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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Da

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CA

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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)"

 or 

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

VTL-7, "Removal and Installation"

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