refrigerant type SUZUKI JIMNY 2005 3.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine AIR CONDITIONING (OPTIONAL) 1B-1
6F1
6F2
1B
7A
7A1
7B1
7C1
7D
7E
7F
8A
8B
8C
8D
8E
9
10
10A
10B
SECTION 1B
AIR CONDITIONING (OPTIONAL)
CONTENTS
General Description ....................................... 1B-3
Major Components and Location ................. 1B-3
Refrigerant Circulation ................................. 1B-4
Refrigerant Type .......................................... 1B-4
Diagnosis ........................................................ 1B-5
General Diagnosis Table .............................. 1B-5
Abnormal Noise Diagnosis ........................... 1B-7
Abnormal noise from compressor ............ 1B-7
Abnormal noise from magnetic clutch ...... 1B-7
Abnormal noise from tubing ..................... 1B-7
Abnormal noise from condenser .............. 1B-7
Abnormal noise from crankshaft pulley .... 1B-8
Abnormal noise from tension pulley ......... 1B-8
Abnormal noise from A/C evaporator ....... 1B-8
Abnormal noise from blower fan motor .... 1B-8
Quick Checking of Refrigerant Charge......... 1B-9Performance Diagnosis.............................. 1B-10
Performance diagnosis table.................. 1B-12
Detail diagnosis table (Ambient
temperature at 30°C (86°F)) .................. 1B-13
Compressor Drive Belt ............................... 1B-15
Electronical Diagnosis ................................ 1B-16
Wiring Diagram .......................................... 1B-16
A/C System Inspection of ECM and ITS
Circuits ....................................................... 1B-17
Refrigerant Recovery, Evacuating and
Charging ....................................................... 1B-21
Operation Procedure for Refrigerant
Charging .................................................... 1B-21
Recovery .................................................... 1B-22
Replenishing Compressor Oil .................... 1B-22 WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System:
 Service on and around the air bag system components or wiring must be performed only by an
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in air bag system section in order to confirm whether you are performing ser-
vice on or near the air bag system components or wiring. Please observe all WARNINGS and “Ser-
vice Precautions” under “On-Vehicle Service” in air bag system section before performing service
on or around the air bag system components or wiring. Failure to follow WARNINGS could result in
unintentional activation of the system or could render the system inoperative. Either of these two
conditions may result in severe injury.
 Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system
may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
CAUTION:
The air conditioning system of this vehicle uses refrigerant HFC-134a (R-134a).
None of refrigerant, compressor oil and component parts is interchangeable between two types of
A/C: one using refrigerant HFC-134a (R-134a) and the other using refrigerant CFC-12 (R-12).
Be sure to check which refrigerant is used before any service work including inspection and mainte-
nance. For identification between these two types, refer to “Refrigerant Type” in this section.
When replenishing or changing refrigerant and compressor oil and when replacing parts, make sure
that the material or the part to be used is appropriate to the A/C installed in the vehicle being serviced.
Use of incorrect one will result in leakage of refrigerant, damage in parts or other faulty condition.
NOTE:
For basic servicing method of the air conditioning system that is not described in this section, refer to
AIR CONDITIONING BASIC MANUAL (Part number: 99520-02130).

Downloaded from www.Manualslib.com manuals search engine 1B-2 AIR CONDITIONING (OPTIONAL)
Evacuating ................................................. 1B-23
Evacuating procedure ............................ 1B-23
Charging .................................................... 1B-25
Charging procedure ............................... 1B-25
Removing Manifold Gauge Set .................. 1B-28
Leak Test ................................................... 1B-28
On-Vehicle Service ...................................... 1B-29
Service Precaution ..................................... 1B-29
Refrigerant line ....................................... 1B-29
Handling refrigerant HFC-134a
(R-134a) ................................................. 1B-30
Condenser Assembly ................................. 1B-31
Receiver / Dryer ......................................... 1B-32
Condenser Cooling Fan Assembly ............ 1B-33Cooling Unit (Evaporator) .......................... 1B-34
A/C Evaporator Thermistor (A/C Evaporator
Temperature Sensor)................................. 1B-37
Expansion Valve ........................................ 1B-37
Dual Pressure Switch ................................ 1B-38
A/C Switch ................................................. 1B-39
Condenser Cooling Fan Motor Relay ........ 1B-39
Compressor ............................................... 1B-39
Magnet Clutch............................................ 1B-41
Lip Type Seal ............................................. 1B-45
Tightening Torque Specification................ 1B-46
Required Service Materials ......................... 1B-47
Special Tools ............................................... 1B-47

Downloaded from www.Manualslib.com manuals search engine 1B-4 AIR CONDITIONING (OPTIONAL)
Refrigerant Circulation
Refrigerant Type
Whether the A/C in the vehicle being serviced uses HFC-134a
(R-134a) or CFC-12 (R-12) is indicated on compressor label (1).
Also, it can be checked by the shape of the service (charge) valve
(2).
A: Liquid 1. Compressor 4. Receiver / dryer 7. Evaporator
B: Vapor 2. Magnet clutch 5. Dual pressure switch
C: Superheated vapor 3. Condenser assembly 6. Expansion valve

Downloaded from www.Manualslib.com manuals search engine AIR CONDITIONING (OPTIONAL) 1B-7
Abnormal Noise Diagnosis
There are various types of noise, ranging from those produced in the engine compartment to those from the
passenger compartment, also from rumbling noises to whistling noises.
Abnormal noise from compressor
Abnormal noise from magnetic clutch
Abnormal noise from tubing
Abnormal noise from condenser
Condition Possible Cause Correction
During compressor
operation, a rumbling
noise is heard propor-
tional to engine revo-
lutions.Inadequate clearance in piston area (piston or
swash-plate).Repair or replace compressor as
necessary
A loud noise is heard
at a certain rpm, dis-
proportionately to
engine revolution.Loose or faulty compressor drive belt. Adjust drive belt tension, or replace
belt.
Loose compressor mounting bolts. Retighten mounting bolts.
A loud rattle is heard
at low engine rpm.Loose compressor clutch plate bolt. Retighten clutch plate bolt.
Replace compressor if it was oper-
ated in this condition for a long
time.
Condition Possible Cause Correction
A rumbling noise is
heard when compres-
sor is not operating.Worn or damaged bearings. Replace magnet clutch assembly.
A chattering noise is
heard when compres-
sor is engaged.Faulty clutch clearance (excessive). Adjust clutch clearance.
Worn clutch friction surface. Replace magnet clutch assembly.
Compressor oil leaked from lip type seal. Replace lip type seal.
Contaminating the friction surface. Replace compressor body assem-
bly.
Condition Possible Cause Correction
A droning noise is
heard inside vehicle,
but not particularly
noticeable in engine
compartment.Faulty tubing clamps. Reposition clamps or increase the
number of clamps.
Resonance caused by pulsation from variations
in refrigerant pressure.Attach a silencer to tubing, or mod-
ify its position and length.
Condition Possible Cause Correction
Considerable vibra-
tion in condenser.Resonance from condenser bracket and body. Firmly insert a silencer between
condenser bracket and body.

Downloaded from www.Manualslib.com manuals search engine 1B-28 AIR CONDITIONING (OPTIONAL)
Removing Manifold Gauge Set
When A/C system has been charged with a 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 rapidly.
5) Put caps on service valves.
Leak Test
Whenever a refrigerant leak is suspected in the system or any
service operation has been performed which may result in dis-
turbing lines or connections, it is advisable to test for leaks.
Common sense should be used in performing any 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
There are a number of fittings and places throughout the air con-
ditioning 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 con-
denser, an electronic (refrigerant) leak detector (1) is more practi-
cal for determining leaks.WARNING:
High pressure side is naturally under high pressure. So,
care must be used to protect your eyes and skin.

Downloaded from www.Manualslib.com manuals search engine 1B-30 AIR CONDITIONING (OPTIONAL)
Handling refrigerant HFC-134a (R-134a)
Always wear goggles to protect your eyes.
Avoid you direct contact to liquid refrigerant.
Do not heat refrigerant container higher than 40 °C (104 °F).
Do not discharge refrigerant into atmosphere.
Do not allow liquid refrigerant to touch bright metals. Refrigerant combined with moisture is corrosive and
will tarnish surfaces of bright metals including chrome. WARNING:
Should refrigerant HFC-134a (R-134a) strike your eye(s), consult a doctor immediately.
 Do not use your hand to rub affected eye(s). Instead, use quantities of fresh cold water to splash it
over affected area to thus gradually raise its temperature above the freezing point.
 Obtain proper treatment as soon as possible from a doctor or eye specialist.
Should liquid refrigerant HFC-134a (R-134a) get on your skin, such affected part should be treated
in the same manner as when skin is frostbitten or frozen.
CAUTION:
The air conditioning system of this vehicle uses refrigerant HFC-134a (R-134a).
None of refrigerant, compressor oil and component parts is interchangeable between two types of
A/C: one using refrigerant HFC-134a (R-134a) and the other using refrigerant CFC-12 (R-12).
Be sure to check which refrigerant is used before any service work including inspection and mainte-
nance. For identification between these two types, refer to “Refrigerant Type” in this section. When
replenishing or changing refrigerant and compressor oil and when replacing parts, make sure that the
material or the part to be used is appropriate to the A/C installed in the vehicle being service.Use of
incorrect one will result in leakage of refrigerant, damage in parts or other faulty condition.

Downloaded from www.Manualslib.com manuals search engine 1B-46 AIR CONDITIONING (OPTIONAL)
2) Coat special tool surface with compressor oil and place it on
compressor shaft (1).
Special tool
(A) : 09991-06040
3) Install O-ring (1) to compressor body assembly (2).
4) Apply compressor oil to lip type seal and O-ring (1).
5) Install front head (3) to compressor body assembly (2).
Special tool
(A) : 09991-06040
6) Tighten new front head bolts to specified toque.
Tightening torque
Front heat bolts
(a) : 14 N·m (1.4 kg-m, 10.5 lb-ft)
(b) : 23 N·m (2.3 kg-m, 17.0 lb-ft)
Tightening Torque Specification
NOTE:
Tighten bolt (a) first, and next (b).
Fastening partTightening torque
Nm kg-m lb-ft
Tension pulley bolt (for vehicle with P/S) 25 2.5 18.0
Refrigerant 8 mm pipe (0.31 in.) 13 1.3 9.5
Refrigerant 12 mm pipe (0.47 in.) 23 2.3 16.6
Refrigerant 14.5 mm pipe (0.57 in.) 33 3.3 23.8
Dual pressure switch 10 1.0 7.0
Clutch plate bolt 14 1.4 10.5
Front head bolt (5 mm) 14 1.4 10.5
Front head bolt (8 mm) 23 2.3 16.6

Downloaded from www.Manualslib.com manuals search engine AIR CONDITIONING (OPTIONAL) 1B-47
Required Service Materials
Special Tools
MaterialRecommended SUZUKI product
(Part Number)Use
Compressor oil
(Refrigerant oil)COMPRESSOR OIL RS20 (150 cc)
99000-99088-00D0O-ring
Each component
09900-06107 09991-06010 09991-06020 09991-06030
Snap ring pliers
(Open type)Magnet clutch pulley
installerArmature plate spanner Armature plate remover
09991-06040 09991-06050
Lip type seal protector Lip type seal installer

Downloaded from www.Manualslib.com manuals search engine ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-117
Table B-5 A/C Signal Circuits Check (Vehicle with A/C)
1. A/C compressor magnet clutch 4. A/C condenser fan 7. Evaporator temp. sensor
2. A/C switch 5. Refrigerant pressure switch [A] : Case of TYPE A is shown (See NOTE)
3. Blower fan 6. ECT sensor [B] : Case of TYPE B is shown (See NOTE)
NOTE:
For TYPE A and TYPE B, refer to the NOTE in “ECM Terminal Voltage Values Table” for applicable
model.