2007 ISUZU KB P190 air conditioning

0A-2 GENERAL INFORMATION
GENERAL REPAIR INSTRUCTIONS
1. Park the vehicle on level ground and chock the front or rear wheels before lifting the vehicle.
2. Raise the vehicle with a jack set against the axle or the frame.
3. Support the vehicle on chassis stands.
4. Use covers on the vehicle body, seats, and floor to prevent damage and/or contamination.
5. Disconnect the grounding cable from the battery before performing service operations.
This will prevent cable damage or burning due to short circuiting.
6. Handle brake fluid and antifreeze solution with great care.
Spilling these liquids on painted surfaces will damage the paint.
7. The use of the proper tool(s) and special tool(s) where specified is essential to efficient, reliable, and safe
service operations.
8. Always use genuine ISUZU replacement parts.
9. Discard used cotter pins, gaskets, O-rings, oil seals, lock washers, and self-locking nuts at disassembly.
Normal function of these parts cannot be guaranteed if they are reused.
10. Prepare new cotter pins, gaskets, O-rings, oil seals, lock washers, and self-locking nuts for installation.
11. Keep the disassembled parts neatly in groups. This will facilitate smooth and correct reassembly.
12. Keep fixing nuts and bolts separate. Fixing nuts and bolts vary in hardness and design according to installation position.
13. Clean all parts before inspection or reassembly.
14. Clean the oil ports and other openings with compressed air to make certain that they are free from dirt and obstructions.
15. Lubricate the rotating and sliding faces of all moving parts with oil or grease before installation.
16. Use the recommended liquid gasket to prevent leakage.
17. Carefully observe all nut and bolt torque specifications.
18. W hen removing or replacing parts that require refrigerant to the discharged from the air conditioning system, be sure to use the Vehicle Refrigerant Recovery and Recycling Equipment (VRRRE) to recover and recycle R134a,
to promote the aim of the protection of the ozone layer covering the earth.
19. Check and recheck your work. No service operation is complete until you have done this.


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ISUZU KB P190 2007

HEATER AND AIR CONDITIONING 1-1
SECTION 1
HEATER AND AIR CONDITIONING
TABLE OF CONTENTS
PAGE
General Description ........................................................................................................ 1- 3
Main Data and Specifications ......................................................................................... 1- 21
Special Parts Fixing Nuts and Bolts .............................................................................. 1- 23
On-Vehicle Service .......................................................................................................... 1- 30
Precautions For Replacement or repair of air conditioning parts .......................... 1- 30
Condenser...................................................................................................................... .. 1- 40
Removal and Installation (4JH1-TC, 4JJ1-TC Standard Output)............................. 1- 40
Removal and Installation (4JJ1-TC High Output, 4JK1-TC High Output, 4JA1-T) ........................................ 1- 41
Removal and Installation (C24SE) ............................................................................. 1- 42
Condenser Fan Motor ..................................................................................................... 1- 43 Removal and Installation............................................................................................ 1- 43
Receiver/drier ................................................................................................................. . 1- 44
Removal and Installation............................................................................................ 1- 44
Compressor ..................................................................................................................... 1- 45
Removal and Installation (4JA1-T, 4JH1-TC) ............................................................ 1- 45
Removal and Installation (4JJ1-TC Standard Output, 4JJ1-TC High Output, 4JK1-TC High Output) ......... 1- 47
Removal and Installation (C24SE) ............................................................................. 1- 49
Disassembly ................................................................................................................ 1- 55
Reassembly ................................................................................................................. 1- 57
Heater Unit .................................................................................................................... ... 1- 59
Removal and Installation............................................................................................ 1- 59
Disassembly and Reassembly................................................................................... 1- 61
Vent Unit (Without Heater) ............................................................................................. 1- 62 Removal and Installation............................................................................................ 1- 62
Disassembly and Reassembly................................................................................... 1- 64
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ISUZU KB P190 2007

1-2 HEATER AND AIR CONDITIONING
PAGE
Evaporator (With A/C) ..................................................................................................... 1- 6 5
Removal and Installation............................................................................................ 1- 65
Disassembly and Reassembly................................................................................... 1- 66
Duct (Without A/C) ........................................................................................................... 1 - 68
Removal and Installation............................................................................................ 1- 68
Disassembly and Reassembly................................................................................... 1- 69
Blower Unit Assembly..................................................................................................... 1- 70
Removal and Installation............................................................................................ 1- 70
Disassembly and Reassembly................................................................................... 1- 72
Defroster Nozzle and Vent Duct ..................................................................................... 1- 73 Removal and Installation............................................................................................ 1- 73
Rear Heater Duct ............................................................................................................. 1 - 74
Removal and Installation............................................................................................ 1- 74
Control Lever Assembly ................................................................................................. 1- 75 Removal and Installation............................................................................................ 1- 75
Control Panel Illumination Bulb ..................................................................................... 1- 79 Removal and Installation............................................................................................ 1- 79
Inspection and Repair ................................................................................................ 1- 81
Troubleshooting .............................................................................................................. 1 - 85
Special Service Tool........................................................................................................ 1- 119


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ISUZU KB P190 2007

HEATER AND AIR CONDITIONING 1-3
GENERAL DESCRIPTION
COOLING SYSTEM









1.
Compressor 8.
Evaporator core
2.
Magnetic clutch 9.
Blower motor
3.
Receiver/Drier 10.
Heater unit
4.
Triple pressure switch 11.
Mode (DEF/FOOT) control door
5.
Condenser 12.
Mode (VENT) control door
6.
Evaporator assembly 13.
Electronic thermostat
7.
Expansion valve 14.
Heater core



RTW 610LF000101

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ISUZU KB P190 2007

1-4 HEATER AND AIR CONDITIONING
COMPONENTS (CHASSIS SIDE)
(4JA1-T RHD MODEL)






RTW 710LF001901


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ISUZU KB P190 2007

HEATER AND AIR CONDITIONING 1-5

(4JJ1-TC Standard Output, 4JJ1-TC High Output, 4JK1-TC High Output RHD MODEL)


RTW 710LF002001


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ISUZU KB P190 2007

1-6 HEATER AND AIR CONDITIONING

(C24SE RHD MODEL)







RTW 710LF002101


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ISUZU KB P190 2007

HEATER AND AIR CONDITIONING 1-7

(4JA1-T, 4JH1-TC LHD MODEL)


RTW 710LF002201



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ISUZU KB P190 2007