NISSAN TIIDA 2007 Service Repair Manual

HAC-198
< SYMPTOM DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
MEMORY FUNCTION DOES NOT OPERATE
MEMORY FUNCTION DOES NOT OPERATE
Memory Function CheckINFOID:0000000001547459
SYMPTOM: Memory function does not operate.
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - MEMORY FUNCTION
1. Set the temperature to 32°C (90°F).
2. Rotate the front blower control dial (driver) to turn system OFF.
3. Turn ignition switch OFF.
4. Turn ignition switch ON.
5. Press the AUTO switch.
6. Confirm that the set temperature remains at previous temperature.
7. Rotate the front blower control dial (LH) to turn system OFF.
Can the symptom be duplicated?
YES >> GO TO 3.
NO >> GO TO 2.
2.PERFORM COMPLETE OPERATIONAL CHECK
Perform a complete operational check and check for any symptoms. Refer to HAC-87, "
Operational Check".
Can a symptom be duplicated?
YES >> Refer to HAC-86, "How to Perform Trouble Diagnosis For Quick And Accurate Repair".
NO >> System OK.
3.CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
>> GO TO 4.
4.PERFORM SELF-DIAGNOSIS
Perform self-diagnosis to check for any codes. Refer to HAC-98, "
Front Air Control Self-Diagnosis".
Are any self-diagnosis codes present?
YES >> Refer to HAC-104, "A/C System Self-Diagnosis Code Chart".
NO >> GO TO 5.
5.CHECK POWER AND GROUND CIRCUIT
Check main power supply and ground circuit. Refer to HAC-163, "
Front Air Control Component Function
Check".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace as necessary.
6.RECHECK FOR SYMPTOMS
Perform a complete operational check for any symptoms. Refer to HAC-87, "
Operational Check".
Does another symptom exist?
YES >> Refer to HAC-86, "How to Perform Trouble Diagnosis For Quick And Accurate Repair".
NO >> Replace A/C Auto amp. Refer to XX-XX, "*****"
.

PRECAUTIONS
HAC-199
< PRECAUTION >[AUTO AIR CONDITIONER (W/O NAVI)]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001548138
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 CoverINFOID:0000000001548139
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Working with HFC-134a (R-134a)INFOID:0000000001547461
WARNING:
 CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refrigerant are not compatible. If the refrigerants
are mixed compressor failure is likely to occur. Refer to XX-XX, "*****"
. To determine the purity of
HFC-134a (R-134a) in the vehicle and recovery tank, use Refrigerant Recovery/Recycling Recharging
equipment and Refrigerant Identifier.
 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 failure 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.
Remove HFC-134a (R-134a) from the A/C system using certified service equipment meeting require-
ments of SAE J2210 [HFC-134a (R-134a) recycling equipment], or J2209 [HFC-134a (R-134a) recy-
cling equipment], If accidental system discharge occurs, ventilate work area before resuming
service. Additional health and safety information may be obtained from refrigerant and oil manufac-
turers.
PIIB3706J

HAC-200
< PRECAUTION >[AUTO AIR CONDITIONER (W/O NAVI)]
PRECAUTIONS
- Do not allow A/C oil to come in contact with styrofoam parts. Damage may result.
CONTAMINATED REFRIGERANT
If a refrigerant other than pure HFC-134a (R-134a) is identified in a vehicle, your options are:
 Explain to the customer that environmental regulations prohibit the release of contaminated refrigerant into
the atmosphere.
 Explain that recovery of the contaminated refrigerant could damage your service equipment and refrigerant
supply.
 Suggest the customer return the vehicle to the location of previous service where the contamination may
have occurred.
 If you choose to perform the repair, recover the refrigerant using only dedicated equipment and contain-
ers. Do not recover contaminated refrigerant into your existing service equipment. If your facility does
not have dedicated recovery equipment, you may contact a local refrigerant product retailer for available ser-
vice. This refrigerant must be disposed of in accordance with all federal and local regulations. In addition,
replacement of all refrigerant system components on the vehicle is recommended.
 If the vehicle is within the warranty period, the air conditioner warranty is void. Please contact NISSAN Cus-
tomer Affairs for further assistance.
Precaution for Service EquipmentINFOID:0000000001547462
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

DIAGNOSIS AND REPAIR WORKFLOW
HAC-201
< BASIC INSPECTION >[AUTO AIR CONDITIONER (W/NAVI)]
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
How to Perform Trouble Diagnosis For Quick And Accurate RepairINFOID:0000000001547305
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 HAC-202, "
Operational Check".
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-298, "
SymptomMatrixChart".
Can a symptom be duplicated?
>> GO TO 5.
5.PERFORM THE FRONT AIR CONTROL SELF-DIAGNOSIS
Perform front air control self-diagnosis. Refer to HAC-213, "
Front Air Control Self-Diagnosis".
>> If any diagnostic trouble codes set. Refer to HAC-218, "
Front Air Control Self-Diagnosis Code
Chart".
>> Confirm the repair by performing operational check. Refer to HAC-202, "
Operational Check".

HAC-202
< BASIC INSPECTION >[AUTO AIR CONDITIONER (W/NAVI)]
INSPECTION AND ADJUSTMENT
INSPECTION AND ADJUSTMENT
Operational CheckINFOID:0000000001547306
The purpose of the operational check is to confirm that the system operates properly.
CHECKING BLOWER
1. Turn blower control dial to 1st speed. Blower should operate on low speed.
2. Turn blower control dial to 2nd speed, and continue checking blower motor until all speed are checked.
3. Leave blower on max. speed.
If NG, go to trouble diagnosis procedure for HAC-234, "
Front Blower Motor Diagnosis Procedure".
If OK, continue the check.
CHECKING DISCHARGE AIR
1. Turn mode control dial to each position.
2. Confirm that discharge air comes out according to the air distribution table. Refer to HAC-208, "
Discharge
Air Flow".
Intake door position is checked in the next step.
If NG, go to trouble diagnosis procedure for HAC-222, "
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 INTAKE DOOR
1. Press intake switch. Recirculation indicator should illuminate.
2. Press intake switch again. Fresh indicator 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-230, "
Intake Door Motor Diagnosis Procedure".
If OK, continue the check.
CHECKING TEMPERATURE DECREASE
1. Turn temperature control dial counterclockwise until 18°C (64°F).
2. Check for cold air at discharge air outlets.
If NG, go to trouble diagnosis procedure for HAC-299, "
Component Function Check".
If OK, continue the check.
CHECKING TEMPERATURE INCREASE
1. Turn temperature control dial clockwise until 32°C (90°F).
2. Check for hot air at discharge air outlets.
If NG, go to trouble diagnosis procedure for HAC-307, "
Component Function Check".
If OK, continue the check.
CHECKING A/C SWITCH
1. Turn blower control dial to ON.
2. Press A/C switch.
3. A/C switch indicator will turn ON.
 Confirm that the compressor clutch engages (sound or visual inspection).
If NG, go to trouble diagnosis procedure for HAC-239, "
Magnet Clutch Diagnosis Procedure".
If OK, continue the check.
CHECKING AUTO MODE
1. Set mode control dial and blower control dial to AUTO position.
2. Press A/C switch.Conditions : Engine running at usual operating temperature

INSPECTION AND ADJUSTMENT
HAC-203
< BASIC INSPECTION >[AUTO AIR CONDITIONER (W/NAVI)]
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 Confirm that discharge air and blower speed will depend on ambient, in-vehicle, and set temperatures.
 If NG, go to trouble diagnosis procedure for HAC-278, "
A/C Auto Amp Power and Ground Diagnosis Proce-
dure", then if necessary, trouble diagnosis procedure for HAC-239, "Magnet Clutch Diagnosis Procedure".
 If all operational checks are OK (symptom cannot be duplicated), go to HAC-201, "
How to Perform Trouble
Diagnosis For Quick And Accurate Repair" and perform tests as outlined to simulate driving conditions envi-
ronment.
 If symptom appears, refer to HAC-298, "
SymptomMatrixChart" and perform applicable trouble diagnosis
procedures.

HAC-204
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
FUNCTION INFORMATION
FUNCTION DIAGNOSIS
FUNCTION INFORMATION
Component Part LocationINFOID:0000000001548103
ENGINE COMPARTMENT
PASSENGER COMPARTMENT
1. A/C Compressor F3 2. Refrigerant pressure sensor E17 3. Ambient sensor E60
AWIIA0602ZZ

FUNCTION INFORMATION
HAC-205
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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1. Variable blower control M90, M91 2. Intake door motor M89 3. Air mix door motor M88
4. In-vehicle sensor M93 5. Intake sensor M92 6. Mode door motor M87
7. Sunload sensor M94 8. Front blower motor M62 9. Front air control M85, M86
AWIIA0321ZZ

HAC-206
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
REFRIGERATION SYSTEM
REFRIGERATION SYSTEM
Refrigerant CycleINFOID:0000000001547310
Refer to HA-16, "Refrigerant Cycle".
Refrigerant System ProtectionINFOID:0000000001547311
Refer to HA-16, "Refrigerant System Protection".

AUTOMATIC AIR CONDITIONER SYSTEM
HAC-207
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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AUTOMATIC AIR CONDITIONER SYSTEM
Control System DiagramINFOID:0000000001547312
CONTROL SYSTEM
The control system consists of input sensors, switches, the front air control (microcomputer) and outputs.
The relationships of these components is shown in the diagram below:
Control System DescriptionINFOID:0000000001547313
AWIIA0322GB
1. Mode control dial 2. Rear window defogger switch 3. A/C switch
4. Intake switch 5. Blower control dial 6. Temperature control dial
AWIIA0323ZZ