ECO mode NISSAN TEANA 2008 Service Manual

INSPECTION AND ADJUSTMENT
HAC-115
< BASIC INSPECTION >[WITH 7 INCH DISPLAY]
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In the FOOT mode, the air blowing to the DEF can be turned ON/OFF.
HOW TO SET
Using CONSULT-III, perform “BLOW SET” on “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, trimmer operation is cancelled. Wind distribution rate set becomes that of initial condition.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Inlet Port Memory Function
(FRE)
INFOID:0000000003888720
DESCRIPTION
 If the ignition switch is turned to the OFF position while the intake switch is set to OFF (fresh air intake), “Per-
form the memory” or “Do not perform the memory” of the intake switch OFF (fresh air intake) condition can
be selected.
 If “Perform the memory” was set, the intake switch will be OFF (fresh air intake) 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-III, perform “FRE MEMORY SET” on “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the intake switch memory function may be cancelled.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Inlet Port Memory Function
(REC)
INFOID:0000000003888721
DESCRIPTION
 If the ignition switch is turned to the OFF position while the intake switch is set to ON (recirculation), “Per-
form the memory” or “Do not perform the memory” of the intake switch ON (recirculation) condition can be
selected.
 If “Perform the memory” was set, the intake 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-III, perform “REC MEMORY SET” on “WORK SUPPORT” of HVAC.
NOTE:
Work support items DisplayDEF door position
Auto control Manual control
BLOW SETMode 1 OPEN CLOSE
Mode 2 (initial status) OPEN OPEN
Mode 3 CLOSE OPEN
Mode 4 CLOSE CLOSE
Work support items Display Setting
FRE MEMORY SETWITHOUT (initial status) Perform the memory of manual FRE
WITH Do not perform the memory of manual FRE (auto control)
Work support items Display Setting
REC MEMORY SETWITHOUT Perform the memory of manual REC
WITH (initial status) Do not perform the memory of manual REC (auto control)

HAC-116
< BASIC INSPECTION >[WITH 7 INCH DISPLAY]
INSPECTION AND ADJUSTMENT
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the intake switch memory function may be cancelled.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Gas Sensor Sensitivity Adjust-
ment Function (With Intelligent Air Conditioner System)
INFOID:0000000003884691
DESCRIPTION
According to customer’s sense of smell, gas sensor sensitivity can be changed.
HOW TO SET
Using CONSULT-III, perform “GAS SENSOR ADJUSTMENT” on “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the intake switch memory function may be cancelled.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Clean Switch Interlocking Move-
ment Change Function (With Intelligent Air Conditioner System)
INFOID:0000000003884692
DESCRIPTION
Condition for interlocking movement of clean switch and A/C switch can be changed. In addition operation of
the clean switch, which activates the automatic re-circulation control system, can be set to become available
when the A/C switch is ON.
HOW TO SET
Using CONSULT-III, perform “CLEAN SW SET” on “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the intake switch memory function may be cancelled.
Work support items Display Setting
GAS SENSOR ADJUSTMENT2 Less sensitive setting than display 1 (REC later than display 1.)
1 Less sensitive setting than normal setting (REC later than normal operation.)
0 (initial status) Normal
−1 More sensitive setting than normal setting (REC earlier than normal operation.)
−2 More sensitive setting than display −1 (REC earlier than display −1.)
Work support items Display setting
CLEAN SW SETMODE 1 Initial setting
MODE 2 Setting 1
MODE 3 Setting 2
MODE 4 Setting 3
Initial settingWhen the clean switch is ON, the A/C switch is also turned ON in synchronization with the clean switch.
Control of the clean switch is functional even when the A/C switch is turned OFF.
Setting 1When the clean switch is ON, the A/C switch is not turned ON in synchronization with the clean switch.
Control of the clean switch is functional even when the A/C switch is turned OFF.
Setting 2When the clean switch is ON, the A/C switch is also turned ON in synchronization with the clean switch.
When the A/C switch is turned OFF, the clean switch is turned OFF in synchronization with the A/C switch.
Setting 3Clean switch can be turned ON only when A/C switch is ON.
When the A/C switch is turned OFF, the clean switch is turned OFF in synchronization with the A/C switch.

AUTOMATIC AIR CONDITIONER SYSTEM
HAC-123
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
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MODE Switch
The air discharge outlets are controlled with this switch.
Temperature Control Dial (Driver Side)
The set temperature is increased or decreased with this dial.
Temperature Control Dial (Passenger Side)
 The set temperature is increased or decreased with this dial.
 When the temperature control dial is turned, DUAL switch indicator is turned ON.
AUTO Switch
 The compressor, intake door, air mix doors, mode doors and blower speed are automatically controlled so
that the in-vehicle temperature will reach, and be maintained at the set temperature selected by the operator.
 When pressing the AUTO switch, air inlet, air outlet, fan speed, and discharge air temperature are automati-
cally controlled.
Defroster (DEF) Switch
Mode doors are set to the defrost position with this switch. Also, intake door is set to the outside air position,
and compressor turns ON.
A/C Switch
Compressor turns ON or OFF with this switch.
(Pressing the A/C switch when the A/C switch is ON turns OFF the A/C switch and compressor.)
Fan Control Dial
The blower speed is manually controlled with this dial. Seven speeds are available for manual control (as
shown on the display screen).
OFF Switch
Compressor and blower turn OFF, air inlet sets to FRE, and mode the position is set to foot position.
Rear Window Defogger Switch
When indicator is ON, rear window is defogged.
Recirculation (REC) Switch
 When REC switch is ON, REC switch indicator turns ON, and air inlet is fixed to REC.
 When REC switch is pressed for approximately 1.5 seconds or longer, REC and FRE switch indicators blink
twice. Then, automatic control mode is entered. Inlet status is displayed even during automatic control.
JPIIA1006ZZ
1.Temperature control dial (passenger
side)2. MODE switch 3. Fresh (FRE) switch
4. Fan control dial 5. Recirculation (REC) switch 6. A/C switch
7. Temperature control dial (driver side) 8. AUTO switch 9. Defroster (DEF) switch
10. OFF switch 11. Rear window defogger switch 12. DUAL switch

HAC-124
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
AUTOMATIC AIR CONDITIONER SYSTEM
 When FRE switch is turned ON, REC switch is automatically turned OFF (fixed to FRE mode). REC mode
can be re-entered by pressing REC switch again.
Fresh (FRE) Switch
 When FRE switch is ON, FRE switch indicator turns ON, and air inlet is fixed to FRE.
 When FRE switch is pressed for approximately 1.5 seconds or longer, REC and FRE switch indicators blink
twice. Then, automatic control mode is entered. Inlet status is displayed even during automatic control.
 When REC switch is turned ON, FRE switch is automatically turned OFF (fixed to REC mode). FRE mode
can be re-entered by pressing FRE switch again.
DUAL Switch
 When the DUAL switch indicator is ON, the driver side and passenger side, temperature can each be set
independently.
 When the DUAL switch indicator is OFF, the driver side setting temperature is applied to both sides.

HAC-134
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
AUTOMATIC AIR CONDITIONER SYSTEM
CLEAN Switch
 When the blower motor is operated, the indicator lamp of the clean switch illuminates by pressing the clean
switch. The air inlets are fixed to recirculation for approximately 5 minutes. After approximately 5 minutes
have passed, they change to the automatic re-circulation control system. The Plasmacluster ion generation
function operates for approximately 30 minutes (Blower motor operate) in clean mode after the clean switch
is ON. After approximately 30 minutes have passed, the vehicle is driven between ion control mode (approx-
imately 15 minutes) and clean mode (approximately 30 minutes) alternately.
NOTE:
When the clean switch is not ON
 Ignition switch: OFF
 Blower motor: OFF
 Mode position: Defroster (DEF)
 Ambient temperature: At about 0°C or below (Reactivate at about 2°C or above)
 When the gas sensor is malfunctioning
 The Plasmacluster ion generation function changes automatically to the ion control mode by turning the
clean switch OFF, and then operates for approximately 15 minutes. Then, it is operated between the clean
mode (approximately 15 minutes) and clean mode (approximately 15 minutes) alternately.
 When the clean switch is ON, the A/C switch is also turned ON in synchronization with the clean switch.
NOTE:
The A/C switch becomes deactivate and the clean switch is turned OFF in synchronization with the A/C
switch by the clean switch interlocking movement change function.
 Press the intake switch or defroster (DEF) switch when releasing the automatic recirculation control system.
A/C Switch
Compressor turns ON or OFF with this switch.
(Pressing the A/C switch when the A/C switch is ON turns OFF the A/C switch and compressor.)
Fan Control Dial
The blower speed is manually controlled with this dial. Seven speeds are available for manual control (as
shown on the display screen).
OFF Switch
Compressor and blower turn OFF, intake door and the mode doors are automatically controlled.
Rear Window Defogger Switch
When indicator is ON, rear window is defogged.
Intake Switch
 When the intake switch is ON, the intake switch indicator is turned ON, and air inlet is set to REC.
 When the intake switch is pressed again, the intake switch indicator is turned OFF, and air inlet is set to FRE.
 When the intake switch indicator is turned OFF, shifting mode position to DEF, intake switch is automatically
turned OFF (set to FRE mode). REC mode can be re-entered by pressing intake switch again.
DUAL Switch
 When the DUAL switch indicator is ON, the driver side and passenger side, temperature can each be set
independently.
 When the DUAL switch indicator is OFF, the driver side setting temperature is applied to both sides.

PLASMACLUSTER SYSTEM
HAC-143
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1. Clean mode operation
Ion indicator (blue) (1) in the display is turns ON as per the fol-
lowings.
 Approximately 15 minutes after starting the blower motor.
 Approximately 30 minutes after the clean switch is turned ON
while the blower motor is operating.
 Clean mode is switched to operate, 15 minutes after ion con-
trol mode in operation.
2. Ion control mode operation
Ion indicator (green) in the display is turns ON as per the follow-
ings.
 Ion control mode is switched to operate, 15 minutes after
clean mode in operation.
 After approximately 30 seconds of clean mode operation time has passed while the clean switch is ON.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Component Part Location
INFOID:0000000003884710
PASSENGER COMPARTMENT
Clean mode Emits positive and negative ions into air for deactivating impurities actively.
Ion control mode Emits more negative ions after deactivating impurities actively in clean mode.
JSIIA1152ZZ
JPIIA0998ZZ

BLOWER MOTOR CONTROL SYSTEM
HAC-153
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
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 When starting the automatic control of air flow, the system gradually increases the duty ratio of the blower
motor drive signal to prevent too much air from blowing.
 The time period from when the air flow changes from LO to HI is approximately 8 seconds.
 It becomes the starting air flow control at low coolant temperature according to the calculation result of the A/
C auto amp. and engine coolant temperature [approximately 56°C (133°F) or less] during the automatic air
flow control.
 Do not perform the starting air flow control when the air discharge outlet is set to DEF.
Starting Fan Speed Control
Start up from COLD SOAK Condition (Automatic mode)
In cold start up condition where the engine coolant temperature is below 56°C (133°F), the blower does not
operate for a short period of time (up to 150 seconds). The exact start delay time varies depending on the
ambient temperature and engine coolant temperature.
In the most extreme case (very low ambient temperature) the blower start delay is 150 seconds as described
above. After this delay, the blower will operate at low speed until the engine coolant temperature rises above
56°C (133°F), and then the blower speed increases to the objective speed.
Start up from usual or HOT SOAK Condition (Automatic mode)
The blower will begin operation momentarily after the AUTO switch is pressed. The blower speed rises gradu-
ally to the objective speed over a time period of 3 seconds or less (actual time depends on the objective
blower speed).

HAC-156
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
DIAGNOSIS SYSTEM (HVAC)
DIAGNOSIS SYSTEM (HVAC)
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : CONSULT-III Function
INFOID:0000000003884732
CONSULT-III can display each diagnosis item using the diagnosis test modes shown as per the following.
CONSULT-III application items
SELF DIAGNOSTIC RESULT
Refer to HAC-212, "WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : DTC Index".
Display Item List
Diagnosis mode Description
ECU Identification Displays the A/C auto amp. number.
Self Diagnostic Result Displays the diagnosis results judged by A/C auto amp.
Data Monitor Displays A/C auto amp. input/output data in real time.
Active Test The signals used to activate each device are forcibly supplied from A/C auto amp.
Work SupportChanges the setting for each system function.
 Temperature setting trimmer
 Inlet port memory function (FRE)
 Inlet port memory function (REC)
 Foot position setting trimmer
DTCItems
(CONSULT-III screen terms)Diagnostic item is detected when... Possible cause
U1000 CAN COMM CIRCUITWhen A/C auto amp. is not transmitting
or receiving CAN communication signal
for 2 or more seconds.CAN communication system
U1010 CONTROL UNIT (CAN)When detecting error during the initial
diagnosis of CAN controller of A/C auto
amp.A/C auto amp.
B257B AMB TEMP SEN (SHORT)Detected temperature at ambient sen-
sor −44°C (−47°F) or less Ambient sensor
 A/C auto amp.
 Harness and connector
(Ambient sensor circuit is open,
or there is a short in the circuit) B257C AMB TEMP SEN (OPEN)Detected temperature at ambient sen-
sor 100°C (212°F) or more
B2578IN CAR SENSOR (OUT OF RANGE
[LOW])Detected temperature at in-vehicle sen-
sor −44°C (−47°F) or less In-vehicle sensor
 A/C auto amp.
 Harness and connector
(In-vehicle sensor circuit is open,
or there is a short in the circuit) B2579IN CAR SENSOR (OUT OF RANGE
[HI])Detected temperature at in-vehicle sen-
sor 100°C (212°F) or more
B2581 EVAP TEMP SEN (SHORT)Detected temperature at intake sensor
−33°C (−27°F) or less Intake sensor
 A/C auto amp.
 Harness and connector
(Intake sensor circuit is open, or
there is a short in the circuit) B2582 EVAP TEMP SEN (OPEN)Detected temperature at intake sensor
69°C (156°F) or more
B2630
*SUNLOAD SEN (SHORT)Detected calorie at sunload sensor 64.7
w/m2 (30 kcal/m2·h) or less Sunload sensor
 A/C auto amp.
 Harness and connector
(Sunload sensor circuit is open,
or there is a short in the circuit) B2631
*SUNLOAD SEN (OPEN)Detected calorie at sunload sensor
2832 w/m2 (1304 kcal/m2·h) or more
B2632 DR AIRMIX ACTR (SHORT)Air mix door PBR (driver side) position
5% or less Air mix door motor (driver side)
 A/C auto amp.
 Harness and connector
(CAN communication line is open
or shorted)
(Air mix door motor is open or
shorted) B2633 DR AIRMIX ACTR (OPEN)Air mix door PBR (driver side) position
95% or more

DIAGNOSIS SYSTEM (HVAC)
HAC-159
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NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of WORK SUPPORT may be cancelled.
WITH INTELLIGENT AIR CONDITIONER SYSTEM
WITH INTELLIGENT AIR CONDITIONER SYSTEM : CONSULT-III Function
INFOID:0000000003884733
CONSULT-III can display each diagnosis item using the diagnosis test modes shown as per the following.
CONSULT-III application items
SELF DIAGNOSTIC RESULT
Refer to HAC-224, "WITH INTELLIGENT AIR CONDITIONER SYSTEM : DTC Index".
Display Item List
FRE MEMORY SET 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 in-
take) condition can be selected.
 If “Perform the memory” was set, the FRE switch will be ON
(fresh air intake) when turning the ignition switch to the ON posi-
tion again.
 If “Do not perform the memory” was set, the air inlets will be con-
trolled automatically when turning the ignition switch to the ON
position again. HAC-111, "
WITHOUT IN-
TELLIGENT AIR CON-
DITIONER SYSTEM :
Inlet Port Memory Func-
tion (FRE)"
REC MEMORY SET If the ignition switch is turned to the OFF position while the REC
switch is set to ON (recirculation), “Perform the memory” or “Do
not perform the memory” of the REC switch ON (recirculation)
condition can be selected.
 If “Perform the memory” was set, the REC switch will be ON (re-
circulation) when turning the ignition switch to the ON position
again.
 If “Do not perform the memory” was set, the air inlets will be con-
trolled automatically when turning the ignition switch to the ON
position again. HAC-111, "
WITHOUT IN-
TELLIGENT AIR CON-
DITIONER SYSTEM :
Inlet Port Memory Func-
tion (REC)"
Work item Description Reference
Diagnosis mode Description
ECU Identification Displays the A/C auto amp. number.
Self Diagnostic Result Displays the diagnosis results judged by A/C auto amp.
Data Monitor Displays A/C auto amp. input/output data in real time.
Active Test The signals used to activate each device are forcibly supplied from A/C auto amp.
Work SupportChanges the setting for each system function.
 Temperature setting trimmer
 Inlet port memory function (FRE)
 Inlet port memory function (REC)
 Foot position setting trimmer
 Gas sensor sensitivity adjustment function
 Clean switch interlocking movement change function
DTCItems
(CONSULT-III screen terms)Diagnostic item is detected when... Possible cause
U1000 CAN COMM CIRCUITWhen A/C auto amp. is not transmitting
or receiving CAN communication signal
for 2 or more seconds.CAN communication system
U1010 CONTROL UNIT (CAN)When detecting error during the initial
diagnosis of CAN controller of A/C auto
amp.A/C auto amp.

HAC-192
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
A/C AUTO AMP.
A/C AUTO AMP.
DescriptionINFOID:0000000003941321
COMPONENT DESCRIPTION
A/C Auto Amp. (Air Conditioner Automatic Amplifier)
The A/C auto amp. (1) has a built-in microcomputer that processes
information sent from various sensors needed for air conditioner
operation. The air mix door motors, the mode door motor, the intake
door motor, the blower motor and the compressor are then con-
trolled.
When the various switches and temperature control dial are oper-
ated, data is input to the A/C auto amp. from the A/C control.
Component Function CheckINFOID:0000000003940728
1.CHECK OPERATION
1. Press the AUTO switch, and then check that “AUTO” is shown on the display.
2. Operate the temperature control dial (driver side). Check that the fan speed or outlet changes. (The dis-
charge air temperature or fan speed varies depending on the ambient temperature, in-vehicle tempera-
ture, and temperature setting.)
Does it operate normally?
YES >> INSPECTION END
NO >> Perform trouble diagnosis for the A/C system. Refer to HAC-192, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003940729
1.INSPECTION BY FAIL-SAFE FUNCTION
1. Turn the ignition switch ON.
2. After approximately 30 seconds, check that the air conditioner is operated by the fail-safe function (the
operation display of air conditioner is not performed). Refer to HAC-211, "
WITHOUT INTELLIGENT AIR
CONDITIONER SYSTEM : Fail-Safe" (WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM) or HAC-
223, "WITH INTELLIGENT AIR CONDITIONER SYSTEM : Fail-Safe" (WITH INTELLIGENT AIR CONDI-
TIONER SYSTEM).
Is the fail-safe function operated?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK A/C AUTO AMP. POWER SUPPLY CIRCUIT AND GROUND
Check A/C auto amp. power supply circuit and ground circuit. Refer to HAC-192, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace parts according to the inspection results.
3.CHECK PRESET SWITCH
Check the preset switch. Refer to AV-164, "
Symptom Table" (BASE AUDIO AND DISPLAY SYSTEM), AV-372,
"Symptom Table" (BOSE AUDIO WITHOUT NAVIGATION) or AV-640, "Symptom Table" (BOSE AUDIO WITH
NAVIGATION).
Is the inspection result normal?
YES >> Replace the A/C auto amp.
NO >> Repair or replace parts according to the inspection results.
JPIIA0894ZZ