Infiniti FX35, FX50 (S51). Manual — part 1154
INSPECTION AND ADJUSTMENT
HAC-13
< BASIC INSPECTION >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
3.
Press mode switch as desired.
NOTE:
When battery cable is disconnected or battery voltage is below 10 V, trimmer operation is canceled. Air distri-
bution ratio set becomes that of initial condition.
WITH ACCS : Inlet Port Memory Function
INFOID:0000000005246207
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-62, "WITH ACCS : Diagnosis Description"
.
2.
Press fan (UP: +) switch 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 ACCS : Gas Sensor Sensitivity Adjustment Function
INFOID:0000000005246208
DESCRIPTION
According to customer
′
s sense of smell, gas sensor sensitivity can be changed.
Operating procedures for this trimmer are as follows:
1.
Begin self-diagnosis STEP-5 mode. Refer to
HAC-62, "WITH ACCS : Diagnosis Description"
.
2.
Press fan (UP: +) switch two times to set system in auxiliary mode.
3.
Turn temperature control dial (driver side) as desired for the setting.
JSIIA1209GB
AUTO INTAKE
indicator
REC indicator
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
Display
Setting
71
More sensitive setting than display 72 setting (the change to REC is earlier than display 72 operation.)
72
More sensitive setting than normal setting (the change to REC is earlier than normal operation.)
73 (Initial status)
Normal
HAC-14
< BASIC INSPECTION >
[AUTOMATIC AIR CONDITIONER]
INSPECTION AND ADJUSTMENT
NOTE:
When battery cable is disconnected or battery voltage is below 10 V, Gas sensor sensitivity adjustment func-
tion is canceled. Gas sensor sensitivity adjustment function set becomes that of initial condition.
WITH ACCS : Auto Intake Interlocking Movement Change Function
INFOID:0000000005246209
DESCRIPTION
Conditions for interlocking movement of intake switch (auto intake mode) and A/C switch can be changed. In
addition, operation of the intake switch, which activates the automatic recirculation control system, can be set
to become available when the A/C switch is ON.
Operating procedures for this trimmer are as follows:
1.
Begin self-diagnosis STEP-5 mode. Refer to
HAC-62, "WITH ACCS : Diagnosis Description"
.
2.
Press fan (UP: +) switch three times to set system in auxiliary mode.
3.
Press A/C switch and intake switch as desired.
NOTE:
When battery cable is disconnected or battery voltage is below 10 V, auto intake interlocking movement
change function is canceled. Auto intake interlocking movement change function set becomes that of initial
condition.
74
Less sensitive setting than normal setting (the change to REC is later than normal operation.)
75
Less sensitive setting than display 74 setting (the change to REC is later than display 74 operation.)
Display
Setting
A/C indicator
AUTO IN-
TAKE indicator
Setting status
ON
ON
A/C switch indicator turns ON automatically when auto intake mode is selected with Intake switch.
Auto intake mode continues after A/C switch turns OFF.
OFF
ON
A/C switch indicator stays OFF when auto intake mode is selected with Intake switch.
Auto intake mode continues after A/C switch turns OFF.
ON
OFF
A/C switch indicator turns ON automatically when auto intake mode is selected with Intake switch.
When A/C switch turns OFF, auto intake mode turns OFF automatically.
(Initial setting)
OFF
OFF
Auto intake mode can be set only when A/C switch is ON.
When A/C switch turns OFF, auto intake mode turns OFF automatically.
COMPRESSOR CONTROL FUNCTION
HAC-15
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
SYSTEM DESCRIPTION
COMPRESSOR CONTROL FUNCTION
WITHOUT ACCS
WITHOUT ACCS : Description
INFOID:0000000005246210
PRINCIPLE OF OPERATION
Compressor is not activated.
Functional circuit diagram
Functional initial inspection chart
WITHOUT ACCS : Fail-safe
INFOID:0000000005246211
FAIL-SAFE FUNCTION
CAN(1) : A/C switch signal
: Blower fan motor switch signal
CAN(2) : A/C compressor request signal
JSIIA0918GB
Control unit
Diagnosis Item
Location
A
B
C
D
Unified meter and A/C amp.
Self-diagnosis function
×
–
–
–
ECM
“ENGINE”
Self-diagnosis
(CAN system diagnosis)
–
–
×
–
Data monitor
×
×
×
–
IPDM E/R
“IPDM E/R”
Self-diagnosis
(CAN system diagnosis)
–
–
–
×
Data monitor
–
–
×
–
Auto active test
–
–
–
×
HAC-16
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
COMPRESSOR CONTROL FUNCTION
• If a communication error exists between the unified meter and A/C amp., and preset switch for 30 seconds
or longer, air conditioner is controlled under the following conditions:
WITHOUT ACCS : Component Part Location
INFOID:0000000005246212
ENGINE COMPARTMENT
Compressor
: ON
Air outlet
: AUTO
Air inlet
: FRE (Fresh)
Blower fan speed
: AUTO
Set temperature
: Setting before communication error occurs
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