air condition ISUZU KB P190 2007 Workshop Repair Manual

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

0B-2 MAINTENANCE AND LUBRICATION
MAINTENANCE SCHEDULE (For GENERAL EXPORT)
Items followed by an asterisk (*) require more frequent maintenance if the vehicle is driven under severe conditions.
Replace the fuel filter (**Mark) when the fuel filter indicator light is lit.
Refer to "SEVERE CONDITIONS MAINTENANCE SCHEDULE."

I : Inspect and correct or replace as necessary A : Adjust
R : Replace or change T : Tighten to specified torque L : Lubricate


SERVICE INTERVAL: × 1,000 km 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100(Use odometer reading × 1,000 miles 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60or months whichever
comes first)
or months 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120
ENGINE
Idling speed and acceleration
(GASOLINE) I I - I - I - I - I - I - I - I - I - I (DIESEL) I I I I I I I I I I I I I I I I I I I I * Air cleaner element
(GASOLINE) - I - I - I - R - I - I - I - R - I - I (DIESEL) I I I I I I I R I I I I I I I R I I I I * Engine oil (HFV6) - - R - - R - - R - - R - - R - - R - - (C24SE) Replace every 12,000km (4JH1-TC, 4JJ1 (Standard Output),
4JJ1 (High Output)) - R - R - R - R - R - R - R - R - R - R

(4JA1-T) R R R R R R R R R R R R R R R R R R R R * Engine oil filter (HFV6) - - R - - R - - R - - R - - R - - R - - (C24SE) Replace every 12,000km (4JH1-TC, 4JA1-T) - R - R - R - R - R - R - R - R - R - R (4JJ1 (Standard Output),
4JJ1 (High Output)) - - - R - - - R - - - R - - - R - - - R
Oil leakage and contamination (GASOLINE) - I - I - I - I - I - I - I - I - I - I (DIESEL) I I I I I I I I I I I I I I I I I I I I Fuel leakage
I I - I - I - I - I - I - I - I - I - I Fuel tank - - - I - - - I - - - I - - - I - - - I O2 Sensor (C24SE) Replace every 160,000km (HFV6)
MIL diagnostic Indicates O2 Sensor Valve clearances (6VE1) Check and adjust if noisy (4JH1-TC, 4JA1-T) A - - A - - - A - - - A - - - A - - - A (4JJ1 (Standard Output),
4JJ1 (High Output)) - - - - - - - A - - - - - - - A - - - -
Spark plugs (C24SE) (for leaded fuel
use) - R - R - R - R - R - R - R - R - R - R
Spark plugs (C24SE) (for unleaded
fuel use) - - - - - R - - - - - R - - - - - R - -
Spark plugs
(HFV6) Replace every 120,000km Spark plug wire - - - - - - - - - - - - - - - - - - - I Fuel filter (GASOLINE) - - - R - - - R - - - R - - - R - - - R (4JH1-TC, 4JA1-T) - - R - - R - - R - - R - - R - - R - - ** (4JJ1 (Standard Output),
4JJ1 (High Output)) Replace the fuel filter when the fuel filter indicator light is lit.
Fuel pump in fuel tank
(4JJ1 (Standard Output),
4JJ1 (High Output)) - - - - - - - I - - - - - - - I - - - -
Engine / Accessory drive belt
(C24SE) - - - - - - - - - I - - - - - - - - - I

(HFV6) Replace every 100,000km Fan belt tension and damage
(DIESEL) I I I I I I I I I I I I I I I I I I I I
* Exhaust system
I I - I - I - I - I - I - I - I - I - I Engine coolant concentration (HFV6) - I - I - I - I - I - I - I - I - I - R (C24SE) - I - I - I - I - R - I - I - I - I - R (DESEL) - I - I - I - I - I - I - I - I - I - I Engine coolant
(4JJ1 (Standard Output),
4JJ1 (High Output)) Change every 2 years
Cooling system for water leakage - I - I - I - I - I - I - I - I - I - I All hoses and pipes in engine
compartment for clogs or damage - I - I - I - I - I - I - I - I - I - I
Timing belt
(C24SE) - - - - - - - - - - - - - - - I - - - - Replace every 120,000km Timing belt (6VE1) Replace every 160,000km

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ISUZU KB P190 2007

MAINTENANCE AND LUBRICATION 0B-5
MAINTENANCE SCHEDULE (For EUROPE)
Items followed by an asterisk (*) require more frequent maintenance if the vehicle is driven under severe conditions.
Replace the fuel filter (**Mark) when the fuel filter indicator light is lit.
Refer to "SEVERE CONDITIONS MAINTENANCE SCHEDULE."
Diesel Engine model (ACEA B2 specification engine oil)

I : Inspect and correct or replace as necessary A : Adjust
R : Replace or change T : Tighten to specified torque L : Lubricate

SERVICE INTERVAL: × 1,000 km 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
(Use odometer reading or × 1,000 miles 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60
months whichever comes
first)
or months 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120
DIESEL ENGINE * Engine oil - R - R - R - R - R - R - R - R - R - R* Engine oil filter - - - R - - - R - - - R - - - R - - - ROil leakage and contamination I I I I I I I I I I I I I I I I I I I I Idling speed and acceleration I I I I I I I I I I I I I I I I I I I I Fan belt tension and damage I I I I I I I I I I I I I I I I I I I I Exhaust system I I - I - I - I - I - I - I - I - I - I All hoses and pipes in engine
compartment for clog of damage - I I I I I I I I I I I I I I I I I I I
Valve clearance
- - - A - - - A - - - A - - - A - - - A * Air cleaner element I I I I I I I R I I I I I I I R I I I I ** Fuel filter Replace the fuel filter when the fuel filter indicator light is lit. Engine coolant concentration - I - I - I - I - I - I - I - I - I - I Cooling system for water leakage - I - I - I - I - I - I - I - I - I - I CLUTCH Clutch fluid I I - I - I - I - I - I - I - I - I - I Clutch pedal travel and play I I - I - I - I - I - I - I - I - I - I TRANSMISSION OR TRANSMISSION
W ITH TRANSFER CASE

* Manual transmission with fluid - R - I - - - R - - - I - - - R - - - I * Transfer case oil (MT) - - - I - - - I - - - I - - - I - - - I Oil leakage I I I I I I I I I I I I I I I I I I I I Gear control mechanism for
looseness - - - I - - - I - - - I - - - I - - - I
* Automatic transmission fluid - - - I - - - I - - - I - - - I - - - I * Transfer case oil (AT)
- - - I - - - - - - - I - - - - - - - I PROPELLER SHAFT Loose connections - I - I - I - I - I - I - I - I - I - I * Universal joints and splines for wear - I - I - I - I - I - I - I - I - I - I Universal joints and sliding sleeve (4W D) - L - L - L - L - L - L - L - L - L - L
FRONT AND REAR AXLE * Differential gear oil (Front and rear) - R - I - - - R - - - I - - - R - - - I Oil leakage I I I I I I I I I I I I I I I I I I I I Shift on the fly system gear oil I - - I - - - I - - - I - - - I - - - I
Front axle shaft boot for damage - - - I - - - I - - - I - - - I - - - I Axle case for distortion or damage - - - I - - - I - - - I - - - I - - - I Axle shafts for distortion or damage - - - I - - - I - - - I - - - I - - - I

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ISUZU KB P190 2007

MAINTENANCE AND LUBRICATION 0B-9
SEVERE CONDITIONS MAINTENANCE SCHEDULE (For GENERAL EXPORT)

Severe driving conditions
A : Repeated short trips
C24SE : C24SE Gasoline engine
B : Driving on rough roads
HFV6 : HFV6 Gasoline engine
C : Driving on dusty roads
G : Gasoline engine
D : Driving in extremely cold weather and/or on salted roads
4JA1-T : 4JA1-T Diesel engine
E : Towing trailer or climbing mountain frequently
4JH1-TC : 4JH1-TC Diesel engine
F : Operation in high ambient temperature conditions
4JJ1 (Standard Output):
4JJ1 Standard Output Diesel engine

4JJ1 (High Output): 4JJ1 High Output Diesel engine

D : Diesel engine

MT : Manual transmission

AT : Automatic transmission

4W D : Four wheel drive


Condition
A B C D E F A+D
Engine oil G : Change every 5,000 km (3,000 miles) or 3 month
4JA1-T : Change every 2,500 km (1,500 miles) 4JH1-TC 4JJ1 (Standard Output) 4JJ1 (High Output):

Change every 5,000 km (3,000 miles)




Engine oil filter G : Replace every 5,000 km (3,000 miles) or 3 monthD : Replace every 5,000 km (3,000 miles)



Exhaust pipes and mounting Inspect every 5,000 km (3,000 miles)





Air cleaner element
Replace every 20,000 km (12,000 miles) D : Inspect every 2,500 km (1,500 miles)


Steering system for looseness
or damage Inspect every 5,000 km (3,000 miles)


Universal joints and sleeves Inspect for wear and lubricate every 5,000 km (3,000 miles)




Transmission or transmission
with transfer case oil MTC24SE D Change every 20,000 km (12,000 miles)
after changing at initial 10,000 km (6,000 miles)
MT HFV6 Change every 40,000 km (24,000 miles)

AT Transmission:
Change every 20,000 km (12,000 miles)








4W D Transfer:
Change every 20,000 km (12,000 miles)


Differential oil
Change every 20,000 km (12,000 miles)
after changing at initial 10,000 km (6,000 miles)


Front brake pads and di
scs
wear Inspect every 5,000 km (3,000 miles)




Rear brake lining and drum
wear Inspect every 5,000 km (3,000 miles)





Interval
Item

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0B-10 MAINTENANCE AND LUBRICATION
SEVERE CONDITIONS MAINTENANCE SCHEDULE (For EUROPE)

Severe driving conditions
MT : Manual transmission
A: Repeated short trips
AT : Automatic transmission
B: Driving on rough roads
4W D : Four wheel drive
C: Driving on dusty roads
D: Driving in extremely cold weather and/or on salted roads
E: Towing trailer or climbing mountein frequently

Condition
Item Interval A B C D E A+D
Engine oil Change every 5,000 km (3,000 miles)





Engine oil filter Replace every 5,000 km (3,000 miles)





Exhaust pipes and mounting Inspect every 10,000 km (6,000 miles)





Air cleaner element
Replace every 20,000 km (12,000 miles)



Steering system for looseness or
damage Inspect every 5,000 km (3,000 miles)


Universal joints and sleeves Inspect for wear and lubricate every 10,000 km (6,000 miles)




Transmission or transmission
with transfer case oil MT Change every 30,000 km (18,000 miles)
after changing at initial 10,000 km (6,000 miles)


AT
Transmission:
Inspection every 20,000 km (12,000 miles)







4W D Transfer:
Change every 30,000 km (18,000 miles)
After changing at initial 10,000 km (6,000 miles)


Differential oil
Change every 20,000 km (12,000 miles)
after changing at initial 10,000 km (6,000 miles)


Front brake pads and di
scs wear Inspect every 5, 000 km (3,000 miles)




Rear brake lining and drum wear Inspect every 5,000 km (3,000 miles)







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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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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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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