Nissan Quest E52. Instruction — part 739
HAC-86
< BASIC INSPECTION >
[AUTOMATIC AIR CONDITIONING]
SYSTEM SETTING
advanced climate control system is not activated. It is also possible to set the system not to turn A/C switch
ON when AUTO intake switch is pressed.
HOW TO SET
1.
Starts on board self-diagnosis STEP 5 mode (Each sensor recognition temperature check; “51” or “52” is
indicated on front A/C control display).
2.
Press fan switch (up: +) three times and check that “8” is indicated on front A/C control display.
3.
After approximately 3 seconds, the AUTO intake switch interlocking movement change function can be
available.
4.
Press A/C switch or AUTO intake switch to select the setting as per the following.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the AUTO intake switch interlocking movement change function setting may be cancelled.
Switch
Switch in-
dicator
Setting
A/C switch
ON
When AUTO intake switch is turned ON, A/C switch is also turned ON in synchronization with AUTO
intake switch. (Initial setting)
Control of the AUTO intake switch is functional even when the A/C switch is turned OFF.
OFF
When AUTO intake switch is turned ON, A/C switch is not turned ON in synchronization with AUTO
intake switch.
Control of the AUTO intake switch is functional even when A/C switch is turned OFF.
AUTO intake
switch
ON
AUTO intake switch can be turned ON when A/C switch is OFF.
When A/C switch is turned OFF while AUTO intake switch is ON, AUTO intake switch is not turned
OFF in synchronization with A/C switch. (Initial setting)
OFF
AUTO intake switch can not be turned ON when A/C switch is OFF.
When A/C switch is turned OFF while AUTO intake switch is ON, AUTO intake switch is turned OFF
in synchronization with A/C switch.
POWER SUPPLY AND GROUND CIRCUIT
HAC-87
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
A/C AUTO AMP.
A/C AUTO AMP. : Diagnosis Procedure
INFOID:0000000009652546
1.
CHECK SYMPTOM
Check symptom (A or B).
Which symptom is detected?
A
>> GO TO 2.
B
>> GO TO 5.
2.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check 10A fuse (No. 3 and 19, located in fuse block (J/B)].
NOTE:
Refer to
PG-80, "Fuse, Connector and Terminal Arrangement"
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
3.
CHECK A/C AUTO AMP. IGNITION POWER SUPPLY AND ACC POWER SUPPLY
1.
Disconnect A/C auto amp. connector.
2.
Turn ignition switch ON.
3.
Check voltage between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector between A/C auto amp. and fuse.
4.
CHECK A/C AUTO AMP. GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Check continuity between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C auto amp.). Refer to
HAC-143, "Removal and Installation"
Symptom
A
• Front air conditioning does not activate.
• Front air conditioning cannot be controlled.
• Operation status of front air conditioning is not indicated on display.
B
• Memory function does not operate normally.
• The setting is not maintained. (It returns to the initial condition)
+
−
Voltage
A/C auto amp.
Connector
Terminal
M50
2
Ground
11 – 14 V
9
A/C auto amp.
—
Continuity
Connector
Terminal
M50
21
Ground
Existed
23
HAC-88
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
POWER SUPPLY AND GROUND CIRCUIT
NO
>> Repair harness or connector.
5.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check 15A fuse (No. 6, located in fuse block (J/B)].
NOTE:
Refer to
PG-80, "Fuse, Connector and Terminal Arrangement"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
6.
CHECK A/C AUTO AMP. BATTERY POWER SUPPLY
1.
Disconnect A/C auto amp. connector.
2.
Check voltage between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C auto amp.). Refer to
HAC-143, "Removal and Installation"
NO
>> Repair harness or connector between A/C auto amp. and fuse.
REAR A/C CONTROL
REAR A/C CONTROL : Diagnosis Procedure
INFOID:0000000009652547
1.
CHECK REAR A/C CONTROL POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect rear A/C control connector.
3.
Turn ignition switch ON.
4.
Check voltage between rear A/C control harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector between rear A/C control and fuse block (J/B).
2.
CHECK REAR A/C CONTROL GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between rear A/C control harness connector and ground.
Is the inspection result normal?
+
−
Voltage
A/C auto amp.
Connector
Terminal
M50
1
Ground
11 – 14 V
+
−
Voltage
Rear A/C control
Connector
Terminal
R16 (without rear
entertainment)
12
Ground
11 – 14 V
R101 (with rear en-
tertainment)
Rear A/C control
—
Continuity
Connector
Terminal
R16 (without rear
entertainment)
1
Ground
Existed
R101 (with rear en-
tertainment)
POWER SUPPLY AND GROUND CIRCUIT
HAC-89
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
YES
>> Replace rear A/C control. Refer to
HAC-144, "Removal and Installation"
.
NO
>> Repair harness or connector.
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