Nissan Quest E52. Manual - part 747

 

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Nissan Quest E52. Manual - part 747

 

 

HAC-118

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

DOOR MOTOR

DOOR MOTOR

Diagnosis Procedure

INFOID:0000000009652567

NOTE:
Check this circuit when all door motor system malfunction are detected.

1.

CHECK DOOR MOTOR POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between intake door motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 7.

2.

CHECK DOOR MOTOR GROUND CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect intake door motor and A/C auto amp. connector.

3.

Check continuity between intake door motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK DOOR MOTOR LAN SIGNAL

1.

Connect A/C auto amp. and intake door motor connector.

2.

Turn ignition switch ON.

3.

Confirm output waveform between A/C auto amp. harness connector and ground using oscilloscope.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 6.

4.

CHECK DOOR MOTOR LAN SIGNAL CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect A/C auto amp. and intake door motor connector.

3.

Check continuity between A/C auto amp. harness connector and intake door motor harness connector.

+

Voltage

Intake door motor

Connector

Terminal

M304

1

Ground

9.5 – 13.5 V

Intake door motor

Continuity

Connector

Terminal

M304

2

Ground

Existed

+

Output waveform

A/C auto amp.

Connector

Terminal

M50

5

Ground

SJIA1453J

DOOR MOTOR

HAC-119

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair harness or connector.

5.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

>> INSPECTION END

6.

CHECK DOOR MOTOR LAN SIGNAL CIRCUIT FOR SHORT

1.

Turn ignition switch OFF.

2.

Disconnect following connectors.

-

A/C auto amp.

-

Front air mix door motor LH

-

Front air mix door motor RH

-

Front mode door motor

-

Intake door motor

-

Rear air mix door motor

-

Rear mode door motor

3.

Check continuity between A/C auto amp. harness connector and ground.

Is the inspection result normal?

YES

>> Replace front A/C control (A/C auto amp.). Refer to 

HAC-143, "Removal and Installation"

.

NO

>> Repair harness or connector.

7.

CHECK DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect intake door motor and A/C auto amp. connector.

3.

Check continuity between intake door motor harness connector and A/C auto amp. harness connector.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair harness or connector.

8.

CHECK DOOR MOTOR POWER SUPPLY CIRCUIT FOR SHORT

1.

Disconnect following connectors.

-

A/C auto amp.

-

Front air mix door motor LH

-

Front air mix door motor RH

-

Front mode door motor

-

Rear air mix door motor

-

Rear mode door motor

2.

Check continuity between A/C auto amp. harness connector and ground.

A/C auto amp.

Intake door motor

Continuity

Connector

Terminal

Connector

Terminal

M50

5

M304

3

Existed

A/C auto amp.

Continuity

Connector

Terminal

M50

5

Ground

Not existed

Intake door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M304

1

M50

4

Existed

HAC-120

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

DOOR MOTOR

Is the inspection result normal?

YES

>> Replace front A/C control (A/C auto amp.). Refer to 

HAC-143, "Removal and Installation"

.

NO

>> Repair harness or connector.

A/C auto amp.

Continuity

Connector

Terminal

M50

4

Ground

Not existed

A/C ON SIGNAL

HAC-121

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

A/C ON SIGNAL

Component Function Check

INFOID:0000000009652568

1.

CHECK A/C ON SIGNAL

With CONSULT

1.

Turn ignition switch ON.

2.

Operate blower motor.

3.

Select “AIR CONDITIONER” of “BCM” using CONSULT.

4.

Select “AIR COND SW” in “DATA MONITOR” mode.

5.

Check A/C ON signal when the A/C switch is operated.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Refer to 

HAC-121, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009652569

1.

CHECK A/C ON SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect A/C auto amp. connector.

3.

Turn ignition switch ON.

4.

Check output waveform between A/C auto amp. harness connector and ground with using oscilloscope.

Is the inspection result normal?

YES

>> Replace front A/C control (A/C auto amp.). Refer to 

HAC-143, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK A/C ON SIGNAL CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector.

3.

Check continuity between A/C auto amp. harness connector and BCM harness connector.

Is the inspection result normal?

YES

>> GO TO 3.

Monitor item

Condition

Status

AIR COND SW

A/C switch

ON (A/C indicator: 
ON)

On

OFF (A/C indicator: 
OFF)

Off

+

Output waveform

A/C auto amp.

Connector

Terminal

M50

13

Ground

JPMIA0012GB

A/C auto amp.

BCM

Continuity

Connector

Terminal

Connector

Terminal

M50

13

M121

27

Existed

 

 

 

 

 

 

 

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