Nissan Titan A60. Manual — part 583
AUTOMATIC AIR CONDITIONER SYSTEM
HAC-15
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
MAGNET CLUTCH CONTROL
When A/C switch or DEF switch is pressed, front air control inputs compressor ON signal to BCM.
BCM sends compressor ON signal to ECM and front air control, via CAN communication line.
ECM judges whether compressor can be turned ON, based on each sensor status (refrigerant pressure sen-
sor signal, throttle angle sensor, etc.). If it judges compressor can be turned ON, it sends compressor ON sig-
nal to IPDM E/R, via CAN communication line.
Upon receipt of compressor ON signal from ECM, IPDM E/R turns air conditioner relay ON to operate com-
pressor.
Discharge Air Flow
INFOID:0000000006164678
WJIA2197E
Mode door position
Air outlet/distribution
Vent
Foot
Defroster
95%
5%
—
60%
40%
—
—
70%
30%
—
60%
40%
—
10%
90%
WJIA0540E
HAC-16
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
AUTOMATIC AIR CONDITIONER SYSTEM
Switches And Their Control Function
INFOID:0000000006164679
AWIIA0572GB
AWIIA0359GB
DIAGNOSIS SYSTEM (HVAC)
HAC-17
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
DIAGNOSIS SYSTEM (HVAC)
CONSULT-III Function (HVAC)
INFOID:0000000006164680
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
SELF-DIAGNOSIS
Display Item List
DATA MONITOR
Display Item List
Diagnostic mode
Description
SELF DIAGNOSTIC RESULT
Displays Front air control self-diagnosis results.
DATA MONITOR
Displays Front air control input/output data in real time.
CAN DIAG SUPPORT MNTR
The result of transmit/receive diagnosis of CAN communication can be read.
ECU IDENTIFICATION
Front air control part number can be read.
DTC
Description
Reference page
B2573
Battery voltage out of range
B2578
In-vehicle sensor circuit out of range (low)
HAC-59, "In-Vehicle Sensor Diagnosis Procedure"
B2579
In-vehicle sensor circuit out of range (high)
B257B
Ambient sensor circuit short
HAC-57, "Ambient Sensor Component Inspection"
B257C
Ambient sensor circuit open
B257F
Optical sensor (Driver) circuit open or short
HAC-62, "Optical Sensor Diagnosis Procedure"
B2580
Optical sensor (Passenger) circuit open or short
B2581
Intake sensor circuit short
HAC-65, "Intake Sensor Component Inspection"
B2582
Intake sensor circuit open
B2587
Stuck button
VTL-8, "Removal and Installation"
U1000
CAN bus fault
LAN-14, "Trouble Diagnosis Flow Chart"
Monitor item
Value
Contents
BATT VIA CAN
"V"
Displays battery voltage signal.
IGN VIA CAN
"ON/OFF"
Displays ignition switch signal.
DVR SUNLD SEN
"w/m2"
Displays optical sensor (driver) signal.
PAS SUNLD SEN
"w/m2"
Displays optical sensor (passenger) signal.
AMB TEMP SEN
"
°C"
Displays ambient sensor signal.
EVAP TEMP SEN
"
°C"
Displays intake sensor signal.
INCAR TMP SEN
"
°C"
Displays in-vehicle sensor signal.
MODE FDBCK
"V"
Displays mode door motor feedback signal.
DVR MIX FDBCK
"V"
Displays air mix door motor (driver) feedback signal.
PAS MIX FDBCK
"V"
Displays air mix door motor (passenger) feedback signal.
DEF FDBCK
"V"
Displays defroster door motor feedback signal.
RECIRC
"ON/OFF"
Displays recirculation switch signal.
DEFROST
"ON/OFF"
Displays defroster switch signal.
AUTO
"ON/OFF"
Displays AUTO switch signal.
A/C
"ON/OFF"
Displays A/C switch signal.
HAC-18
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
DIAGNOSIS SYSTEM (HVAC)
L TEMP UP
"ON/OFF"
Displays driver side temperature control dial (temp increase) signal.
L TEMP DOWN
"ON/OFF"
Displays driver side temperature control dial (temp decrease) signal.
R TEMP UP
"ON/OFF"
Displays passenger temperature control dial (temp increase) signal.
R TEMP DOWN
"ON/OFF"
Displays passenger temperature control dial (temp decrease) signal.
RR DEFOG
"ON/OFF"
Displays rear defroster request signal.
FAN UP
"ON/OFF"
Displays blower motor (blower speed increase) signal.
FAN DOWN
"ON/OFF"
Displays blower motor (blower speed decrease) signal.
MODE SELECT
"DTNT"
Displays selected mode position.
DUAL MODE
"ON/OFF"
Displays dual mode status.
MODE D STATUS
"V"
Displays mode d status signal.
Monitor item
Value
Contents
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