2005 SUZUKI JIMNY Pressure switch

Downloaded from www.Manualslib.com manuals search engine 0A-22 GENERAL INFORMATION
LLH
LSPVLeft Hand
Load Sensing Proportioning Valve
TTBI
TCC
TCM
TP Sensor
TVV
TWC
2WDThrottle Body Fuel Injection
(Single-Point Fuel Injection, SPI)
Torque Converter Clutch
Transmission Control Module
(A/T Controller, A/T Control Mod-
ule)
Throttle Position Sensor
Thermal Vacuum Valve
(Thermal Vacuum Switching Valve,
TVSV, Bimetal Vacuum Switching
Valve, BVSV)
Three Way Catalytic Converter
(Three Way Catalyst)
2 Wheel Drive MMAF Sensor
MAP Sensor
Max
MFI
Min
MIL
M/TMass Air Flow Sensor
(Air Flow Sensor, AFS, Air Flow
Meter, AFM)
Manifold Absolute Pressure
Sensor (Pressure Sensor, PS)
Maximum
Multiport Fuel Injection
(Multipoint Fuel Injection)
Minimum
Malfunction Indicator Lamp
(“CHECK ENGINE” Light)
Manual Transmission
N NOx Nitrogen Oxides VVIN
VSSVehicle Identification Number
Vehicle Speed Sensor
OOBD
O/D
OHCOn-Board Diagnostic System
(Self-Diagnosis Function)
Overdrive
Over Head CamshaftWWU-OC
WU-TWCWarm Up Oxidation Catalytic
Converter
Warm Up Three Way Catalytic
Converter
PPNP
P/S
PSP Switch
PCM
PCVPark/Neutral Position
Power Steering
Power Steering Pressure Switch
(P/S Pressure Switch)
Powertrain Control Module
Positive Crankcase Ventilation
R RH Right Hand
SSAE
SDM
SFI
SOHCSociety of Automotive Engineers
Sensing and Diagnostic Module
(Air bag controller, Air bag control
module)
Sequential Multiport Fuel Injection
Single Over Head Camshaft

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 AIR CONDITIONING (OPTIONAL) 1B-3
General Description
Major Components and Location
1. Cooling unit 6. Suction hose 11. Foot air 16. Heater unit
2. Compressor 7. Receiver / dryer outlet pipe 12. Defroster air 17. A/C evaporator
3. Condenser assembly 8. Condenser outlet pipe 13. Demister air 18. Dual pressure switch
4. Receiver / dryer 9. Expansion valve 14. Fresh air 19. Low pressure service (charge) valve
5. Discharge hose 10. Ventilation air 15. Recirculation air 20. High pressure service (charge) valve

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-5
Diagnosis
General Diagnosis Table
Condition Possible Cause Correction
Cool air won’t come
out (A/C system won’t
operative)No refrigerant Perform recover, evacuation and charging.
Fuse blown Check fuses in main and circuit fuse
boxes, and check short circuit to ground.
A/C switch faulty Check A/C switch.
Blower fan switch faulty Check blower fan switch referring to Sec-
tion 1A.
A/C evaporator thermistor faulty Check A/C evaporator thermistor.
Dual pressure switch faulty Check dual pressure switch.
Wiring or grounding faulty Repair as necessary.
ECT sensor faulty Check ECT sensor referring to Section 6E.
ECM and its circuit faulty Check ECM and its circuit referring to Sec-
tion 6E.
4WD controller faulty Check 4WD controller referring to Section
3D.
Cool air won’t come
out (A/C compressor
won't operative)ECM faulty Check ECM and its circuit referring to Sec-
tion 6E.
Magnet clutch faulty Check magnet clutch.
Compressor drive belt loosen or broken Adjust or replace drive belt.
Compressor faulty Check compressor.
Cool air won’t come
out (A/C condenser
cooling fan motor
won’t operative)Fuse blown Check “A/C” fuse in main fuse box, and
check short circuit to ground.
Wiring or grounding faulty Repair as necessary.
Condenser cooling fan motor relay
faultyCheck condenser cooling fan motor relay.
Condenser cooling fan motor faulty Check condenser cooling fan motor.
Cool air won’t come
out (Blower fan motor
won’t operative)Fuse blown Check fuses in main and circuit fuse
boxes, and check short circuit to ground.
Blower fan motor resistor faulty Check blower fan motor resistor referring
to Section 1A.
Blower fan switch faulty Check blower fan switch referring to Sec-
tion 1A.
Wiring or grounding faulty Repair as necessary.
Blower fan motor faulty Check blower fan motor referring to Sec-
tion 1A.

Downloaded from www.Manualslib.com manuals search engine 1B-10 AIR CONDITIONING (OPTIONAL)
Performance Diagnosis
1) Confirm that vehicle and environmental conditions are as fol-
lows.
Vehicle is not exposed to direct sun.
Ambient temperature is within 15 – 35 °C (59 – 95 °F).
2) Make sure that high pressure valve (1) and low pressure
valve (2) of manifold gauge set (3) are firmly closed.
3) Connect high pressure charging hose (4) to high pressure
service valve (5), and connect low pressure charging hose
(6) to low pressure service valve (7).
4) Bleed the air in charging hoses (4), (6) by loosening their
respective nuts on manifold gauge set (3), utilizing the refrig-
erant pressure. When a hissing sound is heard, immediately
tighten nut.
5) Warm up engine to normal operating temperature (engine
coolant temperature at 80 – 90 °C (176 – 194 °F)) and keep
it at specified idle speed. (Radiator cooling fan should not be
working when checking pressure and temperature.)
6) Turn A/C switch ON, and set blower switch at “HI” (3rd posi-
tion), temperature knob at “COOL” air outlet control knob at
“FACE” and fresh / circulation control knob at “CIRCULA-
TION”. (Confirm that A/C compressor and radiator / con-
denser cooling fan are working.)
Keep all windows, doors and engine food open.
Performance diagnosis condition
7) With dry bulb thermometer (1) inserted into center duct air
outlet and another one set near evaporator air inlet, read
temperature indicated on each thermometer. CAUTION:
Do not interchange high and low pressure charging
hoses by mistake.
Ambient temperature 15 – 35 °C (59 – 95 °F)
Engine rpm Keep to 1,500 rpm.
Blower fan motor switch “H” (3rd position)
Temperature control “Cool”
Air outlet control “Face”
Vehicle doors All open
Air inlet door position Recirculation

Downloaded from www.Manualslib.com manuals search engine AIR CONDITIONING (OPTIONAL) 1B-13
CROSSING POINT OF CENTER VENTILATION LOUVER TEMPERATURE AND RECIRCULATION AIR
INLET TEMPERATURE
Detail diagnosis table (Ambient temperature at 30°C (86°F))
Condition Possible Cause Correction
Crossing point is
higher than accept-
able 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) unitRepair or replace
Compressor malfunction 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 malfunction Check compressor
Condition
Possible Cause Correction MANIFOLD
GAUGEMPa
(kg/cm
2)
(psi)Detail
Lo Hi
0.23 – 0.35
(2.3 – 3.5)
(33 – 50)1.4 – 1.75
(14 – 17.5)
(200 – 249)Normal condition
––
Negative
pressure0.5 – 0.6
(5 – 6)
(71.2 – 85.3)The low pressure side
reads a negative pres-
sure, and the high pres-
sure side reads an
extremely low pressure.
Presence of frost
around tubing to and
from receiver / dryer
and expansion valve.Dust particles or water
droplets are either stuck
or frozen inside expan-
sion valve, preventing the
refrigerant from flowing.Clean expansion valve.
Replace it if it cannot be
cleaned.
Replace receiver / dryer.
Evacuate the A/C sys-
tem and recharge with
fresh refrigerant.
Normal :
0.23 – 0.35
(2.3 – 3.5)
(33 – 50)
↑
↑ ↑ ↑ ↓
↓↓ ↓
Abnormal :
Negative
pressureNormal :
1.4 – 1.75
(14 – 17.5)
(200 – 249)
↑
↑ ↑ ↑ ↓
↓↓ ↓
Abnormal :
0.69 – 0.98
(7 – 10)
(100 – 142)During A/C operation,
the low pressure side
sometimes indicates
negative pressure, and
sometimes normal
pressure. Also high
pressure side reading
fluctuates between the
abnormal and normal
pressure.Expansion valve is frozen
due to moisture in the
system, and temporarily
shuts off the refrigeration
cycle.Replace expansion valve.
Replace receiver / dryer.
Evacuate A/C system
and recharge with fresh
refrigerant.

Downloaded from www.Manualslib.com manuals search engine 1B-16 AIR CONDITIONING (OPTIONAL)
Electronical Diagnosis
Wiring Diagram
[A]: 4WD model 4. Dual pressure switch 9. Thermal switch 14. Circuit fuse box
[B]: 2WD model 5. 4WD controller 10. Ignition switch 15. Main fuse box
1. Blower fan motor 6. Condenser cooling fan motor relay 11. A/C evaporator thermistor 16. Generator
2. Blower fan motor resistor 7. Condenser cooling fan motor 12. ECT sensor 17. ECM
3. Blower fan motor switch and A/C switch 8. Compressor 13. Lighting switch