Suzuki Grand Vitara JB627. Manual — part 288
7B-68 Air Conditioning System:
CAUTION
!
Be careful not to damage A/C evaporator fins. If A/C evaporator fin is bent, straighten it by using flat
head screwdriver or pair of pliers.
HVAC Unit Removal and Installation
S6JB0B7206008
Removal
WARNING
!
Failure to follow the following procedure and
WARNING may cause air bag deployment,
personal injury, damage to parts, or air bag
being unable to deploy.
• Never rest a steering column assembly on
steering wheel with air bag (inflator)
module face down and column vertical.
• When handling the air bag (inflator)
modules (driver and passenger), be careful
not to drop it or apply an impact to it. If an
excessive impact was applied (e.g.,
dropped from a height of 91.4 cm (3 feet) or
more, never attempt disassembly or repair
but replace it with a new one.
• When grease, cleaning agent. Oil, water,
etc. has got onto air bag (inflator) modules
(driver and passenger), wipe off
immediately with a dry cloth.
1) Disconnect negative (–) cable at battery.
2) Disable air bag system referring to “Disabling Air
3) Recover refrigerant from A/C system using recovery
and recycling equipment referring to “Recovery” in
“Operation Procedure for Charging A/C with
Refrigerant”.
4) Drain engine coolant and disconnect heater hoses
(1) from HVAC unit.
5) Disconnect suction hose (2) and condenser outlet
hose (3) by removing attaching bolt (4).
6) Remove instrument panel referring to “Instrument
Panel Removal and Installation in Section 9C”.
7) Disconnect rear duct from HVAC unit.
8) Detach wiring, connectors and clamps from HVAC
unit.
9) Remove HVAC unit (1).
1. Blower upper case
11. Blower motor
21. Inside air temperature sensor
2. Air intake control actuator
12. Blower motor controller
22. Air flow control links
3. Air intake control links
13. Foot duct
23. Air flow control links cover
4. Air filter (if equipped)
14. Aspirator
24. Air flow control actuator
5. Air filter cover
15. Heater core
25. Aspirator hose
6. Air intake control door assembly
16. Heater unit upper case
26. Packing
7. Expansion valve
17. Temperature control door assembly
27. O-ring
8. Evaporator
18. Air flow control door assembly
: Do not reuse.
1
3
2
4
I5JB0A720043-01
1
I5JB0A720044-01
Air Conditioning System: 7B-69
Installation
1) Install HVAC unit by reversing removal procedure,
noting the following items.
• When installing each part, be careful not to catch
any wiring harness.
• Replenish specified amount of compressor oil to
compressor suction side referring to “Precautions
on Replenishing Compressor Oil”.
• Install the padding (1) to the installation hole
uniformly.
• Fill engine coolant to radiator.
• Enable air bag system referring to “Enabling Air
• Evacuate and charge system. Refer to “Operation
Procedure for Charging A/C with Refrigerant”.
A/C Evaporator Removal and Installation
S6JB0B7206009
Removal
1) Remove HVAC unit referring to “HVAC Unit Removal
2) Remove evaporator (1) from HVAC unit by
disassembling HVAC unit.
3) Remove evaporator temperature sensor from
evaporator.
Installation
Reverse removal procedure to install A/C evaporator
nothing the following instructions.
• Install evaporator temperature sensor onto evaporator
referring to “A/C Evaporator Temperature Sensor
Removal and Installation”.
A/C Evaporator Inspection
S6JB0B7206010
1) Check evaporator fins for blockage. If found clogged,
use compressed air to clean the fins.
CAUTION
!
• Do not use water for cleaning of
evaporator.
• Be careful not to damage evaporator fins.
If evaporator fin is bent, straighten it by
using a screwdriver or pair of pliers. If any
leakage is found from fitting or tube, repair
or replace evaporator.
2) Check inlet and outlet fittings for crack or scratch.
Repair them as required.
1
I5JB0A720045-02
7B-70 Air Conditioning System:
A/C Evaporator Temperature Sensor Removal
and Installation
S6JB0B7206011
Removal
1) Remove A/C evaporator (1) referring to “A/C
Evaporator Removal and Installation”.
2) Remove A/C evaporator temperature sensor (2)
from evaporator.
Installation
1) Identify evaporator by the following tables.
NOTE
As for Evaporator, there are 4 varieties
depending on the internal structure.
2) Install evaporator temperature sensor onto
evaporator in a correct position as shown in figure.
CAUTION
!
Mis-position causes insufficiency cooling
and damaged of A/C system.
Evaporator
type
Selection condition
A
LH steering vehicle
Evaporator with
protection rubber (1)
B
Evaporator without
protection rubber (2)
C
RH steering vehicle
Evaporator with
protection rubber
D
Evaporator without
protection rubber
3. Protection rubber
1
2
I5JB0A720046-01
1
2
3
I5GEB4720001-01
[A]: Evaporator type A
5. Holding part fixed to fin of 6th
line from the left-side edge
[B]: Evaporator type B
6. Sensor part fixed to fin of 5th line
from the left-side edge
[C]: Evaporator type C
7. Holding part fixed to fin of 3rd
line from the left-side edge
[D]: Evaporator type D
8. Sensor part fixed to fin of 8th line
from the right-side edge
1. Evaporator temperature
sensor
9. Holding part fixed to fin of 6th
line from the right-side edge
2. Evaporator
10. Sensor part fixed to fin of 5th line
from the right-side edge
3. 34.5 mm (1.36 in.)
11. Holding part fixed to fin of 3rd
line from the right-side edge
4. Sensor part fixed to fin of 8th
line from the left-side edge
4
2
5
6
7
9
8
11
10
3
[A]
[B]
2
3
2
3
[C]
[D]
2
3
1
1
1
1
I5GEB4720002-03
Air Conditioning System: 7B-71
A/C Evaporator Temperature Sensor Inspection
S6JB0B7206012
Check resistance between A/C evaporator temperature
sensor terminals. If check result is not in specification,
replace A/C evaporator temperature sensor with the new
one.
A/C evaporator temperature sensor resistance
11.2 – 11.5 k
Ω at 0 °C (32 °F)
3.8 – 3.9 k
Ω at 25 °C (77 °F)
Expansion Valve On-Vehicle Inspection
S6JB0B7206013
Refer to “A/C System Performance Inspection”.
Expansion Valve Removal and Installation
S6JB0B7206014
Removal
1) Recover refrigerant from the A/C system with
recovery and recycling equipment referring to
“Recovery” in “Operation Procedure for Charging A/
C with Refrigerant”.
2) Loosen a bolt (1) and remove pipes from expansion
valve (2).
3) Loosen bolts (3) and remove expansion valve.
Installation
1) Reverse removal nothing the following instructions.
• Apply compressor oil to O-ring of expansion valve
and pipes.
2) Evacuate and charge system according to
“Operation Procedure for Charging A/C with
Refrigerant”.
1. Expansion valve
(k
Ω
)
11.4
3.9
3.3
0
32
25
77
30
86
(˚C)
(˚F)
Resistance
Temperature
I5JB0A720090-03
IYSQ01720049-01
3
1
2
2
I5JB0A720048-02
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