Suzuki Grand Vitara JB419. Service manual — part 124
Air Conditioning System: 7B-2
Precautions on Replenishing Compressor Oil
S5JB0B7200008
When replacing air conditioning parts with new ones, it is
necessary to replenish oil by the amount supposedly
remaining in each part.
When Charging Refrigerant Only
When charging refrigerant without replacing any
component, replenish the same amount of measured oil
when recovering refrigerant (if not measure, replenish 20
cm
3
(20 cc) oil).
When Replacing Compressor
CAUTION
!
Be sure to use specified compressor oil or an
equivalent compressor oil.
Compressor oil is sealed in each new compressor (1) by
the amount required for air conditioner cycle. Therefore,
when using a new compressor for replacement, drain oil
from it by the amount calculated as follows.
“C” = “A” – “B”
“C”: Amount of oil to be drained
“A”: Amount of oil sealed in a new compressor
“B”: Amount of oil remaining in removed
compressor
NOTE
Compressor assembly supplied from factory
is filled up with the following amount of oil.
: Compressor oil 99000–99022–00E (Compressor oil
(DH-PS, 250cc))
Amount of oil in new compressor
150 (+20, –0) cm
3
(150 (+20, –0) cc)
Amount of compressor oil to be replenished after
part replacement
Evaporator: 50 cm
3
(50 cc)
Condenser: 30 cm
3
(30 cc)
Receiver / dryer: 10 cm
3
(10 cc)
Hoses: 10 cm
3
(10 cc)
Pipes: 10 cm
3
(10 cc)
2. Removed compressor
3. Excess oil (A – B)
I5JB0A720003-01
7B-3 Air Conditioning System:
General Description
A/C Refrigerant Type Description
S5JB0B7201005
Whether the A/C in the vehicle being serviced uses HFC-134a (R-134a) or CFC-12 (R-12) is indicated on LABEL (1)
on the compressor. Also, it can be checked by the shape of the service (charge) valve (2).
Schematic and Routing Diagram
Auto A/C Electronic Control Input / Output Diagram
S5JB0B7202003
[A]: HFC-134a (R-134a)
[B]: CFC-12 (R-12)
I5JB0B720002-02
Sunload sensor
Outside air temperature sensor
Evaporator temperature sensor
A/C refrigerant pressure sensor
Temperature selector
MODE (air flow) selector
Blower speed selector
Air intake selector
AUTO switch
A/C switch
Compressor relay
Blower motor controller
Temperature control actuator
Air flow control actuator
Air intake control actuator
BCM
ECM
Data link connector
HVAC control module
CPU
ECT sensor
Inside air temperature sensor
ABS control module or
ESP® control module
Wheel
speed
sensor
Radiator fan relay
Additional heater relay
*
*
I5JB0B720001-03
*: CAN communication
Air Conditioning System: 7B-4
A/C System Wiring Circuit Diagram
S5JB0B7202001
53
12V
5V
M
12V
M
5V
5V
M
12V
12V
G52-1
G52-2
G52-8
G52-4
G52-15
G52-19
G52-20
12V
M
5V
5V
G52-21
G52-22
G52-23
G52-27
G52-28
G52-31
G52-32
G52-29
G52-30
G52-14
5V
5V
G52-18
G52-12
5V
12V
12V
5V
G52-13
G52-16
12V
5V
5V
12V
+BB
G52-17
G52-3
PPL/RED
WHT
RED/YEL
RED/WHT
WHT/BLK
BLU/BLK
BLK/RED
GRY
GRY/BLU
BLK/RED
WHT/RED
RED/WHT
ORN
GRN
RED/WHT
WHT/GRN
BLK/RED
GRY/RED
GRY/BLK
RED/WHT
WHT/BLU
BLK/RED
PNK
YEL
PPL/WHT
BLK
BLK/RED
RED/BLK
PPL/GRN
G52-10
G52-11
G52-6
G52-5
YEL/RED
PNK/GRN
PNK/BLK
RED/GRN
WHT/BLK
GRY/GRN
GRY/RED
GRY/BLK
M
M
RED/YEL
RED/BLK
BLU/WHT
BLK
WHT/RED
BLK/RED
BLU/BLK
BLU/BLK
YEL/GRN
BLK/RED
WHT/GRN
WHT/GRN
BLU/WHT
BLU/BLK
RED
WHT
WHT/RED
WHT/BLU
BLK/RED
3
2
1
4
17
18
19
40
41
20
37
21
22
23
24
34
34
25
29
30
42
31
38
39
32
33
43
45
35
36
16
26
27
28
5
54
55
6
7
41
44
9
10
11
12
13
14
15
5V
46
RED
BLU
40
BLK/RED
8
RED
PNK
34
WHT/BLU 34
BLU/YEL
YEL/RED
YEL/RED
YEL/BLK
BLU/RED
BLU
RED/BLK
BLU/BLK
47
48
49
50
51
52
YEL/BLK
56
57
BLU/BLK
I5JB0B720003-02
1. Battery
20. Rear defogger
39. To information display
2. Main fuse
21. A/C compressor
40. To ECM
3. Fuse box
22. Blower motor
41. To BCM
4. To radiator fan relay No.1
23. Blower motor selector
42. To compressor relay
5. To radiator fan relay No.3
24. Radiator fan relay No.1
43. To rear defogger relay
7B-5 Air Conditioning System:
6. Ignition switch
25. Radiator fan No.1
44. To combination switch
7. Small lamp relay
26. Radiator fan relay No.2
45. AUTO-ON head light system vehicle
8. Main relay
27. Radiator fan relay No.3
46. Integration relay No.1
9. Evaporator temperature sensor
28. Radiator fan No.2
47. Additional heater relay No.1
10. Inside air temperature sensor
29. ECM
48. Additional heater relay No.2
11. Temperature control actuator
30. Outside temperature sensor
49. Additional heater relay No.3
12. Air intake control actuator
31. ABS or ESP
® control module
50. Additional heater No.1
13. Air flow control actuator
32. BCM
51. Additional heater No.2
14. Sunload sensor
33. Refrigerant pressure sensor
52. Additional heater No.3
15. Data link connector
34. To fuse box
53. To main relay
16. HVAC control module
35. Theft deterrent light
54. To additional heater relay No.1
17. Compressor relay
36. Illumination lamp
55. To additional heater relay No.2 and No.3
18. Rear defogger relay
37. Indicator lamp, switch, selector
56. To ECM, TCM, BCM, ABS or ESP
® control module,
SDM, 4WD control module and Immobilizer control
module (ICM)
19. Blower motor relay
38. To wheel speed sensor
57. To TCM, 4WD control module, keyless start control
module, Immobilizer control module (ICM),
combination meter and steering angle sensor
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