2008 NISSAN TEANA sensor

HAC-3
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HAC
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P WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Foot Position Setting Trimmer .............
110
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Inlet Port Memory Function (FRE) .......
111
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Inlet Port Memory Function (REC) ......
111
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM ..........................................................................
111
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Description & Inspection .............................
112
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Temperature Setting Trimmer ....................
114
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Foot Position Setting Trimmer ....................
114
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Inlet Port Memory Function (FRE) ..............
115
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Inlet Port Memory Function (REC) .............
115
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Gas Sensor Sensitivity Adjustment Func-
tion (With Intelligent Air Conditioner System) ........
116
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Clean Switch Interlocking Movement
Change Function (With Intelligent Air Conditioner
System) .................................................................
116
FUNCTION DIAGNOSIS ............................117
COMPRESSOR CONTROL FUNCTION ..........117
Description ............................................................117
Fail-Safe ................................................................118
Component Part Location .....................................118
Component’s Role .................................................120
AUTOMATIC AIR CONDITIONER SYSTEM ...122
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM ..................................................................
122
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : System Diagram ..................................
122
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : System Description .............................
122
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Component Part Location ....................
129
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Component Description .......................
132
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM ..........................................................................
132
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : System Diagram .........................................
132
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : System Description .....................................
133
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Component Part Location ...........................
138
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Component Description ..............................
141
PLASMACLUSTER SYSTEM ..........................142
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM ..........................................................................
142
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : System Diagram .........................................
142
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : System Description .....................................
142
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Component Part Location ...........................
143
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Component Description ..............................
144
MODE DOOR CONTROL SYSTEM ................145
System Diagram ....................................................145
System Description ................................................145
AIR MIX DOOR CONTROL SYSTEM .............147
System Diagram ....................................................147
System Description ................................................147
INTAKE DOOR CONTROL SYSTEM .............149
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM ...................................................................
149
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : System Diagram ..................................
149
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : System Description ..............................
149
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM ..........................................................................
150
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : System Diagram .........................................
150
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : System Description .....................................
150
BLOWER MOTOR CONTROL SYSTEM ........152
System Diagram ....................................................152
System Description ................................................152
MAGNET CLUTCH CONTROL SYSTEM .......154
System Diagram ....................................................154
System Description ................................................154
CAN COMMUNICATION SYSTEM .................155
System Description ................................................155
DIAGNOSIS SYSTEM (HVAC) .......................156
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM ...................................................................
156
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : CONSULT-III Function .........................
156
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM ..........................................................................
159
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : CONSULT-III Function ................................
159
COMPONENT DIAGNOSIS .......................164
U1000 CAN COMM CIRCUIT .........................164
Description .............................................................164

HAC-4
DTC Logic ..............................................................164
Diagnosis Procedure ............................................164
U1010 CONTROL UNIT (CAN) .......................165
Description .............................................................165
DTC Logic ..............................................................165
Diagnosis Procedure .............................................165
B257B, B257C AMBIENT SENSOR ...............166
Description .............................................................166
DTC Logic ..............................................................166
Diagnosis Procedure .............................................167
Component Inspection ...........................................168
B2578, B2579 IN-VEHICLE SENSOR .............169
Description .............................................................169
DTC Logic ..............................................................169
Diagnosis Procedure .............................................170
Component Inspection ...........................................171
B2581, B2582 INTAKE SENSOR ....................172
Description .............................................................172
DTC Logic ..............................................................172
Diagnosis Procedure .............................................172
Component Inspection ...........................................173
B262A, B262B, B2657, B2658 GAS SENSOR .175
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM ..........................................................................
175
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Description ..................................................
175
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : DTC Logic ...................................................
175
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Diagnosis Procedure ...................................
176
B2630, B2631 SUNLOAD SENSOR ...............178
Description .............................................................178
DTC Logic ..............................................................178
Diagnosis Procedure .............................................179
Component Inspection ...........................................180
B2632, B2633 AIR MIX DOOR MOTOR
(DRIVER SIDE) ................................................
181
Description .............................................................181
DTC Logic ..............................................................181
Diagnosis Procedure .............................................182
B2634, B2635 AIR MIX DOOR MOTOR (PAS-
SENGER SIDE) ................................................
183
Description .............................................................183
DTC Logic ..............................................................183
Diagnosis Procedure .............................................184
B2636, B2637, B2638, B2639, B2654, B2655
MODE DOOR MOTOR ....................................
185
Description .............................................................185
DTC Logic ..............................................................185
Diagnosis Procedure .............................................186
B263D B263E, B263F, B2656 INTAKE DOOR
MOTOR .............................................................
188
Description ............................................................188
DTC Logic .............................................................188
Diagnosis Procedure .............................................189
POWER SUPPLY AND GROUND CIRCUIT ....191
A/C AUTO AMP. ......................................................191
A/C AUTO AMP. : Diagnosis Procedure ...............191
A/C AUTO AMP. ...............................................192
Description ............................................................192
Component Function Check .................................192
Diagnosis Procedure .............................................192
BLOWER MOTOR ............................................193
Description ............................................................193
Component Function Check ................................193
Diagnosis Procedure .............................................193
Component Inspection ..........................................196
MAGNET CLUTCH ...........................................197
Description ............................................................197
Component Function Check .................................197
Diagnosis Procedure .............................................197
IONIZER ............................................................199
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM .........................................................................
199
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Description .................................................
199
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Component Function Check .......................
199
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Diagnosis Procedure ..................................
199
ECU DIAGNOSIS ......................................202
A/C AUTO AMP. ...............................................202
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM ..................................................................
202
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Reference Value .................................
202
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Wiring Diagram - AIR CONDITIONER
CONTROL SYSTEM - ..........................................
203
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Fail-Safe ..............................................
211
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : DTC Inspection Priority Chart ...........
212
WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : DTC Index ...........................................
212
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM .........................................................................
213
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Reference Value .........................................
213

HAC-14
< FUNCTION DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
COMPRESSOR CONTROL FUNCTION
PASSENGER COMPARTMENT
1. Refrigerant pressure sensor 2. Compressor (magnet clutch) 3. Ambient sensor
JPIIA0992ZZ

COMPRESSOR CONTROL FUNCTION
HAC-15
< FUNCTION DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
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Component’s RoleINFOID:0000000003846300
1. Intake door motor 2. Air mix door motor (passenger side) 3. Air mix door motor (driver side)
4. Mode door motor 5. Sunload sensor 6. In-vehicle sensor
7. A/C auto amp. 8. Intake sensor 9. Blower motor
JPIIA0997ZZ

HAC-16
< FUNCTION DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
COMPRESSOR CONTROL FUNCTION
Component Description
Refrigerant pressure sensorEC-348, "
Description"
CompressorHAC-72, "Description"
Ambient sensorHAC-44, "Description"
Intake door motorHAC-63, "Description"
Air mix door motor (driver side)HAC-56, "Description"
Air mix door motor (passenger side)HAC-58, "Description"
Mode door motorHAC-60, "Description"
Sunload sensorHAC-53, "Description"
In-vehicle sensorHAC-47, "Description"
A/C auto amp. HAC-67, "Description"
Intake sensorHAC-50, "Description"
Blower motorHAC-68, "Description"

AUTOMATIC AIR CONDITIONER SYSTEM
HAC-17
< FUNCTION DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
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HAC
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AUTOMATIC AIR CONDITIONER SYSTEM
System DiagramINFOID:0000000003846301
CONTROL SYSTEM
The control system consists of input sensors, switches, the A/C auto amp. (microcomputer) and outputs. The
relationship of these components is as shown in the figure below:
System DescriptionINFOID:0000000003846302
CONTROL OPERATION
Display
The operation status of the system is displayed on the screen.
JPIIA0878GB
JPIIA0879ZZ

HAC-22
< FUNCTION DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
AUTOMATIC AIR CONDITIONER SYSTEM
AIR CONDITIONER LAN CONTROL SYSTEM
The LAN (Local Area Network) system consists of the A/C auto amp., the mode door motor, the air mix door
motors and the intake door motor.
A configuration of these components is as shown in the figure below.
SYSTEM CONSTRUCTION
A small network exists between the A/C auto amp., the mode door motor, the air mix door motor and the intake
door motor. The A/C auto amp. and motors are connected by data transmission lines and motor power supply
lines. The LAN network is built through the ground circuits of each door motor.
Addresses, motor opening angle signals, motor stop signals and error checking messages are all transmitted
through the data transmission lines connecting the A/C auto amp. and each door motor.
The following functions are contained in LCUs built into the mode door motor, the air mix door motors and the
intake door motor.
 Address
 Motor opening angle signals
 Data transmission
 Motor stop and drive decision
 Opening angle sensor (PBR function)
 Comparison
JSIIA1186GB
JSIIA1129GB

AUTOMATIC AIR CONDITIONER SYSTEM
HAC-23
< FUNCTION DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
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 Decision (A/C auto amp. indicated value and motor opening angle comparison)
Operation
The A/C auto amp. receives data from each of the sensors. The A/C auto amp. sends mode door, the air mix
door and the intake door opening angle data to the mode door motor LCU, the air mix door motor LCUs and
the intake door motor LCU.
The mode door motor, the air mix door motors and the intake door motor read their respective signals accord-
ing to the address signal. Opening angle indication signals received from the A/C auto amp. and each of the
motor position sensors is compared by the LCUs in each door motor with the existing decision and opening
angles. Next, HOT/COLD, DEF/VENT, OPEN/SHUT or FRE/REC operation is selected. The new selection
data is returned to the A/C auto amp.
Transmission Data and Transmission Order
A/C auto amp. data is transmitted consecutively to each of the door motors following the form as shown in the
figure below.
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:
JSIIA1130GB
JSIIA1131GB