2014 NISSAN TEANA sensor

HAC-16
< SYSTEM DESCRIPTION >[AUTOMATIC AIR CONDITIONER]
SYSTEM
Air Outlet Control
INFOID:0000000009463097
• While air outlet is in automatic control, A/C auto amp. selects the mode door position depending on a target air mix door angle and
outlet air temperature calculated from sunload.
• If ambient temperature is excessively low, D/F is selected to pre- vent windshield fogging when air outlet is set to FOOT.
Compressor ControlINFOID:0000000009463098
DESCRIPTION
• When the compressor activation condition is satisfied whil e blower motor is activated, A/C auto amp. trans-
mits A/C ON signal and blower fan ON signal to ECM via CAN communication.
• ECM judges that the compressor can be activated depending on the state of each sensor (refrigerant pres-
sure sensor signal and others) and transmits A/C comp ressor request signal to IPDM E/R via CAN commu-
nication.
• IPDM E/R turns A/C relay ON and activate s the compressor depending on request from ECM.
COMPRESSOR PROTECTION CONTROL AT PRESSURE MALFUNCTION
When high-pressure side value that is detected by refrigerant pressure sensor is as per the following state,
ECM requests IPDM E/R to turn A/C relay OFF and stops the compressor.
• 3.12 MPa (31.82 kg/cm
2, 452.4 psi) or more (When the engine speed is less than 1,500 rpm)
• 2.74 MPa (27.95 kg/cm
2, 397.3 psi) or more (When the engine speed is 1,500 rpm or more)
• 0.14 MPa (1.43 kg/cm
2, 20.3 psi) or less
COMPRESSOR OIL CIRCULATION CONTROL
When the engine starts while the engine coolant temperature is 56 °C (133 °F) or less, ECM activates the com-
pressor for approximately 6 seconds and circulates the compressor lubricant once.
LOW TEMPERATURE PROTECTION CONTROL
• When intake sensor detects that front evaporator fin temperature is 2.5 °C (37 °F) or less, A/C auto amp. requests ECM to turn com-
pressor OFF, and stops the compressor.
• When the front evaporator fin temperature returns to 5.0 °C (41 °F)
or more, the compressor is activated.
OPERATING RATE CONTROL
When set temperature is other than fully cold or air out let is “VENT”, “B/L” or “FOOT” A/C auto amp. controls
the compressor activation depending on ambient temperature.
AIR CONDITIONING CUT CONTROL
When set engine is running is excessively high load conditi on, ECM requests IPDM E/R to turn A/C relay OFF,
and stops the compressor. Refer to EC-56, "AIR CONDITIONING CUT CONT ROL : System Description (with
automatic air conditioner)" (QR25DE) or EC-573, "AIR CONDITIONING CUT CONTROL : System Descrip-
tion" (VQ35DE) for details.
JMIIA0730GB
JMIIA0742GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-24
< SYSTEM DESCRIPTION >[AUTOMATIC AIR CONDITIONER]
DIAGNOSIS SYSTEM
(A/C AUTO AMP.)
DIAGNOSIS SYSTEM (A/C AUTO AMP.)
CONSULT Function (HVAC)INFOID:0000000009463103
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a di scharged battery and no-start condition.
CONSULT can display each diagnosis item us ing the diagnosis test modes as shown.
CONSULT application items
SELF-DIAGNOSTIC RESULT
Refer to HAC-31, "DTC Index".
Display Item List
Diagnosis mode Description
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.
Work support Changes the setting for each system function.
Active Test The signals used to activate each device are forcibly supplied from A/C auto amp.
ECU Identification Displays the A/C auto amp. number.
Configuration • The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing A/C auto amp.
DTC Items
(CONSULT screen terms) Diagnostic item is detected when... Possible cause
U1000 CAN COMM CIRCUIT When 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 55 °C (131 °F) or more • 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 −30 °C ( −22 °F) or less
B2578 IN-CAR SENSOR (OUT OF RANGE
[LOW]) Detected temperature at in-vehicle sen-
sor 55 °C (131 °F) or more • In-vehicle sensor
• A/C auto amp.
• Harness and connector (In-vehicle sensor circuit is open,
or there is a short in the circuit)
B2579
IN-CAR SENSOR (OUT OF RANGE
[HI]) Detected temperature at in-vehicle sen-
sor −30 °C ( −22 °F) or less
B2581 EVAP TEMP SEN (SHORT) Detected temperature at intake sensor
55 °C (131 °F) or more • 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
− 30 °C ( −22 °F) or less
B2630
*SUNLOAD SEN (SHORT) Detected calorie at sunload sensor
1395 w/m2 (1200 kcal/m2·h) • 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 0 w/
m2 (0 kcal/m2·h)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DIAGNOSIS SYSTEM (A/C AUTO AMP.)HAC-25
< SYSTEM DESCRIPTION > [AUTOMATIC AIR CONDITIONER]
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*: Perform self-diagnosis under sunshine. When performing indoors, aim a light (more than 60 W) at sunload sensor, otherwise se lf-diag-
nosis reports an error even though the sunload sensor is functioning normally.
DATA MONITOR
Display item list
B2632 DR AIRMIX ACTR (SHORT) Air mix door PBR LH position 5% or
less • Air mix door motor LH
• 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 LH position 95% or
more
B2634 PASS AIRMIX ACTR (SHORT) Air mix door PBR RH position 5% or
less • Air mix door motor RH
• A/C auto amp.
• Harness and connector (CAN communication line is open
or shorted)
(Air mix door motor is open or
shorted)
B2635 PASS AIRMIX ACTR (OPEN)
Air mix door PBR RH position 95% or
more
B2636 DR VENT DOOR FAIL When the malfunctioning door position
is detected at VENT position • Mode door motor
• A/C auto amp.
• Harness and connector (CAN communication line is open
or shorted)
(Mode door motor is open or
shorted)
B2637 DR B/L DOOR FAIL
When the malfunctioning door position
is detected at B/L position
B2638 DR D/F1 DOOR FAIL When the malfunctioning door position
is detected at FOOT position
B2639 DR DEF DOOR FAIL When the malfunctioning door position
is detected at DEF position
B263D FRE DOOR FAIL When the malfunctioning intake door
position is detected at FRE position • Intake door motor
• A/C auto amp.
• Harness and connector (CAN communication line is open
or shorted)
(Intake door motor is open or
shorted)
B263E 20P FRE DOOR FAIL
When the malfunctioning intake door
position is detected at 20%FRE posi-
tion
B263F REC DOOR FAIL When the malfunctioning intake door
position is detected at REC position
B2654 D/F2 DOOR FAIL When the malfunctioning door position
is detected at D/F position • Mode door motor
• A/C auto amp.
• Harness and connector (CAN communication line is open
or shorted)
(Mode door motor is open or
shorted)
B2655 B/L2 DOOR FAIL
When the malfunctioning door position
is detected at B/L2 position
DTC
Items
(CONSULT screen terms) Diagnostic item is detected when... Possible cause
Monitor item [Unit] Description
AMB TEMP SEN [ °C] Ambient sensor value converted from ambient sensor signal received from ambient
sensor
IN-VEH TEMP [ °C] In-vehicle sensor value converted from in-vehicle sensor signal received from in-vehi-
cle sensor
INT TEMP SEN [ °C] Intake sensor value converted from intake sensor signal received from intake sensor
SUNLOAD SEN [w/m
2]Sunload sensor value converted from sunload sensor signal received from sunload
sensor
AMB SEN CAL [ °C] Ambient sensor value calculated by A/C auto amp.
IN-VEH CAL [ °C] In-vehicle sensor value calculated by A/C auto amp.
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.
COMP REQ SIG [On/Off] Displays A/C switch ON/OFF status transmitted to other units via CAN communication
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-26
< SYSTEM DESCRIPTION >[AUTOMATIC AIR CONDITIONER]
DIAGNOSIS SYSTEM
(A/C AUTO AMP.)
WORK SUPPORT
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10V or less, the setting of
WORK SUPPORT may be cancelled.
ACTIVE TEST
HVAC TEST
FAN REQ SIG [On/Off] Displays blower switch ON/OFF status transmitted to other units via CAN communica-
tion
FAN DUTY [%] Duty ratio of blower motor judged by A/C auto amp.
XM Target discharge air temperature judged by A/C auto amp. according to the tempera-
ture setting and the value from each sensor
PA TARGET A/TEMP Target discharge front air temperature (passenger side) judged by A/C auto amp. de-
pending on the temperature setting and the value from each sensor.
ENG COOL TEMP [ °C] Water temperature signal value received from ECM via CAN communication
VEHICLE SPEED [km/h
(mph)] Vehicle speed signal value received from meter via CAN communication
Monitor item [Unit] Description
Work item Description Reference
TEMP SET CORRECT
(Setting of difference between tem-
perature setting and control tempera-
ture) If the temperature felt by the customer is different than the airflow
temperature controlled by the temperature setting, the auto ampli-
fier control temperature can be adjusted to compensate for the
temperature setting. HAC-50, "Temperature
Setting Trimmer"
REC MEMORY SET
(REC memory function setting) • If the ignition switch is turned to the OFF position while the REC
switch is set to ON (recirculation), “With” or “Without” of the REC
switch ON (recirculation) condition can be selected.
• If “” was set, the REC switch will be ON (recirculation) when turn-
ing the ignition switch to the ON position again.
• If “Without” was set, the air inlets will be controlled automatically when turning the ignition switch to the ON position again. HAC-51, "Inlet Port
Memory Function (REC)"
FRE MEMORY SET
(FRE memory function setting) • If the ignition switch is turned to the OFF position while the FRE
switch is set to ON (fresh air intake), “With” or “” of the FRE
switch ON (fresh air intake) condition can be selected.
• If “With” was set, the FRE switch will be ON (fresh air intake) when turning the ignition switch to the ON position again.
• If “Without” was set, the air inlets will be controlled automatically when turning the ignition switch to the ON position again. HAC-50, "Inlet Port
Memory Function (FRE)"
BLOW SET
(Blow setting to DEF in FOOT mode) In the FOOT mode, the air blowing to the DEF can change ON/
OFF. HAC-50, "Foot Position
Setting Trimmer"
TARGET EVAPORATOR TEMP UP-
PER LIMIT SETTING Set the target evaporator upper temperature limit.
HAC-51, "Target Evapo-
rator Temp Upper Limit"
Test item Description
HVAC TEST The 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 VENT B/L D/F1 D/F2 DEF DEF
Intake door position REC REC 20%FRE FRE FRE FRE FRE
Air mix door position
(driver & passenger
side) FULL COLD FULL COLD FULL COLD FULL HOT FULL HOT FULL HOT FULL HOT
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

A/C AUTO AMP.HAC-29
< ECU DIAGNOSIS INFORMATION > [AUTOMATIC AIR CONDITIONER]
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Te r m i n a l N o . (Wire color) Description
ConditionVa l u e
(Approx.)
+ − Signal name Input/
Output
1
(L) —CAN-H Input/
Output ——
2
(B) —Ground — — —
3
(SB) Ground Battery power supply Input Ignition switch OFF Battery voltage
4
(BR) Ground TX FR Output Ignition switch ON 0 – 5 V
7
(L) Ground Ambient sensor signal Input Ignition switch ON 0 – 4.8 V
Output voltage varies with ambi- ent temperature
8
*1
(BR) Ground
Heated steering wheel
switch signal InputIgnition
switch ON Heated steer-
ing wheel
switch: While
pressing 0 V
Other than the
above 12 V
9
(G) Ground Sunload sensor signal Input Ignition switch ON 0 – 4.8 V
Output voltage varies with sun- load amount
13
(P) Ground IGN 2 Input Ignition switch ON Battery voltage
15
(Y) Ground RR DEF switch Output Defroster
switch OFF 0 V
ON 12 V
16
(G) Ground Each door motor LIN signal
Input/
Output Ignition switch ON
17
(W) GroundEach door motor power
supply Output Ignition switch ON 12 V
18
(P) Ground
Front blower motor control
signal Output• Ignition switch ON
• Front fan speed: 1st
speed (manual)
20
*1
(P) Ground
Heated steering wheel relay
control signal OutputIgnition
switch ON Within 30 sec-
onds after
turning ON
the heated
steering
switch. 0 V
Other than the
above 12 V
21
(P) —CAN-L Input/
Output ——
SJIA1453J
JSIIA0096ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-30
< ECU DIAGNOSIS INFORMATION >[AUTOMATIC AIR CONDITIONER]
A/C AUTO AMP.
*1: With heated steering wheel
DTC Inspection Priority ChartINFOID:0000000009463105
If some DTCs are displayed at the same time, perfo
rm inspections one by one based on the following priority
chart.
22
(B) —Ground — — —
23
(G) Ground Ignition power supply Input Ignition switch ON Battery voltage
24
(V) Ground RX FR Input Ignition switch ON 0 – 5 V
26
(W) — Sensor ground — — —
27
(G) Ground In-vehicle sensor signal Input Ignition switch ON 0 – 4.8 V
Output voltage varies with in-vehi-
cle temperature
28
(P) Ground Intake sensor signal Input Ignition switch ON 0 – 4.8 V
Output voltage varies with front evaporator fin temperature
35
(P) Ground RR DEF feedback Input
Defroster
switch OFF 0 V
ON 12 V
37
(B) — ACTR Ground — — —
40
(G) Ground
ECV (electrical control
valve) control signal Output• Ignition switch ON
• Active test (HVAC test):
MODE 1
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ − Signal name Input/
Output
SJIA1607E
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

A/C AUTO AMP.HAC-31
< ECU DIAGNOSIS INFORMATION > [AUTOMATIC AIR CONDITIONER]
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DTC IndexINFOID:0000000009463106
Priority Detected items (DTC) 1 • U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)
2 • B257B: AMB TEMP SEN (SHORT)
• B257C: AMB TEMP SEN (OPEN)
• B2578: IN CAR SENSOR (OUT OF RANGE[LOW])
• B2579: IN CAR SENSOR (OUT OF RANGE[HI])
• B2581: EVAP TEMP SEN (SHORT)
• B2582: EVAP TEMP SEN (OPEN)
• B2630: SUNLOAD SEN (SHORT)
• B2631: SUNLOAD SEN (OPEN)
• B2632: DR AIRMIX ACTR (SHORT)
• B2633: DR AIRMIX ACTR (OPEN)
• B2634: PASS AIRMIX ACTR (SHORT)
• B2635: PASS AIRMIX ACTR (OPEN)
• B2636: DR VENT DOOR FAIL
• B2637: DR B/L DOOR FAIL
• B2638: DR D/F1 DOOR FAIL
• B2639: DR DEF DOOR FAIL
• B263D: FRE DOOR FAIL
• B263E: 20P FRE DOOR FAIL
• B263F: REC DOOR FAIL
• B2654: D/F2 DOOR FAIL
• B2655: B/L2 DOOR FAIL
• B27B0: A/C AUTO AMP.
DTC Items
(CONSULT screen terms) Reference
U1000 CAN COMM CIRCUIT HAC-55, "DTC Logic"
U1010 CONTROL UNIT (CAN)HAC-56, "DTC Logic"
B257B AMB TEMP SEN (SHORT) HAC-60, "DTC Logic"
B257C AMB TEMP SEN (OPEN) HAC-60, "DTC Logic"
B2578 IN CAR SENSOR (OUT OF RANGE [LOW])HAC-57, "DTC Logic"
B2579 IN CAR SENSOR (OUT OF RANGE [HI])HAC-57, "DTC Logic"
B2581 EVAP TEMP SEN (SHORT)HAC-63, "DTC Logic"
B2582 EVAP TEMP SEN (OPEN)HAC-63, "DTC Logic"
B2630*SUNLOAD SEN (SHORT)HAC-66, "DTC Logic"
B2631*SUNLOAD SEN (OPEN)HAC-66, "DTC Logic"
B2632 DR AIRMIX ACTR (SHORT) HAC-69, "DTC Logic"
B2633 DR AIRMIX ACTR (OPEN)HAC-69, "DTC Logic"
B2634 PASS AIRMIX ACTR (SHORT)HAC-71, "DTC Logic"
B2635 PASS AIRMIX ACTR (OPEN)HAC-71, "DTC Logic"
B2636 DR VENT DOOR FAILHAC-73, "DTC Logic"
B2637 DR B/L DOOR FAILHAC-73, "DTC Logic"
B2638 DR D/F1 DOOR FAILHAC-73, "DTC Logic"
B2639 DR DEF DOOR FAILHAC-73, "DTC Logic"
B263D FRE DOOR FAIL HAC-75, "DTC Logic"
B263E 20P FRE DOOR FAILHAC-75, "DTC Logic"
B263F REC DOOR FAILHAC-75, "DTC Logic"
B2654 D/F2 DOOR FAILHAC-73, "DTC Logic"
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-32
< ECU DIAGNOSIS INFORMATION >[AUTOMATIC AIR CONDITIONER]
A/C AUTO AMP.
*: Perform self-diagnosis under direct sunlight. When performing indoors, aim a light (more than 60 W) at sunload sensor, other
wise self-
diagnosis reports an error even though the sunload sensor is functioning normally. B2655 B/L2 DOOR FAIL
HAC-73, "DTC Logic"
B27B0 A/C AUTO AMP. HAC-77, "DTC Logic"
DTCItems
(CONSULT screen terms) Reference
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM