2008 NISSAN TEANA check engine

HAC-108
< BASIC INSPECTION >[WITH 7 INCH DISPLAY]
INSPECTION AND ADJUSTMENT
INSPECTION AND ADJUSTMENT
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : Description & Inspection
INFOID:0000000003884686
DESCRIPTION
The purpose of the operational check is to check that the individual system operates normally.
INSPECTION PROCEDURE
1.CHECK MEMORY FUNCTION
1. Start the engine.
2. Operate the temperature control dial (driver 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 >> Memory function malfunction: HAC-236, "
Inspection procedure".
2.CHECK BLOWER MOTOR SPEED
1. Start the engine.
2. Operate the fan control dial. Check that the fan speed changes. Check the operation for all fan speeds.
3. Set the fan speed to speed 7.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Blower motor system malfunction: HAC-193, "
Diagnosis Procedure".
3.CHECK DISCHARGE AIR
1. Press the MODE switch and the DEF switch.
2. Each position indicator should change shape.
3. Confirm that discharge air comes out according to the air distribution table. Refer to HAC-122, "
WITHOUT
INTELLIGENT AIR CONDITIONER SYSTEM : System Description".
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and the intake door position is at
the FRE when DEF is selected.
Is the inspection result normal?
YES >> GO TO 4.Conditions : Engine running at normal operating temperature
JPIIA0877GB

INSPECTION AND ADJUSTMENT
HAC-109
< BASIC INSPECTION >[WITH 7 INCH DISPLAY]
C
D
E
F
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MA
B
HAC
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NO >> Mode door system malfunction: HAC-186, "Diagnosis Procedure".
4.CHECK INTAKE AIR
1. Press the REC switch. REC indicator is turned ON.
2. Press the FRE switch. FRE indicator is turned ON.
3. Listen for the intake door position change. (Slight change of blower sound can be heard.)
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and the intake door position is at
the FRE when the DEF is selected.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Intake door system malfunction: HAC-189, "
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 compressor clutch engages (sound or visual inspection).
Is the inspection result normal?
YES >> GO TO 6.
NO >> Magnet clutch system malfunction: HAC-197, "
Diagnosis Procedure".
6.CHECK WITH TEMPERATURE SETTING LOWERED
1. Operate the compressor.
2. Operate the temperature control dial (driver 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 >> Insufficient cooling: HAC-228, "
Inspection procedure".
7.CHECK WITH TEMPERATURE SETTING RAISED
1. Operate the temperature control dial (driver 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 >> Insufficient heating: HAC-231, "
Inspection procedure".
8.CHECK LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL SYSTEM FUNC-
TION
1. Press the DUAL switch, and then check that “DUAL” is shown on the display.
2. Operate the temperature control dial (driver side). Check that the discharge air temperature (driver side)
changes.
3. Operate the temperature control dial (passenger side). Check that the discharge air temperature (passen-
ger side) changes.
4. Press the DUAL switch, and then check that the temperature setting (LH/RH) is unified to the driver side
temperature setting.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Refer to HAC-226, "
Diagnosis Chart By Symptom" and perform the appropriate diagnosis.
9.CHECK AUTO MODE
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).
Is the inspection result normal?
YES >> GO TO 10.
NO >> Refer to HAC-226, "
Diagnosis Chart By Symptom" and perform the appropriate diagnosis.

HAC-112
< BASIC INSPECTION >[WITH 7 INCH DISPLAY]
INSPECTION AND ADJUSTMENT
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Description & Inspection
INFOID:0000000003888717
DESCRIPTION
The purpose of the operational check is to check that the individual system operates normally.
INSPECTION PROCEDURE
1.CHECK MEMORY FUNCTION
1. Start the engine.
2. Operate the temperature control dial (driver 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 >> Memory function malfunction: HAC-236, "
Inspection procedure".
2.CHECK BLOWER MOTOR SPEED
1. Start the engine.
2. Operate the fan control dial. Check that the fan speed changes. Check the operation for all fan speeds.
3. Set the fan speed to speed 7.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Blower motor system malfunction: HAC-193, "
Diagnosis Procedure".
3.CHECK DISCHARGE AIR
1. Press the MODE switch and the DEF switch.
2. Each position indicator should change shape.
3. Confirm that discharge air comes out according to the air distribution table. Refer to HAC-133, "
WITH
INTELLIGENT AIR CONDITIONER SYSTEM : System Description".
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and the intake door position is at
the FRE when DEF is selected.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Mode door system malfunction: HAC-186, "
Diagnosis Procedure".
4.CHECK INTAKE AIRConditions : Engine running at normal operating temperature
JPIIA0877GB

INSPECTION AND ADJUSTMENT
HAC-113
< BASIC INSPECTION >[WITH 7 INCH DISPLAY]
C
D
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B
HAC
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1. Press the intake switch. Indicator is turned ON (REC).
2. Press the intake switch again. Indicator is turned OFF (FRE).
3. Listen for the intake door position change. (Slight change of blower sound can be heard.)
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and the intake door position is at
the FRE when the DEF is selected.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Intake door system malfunction: HAC-189, "
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 compressor clutch engages (sound or visual inspection).
Is the inspection result normal?
YES >> GO TO 6.
NO >> Magnet clutch system malfunction: HAC-197, "
Diagnosis Procedure".
6.CHECK WITH TEMPERATURE SETTING LOWERED
1. Operate the compressor.
2. Operate the temperature control dial (driver 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 >> Insufficient cooling: HAC-228, "
Inspection procedure".
7.CHECK WITH TEMPERATURE SETTING RAISED
1. Operate the temperature control dial (driver 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 >> Insufficient heating: HAC-231, "
Inspection procedure".
8.CHECK LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL SYSTEM FUNC-
TION
1. Press the DUAL switch, and then check that “DUAL” is shown on the display.
2. Operate the temperature control dial (driver side). Check that the discharge air temperature (driver side)
changes.
3. Operate the temperature control dial (passenger side). Check that the discharge air temperature (passen-
ger side) changes.
4. Press the DUAL switch, and then check that the temperature setting (LH/RH) is unified to the driver side
temperature setting.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Refer to HAC-226, "
Diagnosis Chart By Symptom" and perform the appropriate diagnosis.
9.CHECK AUTO MODE
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).
Is the inspection result normal?
YES >> GO TO 10.
NO >> Refer to HAC-226, "
Diagnosis Chart By Symptom" and perform the appropriate diagnosis.
10.CHECK PLASMACLUSTER ION CONTROL FUNCTION
1. Turn ignition switch OFF and restart the engine.

HAC-114
< BASIC INSPECTION >[WITH 7 INCH DISPLAY]
INSPECTION AND ADJUSTMENT
2. Ion indicator is shown on the display.
3. Press OFF switch.
4. Ion indicator is turned OFF.
Is the inspection result normal?
YES >> GO TO 11.
NO >> Refer to HAC-227, "
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Inspection procedure".
11 .CHECK ION CONTROL MODE
1. Turn ignition switch OFF and restart the engine.
2. Turn fan control dial clockwise.
3. Ion indicator (blue) is turned ON.
4. Ion indicator (blue) changes to ion indicator (green) after approximately 15 minutes.
5. Ion indicator (green) changes to ion indicator (blue) after approximately 15 minutes.
6. Press CLEAN switch.
7. Ion indicator (blue) changes to ion indicator (green) after approximately 30 minutes.
8. Ion indicator (green) changes to ion indicator (blue) after approximately 15 minutes.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace unified meter and A/C amp.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Temperature Setting Trimmer
INFOID:0000000003888718
DESCRIPTION
If the temperature felt by the customer is different than the air flow temperature controlled by the temperature
setting, the A/C auto amp. control temperature can be adjusted to compensate for the temperature setting.
HOW TO SET
Using CONSULT-III, perform “TEMP SET CORRECT” on “WORK SUPPORT” of HVAC.
NOTE:
 When the temperature setting is set to 25.0°C (77°F) and −3.0°C (−6°F), the temperature controlled by A/C
auto amp. is 25.0°C (77°F) −3.0°C (6°F) = 22.0°C (71°F) and the temperature becomes lower than the tem-
perature setting.
 When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10
V or less, trimmer operation is canceled. Temperature set becomes that of initial condition.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Foot Position Setting Trimmer
INFOID:0000000003888719
DESCRIPTION
Work support items Display (°F) Display (°C)
TEMP SET CORRECT63.0
52.5
42.0
31.5
21.0
10.5
0 (initial status) 0 (initial status)
−1−0.5
−2−1.0
−3−1.5
−4−2.0
−5−2.5
−6−3.0

HAC-138
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
AUTOMATIC AIR CONDITIONER SYSTEM
START: Initial compulsory signal is sent to each of the door motors.
ADDRESS: Data sent from the A/C auto amp. is selected according to data-based decisions made by the mode door
motor, the air mix door motors and the intake door motor.
 If the addresses are identical, the opening angle data and error check signals are received by the door motor
LCUs. The LCUs then make the appropriate error decision. If the opening angle data has no error, door con-
trol begins.
 If an error exists, the received data is rejected and the corrected data received. Finally, door control is based
upon the corrected opening angle data.
OPENING ANGLE:
 Data that shows the indicated door opening angle of each door motor.
ERROR CHECK: In this procedure, transmitted and received data is checked for errors. Error data is then compiled. The error
check prevents corrupted data from being used by the mode door motor, the air mix door motors and the
intake door motor. Error data can be related to the following symptoms.
- Malfunction of electrical frequency
- Poor electrical connections
- Signal leakage from transmission lines
- Signal level fluctuation
STOP SIGNAL:
 At the end of each transmission, a stop operation, in-operation, or internal malfunction message is delivered
to the A/C auto amp. This completes one data transmission and control cycle.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Component Part Location
INFOID:0000000003885178
ENGINE COMPARTMENT
JSIIA1132GB

HAC-158
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
DIAGNOSIS SYSTEM (HVAC)
ACTIVE TEST
HVAC TEST
NOTE:
 Perform the inspection of each output device after starting the engine because the compressor is operated.
 When choosing to “MODE 7”, error message is displayed but it is not malfunction.
WORK SUPPORT
INT TEMP CAL [°C] Intake sensor value calculated by A/C auto amp.
SUNL SEN CAL
[w/m
2]Sunload sensor value calculated by A/C auto amp.
FAN DUTY [%] Duty ratio of blower motor judged by A/C auto amp.
XMTarget discharge air temperature judged by A/C auto amp. according to the tempera-
ture setting and the value from each sensor
ENG COOL TEMP [°C] Water temperature signal value received from ECM via CAN communication
VEHICLE SPEED[Mph
(km/h)]Vehicle speed signal value received from meter via CAN communication Monitor item [Unit] Description
Test item Description
ALL SEG NOTE:
 Item can be displayed but cannot be tested.
 When choosing to turn “ALL SEG” on, error message is displayed but it is not malfunction.
HVAC TESTThe operation check of A/C system can be performed by selecting the mode. Refer to the fol-
lowing table for the conditions of each mode.
Te s t i t e m
MODE 1 MODE 2 MODE 3 MODE 4 MODE 5 MODE 6 MODE 7
Mode door position VENT B/L1 B/L2 AUTO FOOT D/F DEF -
Intake door position REC REC 20% FRE FRE FRE FRE -
Air mix door position
(driver & passenger
side)FULL COLD FULL COLD FULL HOT FULL HOT FULL HOT FULL HOT -
Blower motor duty ratio 37% 91% 65% 65% 65% 91% -
Compressor (Magnet
clutch)ON ON OFF OFF ON ON -
Work item Description Reference
TEMP SET CORRECTIf the temperature felt by the customer is different than the air flow
temperature controlled by the temperature setting, the auto ampli-
fier control temperature can be adjusted to compensate for the
temperature setting. HAC-110, "
WITHOUT
INTELLIGENT AIR
CONDITIONER SYS-
TEM : Temperature Set-
ting Trimmer"
BLOW SETIn the FOOT mode, the air blowing to the DEF can change ON/
OFF. HAC-110, "
WITHOUT
INTELLIGENT AIR
CONDITIONER SYS-
TEM : Foot Position Set-
ting Trimmer"

HAC-166
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
B257B, B257C AMBIENT SENSOR
B257B, B257C AMBIENT SENSOR
DescriptionINFOID:0000000003884740
COMPONENT DESCRIPTION
Ambient Sensor
 The ambient sensor (1) is installed behind left side of front bumper.
 It detects ambient temperature and converts it into a resistance
value which is then input into the A/C auto amp.
Ambient Sensor Circuit
AMBIENT TEMPERATURE INPUT PROCESS
The A/C auto amp. equips a processing circuit for the ambient sensor input. However, when the temperature
detected by the ambient sensor increases quickly, the processing circuit retards the A/C auto amp. function. It
only allows the A/C auto amp. to recognize an ambient temperature increase of 0.33°C (0.6°F) per 100 sec-
onds.
As an example, consider stopping for a few minutes after high speed driving. Although the actual ambient tem-
perature has not changed, the temperature detected by the ambient sensor increases. This is because the
heat from the engine compartment can radiate to the front bumper area, the location of the ambient sensor.
DTC LogicINFOID:0000000003884741
DTC DETECTION LOGIC
NOTE:
 If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to HAC-
164, "DTC Logic" or HAC-165, "DTC Logic".
 If there is an open circuit in the ambient sensor, A/C auto amp. registers extreme cold [−44°C (−47°F)] and
adjusts the temperature control warmer.
DTC CONFIRMATION PROCEDURE
1.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III
JPIIA0898ZZ
JPIIA0612GB
DTCItems
(CONSULT-III screen terms)Diagnostic item is detected when... Possible cause
B257B AMB TEMP SEN (SHORT)Detected temperature at ambient sensor
−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 sensor
100°C (212°F) or more