Nissan Tiida C11. Manual — part 855
HAC-84
< PRECAUTION >
[MANUAL AIR CONDITIONER]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
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The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Procedures Without Cowl Top Cover
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When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Working with HFC-134a (R-134a)
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WARNING:
• CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refrigerant are not compatible. These refrigerants
must never be mixed, even in the smallest amounts. If the refrigerants are mixed a compressor mal-
function is likely to occur.
• Use only specified oil for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) components. If
oil other than that specified is used, compressor malfunction is likely to occur.
• The specified HFC-134a (R-134a) oil rapidly absorbs moisture from the atmosphere. The following
handling precautions must be observed:
- When removing refrigerant components from a vehicle, immediately cap (seal) the component to
minimize the entry of moisture from the atmosphere.
- When installing refrigerant components to a vehicle, do not remove the caps (unseal) until just
before connecting the components. Connect all refrigerant loop components as quickly as possible
to minimize the entry of moisture into system.
- Only use the specified oil from a sealed container. Immediately reseal containers of oil. Without
proper sealing, oil will become moisture saturated and should not be used.
- Avoid breathing A/C refrigerant and oil vapor or mist. Exposure may irritate eyes, nose and throat.
Use only approved recovery/recycling equipment to discharge HFC-134a (R-134a) refrigerant. If acci-
dental system discharge occurs, ventilate work area before resuming service. Additional health and
safety information may be obtained from refrigerant and oil manufacturers.
- Do not allow A/C oil to come in contact with styrofoam parts. Damage may result.
PIIB3706J
PRECAUTIONS
HAC-85
< PRECAUTION >
[MANUAL AIR CONDITIONER]
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Precaution for Service Equipment
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MANIFOLD GAUGE SET
Be certain that the gauge face indicates R-134a or 134a. Make sure
the gauge set has 1/2
″
-16 ACME threaded connections for service
hoses. Confirm the set has been used only with refrigerant HFC-
134a (R-134a) along with specified oil.
SERVICE HOSES
Be certain that the service hoses display the markings described
(colored hose with black stripe). All hoses must include positive shut-
off devices (either manual or automatic) near the end of the hoses
opposite the manifold gauge.
SERVICE COUPLERS
Never attempt to connect HFC-134a (R-134a) service couplers to a
CFC-12 (R-12) A/C system. The HFC-134a (R-134a) couplers will
not properly connect to the CFC-12 (R-12) system. However, if an
improper connection is attempted, discharging and contamination
may occur.
SHA533D
RHA272D
Shut-off valve rotation
A/C service valve
Clockwise
Open
Counterclockwise
Close
RHA273D
HAC-86
< BASIC INSPECTION >
[AUTO AIR CONDITIONER (W/O NAVI)]
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
How to Perform Trouble Diagnosis For Quick And Accurate Repair
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WORK FLOW
1.
LISTEN TO CUSTOMER COMPLAINT
Listen to customer complaint. Get detailed information about the conditions and environment when the symp-
tom occurs.
>> GO TO 2
2.
CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
>> GO TO 3.
3.
VERIFY THE SYMPTOM WITH OPERATIONAL CHECK
Verify the symptom with operational check. Refer to
.
Can a symptom be duplicated?
YES
>> GO TO 4
NO
>> GO TO 5
4.
GO TO APPROPRIATE TROUBLE DIAGNOSIS
Go to appropriate trouble diagnosis. Refer to
HAC-184, "Symptom Matrix Chart"
Can a symptom be duplicated?
>> GO TO 5.
5.
PERFORM THE FRONT AIR CONTROL SELF-DIAGNOSIS
Perform A/C auto amp. self-diagnosis. Refer to
HAC-98, "Front Air Control Self-Diagnosis"
.
>> If any diagnostic trouble codes set, refer to
HAC-104, "A/C System Self-Diagnosis Code Chart"
.
>> Confirm the repair by performing operational check. Refer to
.
INSPECTION AND ADJUSTMENT
HAC-87
< BASIC INSPECTION >
[AUTO AIR CONDITIONER (W/O NAVI)]
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INSPECTION AND ADJUSTMENT
Operational Check
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The purpose of the operational check is to confirm that the system operates properly.
CHECKING MEMORY FUNCTION
1.
Press temperature control switch (UP: ) until 32
°
C is displayed.
2.
Press OFF switch.
3.
Turn the ignition switch OFF.
4.
Turn the ignition switch ON.
5.
Press the 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-198, "Memory Function Check"
.
If OK, continue the check.
CHECKING BLOWER
1.
Press blower motor switch (UP: ). Blower should operate on low speed. The fan symbol should have one
blade lit.
2.
Press blower motor switch (UP: ), 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-120, "Front Blower Motor Diagnosis Procedure"
If OK, continue the check.
CHECKING 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
.
Intake door position is checked in the next step.
If NG, go to trouble diagnosis procedure for
HAC-109, "Mode Door Motor Diagnosis Procedure"
If OK, continue the check.
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and intake door position is at
FRESH when the DEF is selected.
CHECKING RECIRCULATION
1.
Press recirculation (REC) switch one time. Recirculation LED should illuminate.
2.
Press fresh (FRE) switch one time. Fresh LED should illuminate.
3.
Listen for intake door position change (you should hear blower sound change slightly).
If NG, go to trouble diagnosis procedure for
HAC-116, "Intake Door Motor Diagnosis Procedure"
If OK, continue the check.
CHECKING TEMPERATURE INCREASE
1.
Press temperature control switch (UP: ) until 32
°
C is displayed.
2.
Check for hot air at discharge air outlets.
If NG, go to trouble diagnosis procedure for
HAC-193, "Component Function Check"
If OK, continue the check.
CHECKING TEMPERATURE DECREASE
1.
Press temperature control switch (DOWN: ) until 18
°
C is displayed.
Conditions
: Engine running at usual operating temperature
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