Infiniti G37 Coupe. Manual — part 755
INSPECTION AND ADJUSTMENT
HAC-9
< BASIC INSPECTION >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
3.
Press each mode switch as desired.
NOTE:
When battery cable is disconnected or battery voltage is below 10 V, trimmer operation is canceled. Wind dis-
tribution ratio set becomes that of initial condition.
WITHOUT LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CON-
TROL SYSTEM : Inlet Port Memory Function
INFOID:0000000001733707
DESCRIPTION
When ignition switch is turned from OFF to ON, inlet port can be set to AUTO or manual.
Operating procedures for this trimmer are as per the following:
1.
Begin self-diagnosis STEP-5 mode. Refer to
HAC-42, "WITHOUT LEFT AND RIGHT VENTILATION
TEMPERATURE SEPARATELY CONTROL SYSTEM : Diagnosis Description"
2.
Turn fan control dial clockwise to set system in auxiliary mode.
3.
Press intake switch as desired.
NOTE:
When battery cable is disconnected or battery voltage is below 10 V, memory function is canceled. Memory
function set becomes that of initial condition.
WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CON-
TROL SYSTEM
WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL
SYSTEM : Description & Inspection
INFOID:0000000001675664
DESCRIPTION
The purpose of the operational check is to check that the individual system operates normally.
INSPECTION PROCEDURE
JSIIA0864GB
LED status of
FRE position
LED status of
REC position
Setting status
Setting changeover
method
FRE
REC
OFF
ON
AUTO control (Initial setting)
Manual REC status is memorized.
(Initial setting)
Intake switch: ON
ON
ON
Manual FRE status is memorized.
Manual REC status is memorized.
ON
OFF
Manual FRE status is memorized.
AUTO control
OFF
OFF
AUTO control
AUTO control
Conditions
: Engine running at normal operating temperature
HAC-10
< BASIC INSPECTION >
[AUTOMATIC AIR CONDITIONER]
INSPECTION AND ADJUSTMENT
Memory Function
1.
Turn temperature control dial (driver side) clockwise until 32
°
C (90
°
F) is displayed.
2.
Press OFF switch.
3.
Turn ignition switch OFF.
4.
Turn ignition switch ON.
5.
Press AUTO switch.
6.
Confirm that the set temperature remains at previous temperature.
7.
Press OFF switch.
If NG, go to trouble diagnosis procedure for
HAC-138, "Inspection procedure"
If OK, continue the check.
Blower
1.
Press fan (UP:+) switch. Blower should operate on low speed. The fan symbol should have one blade lit.
2.
Press fan (UP:+) switch again, and continue checking blower speed and fan symbol until all speeds are
checked.
3.
Leave blower on max. speed.
If NG, go to trouble diagnosis procedure for
HAC-81, "WITH LEFT AND RIGHT VENTILATION TEMPERA-
TURE SEPARATELY CONTROL SYSTEM : Diagnosis Procedure"
.
If OK, continue the check.
Discharge Air
1.
Press MODE switch and DEF switch.
2.
Each position indicator should change shape.
3.
Confirm that discharge air comes out according to the air distribution table. Refer to
AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL SYSTEM : System Description"
.
If NG, go to trouble diagnosis procedure for
.
If OK, continue the check.
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and intake door position is at FRE
when the D/F or DEF is selected.
Intake Air
1.
Press intake switch. Recirculation indicator should illuminate.
2.
Press intake switch again. Fresh indicator should illuminate.
3.
Listen for intake door position change. (Slight change of blower sound can be heard.)
If NG, go to trouble diagnosis procedure for
.
If OK, continue the check.
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and intake door position is at FRE
when the D/F or DEF is selected.
Temperature Decrease
JSIIA0866GB
INSPECTION AND ADJUSTMENT
HAC-11
< BASIC INSPECTION >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
1.
Turn temperature control dial (driver side) counterclockwise until 18
°
C (60
°
F) is displayed.
2.
Check for cold air at discharge air outlets.
If NG, go to trouble diagnosis procedure for
HAC-130, "Inspection procedure"
If OK, continue the check.
Temperature Increase
1.
Turn temperature control dial (driver side) clockwise until 32
°
C (90
°
F) is displayed.
2.
Check for warm air at discharge air outlets.
If NG, go to trouble diagnosis procedure for
HAC-133, "Inspection procedure"
If OK, continue the check.
A/C Switch
1.
Press AUTO switch and A/C switch.
2.
A/C switch indicator will turn ON.
• Confirm that the compressor clutch engages (sound or visual inspection).
Auto Mode
1.
Press AUTO switch and A/C switch.
2.
Display should indicate AUTO.
• Confirm that discharge air and blower speed depend on ambient, in-vehicle, and set temperatures.
If NG, go to trouble diagnosis procedure for
HAC-101, "Diagnosis Procedure"
, then if necessary, trouble diag-
nosis procedure for
.
Go to Incident Simulation Tests in
and perform tests as outlined to simulate driving condi-
tions environment if all operational checks are OK (symptom cannot be duplicated). Refer to
and perform applicable trouble diagnosis procedures if symptom appears.
WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL
SYSTEM : Temperature Setting Trimmer
INFOID:0000000001733713
DESCRIPTION
The trimmer compensates for differences in range of
±
3
°
C (
±
6
°
F) between temperature setting (displayed dig-
itally) and temperature felt by customer.
Operating procedures for this trimmer are as per the following:
1.
Begin self-diagnosis STEP-5 mode. Refer to
HAC-48, "WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM : Diagnosis Description"
2.
Press fan (UP: +) switch to set system in auxiliary mode.
3.
Display shows “61” in auxiliary mechanism. It takes approximately 3 seconds to enable setting operation.
4.
Turn temperature control dial (driver side) as desired. Temperature will change at a rate of 0.5
°
C (1.0
°
F)
each time a dial is turned.
CAUTION:
• A decimal point is not indicated on the display.
HAC-12
< BASIC INSPECTION >
[AUTOMATIC AIR CONDITIONER]
INSPECTION AND ADJUSTMENT
• Negative value is not displayed on the display.
NOTE:
When battery cable is disconnected or battery voltage is below 10 V, trimmer operation is canceled. Tempera-
ture set becomes that of initial condition, i.e. 0
°
C (0
°
F).
WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL
SYSTEM : Foot Position Setting Trimmer
INFOID:0000000001733714
DESCRIPTION
Wind distribution ratio in FOOT mode can be set.
Operating procedures for this trimmer are as per the following:
1.
Begin self-diagnosis STEP-5 mode. Refer to
HAC-48, "WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM : Diagnosis Description"
2.
Press fan (UP:+) switch to set system in auxiliary mode.
JSIIA0013GB
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