Nissan Frontier. Manual — part 866
HAC-18
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
INFOID:0000000010229557
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
AIR CONDITIONER
Direct Diagnostic Mode
Description
ECU Identification
The BCM part number is displayed.
Self Diagnostic Result
The BCM self diagnostic results are displayed.
Data Monitor
The BCM input/output data is displayed in real time.
Active Test
The BCM activates outputs to test components.
Work support
The settings for BCM functions can be changed.
Configuration
• The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.
CAN Diag Support Mntr
The result of transmit/receive diagnosis of CAN communication is displayed.
System
Sub System
Direct Diagnostic Mode
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Se
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Da
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Mo
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A
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T
est
W
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rk support
Co
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igu
rat
ion
CA
N Diag
Su
pp
ort Mn
tr
Door lock
DOOR LOCK
×
×
×
Rear window defogger
REAR DEFOGGER
×
×
Warning chime
BUZZER
×
×
Interior room lamp timer
INT LAMP
×
×
×
Remote keyless entry system
MULTI REMOTE ENT
×
×
×
Exterior lamp
HEAD LAMP
×
×
×
Wiper and washer
WIPER
×
×
×
Turn signal and hazard warning lamps FLASHER
×
×
Air conditioner
AIR CONDITIONER
×
Combination switch
COMB SW
×
BCM
BCM
×
×
×
×
×
Immobilizer
IMMU
×
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Vehicle security system
THEFT ALM
×
×
×
RAP system
RETAINED PWR
×
×
×
Signal buffer system
SIGNAL BUFFER
×
×
TPMS
AIR PRESSURE MONITOR
×
×
×
×
Panic alarm system
PANIC ALARM
×
DIAGNOSIS SYSTEM (BCM)
HAC-19
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
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AIR CONDITIONER : CONSULT Function (BCM - AIR CONDITIONER)
INFOID:0000000010229558
DATA MONITOR
Monitor Item [Unit]
Description
IGN ON SW [On/Off]
Indicates condition of ignition switch ON position.
FAN ON SIG [On/Off]
Indicates condition of fan switch.
AIR COND SW [On/Off]
Indicates condition of A/C switch.
HAC-20
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
SELF-DIAGNOSIS FUNCTION
SELF-DIAGNOSIS FUNCTION
Front Air Control Self-Diagnosis
INFOID:0000000009478272
A/C SYSTEM SELF-DIAGNOSIS FUNCTION
The self-diagnosis function is built into the front air control to quickly locate the cause of malfunctions.
DESCRIPTION
The self-diagnostic system diagnoses sensors, CAN system, and battery voltage on front air control Refer to
applicable sections (items) for details. Fault codes (if any are present) will be displayed in the ambient temper-
ature display area. Refer to
HAC-20, "Front Air Control Self-Diagnosis Code Chart"
.
SELF-DIAGNOSTIC MODE
1. Press the OFF switch.
2. Press the FLOOR/DEF (
) and DEF (
) mode switches
together and release on the front air control.
3. Press the REC (
) to enter self diagnostic mode.
4. Turn ignition switch OFF to exit out of self-diagnostic mode.
Front Air Control Self-Diagnosis Code Chart
INFOID:0000000009478273
SELF-DIAGNOSTIC CODE CHART
AWIIA0938ZZ
Code No.
Reference page
03
Battery voltage out of range
CHG-2, "Work Flow (With EXP-800 NI or GR8-1200 NI)"
CHG-5, "Work Flow (Without EXP-800 NI or GR8-1200 NI)"
30
In-vehicle sensor circuit out of range (low)
HAC-51, "In-Vehicle Sensor Diagnosis Procedure"
31
In-vehicle sensor circuit out of range (high)
40
Ambient sensor circuit short
HAC-48, "Ambient Sensor Diagnosis Procedure"
41
Ambient sensor circuit open
50
Optical sensor (Driver) circuit open or short
HAC-54, "Optical Sensor Diagnosis Procedure"
52
Optical sensor (Passenger) circuit open or short
56
Intake sensor circuit short
HAC-56, "Intake Sensor Diagnosis Procedure"
57
Intake sensor circuit open
80
CAN bus fault
LAN-14, "Trouble Diagnosis Flow Chart"
90
Stuck button
MODE DOOR MOTOR
HAC-21
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
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DTC/CIRCUIT DIAGNOSIS
MODE DOOR MOTOR
System Description
INFOID:0000000009478274
SYSTEM DESCRIPTION
Component Parts
Mode door control system components are:
• Front air control
• Mode door motor
• PBR (built into mode door motor)
• In-vehicle sensor
• Ambient sensor
• Optical sensor
• Intake sensor
System Operation
The mode door position (vent, B/L, foot, D/F, and defrost) is set by the front air control by means of the mode
door motor. When a mode door position is selected on the front air control, voltage is applied to one circuit of
the mode door motor while ground is applied to the other circuit, causing the mode door motor to rotate. The
direction of rotation is determined by which circuit has voltage applied to it, and which one has ground applied
to it. The front air control monitors the mode door position by measuring the voltage signal on the PBR circuit.
In AUTO mode the mode door position is set by the front air control which determines the proper position
based on inputs from the in-vehicle sensor, ambient sensor, optical sensor, intake sensor, and the temperature
selected by the driver or passenger.
Mode Door Control Specification
COMPONENT DESCRIPTION
Mode Door Motor
WJIA1240E
WJIA0434E
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