0B7216003
CAUTION!
Do not damage condenser fins. If condenser
fin is bent, straighten it by using flat head
screwdriver or pair of pliers.

Removal
1) Recover refrigerant from A/C system referring to “Operation Procedure for Refrigerant Charge”.
NOTE
The amount of removed compressor oil must
be measured for replenishing compressor
oil.

2) Remove front bumper referring to “Front Bumper and Rear Bumper Components in Section 9K”.
3) Disconnect discharge hose (1) and liquid pipe (2) from condenser assembly (3).
4) Remove condenser assembly mounting bolts (4).
(A)
I5RS0C721006-01
4
1
3
2
I4RS0A720017-01

Downloaded from www.Manualslib.com manuals search engine 7B-22 Air Conditioning System: Manual Type
5) Remove condenser assembly (1) as shown.
Installation
Reverse the removal procedure to install condenser
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”.
• Evacuate and charge the A/C system referring to “Evacuation” and “Charge” in “Operation Procedure
for Refrigerant Charge”.
Receiver/Dryer Removal and InstallationS7RS0B7216031
Removal
1) Remove front bumper referring to “Front Bumper and Rear Bumper Components in Section 9K”.
2) Remove receiver/dryer bolt (1), and then remove receiver/dryer (2) from condenser.
3) Remove joints (3) and O-rings (4). Installation
Reverse the removal procedure noting the following
instructions.
• Replenish specified amount of compressor oil to
compressor suction side referring to “When replacing
other parts” in “Operation Procedure for Refrigerant
Charge”.
• Use new receiver/dryer and O-ring.
• Do not remove plug from receiver/dryer until just before installin g it condenser.
• Apply compressor oil to O-ring.
: Compressor oil 99000–99015–00A
(MATSUSHITADENKI GU10)
• Tighten receiver/dryer bolts to the specified torque. Tightening torque
Receiver/dryer bolt: 10 N· m (1.0 kgf-m, 7.5 lb-ft)
• Evacuate and charge the A/C system referring to “Evacuation” and “Charge” in “Operation Procedure
for Refrigerant Charge”.
1
I4RS0A720018-01
1
4
4
3
2
I7RS0A721008-01

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
I4RS0B720009-01
1
I4RS0B720010-01

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Manual Type 7B-25
Evaporator Thermistor (Evaporator
Temperature Sensor) Removal and Installation
S7RS0B7216008
Removal1) Disconnect negative (–) cable from battery.
2) Remove HVAC unit from vehicle body referring to “HVAC Unit Removal and Installation”.
3) Remove evaporator thermistor (evaporator temperature sensor) (1) from evaporator by
disassembling HVAC unit.
Installation
Reverse the removal procedure noting the following
instruction.
• Install evaporator thermistor (evaporator temperature sensor) (1) onto evaporator (2) as shown.
Evaporator Thermistor (Evaporator
Temperature Sensor) Inspection
S7RS0B7216009
Check resistance between terminals of evaporator
thermistor (1).
If check results are as not specified, replace evaporator
thermistor.
Evaporator thermistor resistance
0 °C (32 °F): 6.6 – 6.9 k Ω
25 °C (77 °F): 1.9 – 2.3 kΩ
[A]: LH steering vehicle
[B]: RH steering vehicle
3. 50 ± 5 mm (2 ± 0.2 in.)
4. Sensor part fixed to 10th fin from the bottom
5. Holding part fixed to 8th fin from the bottom
6. Holding part fixed to 12th fin from the bottom
1
I4RS0B720011-01
5
1
4
2
3
[A]
1
4 2
3
6 [B]
I5RS0C721008-01
[A]: Resistance (k Ω) [B]: Temperature
I4RS0B720012-01

Downloaded from www.Manualslib.com manuals search engine 7B-26 Air Conditioning System: Manual Type
Expansion Valve Removal and InstallationS7RS0B7216010
Removal1) Recover refrigerant fr om the A/C system with
recovery and recycling equipment referring to
“Recovery” in “Operation Procedure for Refrigerant
Charge”.
2) Loosen a bolt (1) and remove pipes from expansion valve (2).
3) Loosen bolts (3) and remove expansion valve.
Installation
Reverse removal procedure noting the following
instructions.
• Apply compressor oil to O-ring of expansion valve and pipes.
• Evacuate and charge the A/C system referring to “Evacuation” and “Charge” in “Operation Procedure
for Refrigerant Charge”.
Tightening torque
Expansion valve mount bolt: 3.5 N·m (0.35 kgf-m,
2.5 lb-ft)
Expansion Valve InspectionS7RS0B7216011
Refer to “A/C System Performance Inspection”.
A/C Refrigerant Pressure Sensor and Its Circuit
Inspection
S7RS0B7216012
1) Disconnect A/C refrigerant pressure sensor connector.
2) Turn ignition switch to ON position.
3) Check if voltage between “RED” wire terminal and “ORN” wire terminal of A/C refrigerant pressure
sensor connector is 4.75 V to 5.25 V.
If not, check A/C refrigerant pressure sensor circuit.
4) Connect A/C refrigerant pressure sensor connector with ignition switch turned OFF.
5) Connect manifold gauge set to the charging valves.
6) Check A/C refrigerant pressure sensor voltage of ECM connector referring to “A/C System Inspection
at ECM”.
If voltage is not as specified below, replace A/C
refrigerant pressure sensor. A/C refrigerant pressure sensor voltage
specifications (A/C refrigerant pressure measured
by manifold gauge)
0.8 MPa (8.0 kg/cm2, 116 psi): 1.46 – 1.71 V
1.4 MPa (14 kg/cm2, 203 psi): 2.28 – 2.53 V
1.6 MPa (16 kg/cm2, 232 psi): 2.55 – 2.80 V
1.8 MPa (18 kg/cm2, 261 psi): 2.82 – 3.03 V
A/C Refrigerant Pressure Sensor Removal and
Installation
S7RS0B7216013
Removal
1) Recover refrigerant from the A/C system with the recovery and recycling equipment referring to
“Recovery” in “Operation Procedure for Refrigerant
Charge”.
2) Disconnect negative (–) cable from battery.
3) Disconnect A/C refrigerant pressure sensor connector.
4) Remove A/C refrigerant pressure sensor (1) from liquid pipe (2).
Installation
Reverse removal procedure noting the following
instructions.
• Apply compressor oil to O-ring of A/C refrigerant
pressure sensor.
• Tighten A/C refrigerant pressure sensor to specified torque.
Tightening torque
A/C refrigerant pressure sensor (a): 11 N·m (1.1
kgf-m, 8.0 lb-ft)
• Evacuate and charge the A/C system referring to “Evacuation” and “Charge” in “Operation Procedure
for Refrigerant Charge”.
1
2 2
3
I4RS0A720028-01
1 2I4RS0A720029-01
(a)I4RS0A720031-01

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Manual Type 7B-27
A/C Switch InspectionS7RS0B7216014
• Check that there is continuity between terminal (1) and terminal (2) when A/C s witch is at ON position.
• Check that there is no continuity between terminal (1) and terminal (2) when A/C s witch is at OFF position.
If check result does not meet the above conditions,
replace HVAC control unit.
Compressor Relay InspectionS7RS0B7216015
1) Disconnect negative (–) cable from battery.
2) Remove compressor relay (1) from main fuse box.
3) Check that there is no continuity between terminal “c” and “d”. If there is continuity, replace relay.
4) Connect battery positive (+ ) terminal to terminal “b”
of relay and battery negative (–) terminal to terminal
“a” of relay, and then check continuity between
terminal “c” and “d”. If there is no continuity, replace
relay.
Compressor Drive Belt Inspection and
Adjustment
S7RS0B7216016
Inspection
• Check compressor drive belt (1) for wear, crack, deformation and cleanliness. If any defect is found,
replace the belt with new one referring to
“Compressor Drive Belt Re moval and Installation”.
• Check compressor drive belt tension by measuring how much it deflects when pushed intermediate point
between magnet clutch pulley (6) and crankshaft
pulley (3) with about 100 N (10 kg) force after rotating
crankshaft pulley 360 °. If belt tension is out of
specification, adjust belt tension referring to
“Adjustment”.
Compressor drive belt tension
“a”
: 7 – 8mm (0.28 – 0.31 in.)
NOTE
When replacing drive belt, adjust drive belt
tension to the following specification.

New compressor dr ive belt tension “a”
: 6 – 7mm (0.24 – 0.28 in.)
Adjustment 1) Loosen tension pulley nut (4).
2) Adjust belt tension by ti ghten or loosen tension
pulley adjusting bolt (5).
3) Tighten tension pulley nut.
4) Rotate the crankshaft pulley 360 °, and then recheck
belt tension.
1 2
I4RS0B720013-01
"d"
"b" "a"
"c"
1
I4RS0B720014-01
2. Tension pulley
I4RS0A720033-01

Downloaded from www.Manualslib.com manuals search engine 7B-28 Air Conditioning System: Manual Type
Compressor Drive Belt Removal and
Installation
S7RS0B7216017
Removal1) Loosen tension pulley nut (1).
2) Loosen belt tension by loosening tension pulley adjusting bolt (2).
3) Remove compressor drive belt (3).
Installation
Reverse removal procedure noting the following
instruction.
• Adjust belt tension referring to “Compressor Drive Belt Inspection and Adjustment”.
Compressor Assembly Removal and
Installation
S7RS0B7216018
Removal
1) Run engine at idle speed with A/C ON for 10 minutes.
2) Stop the engine.
3) Disconnect negative (–) cable from battery.
4) Recover refrigerant fr om the A/C system with
recovery and recycling equipment referring to
“Recovery” in “Operation Procedure for Refrigerant
Charge”.
5) Remove compressor drive belt referring to “Compressor Drive Belt Re moval and Installation”.
6) Remove right side engine under cover.
7) Disconnect magnet clutch lead wire coupler (1).
8) Disconnect discharge hose (2) and suction hose (3) from compressor (4).
NOTE
Cap open fittings immediately to keep
moisture out of the system.

9) Remove compressor mounting bolts (1), and then remove compressor (2 ) from its bracket.
Installation
Reverse removal procedure noting the following
instructions.
• If compressor is replaced, pour new compressor oil referring to “Replenishi ng Compressor Oil” in
“Operation Procedure for Refrigerant Charge”.
• Evacuate and charge the A/C system referring to “Evacuation” and “Charge” in “Operation Procedure
for Refrigerant Charge”.
• Adjust drive belt tension referring to “Compressor Drive Belt Inspecti on and Adjustment”.
I4RS0A720034-01
3
4 2
1
I7RS0A721009-01
1
1 2
I7RS0A721010-02