Juke F15 (2012 year). Service Repair Manual — part 254

DIAGNOSIS SYSTEM (BCM)

HAC-319

< SYSTEM DESCRIPTION >

[TYPE 5]

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AIR CONDITIONER : CONSULT-III Function (BCM - AIR CONDITIONER) (Heater and
Ventilation)

INFOID:0000000006557741

DATA MONITOR

Display item list

Monitor Item [Unit]

Contents

FAN ON SIG

[On/Off]

Displays blower motor status as judged from blower fan ON signal.

IGN SW

[On/Off]

Displays ignition switch position status as judged form ignition switch signal.

HAC-320

< ECU DIAGNOSIS INFORMATION >

[TYPE 5]

BCM

ECU DIAGNOSIS INFORMATION

BCM

List of ECU Reference

INFOID:0000000006557742

ECU

Reference

BCM

BCS-125, "Reference Value"

BCS-140, "Fail-safe"

BCS-140, "DTC Inspection Priority Chart"

BCS-141, "DTC Index"

MANUAL HEATER SYSTEM

HAC-321

< WIRING DIAGRAM >

[TYPE 5]

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WIRING DIAGRAM

MANUAL HEATER SYSTEM

Wiring Diagram

INFOID:0000000006557743

For connector terminal arrangements, harness layouts, and alphabets in a

(option abbreviation; if not

described in wiring diagram), refer to

GI-12, "Connector Information/Explanation of Option Abbreviation"

.

JCIWA0516GB

HAC-322

< BASIC INSPECTION >

[TYPE 5]

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000006557744

OVERALL SEQUENCE

DETAILED FLOW

JPIIA1673GB

DIAGNOSIS AND REPAIR WORKFLOW

HAC-323

< BASIC INSPECTION >

[TYPE 5]

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1.

INTERVIEW FOR MALFUNCTION

Interview the symptom to the customer.

>> GO TO 2.

2.

SYMPTOM CHECK

Check the symptom from the customer's information.

>> GO TO 3.

3.

BASIC INSPECTION

Check the operation of each part. Check that any symptom occurs other than the interviewed symptom.

>> GO TO 4.

4.

SELF-DIAGNOSIS WITH CONSULT-III

Perform the self-diagnosis with CONSULT-III. Check that any DTC is detected.
Is any DTC detected?

YES

>> GO TO 5.

NO

>> GO TO 6.

5.

TROUBLE DIAGNOSIS BY DTC

Perform the trouble diagnosis for the detected DTC. Specify the malfunctioning part.

>> GO TO 6.

6.

SYMPTOM DIAGNOSIS

Perform the symptom diagnosis. Specify the malfunctioning part.

>> GO TO 7.

7.

MALFUNCTION PART REPAIR

Repair or replace the malfunctioning part.

>> GO TO 8.

8.

REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT-III)

Perform the self-diagnoses with CONSULT-III. Check that any DTC is not detected. Erase DTC if DTC is
detected before the repair. Check that DTC is not detected again.

Is any or malfunction result or DTC detected?

YES

>> If DTC is detected, GO TO 5.

NO

>> GO TO 9.

9.

REPAIR CHECK (OPERATION CHECK)

Check the operation of each part.
Does it operate normally?

YES

>> INSPECTION END

NO

>> GO TO 3.

HAC-324

< BASIC INSPECTION >

[TYPE 5]

OPERATION INSPECTION

OPERATION INSPECTION

Work Procedure

INFOID:0000000006557745

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

1.

CHECK BLOWER MOTOR

1.

Operate fan control dial.

2.

Check that fan speed changes. Check operation for all fan speeds.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 6.

2.

CHECK DISCHARGE AIR

1.

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

2.

Operate MODE dial to each position.

3.

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 3.

NO

>> GO TO 6.

3.

CHECK INTAKE AIR

1.

Operate intake lever to each position.

2.

Listen to intake sound and confirm air inlets change.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 6.

4.

CHECK DISCHARGE AIR TEMPERATURE

1.

Operate temperature control dial.

2.

Check that discharge air temperature changes.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 6.

5.

CHECK TEMPERATURE INCREASE

1.

Turn temperature control dial to full hot position.

2.

Check that warm air blows from air outlets.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 6.

6.

CHECK SELF-DIAGNOSIS WITH CONSULT-III

1.

Perform self-diagnosis with CONSULT-III.

2.

Check that any DTC is detected.

Is any DTC detected?

YES

>> Perform trouble diagnosis for the detected DTC.

NO

>> Refer to

HAC-329, "Symptom Table"

and perform the appropriate diagnosis.

Check condition

: Engine running at normal operating temperature.

BLOWER MOTOR

HAC-325

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 5]

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DTC/CIRCUIT DIAGNOSIS

BLOWER MOTOR

Diagnosis Procedure

INFOID:0000000006706105

1.

CHECK SYMPTOM

Check symptom (A or B).

Which symptom is detected?

A

>> GO TO 2.

B

>> GO TO 7.

2.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check 15A fuses (Nos. 14 and 16, located in fuse block (J/B)].
NOTE:
Refer to

PG-22, "Fuse, Connector and Terminal Arrangement"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.

3.

CHECK BLOWER MOTOR POWER SUPPLY

1.

Disconnect blower motor connector.

2.

Turn ignition switch ON.

3.

Check voltage between blower motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK BLOWER RELAY

1.

Turn ignition switch OFF.

2.

Check blower relay. Refer to

HAC-327, "Component Inspection (Blower Relay)"

.

Is the inspection result normal?

YES

>> Repair harness or connector between blower motor and fuse.

NO

>> Replace blower relay.

5.

CHECK FAN SWITCH GROUND CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect heater control connector.

3.

Check continuity between heater control harness connector and ground.

Symptom

A

Blower motor does not operate at any dial position

B

Blower motor does not operate at any dial position other than 4, or oper-
ation speed is not normal.

+

−

Voltage

Blower motor

Connector

Terminal

M40

1

Ground

Battery voltage

Heater control

—

Continuity

Connector

Terminal

M47

6

Ground

Existed

HAC-326

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 5]

BLOWER MOTOR

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair harness or connector.

6.

CHECK FAN SWITCH 4 POSITION CIRCUIT FOR OPEN

Check continuity between heater control harness connector and blower motor harness connector.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Repair the harness or connector.

7.

CHECK BLOWER FAN RESISTOR POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect blower fan resistor connector.

3.

Turn ignition switch ON.

4.

Check voltage between blower fan resistor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair harness or connector between blower fan resistor and blower motor.

8.

CHECK BLOWER FAN RESISTOR

1.

Turn the ignition switch OFF.

2.

Check blower fan resistor. Refer to

HAC-327, "Component Inspection (Blower Fan Resistor)"

.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Replace blower fan resistor. Refer to

HAC-332, "Removal and Installation"

.

9.

CHECK FAN SWITCH 1, 2, 3 POSITION CIRCUIT FOR OPEN

Check continuity between heater control harness connector and blower fan resistor.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Repair harness or connector.

10.

CHECK FAN SWITCH

Check fan switch. Refer to

HAC-328, "Component Inspection (Fan Switch)"

.

Is the inspection result normal?

YES

>> Replace blower motor. Refer to

VTL-15, "Removal and Installation (LHD models)"

or

VTL-16,

"Removal and Installation (RHD models)"

.

NO

>> Replace heater control. Refer to

HAC-331, "Removal and Installation"

.

Heater control

Blower motor

Continuity

Connector

Terminal

Connector

Terminal

M47

5

M40

2

Existed

+

−

Voltage

Blower fan resistor

Connector

Terminal

M58

1

Ground

Battery voltage

Heater control

Blower fan resistor

Continuity

Connector

Terminal

Connector

Terminal

M47

2

M58

4

Existed

3

3

4

2

BLOWER MOTOR

HAC-327

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 5]

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Component Inspection (Blower Motor)

INFOID:0000000006706106

1.

CHECK BLOWER MOTOR

1.

Remove blower motor. Refer to

VTL-15, "Removal and Installation (LHD models)"

or

VTL-16, "Removal

and Installation (RHD models)"

.

2.

Check that there is not any mixing foreign object in the blower motor.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace blower motor. Refer to

VTL-15, "Removal and Installation (LHD models)"

or

VTL-16,

"Removal and Installation (RHD models)"

.

2.

CHECK BLOWER MOTOR

Check that there is not breakage or damage in the blower motor.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace blower motor. Refer to

VTL-15, "Removal and Installation (LHD models)"

or

VTL-16,

"Removal and Installation (RHD models)"

.

3.

CHECK BLOWER MOTOR

Check that blower motor turns smoothly.
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace blower motor. Refer to

VTL-15, "Removal and Installation (LHD models)"

or

VTL-16,

"Removal and Installation (RHD models)"

.

Component Inspection (Blower Relay)

INFOID:0000000006706107

1.

CHECK BLOWER RELAY

1.

Remove blower relay. Refer to

PG-22, "Fuse, Connector and Terminal Arrangement"

.

2.

Check continuity between blower relay terminal 3 and 5 when
the voltage is supplied between terminal 1 and 2.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace blower relay.

Component Inspection (Blower Fan Resistor)

INFOID:0000000006706108

1.

CHECK BLOWER FAN RESISTOR

1.

Disconnect blower fan resistor connector.

2.

Check resistance between blower fan resistor terminals. Refer to applicable table for the normal value.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace blower fan resistor. Refer to

HAC-332, "Removal and Installation"

.

Terminal

Voltage

Continuity

3

5

ON

Existed

OFF

Not existed

JSIIA1551ZZ

Terminal

Resistance:

Ω

(Approx.)

1

2

0.43

3

1.03

4

3

HAC-328

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 5]

BLOWER MOTOR

Component Inspection (Fan Switch)

INFOID:0000000006706109

1.

CHECK FAN SWITCH

Check continuity between heater control terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace heater control. Refer to

HAC-331, "Removal and Installation"

.

Terminal

Condition

Continuity

Fan control dial po-

sition

6

2

1st

Existed

3

2nd

4

3rd

5

4th

MANUAL HEATER SYSTEM

HAC-329

< SYMPTOM DIAGNOSIS >

[TYPE 5]

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SYMPTOM DIAGNOSIS

MANUAL HEATER SYSTEM

Symptom Table

INFOID:0000000006557751

NOTE:
Perform self-diagnosis with CONSULT-III before performing the symptom diagnosis. If any malfunction result
or DTC is detected, perform the corresponding diagnosis.

Symptom

Corresponding malfunction part

Check item/Reference

• Blower motor does not operate at any

dial position.

• Blower motor does not operate at any

dial position other than 4, or operation
speed is not normal.

• Blower motor
• Blower motor power supply circuit
• The circuit between blower motor and fan

switch

• The circuit between blower motor and blower

fan resistor

• The circuit between blower fan resistor and

fan switch (heater control)

• Blower fan resistor
• Fan switch (heater control)

HAC-325, "Diagnosis Procedure"

• Insufficient heating
• No warm air comes out. (Air flow vol-

ume is normal.)

• Engine cooling system
• Heater hose
• Heater core
• Air leakage from each duct

HAC-330, "Diagnosis Procedure"

Noise is heard when the heater and
ventilation control system operates.

• Mixing any foreign object in blower motor
• Blower motor fan breakage
• Blower motor rotation inferiority

HAC-327, "Component Inspection (Blow-
er Motor)"

Discharge air temperature dose not
change.

• Heater control
• Air mix door cable
• Air mix door

Check the air mix door installation and
door operation

Air outlet dose not change.

• Heater control
• Mode door cable
• Mode door

Check the mode door installation and
door operation

Air inlet dose not change.

• Heater control
• Intake door cable
• Intake door

Check the intake door installation and
door operation

HAC-330

< SYMPTOM DIAGNOSIS >

[TYPE 5]

INSUFFICIENT HEATING

INSUFFICIENT HEATING

Description

INFOID:0000000006557752

Symptom

• Insufficient heating
• No warm air comes out. (Air flow volume is normal.)

Diagnosis Procedure

INFOID:0000000006557753

NOTE:
Perform self-diagnosis with CONSULT-III before performing symptom diagnosis. If any malfunction result or
DTC is detected, perform the corresponding diagnosis.

1.

CHECK COOLING SYSTEM

1.

Check engine coolant level and check for leakage. Refer to

CO-37, "Inspection"

.

2.

Check radiator cap. Refer to

CO-40, "RADIATOR CAP : Inspection"

.

3.

Check water flow sounds of the engine coolant. Refer to

CO-38, "Refilling"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Refill engine coolant and repair or replace parts depending on the inspection results.

2.

CHECK HEATER HOSE

Check installation of heater hose by visually or touching.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace parts depending on the inspection results.

3.

CHECK HEATER CORE

1.

Check temperature of inlet hose and outlet hose of heater core.

2.

Check that inlet side of heater core is hot and the outlet side is slightly lower than/almost equal to the inlet
side.

CAUTION:

Always perform the temperature inspection in a short period of time because the engine coolant
temperature is very hot.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace heater core. Refer to

HA-56, "HEATER CORE : Removal and Installation"

.

4.

CHECK AIR LEAKAGE FROM EACH DUCT

Check duct and nozzle, etc. of air conditioning system for air leakage.

Is the inspection result normal?

YES

>> Check air mix door cable installation and air mix door operation.

NO

>> Repair or replace parts depending on the inspection results.

HEATER CONTROL

HAC-331

< REMOVAL AND INSTALLATION >

[TYPE 5]

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REMOVAL AND INSTALLATION

HEATER CONTROL

Exploded View

INFOID:0000000006706114

Removal and Installation

INFOID:0000000006706115

REMOVAL

1.

Remove A/C finisher. Refer to

IP-13, "Removal and Installation"

.

2.

Remove heater control fixing screws (A) and fixing pawls, and
then remove heater control.

3.

Disconnect door cable and harness connector from heater control.

INSTALLATION

Install in the reverse order of removal.

1.

Intake door cable

2.

Air mix door cable

3.

Mode door cable

4.

Heater control

5.

Intake door lever knob

A.

To intake door link

B.

To air mix door link

C.

To mode door link

JMIIA1024ZZ

: Pawl

JMIIA0900ZZ

HAC-332

< REMOVAL AND INSTALLATION >

[TYPE 5]

BLOWER FAN RESISTOR

BLOWER FAN RESISTOR

Exploded View

INFOID:0000000006706116

• *1: Automatic air conditioner

• *2: Manual air conditioner or Manual heater

Removal and Installation

INFOID:0000000006706117

REMOVAL

1.

Remove instrument panel assembly. Refer to

IP-13, "Removal and Installation"

.

2.

Disconnect blower fan resistor connector.

3.

Remove fixing screws (A), and then remove blower fan resistor
(1).

INSTALLATION

Install in the reverse order of removal.

1.

Heater unit assembly

2.

Fan control amp.*

1

3.

Blower fan resistor*

2

4.

Blower motor

5.

Blower motor cover

6.

JMIIA1017ZZ

JMIIA1030ZZ

DOOR CABLE

HAC-333

< REMOVAL AND INSTALLATION >

[TYPE 5]

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DOOR CABLE

Exploded View

INFOID:0000000006706118

LEFT SIDE

RIGHT SIDE

1.

Heater unit assembly

2.

Intake door lever

3.

Intake door link

4.

Intake door cable

5.

Air mix door cable

6.

Air mix door link

7.

Air mix door rod

8.

Lower air mix door lever

9.

Upper air mix door lever

10. Max. cool door

A.

To A/C control

JMIIA1026ZZ

HAC-334

< REMOVAL AND INSTALLATION >

[TYPE 5]

DOOR CABLE

INTAKE DOOR CABLE

INTAKE DOOR CABLE : Removal and Installation

INFOID:0000000006706119

REMOVAL

1.

Disconnect intake door cable from A/C control. Refer to

HAC-308, "Exploded View"

.

2.

Remove instrument lower panel LH. Refer to

IP-13, "Removal and Installation"

. (LHD models)

3.

Remove glove box assembly. Refer to

IP-13, "Removal and Installation"

. (RHD models)

4.

Disconnect intake door cable from heater unit assembly as
shown by the arrow in the figure, and then remove intake door
cable.

INSTALLATION

Install in the reverse order of removal.

MODE DOOR CABLE

1.

Heater unit assembly

2.

Mode door cable

3.

Foot door lever

4.

Foot door link

5.

Side ventilator door lever

6.

Mode door main link

7.

Mode door main link adapter rod

8.

Center ventilator door lever

9.

Defroster door lever

10. Mode door main link adapter

A.

To A/C control

JMIIA1025ZZ

JMIIA1027ZZ