heater ISUZU TF SERIES 2004 Workshop Manual

HEATER AND AIR CONDITIONING 1-67
DISASSEMBLY AND REASSEMBLY





This illustration is based on RHD model



Disassembly Steps
1. Attaching screw
2. Intake link
3. Intake lever
4. Intake packing
5. Attaching screws
6. Blower motor assembly
7. Attaching screw
8. Flat resistor
9. Upper case
10. Lower case
11. Mode door
12. Bell mouth
13. Control cable clamp
Reassembly Steps
13. Control cable clamp
12. Bell mouth
11. Mode door
10. Lower case
9. Upper case
8. Flat resistor
7. Attaching screw
6. Blower motor assembly
5. Attaching screws
4. Intake packing
3. Intake lever
2. Intake link
1. Attaching screw

1-68 HEATER AND AIR CONDITIONING
DEFROSTER NOZZLE AND VENT DUCT
REMOVAL AND INSTALLATION


This illustration is based on RHD model



Removal Steps

1. Instrument panel assembly and cross
beam
2. Side def hose R/LH
3. Defroster nozzle
4. Vent duct driver side and assist side
5. Center vent duct

Installation Steps
5. Center vent duct
4. Vent duct driver side and assist side
3. Defroster nozzle
2. Side def hose R/LH
1. Instrument panel assembly and cross beam






Important Operation - Removal
1. Instrument Panel Assembly and Cross Beam
Refer to “INSTRUMENT PANEL ” in CAB section.

HEATER AND AIR CONDITIONING 1-69
REAR HEATER DUCT
REMOVAL AND INSTALLATION


This illustration is based on RHD model
RTW410LF001301

Disassembly Steps
1. Front seat assembly (RH/LH)
 Refer to SECTION 10 “FRONT SEAT”
2. Rear floor console

Refer to SECTION 10 “FLOOR
CONSOLE”
3. Front floor console (A/T, M/T Model)

Refer to SECTION 10 “FLOOR
CONSOLE”
4. Sill plate (RH/LH)
 Refer to SECTION 10 “INTERIOR
TRIM PANELS”
5. Dash side trim cover (RH/LH)
6. Carpet
7. Clip
8. Rear Heater duct (RH/LH)
9. Rear Heater duct center

Reassembly Steps
9. Rear heater duct center
8. Rear heater duct (RH/LH)
7. Clip
6. Carpet
5. Dash side trim cover (RH/LH)
4. Sill plate (RH/LH)

Refer to SECTION 10 “INTERIOR
TRIM PANELS”
3. Front floor console (A/T, M/T Model)
 Refer to SECTION 10 “FLOOR
CONSOLE”
2. Rear floor console

Refer to SECTION 10 “FLOOR
CONSOLE”
1. Front seat assembly (RH/LH)

Refer to SECTION 10 “FRONT SEAT”

1-70 HEATER AND AIR CONDITIONING
CONTROL LEVER ASSEMBLY
REMOVAL AND INSTALLATION


This illustration is based on RHD model
RTW310MF000601

Removal Steps
1. Glove box

2. Instrument panel driver lower cover
3. Ash tray

4. Control cables

5. Center cluster
6. Attaching screw
7. A/C switch connector
8. Fan switch connector
9. Control lever assembly

Installation Steps


9. Control lever assembly
8. Fan switch connector
7. A/C switch connector
6. Attaching screw
5. Center cluster

4. Control cables
3. Ash tray
2. Instrument panel driver lower cover
1. Glove box

HEATER AND AIR CONDITIONING 1-71
Important Operation - Removal
2. Instrument Panel Driver Lower Cover
Refer to “INSTRUMENT PANEL” in CAB section.


RTW310SH000101

4. Control Cables
Disconnect control cables at each unit side.


5. Center Cluster
Refer to “INSTRUMENT PANEL” in CAB section.

1-72 HEATER AND AIR CONDITIONING













Important Operation - Installation
9. Control Lever Assembly
Air source control cable
RHD
1) Slide the control lever to the left (“CIRC” position).
2) Connect the control cable at the "CIRC" position of the link
unit of blower assembly and fix it with the clip.
LHD
1) Slide the control lever to the right (“FRESH” position).
2) Connect the control cable at the "FRESH" position of the
link unit of blower assembly and fix it with the clip.

Temperature control cable
RHD
1) Turn the control knob to the right (“FULL HOT” position).
2) Connect the control cable at the “FULL HOT” position of the
mix lever of the heater unit and fix it with the clip.
LHD
1) Turn the control knob to the left (“FULL COLD” position).
2) Connect the control cable at the “FULL COLD”position o
f
the mix lever of the heater unit and fix it with the clip.

Air select control cable
RHD
1) Turn the control knob to the left (“VENT” position).
2) Connect the control cable at the “VENT” position of the
mode control link of the heater unit and fix it with the clip.
LHD
1) Turn the control knob to the right (“DEF” position).
2) Connect the control cable at the “DEF” position of the mode
control link of the heater unit and fix it with the clip.

4. Control Cables
Check control cable operation

HEATER AND AIR CONDITIONING 1-73

RTW410MF000201

1-74 HEATER AND AIR CONDITIONING
CONTROL PANEL ILLUMINATION BULB
REMOVAL AND INSTALLATION

This illustration is based on RHD model
RTW410MF000601

Removal Steps

1. Control lever assembly

2. Illumination bulb

Installation Steps
2. Illumination bulb
1. Control lever assembly

HEATER AND AIR CONDITIONING 1-75
Important Operation - Removal
1. Control lever assembly
Refer to “CONTROL LEVER ASSEMBLY” in this section.

2. Illumination Bulb
To remove the illumination bulb, insert an ordinary screwdriver
into the slot (B) at the back of the bulb. Turn the bulb
counterclockwise and pull it free.

1-76 HEATER AND AIR CONDITIONING
INSPECTION AND REPAIR



840R300005-X

Resistor
As for air-conditioning model, fixed on left (RHD) / right (LHD)
side of the evaporator unit.
As for heater only model, fixed on left (RHD) / right (LHD) side
of the duct placed between blower unit and heater unit.
Replace the resistor with a new on if the coil is found to be
open or if the resistance value deviates from the specified
range.




Terminal Resistance
3 – 2 1.99


3 – 4 0.9


3 – 1 0.17




Blower motor
Check blower motor for smooth rotation.
Connect the battery positive terminal to the No.1 terminal of the
blower motor and negative to the No.2.
Be sure to check to see if the blower motor operates correctly.