Content .. 148 149 150 151 ..

Nissan Juke (2014 year). Service Repair Manual - part 150

AUTOMATIC AIR CONDITIONING SYSTEM

HAC-37

< WIRING DIAGRAM >

[AUTOMATIC AIR CONDITIONING]

HAC

JRIWC1719GB

Revision: 2013 October

2014 JUKE

HAC-38

< WIRING DIAGRAM >

[AUTOMATIC AIR CONDITIONING]

AUTOMATIC AIR CONDITIONING SYSTEM

JRIWC1720GB

Revision: 2013 October

2014 JUKE

AUTOMATIC AIR CONDITIONING SYSTEM

HAC-39

< WIRING DIAGRAM >

[AUTOMATIC AIR CONDITIONING]

HAC

JRIWC1721GB

Revision: 2013 October

2014 JUKE

HAC-40

< WIRING DIAGRAM >

[AUTOMATIC AIR CONDITIONING]

AUTOMATIC AIR CONDITIONING SYSTEM

JRIWC1722GB

Revision: 2013 October

2014 JUKE

AUTOMATIC AIR CONDITIONING SYSTEM

HAC-41

< WIRING DIAGRAM >

[AUTOMATIC AIR CONDITIONING]

HAC

JRIWC1723GB

Revision: 2013 October

2014 JUKE

HAC-42

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

DIAGNOSIS AND REPAIR WORK FLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

INFOID:0000000009754334

OVERALL SEQUENCE

DETAILED FLOW

JMKIA8652GB

Revision: 2013 October

2014 JUKE

DIAGNOSIS AND REPAIR WORK FLOW

HAC-43

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

HAC

GET INFORMATION FOR SYMPTOM

Get detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurs).

Check operation condition of the function that is malfunctioning.

>> GO TO 2.

CHECK DTC

Check DTC.

Perform the following procedure if DTC is detected.

Record DTC and freeze frame data (Print them out using CONSULT.)

Erase DTC.

Study the relationship between the cause detected by DTC and the symptom described by the customer.

Check related service bulletins for information.

Are any symptoms described and any DTC detected?

Symptom is described, DTC is detected>>GO TO 3.
Symptom is described, DTC is not detected>>GO TO 4.
Symptom is not described, DTC is detected>>GO TO 5.

CONFIRM THE SYMPTOM

Try to confirm the symptom described by the customer.
Also study the normal operation and fail-safe related to the symptom.
Verify relation between the symptom and the condition when the symptom is detected.

>> GO TO 5.

CONFIRM THE SYMPTOM

Try to confirm the symptom described by the customer.
Verify relation between the symptom and the condition when the symptom is detected.

>> GO TO 6.

PERFORM DTC CONFIRMATION PROCEDURE

Perform DTC CONFIRMATION PROCEDURE for the detected DTC, and then check that DTC is detected
again. At this time, always connect CONSULT to the vehicle, and check self diagnostic results in real time.
If two or more DTCs are detected, refer to DTC INSPECTION PRIORITY CHART, and determine trouble diag-
nosis order.
NOTE:
• Freeze frame data is useful if the DTC is not detected.
• Perform Component Function Check if DTC CONFIRMATION PROCEDURE is not included on Service

Manual. This simplified check procedure is an effective alternative though DTC cannot be detected during
this check.
If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC CONFIR-
MATION PROCEDURE.

Is DTC detected?

YES

>> GO TO 7.

>> Check according to

GI-46, "Intermittent Incident"

DETECT MALFUNCTIONING SYSTEM BY SYMPTOM DIAGNOSIS

Detect malfunctioning system according to SYMPTOM DIAGNOSIS based on the confirmed symptom in step
4, and determine the trouble diagnosis order based on possible causes and symptom.

Is the symptom described?

YES

>> GO TO 7.

>> Monitor input data from related sensors or check voltage of related module terminals using CON-

SULT.

DETECT MALFUNCTIONING PART BY DIAGNOSIS PROCEDURE

Revision: 2013 October

2014 JUKE

HAC-44

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

DIAGNOSIS AND REPAIR WORK FLOW

Inspect according to Diagnosis Procedure of the system.

Is malfunctioning part detected?

YES

>> GO TO 8.

>> Check according to

GI-46, "Intermittent Incident"

REPAIR OR REPLACE THE MALFUNCTIONING PART

Repair or replace the malfunctioning part.

Reconnect parts or connectors disconnected during Diagnosis Procedure again after repair and replace-
ment.

Check DTC. If DTC is detected, erase it.

>> GO TO 9.

FINAL CHECK

When DTC is detected in step 2, perform DTC CONFIRMATION PROCEDURE again, and then check that the
malfunction is repaired securely.
When symptom is described by the customer, refer to confirmed symptom in step 3 or 4, and check that the
symptom is not detected.

Is DTC detected and does symptom remain?

YES-1 >> DTC is detected: GO TO 7.
YES-2 >> Symptom remains: GO TO 4.
NO

>> Before returning the vehicle to the customer, always erase DTC.

Revision: 2013 October

2014 JUKE

OPERATION INSPECTION

HAC-45

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

HAC

OPERATION INSPECTION

Work Procedure

INFOID:0000000009754335

The purpose of the operational check is to check that the individual system operates normally.

CHECK MEMORY FUNCTION

Set temperature to 32

C (90

F) by operating the temperature control dial.

Press OFF switch.

Turn ignition switch OFF.

Turn ignition switch ON.

Press AUTO switch.

Check that set temperature is maintained.

Is the inspection result normal?

YES

>> GO TO 2.

>> GO TO 10.

CHECK AIR FLOW

Start engine.

Operate fan control dial.

Check that air flow changes. Check operation for all fan speeds.

Is the inspection result normal?

YES

>> GO TO 3.

>> GO TO 10.

CHECK AIR OUTLET

Operate fan control dial to set the fan speed to maximum speed.

Operate MODE switch and DEF switch.

Check that air outlets change according to each indicated air outlet by placing a hand in front of the air
outlets. Refer to

VTL-5, "System Description"

Is the inspection result normal?

YES

>> GO TO 4.

>> GO TO 10.

CHECK AIR INLET

Press intake switch to set the air inlet to recirculation. [Intake switch indicator (

side) turns ON.]

Listen to intake sound and confirm air inlets change.

Press intake switch again to set the air inlet to fresh air intake. [Intake switch indicator (

side) turns

OFF and (

side) turns ON.]

Listen to intake sound and confirm air inlets change.

Is the inspection result normal?

YES

>> GO TO 5.

>> GO TO 10.

CHECK COMPRESSOR

Press A/C switch. The A/C switch indicator is turns ON.

Check visually and by sound that the compressor operates.

Press A/C switch again The A/C switch indicator is turns OFF.

Check that compressor stops.

Is the inspection result normal?

YES

>> GO TO 6.

>> GO TO 10.

CHECK DISCHARGE AIR TEMPERATURE

Operate temperature control dial.

Check that discharge air temperature changes.

Check condition

: Engine running at normal operating temperature.

Revision: 2013 October

2014 JUKE

HAC-46

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

OPERATION INSPECTION

Is the inspection result normal?

YES

>> GO TO 7.

>> GO TO 10.

CHECK TEMPERATURE DECREASE

Operate compressor.

Operate temperature control dial and lower the set temperature to 18

C (60

F).

Check that cool air blows from the air outlets.

Is the inspection result normal?

YES

>> GO TO 8.

>> GO TO 10.

CHECK TEMPERATURE INCREASE

Operate temperature control dial and raise the set temperature to 32

C (90

F).

Check that warm air blows from the air outlets.

Is the inspection result normal?

YES

>> GO TO 9.

>> GO TO 10.

CHECK AUTO MODE

Press AUTO switch to confirm that “AUTO” is indicated on the display.

Operate temperature control dial to check that air outlet or air flow changes (the air outlet or air flow varies
depending on the ambient temperature, in-vehicle temperature, set temperature, and etc.).

Is the inspection result normal?

YES

>> INSPECTION END

>> GO TO 10.

10.

CHECK SELF-DIAGNOSIS WITH CONSULT

Perform self-diagnosis with CONSULT.

Check that any DTC is detected.

Is any DTC detected?

YES

>> Refer to

HAC-32, "DTC Index"

and perform the appropriate diagnosis.

>> GO TO 11.

11.

CHECK FAIL-SAFE ACTIVATION

Check that symptom is applied to the fail-safe activation. Refer to

HAC-32, "Fail-safe"

>> Refer to

HAC-83, "Symptom Table"

and perform the appropriate diagnosis.

Revision: 2013 October

2014 JUKE

SYSTEM SETTING

HAC-47

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

HAC

SYSTEM SETTING

Temperature Setting Trimmer

INFOID:0000000009754336

DESCRIPTION

If the temperature felt by the customer is different from the air flow temperature controlled by the temperature
setting, the A/C auto amp. control temperature can be adjusted to compensate for the temperature setting.

HOW TO SET

With CONSULT

Perform “TEMP SET CORRECT” of HVAC work support item.

NOTE:
• When

−

3.0

C (

−

F) is corrected on the temperature setting set as 25.0

C (77

F) the temperature controlled

by A/C auto amp. is 25.0

C (77

−

3.0

C (

−

F) = 22.0

C (72

F) and the temperature becomes lower than

the temperature setting.

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

V or less, the setting of the difference between the set temperature and control temperature may be can-
celled.

Inlet Port Memory Function (REC)

INFOID:0000000009754337

DESCRIPTION

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

form the memory” or “Do not perform the memory” of intake switch ON (recirculation) condition can be
selected.

• If “Perform the memory” was set, the intake switch will be ON (recirculation) 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 “REC MEMORY SET” of HVAC work support item.

NOTE:

Work support items

Display (

TEMP SET CORRECT

3.0

2.5

2.0

1.5

1.0

0.5

0 (initial status)

−

0.5

−

1.0

−

1.5

−

2.0

−

2.5

−

3.0

−

Work support items

Display

Setting

REC MEMORY SET

WITHOUT (initial status)

Perform the memory of manual REC

WITH

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

Revision: 2013 October

2014 JUKE

HAC-48

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

SYSTEM SETTING

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:0000000009754338

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:0000000009754339

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

Revision: 2013 October

2014 JUKE

DOOR MOTOR STARTING POSITION RESET

HAC-49

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

HAC

DOOR MOTOR STARTING POSITION RESET

Description

INFOID:0000000009754340

• 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:0000000009754341

PERFORM DOOR MOTOR STARTING POSITION RESET

With CONSULT

Turn ignition switch ON.

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

Touch “Start” and wait a few seconds.

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

>> INSPECTION END

Revision: 2013 October

2014 JUKE

HAC-50

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

U1000 CAN COMM CIRCUIT

DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000009754342

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-28, "CAN COMMUNICATION SYSTEM : CAN Communication Signal Chart"

for details of the

communication signal.

DTC Logic

INFOID:0000000009754343

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

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

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

Check DTC.

Is DTC detected?

YES

>> Refer to

HAC-50, "Diagnosis Procedure"

>> Check intermittent incident. Refer to

GI-46, "Intermittent Incident"

Diagnosis Procedure

INFOID:0000000009754344

CHECK CAN COMMUNICATION SYSTEM

Check CAN communication system. Refer to

LAN-15, "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

Revision: 2013 October

2014 JUKE

U1010 CONTROL UNIT (CAN)

HAC-51

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

HAC

U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000009754345

Initial diagnosis of A/C auto amp.

DTC Logic

INFOID:0000000009754346

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

Turn ignition switch ON.

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

Check DTC.

Is DTC detected?

YES

>> Refer to

HAC-51, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009754347

REPLACE A/C AUTO AMP.

Replace A/C auto amp. Refer to

HAC-90, "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.

Revision: 2013 October

2014 JUKE

HAC-52

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

B2578, B2579 IN-VEHICLE SENSOR

B2578, B2579 IN-VEHICLE SENSOR

DTC Logic

INFOID:0000000009754348

DTC DETECTION LOGIC

NOTE:
• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

HAC-

50, "DTC Logic"

• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010.

HAC-51,

"DTC Logic"

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

Turn ignition switch ON.

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

Check DTC.

Is DTC detected?

YES

>> Refer to

HAC-52, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009754349

CHECK IN-VEHICLE SENSOR POWER SUPPLY

Turn ignition switch OFF.

Disconnect in-vehicle sensor connector.

Turn ignition switch ON.

Check voltage between in-vehicle sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

>> GO TO 4.

CHECK IN-VEHICLE SENSOR GROUND CIRCUIT FOR OPEN

Turn ignition switch OFF.

Disconnect A/C auto amp. connector.

Check continuity between in-vehicle sensor harness connector and A/C auto amp harness connector.

Is the inspection result normal?

DTC

Items

(CONSULT screen terms)

DTC detection condition

Possible cause

B2578

IN-VEHICLE SENSOR

The in-vehicle sensor recognition temperature
is too high [more than 100

C (212

F)].

• In-vehicle sensor
• A/C auto amp.
• Harness or connectors

(The sensor circuit is open or short-
ed.)

B2579

The in-vehicle sensor recognition temperature
is too low [less than

−

C (

−

F)].

−

Voltage

(Approx.)

In-vehicle sensor

Connector

Terminal

M41

Ground

5 V

In-vehicle sensor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M41

M50

Existed

Revision: 2013 October

2014 JUKE

Content .. 148 149 150 151 ..