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Nissan Juke F15. Manual - part 854

SYSTEM SETTING

HAC-51

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

HAC

When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V

or less, the setting of the REC memory function may be cancelled.

Inlet Port Memory Function (FRE)

INFOID:0000000012200032

DESCRIPTION

• If the ignition switch is turned to the OFF position while the intake switch is set to OFF (fresh air intake), “Per-

form the memory” or “Do not perform the memory” of intake switch OFF (fresh air intake) condition can be

selected.

• If “Perform the memory” was set, the intake switch will be OFF (fresh air intake) when turning the ignition

switch to the ON position again.

• If “Do not perform the memory” was set, the air inlets will be controlled automatically when turning the igni-

tion switch to the ON position again.

HOW TO SET

With CONSULT

Perform the “FRE MEMORY SET” of HVAC work support item.

NOTE:

When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V

or less, the setting of the FRE memory function may be cancelled.

Foot Position Setting Trimmer

INFOID:0000000012200033

DESCRIPTION

In FOOT mode, the air blowing to DEF can change ON/OFF.

HOW TO SET

With CONSULT

Perform the “BLOW SET” of HVAC work support item.

NOTE:

When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V

or less, the setting of the discharge air mix ratio in FOOT mode may be cancelled.

Work support items

Display

Setting

FRE MEMORY SET

WITHOUT

Perform the memory of manual FRE

WITH (initial status)

Do not perform the memory of manual FRE (auto control)

Work support items

Display

Defroster door position

Auto control

Manual control

BLOW SET

Mode1 (initial status)

OPEN

Mode2

OPEN

Mode3

OPEN

Mode4

HAC-52

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

DOOR MOTOR STARTING POSITION RESET

DOOR MOTOR STARTING POSITION RESET

Description

INFOID:0000000012200034

• Reset signal is transmitted from A/C auto amp. to air mix door motor and mode door motor. Starting position

reset can be performed.

NOTE:

During reset, DEF switch indicator blinks.

• When air mix door motor or mode door motor is removed and installed, always perform door motor starting

position reset.

Work Procedure

INFOID:0000000012200035

PERFORM DOOR MOTOR STARTING POSITION RESET

With CONSULT

1. Turn ignition switch ON.

2. Select “Door Motor Starting Position Reset” in “ACTIVE TEST” mode of “HVAC” using CONSULT.

3. Touch “Start” and wait a few seconds.

4. Make sure the “COMPLETED” is displayed on CONSULT screen.

>> INSPECTION END

U1000 CAN COMM CIRCUIT

HAC-53

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

HAC

DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000012200036

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-board mul-

tiplex communication line with high data communication speed and excellent error detection ability. A modern

vehicle is equipped with many ECMs, and each control unit shares information and links with other control

units during operation (not independent). In CAN communication, 2 control units are connected with 2 commu-

nication lines (CAN-L line and CAN-H line) allowing a high rate of information transmission with less wiring.

Each control unit transmits/receives data but selectively reads required data only.

Refer to

LAN-30, "CAN COMMUNICATION SYSTEM : CAN Communication Signal Chart"

for details of the

communication signal.

DTC Logic

INFOID:0000000012200037

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

1. Turn ignition switch ON and wait at least 2 seconds or more.

2. Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.

3. Check DTC.
Is DTC detected?

YES

>> Refer to

HAC-53, "Diagnosis Procedure"

>> Check intermittent incident. Refer to

GI-45, "Intermittent Incident"

Diagnosis Procedure

INFOID:0000000012200038

CHECK CAN COMMUNICATION SYSTEM

Check CAN communication system. Refer to

LAN-17, "Trouble Diagnosis Flow Chart"

>> INSPECTION END

DTC

Items

(CONSULT screen

terms)

DTC detection condition

Possible cause

U1000

CAN COMM CIR-
CUIT

When A/C auto amp. is not transmitting or receiving CAN
communication signal for 2 seconds or more.

CAN communication system

HAC-54

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

U1010 CONTROL UNIT (CAN)

U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000012200039

Initial diagnosis of A/C auto amp.

DTC Logic

INFOID:0000000012200040

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

1. Turn ignition switch ON.

2. Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.

3. Check DTC.
Is DTC detected?

YES

>> Refer to

HAC-54, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000012200041

REPLACE A/C AUTO AMP.

Replace A/C auto amp. Refer to

HAC-93, "Removal and Installation"

>> INSPECTION END

DTC

Items

(CONSULT screen terms)

DTC detection condition

Possible cause

U1010

CONTROL UNIT(CAN)

When detecting error during the initial diagnosis of CAN
controller of A/C auto amp.

A/C auto amp.

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