2014 NISSAN TEANA Service Manual

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NISSAN TEANA 2014 Service Manual
HAC-48
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONER]
OPERATION INSPECTION
OPERATION INSPECTION
Work ProcedureINFOID:0000000009463110
DESCRIPTION
The purpose of the operational check is to che
ck th

HAC-48
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONER]
OPERATION INSPECTION
OPERATION INSPECTION
Work ProcedureINFOID:0000000009463110
DESCRIPTION
The purpose of the operational check is to che
ck that the individual system operates normally.
INSPECTION PROCEDURE
1.CHECK MEMORY FUNCTION
1. Start the engine.
2. Operate the temperature control switch (drive r side) and raise the temperature setting to 32°C (90 °F).
3. Press the OFF switch.
4. Turn the ignition switch OFF.
5. Turn the ignition switch ON.
6. Press the AUTO switch.
7. Check that the temperature setting, before turning the ignition switch OFF, is stored.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Check power and ground circuits for A/C auto amp. Refer to HAC-78, "A/C AUTO AMP. : Diagno-
sis Procedure".
2.CHECK BLOWER MOTOR SPEED
1. Operate the fan control dial. Check that the fan speed changes.
2. Check the operation for all fan speeds.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check blower motor system. Refer to HAC-84, "Diagnosis Procedure"
.
3.CHECK DISCHARGE AIR (MODE SWITCH AND DEF SWITCH)
1. Press the MODE switch and the DEF switch.
2. Check that the air outlets change according to each i ndicated air outlet by placing a hand in front of the
outlets. Refer to HAC-13, "System Description"
.
NOTE:
Confirm that the A/C compressor clutch is engaged (sound or visual inspection) and intake door position is at
FRE ( ) when the D/F ( ) or DEF ( ) is selected.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Check mode door system. Refer to HAC-80, "MODE DOOR MOTOR : Diagnosis Procedure"
.
4.CHECK INTAKE AIR
1. Press the REC ( ) switch. Indicator is turned ON.
2. Press the FRE ( ) switch. Indicator is turned ON.
3. Listen for the intake door position change. (Slight change of blower sound can be heard.)
NOTE:
Confirm that the A/C compressor clutch is engaged (sound or visual inspection) and the FRE ( ) switch is
pressed when the D/F ( ) or DEF ( ) is selected.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Check intake door system. Refer to HAC-81, "INTAKE DOOR MOTOR : Diagnosis Procedure"
.
5.CHECK A/C SWITCH
1. Press the A/C switch.
2. The A/C switch indicator is turned ON.
Confirm that the A/C compressor clutch engages (sound or visual inspection).
Is the inspection result normal?
Conditions : Engine running at normal operating temperature
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NISSAN TEANA 2014 Service Manual
OPERATION INSPECTIONHAC-49
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YES >> GO TO 6.
NO >> Check magnet clutch system. Refer to HAC-87, "Diagnosis Procedu

OPERATION INSPECTIONHAC-49
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YES >> GO TO 6.
NO >> Check magnet clutch system. Refer to HAC-87, "Diagnosis Procedure"
.
6.CHECK TEMPERATURE DECREASE
1. Operate the A/C compressor.
2. Operate the temperature control switch (drive r side) and lower the temperature setting to 18°C (60 °F).
3. Check that the cool air blows from the outlets.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Check for insufficient cooling. Refer to HAC-96, "Diagnosis Procedure"
.
7.CHECK TEMPERATURE INCREASE
1. Operate the temperature control switch (drive r side) and raise the temperature setting to 32°C (90 °F) after
warming up the engine.
2. Check that the warm air blows from the outlets.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Check for insufficient heating. Refer to HAC-98, "Diagnosis Procedure"
.
8.CHECK DUAL MODE FUNCTION
1. Press the DUAL mode switch, and then check that “DUAL” is shown on the display.
2. Operate the temperature control switch (driver si de). Check that the discharge air temperature (driver
side) changes.
3. Operate the temperature control switch (passenger side). Check that the discharge air temperature (pas-
senger side) changes.
4. Press the DUAL mode switch, and then check that the temperature setting (driver/passenger) is unified to
the driver side temperature setting.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Refer to HAC-94, "Diagnosis Chart By Symptom"
and perform the appropriate diagnosis.
9.CHECK AUTO MODE
1. Press the AUTO switch, and then check t hat “AUTO” is shown on the display.
2. Operate the temperature control switch (driver side) . Check that the fan speed, outlet air or intake air
changes. The discharge air temperature or fan speed varies depending on the ambient temperature, in-
vehicle temperature, and temperature setting.
Is the inspection result normal?
YES >> Inspection End
NO >> Refer to HAC-94, "Diagnosis Chart By Symptom"
and perform the appropriate diagnosis.
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NISSAN TEANA 2014 Service Manual
HAC-50
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONER]
SYSTEM SETTING
SYSTEM SETTING
Temperature Setting TrimmerINFOID:0000000009463111
Description
If the temperature felt by the customer is differen

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NISSAN TEANA 2014 Service Manual
SYSTEM SETTINGHAC-51
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• If the ignition switch is turned to the OFF position while the FRE ( ) switch is set to

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• If the ignition switch is turned to the OFF position while the FRE ( ) switch is set to ON (fresh air intake),
“Perform the memory” or “Do not perform the memory” of the FRE ( ) switch ON (fresh air intake) con-
dition can be selected.
• If “Perform the memory” was set, the FRE ( ) switch will be ON (fresh air intake) when turning the igni- tion switch to the ON position again.
• If “Do not perform the memory” was set, the air inlets will be controlled automatically when turning the igni- tion switch to the ON position again.
How to set
Using CONSULT, perform “FRE MEMORY SET” in “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10V or less, the setting of the
FRE switch memory function may be cancelled.
Inlet Port Memory Function (REC)INFOID:0000000009463114
Description
• If the ignition switch is turned to the OFF position wh ile the REC ( ) switch is set to ON (recirculation),
“Perform the memory” or “Do not perform the memory” of the REC ( ) switch ON (recirculation) condi-
tion can be selected.
• If “Perform the memory” was set, the REC ( ) switch will be ON (recirculation) when turning the ignition
switch to the ON position again.
• If “Do not perform the memory” was set, the air inlets will be controlled automatically when turning the igni-
tion switch to the ON position again.
How to set
Using CONSULT, perform “REC MEMORY SET” in “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10V or less, the setting of the
REC switch memory function may be cancelled.
Target Evaporator Temp Upper LimitINFOID:0000000009463115
DESCRIPTION
Set the target evaporator temperature upper limit.
HOW TO SET
With CONSULT
Perform the “TARGET EVAPORATOR TEMP UPPER LI MIT SETTING” of HVAC work support item.
Work support items Display Setting
FRE MEMORY SET WITHOUT Perform the memory of manual FRE
WITH (initial status) Do not perform the memory of manual FRE (auto
control)
Work support items Display Setting
REC MEMORY SET WITHOUT (initial status) Perform the memory of manual REC
WITH Do not perform the memory of manual REC (auto
control)
Work support items Display
TARGET EVAPORATOR TEMP UPPER LIMIT
SETTING Initial Setting
Low
Middle
High
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NISSAN TEANA 2014 Service Manual
HAC-52
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONER]
ADDITIONAL SERVICE WHEN REPLACI
NG CONTROL UNIT (A/C AUTO AMP.)
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (A/C AUTO
AMP.)
DescriptionINFOID

HAC-52
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONER]
ADDITIONAL SERVICE WHEN REPLACI
NG CONTROL UNIT (A/C AUTO AMP.)
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (A/C AUTO
AMP.)
DescriptionINFOID:0000000009463116
BEFORE REPLACEMENT
When replacing A/C auto amp., save or print current v ehicle specification with CONSULT configuration before
replacement.
NOTE:
If “Before Replace ECU” cannot be used, use the “After Replace ECU” or “Manual Configuration” after replac-
ing A/C auto amp.
AFTER REPLACEMENT
CAUTION:
• When replacing A/C auto amp., you must perform “After Replace ECU” with CONSULT.
- Complete the procedure of “After Replace ECU” in order.
- If you set incorrect “After Replace ECU”, incidents might occur.
- Configuration is different for each vehicle mode l. Confirm configuration of each vehicle model.
Work ProcedureINFOID:0000000009463117
1.SAVING VEHICLE SPECIFICATION
CONSULT
Enter "Re/Programming, Configuration" and perform “Before Replace ECU” to save or print current vehicle
specification.
NOTE:
If “Before Replace ECU” cannot be used, use the "After Replace ECU" or "Manual Configuration" after replac-
ing A/C auto amp.
>> GO TO 2.
2.REPLACE A/C AUTO AMP.
Replace A/C auto amp. Refer to HAC-102, "Removal and Installation"
.
>> GO TO 3.
3.WRITING VEHICLE SPECIFICATION
CONSULT
1. Enter "Re/Programming, Configuration".
2. If “Before Replace ECU” operation was performed, automatically an "Operation Log Selection" screen will
be displayed. Select the applicable file from the "S aved Data List" and press “Confirm” to write vehicle
specification. Refer to HAC-53, "Work Procedure"
.
3. If “Before Replace ECU” operation was not performed, select "After Replace ECU" or "Manual Configura-
tion" to write vehicle specification. Refer to HAC-53, "Work Procedure"
.
>> GO TO 4.
4.OPERATION CHECK
Check that the operation of the A/C auto amp. is normal.
>> Work End.
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NISSAN TEANA 2014 Service Manual
CONFIGURATION (HVAC)HAC-53
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CONFIGURATION (HVAC)
DescriptionINFOID:0000000009463118
Vehicle specification needs to

CONFIGURATION (HVAC)HAC-53
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CONFIGURATION (HVAC)
DescriptionINFOID:0000000009463118
Vehicle specification needs to be written with CONSULT because it is not written after replacing A/C auto amp.
Configuration has three functions as follows:
CAUTION:
• When replacing A/C auto amp., you must perform “Select Saved Data List” or "After Replace ECU"
with CONSULT.
• Complete the procedure of “Select Saved Da ta List” or "After Replace ECU" in order.
• If you set incorrect “Select Saved Data List” or "After Replace ECU", incidents might occur.
• Configuration is different for each vehicle model. Confirm conf iguration of each vehicle model.
• Never perform “Select Saved Data List” or "A fter Replace ECU" except for new A/C auto amp.
Work ProcedureINFOID:0000000009463119
1.WRITING MODE SELECTION
CONSULT
Select “Reprogramming, Configuration” of A/C auto amp.
When writing saved data>>GO TO 2.
When writing manually>>GO TO 3.
2.PERFORM “SAVED DATA LIST”
CONSULT
Automatically “Operation Log Selection” window will disp lay if “Before Replace ECU” was performed. Select
applicable file from the “Saved Data List” and press “Confirm”.
>> Work End.
3.PERFORM “AFTER REPLACE ECU” OR “MANUAL CONFIGURATION”
CONSULT
1. Select “After Replace ECU” or “Manual Configuration”.
2. Identify the correct model and configuration list. Refer to HAC-54, "Configuration List"
.
3. Confirm and/or change setting value for each item.
CAUTION:
Thoroughly read and understand the vehicle speci fication. ECU control may not operate normally
if the setting is not correct.
4. Select “Next”. CAUTION:
Make sure to select “Next”, confirm each setting value and press “OK” even if the indicated con-
figuration of brand new A/C auto am p. is same as the desirable configuration. If not, configuration
which is set automatically by selecti ng vehicle model cannot be memorized.
5. When "Completed", select "End".
>> GO TO 4.
4.OPERATION CHECK
Confirm that each function controlled by A/C auto amp. operates normally.
Function Description
"Before Replace ECU" • Reads the vehicle configuration of current A/C auto amp.
• Saves the read vehicle configuration.
"After Replace ECU" Writes the vehicle configuration with manual selection.
"Select Saved Data List" Writes the vehicle configuration with saved data.
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NISSAN TEANA 2014 Service Manual
HAC-54
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONER]
CONFIGURATION (HVAC)
>> Work End.
Configuration ListINFOID:0000000009463120
CAUTION:
Thoroughly read and understand the vehicle specifi cation.

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NISSAN TEANA 2014 Service Manual
U1000 CAN COMM CIRCUITHAC-55
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DTC/CIRCUIT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000009463121

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