Nissan Teana J32. Manual - part 673

B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR

HAC-61

< COMPONENT DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

3.

Confirm that air discharge comes out according to the air distribution table at below. Refer to 

HAC-17,

"System Description"

.

NOTE:
Confirm that the compressor clutch is engaged (Sound or visual inspection) and intake door position is at FRE
when DEF is selected.

Does it operate normally?

YES

>> END.

NO

>> Check mode door motor installation, and repair or replace the malfunctioning parts.

Diagnosis Procedure

INFOID:0000000003846355

1.

CHECK POWER SUPPLY FOR MODE DOOR MOTOR

Check voltage between mode door motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK SIGNAL FOR MODE DOOR MOTOR

Confirm A/C LAN signal between mode door motor harness connector and ground using an oscilloscope.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

JPIIA0877GB

(+)

(

−

)

Voltage

Mode door motor

—

Connector

Terminal

M310

1

Ground

Battery voltage

(+)

(

−

)

Voltage

Mode door motor

—

Connector

Terminal

M310

3

Ground

SJIA1453J

HAC-62

< COMPONENT DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR

3.

CHECK MODE DOOR MOTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect mode door motor connector.

3.

Check continuity between mode door motor harness connector and ground.

Is the inspection result normal?

YES

>> Replace mode door motor.

NO

>> Repair harness or connector.

Mode door motor

—

Continuity

Connector

Terminal

M310

2

Ground

Existed

B263D B263E, B263F, B2656 INTAKE DOOR MOTOR

HAC-63

< COMPONENT DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

B263D B263E, B263F, B2656 INTAKE DOOR MOTOR

Description

INFOID:0000000003846356

COMPONENT DESCRIPTION

Intake Door Motor

• The intake door motor (1) is attached to the blower unit.

• It rotates so that air is drawn from inlets set by the A/C auto amp.

Motor rotation is conveyed to a lever which activates the intake
door.

DTC Logic

INFOID:0000000003846357

DTC DETECTION LOGIC

NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to 

HAC-

42, "DTC Logic"

 or 

HAC-43, "DTC Logic"

. 

DTC CONFIRMATION PROCEDURE

1.

CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III

1.

Using CONSULT-III, perform “SELF-DIAGNOSIS RESULTS” of HVAC. 

2.

Check if any DTC is displayed in the self-diagnosis results. 

NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to 

HAC-

42, "DTC Logic"

 or 

HAC-43, "DTC Logic"

. 

Is DTC “B263D”, “B263E”, “B263F” or “B2656” displayed?

YES

>> Perform trouble diagnosis for the intake door motor. Refer to 

HAC-64, "Diagnosis Procedure"

. 

NO

>> GO TO 2.

2.

FUNCTION INSPECTION

1.

Press REC switch.

2.

The REC switch indicator is turned ON. (REC position)

3.

Listen for intake door position change (Slight change of blower sound can be heard.).

4.

Press FRE switch.

5.

The FRE switch indicator is turned ON. (FRE position)

6.

Listen for intake door position change (Slight change of blower sound can be heard.).

Does it operate normally?

YES

>> INSPECTION END

:

Vehicle front

JPIIA0516ZZ

DTC

Items

 (CONSULT-III screen terms)

Diagnostic item is detected when...

Possible cause

B263D

FRE DOOR FAIL

When the malfunctioning intake door posi-
tion is detected at FRE position

• Intake door motor
• A/C auto amp.
• Harness and connector

(CAN communication line is open 
or shorted)
(Intake door motor is open or 
shorted)

B263E

20P FRE DOOR FAIL

When the malfunctioning intake door posi-
tion is detected at 20%FRE position

B263F

REC DOOR FAIL

When the malfunctioning intake door posi-
tion is detected at REC position

B2656

BTC FRE DOOR FAIL

When the malfunctioning intake door posi-
tion is detected

HAC-64

< COMPONENT DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

B263D B263E, B263F, B2656 INTAKE DOOR MOTOR

NO

>> Check intake door motor installation, and repair or replace the malfunctioning parts.

Diagnosis Procedure

INFOID:0000000003846358

1.

CHECK POWER SUPPLY FOR INTAKE DOOR MOTOR

Check voltage between intake door motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK SIGNAL FOR INTAKE DOOR MOTOR

Confirm A/C LAN signal between intake door motor harness connector and ground using an oscilloscope.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK INTAKE DOOR MOTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect intake door motor connector.

3.

Check continuity between intake door motor harness connector and ground.

Is the inspection result normal?

YES

>> Replace intake door motor.

NO

>> Repair harness or connector.

(+)

(

−

)

Voltage

Intake door motor

—

Connector

Terminal

M304

1

Ground

Battery voltage

(+)

(

−

)

Voltage

Intake door motor

—

Connector

Terminal

M304

3

Ground

SJIA1453J

Intake door motor

—

Continuity

Connector

Terminal

M304

2

Ground

Existed