Nissan Quest E52. Manual - part 744

HAC-106

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

FRONT AIR MIX DOOR MOTOR (DRIVER SIDE)

FRONT AIR MIX DOOR MOTOR (DRIVER SIDE)

Diagnosis Procedure

INFOID:0000000009652561

1.

CHECK FRONT AIR MIX DOOR MOTOR (DRIVER SIDE) POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between front air mix door motor LH harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 5.

2.

CHECK FRONT AIR MIX DOOR MOTOR (DRIVER SIDE) GROUND CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect front air mix door motor LH and A/C auto amp. connector.

3.

Check continuity between front air mix door motor LH harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK FRONT AIR MIX DOOR MOTOR (DRIVER SIDE) LAN SIGNAL

1.

Connect front air mix door motor LH and A/C auto amp. connector.

2.

Turn ignition switch ON.

3.

Confirm output waveform between front air mix door motor LH harness connector and ground using oscil-
loscope.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 6.

4.

CHECK INSTALLATION OF FRONT AIR MIX DOOR MOTOR (DRIVER SIDE)

Check front air mix door motor (driver side) is properly installed. Refer to 

HAC-151, "Exploded View"

.

Is the inspection result normal?

YES

>> Replace front air mix door motor (driver side). Refer to 

HAC-152, "FRONT AIR MIX DOOR

MOTOR : Removal and Installation"

.

+

−

Voltage

Front air mix door motor LH

Connector

Terminal

M306

1

Ground

9.5 – 13.5 V

Front air mix door motor LH

—

Continuity

Connector

Terminal

M306

2

Ground

Existed

+

−

Output waveform

Front air mix door motor LH

Connector

Terminal

M306

3

Ground

SJIA1453J

FRONT AIR MIX DOOR MOTOR (DRIVER SIDE)

HAC-107

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

NO

>> Repair or replace malfunctioning part.

5.

CHECK FRONT AIR MIX DOOR MOTOR (DRIVER SIDE) POWER SUPPLY CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect front air mix door motor LH and A/C auto amp. connector.

3.

Check continuity between front air mix door motor LH harness connector and A/C auto amp. harness con-
nector.

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.

6.

CHECK FRONT AIR MIX DOOR MOTOR (DRIVER SIDE) LAN SIGNAL CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect front air mix door motor LH and A/C auto amp. connector.

3.

Check continuity between front air mix door motor LH harness connector and A/C auto amp. harness con-
nector.

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.

Front air mix door motor LH

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M306

1

M50

4

Existed

Front air mix door motor LH

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M306

3

M50

5

Existed

HAC-108

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE)

FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE)

Diagnosis Procedure

INFOID:0000000009652562

1.

CHECK FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE) POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between front air mix door motor RH harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 5.

2.

CHECK FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE) GROUND CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect front air mix door motor RH and A/C auto amp. connector.

3.

Check continuity between front air mix door motor RH harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE) LAN SIGNAL

1.

Connect front air mix door motor RH and A/C auto amp. connector.

2.

Turn ignition switch ON.

3.

Confirm output waveform between front air mix door motor RH harness connector and ground using oscil-
loscope.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 6.

4.

CHECK INSTALLATION OF FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE)

Check front air mix door motor (passenger side) is properly installed. Refer to 

HAC-151, "Exploded View"

.

Is the inspection result normal?

YES

>> Replace front air mix door motor (passenger side). Refer to 

HAC-152, "FRONT AIR MIX DOOR

MOTOR : Removal and Installation"

.

+

−

Voltage

Front air mix door motor RH

Connector

Terminal

M307

1

Ground

9.5 – 13.5 V

Front air mix door motor RH

—

Continuity

Connector

Terminal

M307

2

Ground

Existed

+

−

Output waveform

Front air mix door motor RH

Connector

Terminal

M307

3

Ground

SJIA1453J

FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE)

HAC-109

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

NO

>> Repair or replace malfunctioning part.

5.

CHECK FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE) POWER SUPPLY CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect front air mix door motor RH and A/C auto amp. connector.

3.

Check continuity between front air mix door motor RH harness connector and A/C auto amp. harness con-
nector.

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.

6.

CHECK FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE) LAN SIGNAL CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect front air mix door motor RH and A/C auto amp. connector.

3.

Check continuity between front air mix door motor RH harness connector and A/C auto amp. harness con-
nector.

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.

Front air mix door motor RH

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M307

1

M50

4

Existed

Front air mix door motor RH

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M307

3

M50

5

Existed