Nissan Murano Z51. Manual - part 882

 

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Nissan Murano Z51. Manual - part 882

 

 

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

HAC-183

< DTC/CIRCUIT DIAGNOSIS >

[WITH 7 INCH DISPLAY]

C

D

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F

G

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J

K

L

M

A

B

HAC

N

O

P

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

Description

INFOID:0000000005514728

COMPONENT DESCRIPTION

Mode Door Motor

• The mode door motor (1) are attached to the heater & cooling unit

assembly.

• It rotates so that air is discharged from the outlet set by the A/C

auto amp. Motor rotation is conveyed to a link which activates the
mode door.

DTC Logic

INFOID:0000000005514729

DTC DETECTION LOGIC

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

HAC-

165, "DTC Logic"

 or 

HAC-166, "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 No. 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-

165, "DTC Logic"

 or 

HAC-166, "DTC Logic"

Is DTC No.“ B2636 ”, “ B2637 ”, “B2638 ”, “B2639 ”, “B2654 ” or “B2655 ” displayed?

YES

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

HAC-184, "Diagnosis Procedure"

NO

>> GO TO 2.

2.

FUNCTION INSPECTION

1.

Press MODE switch and DEF switch.

2.

Each position indicator should change shape.

:

Vehicle front

JPIIA0513ZZ

DTC

Items

 (CONSULT-III screen terms)

Diagnostic item is detected when...

Possible cause

B2636

DR VENT DOOR FAIL

When the malfunctioning door position is 
detected at VENT position

• Mode door motor (PBR internal 

circuit is open or shorted)

• A/C auto amp.
• Harness and connector (LAN 

communication line is open or 
shorted)

B2637

DR B/L DOOR FAIL

When the malfunctioning door position is 
detected at B/L position

B2638

DR D/F1 DOOR FAIL

When the malfunctioning door position is 
detected at FOOT position

B2639

DR DEF DOOR FAIL

When the malfunctioning door position is 
detected at DEF position

B2654

D/F2 DOOR FAIL

When the malfunctioning door position is 
detected at D/F position

B2655

B/L2 DOOR FAIL

When the malfunctioning door position is 
detected at B/L2 position

HAC-184

< DTC/CIRCUIT DIAGNOSIS >

[WITH 7 INCH DISPLAY]

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

3.

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

HAC-138,

"System Description"

.

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

 ) or D/F ( 

 ) is selected.

Does it operate normally?

YES

>> INSPECTION END

NO

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

Diagnosis Procedure

INFOID:0000000005514730

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.

JPIIA0509GB

JPIIA0510GB

(+)

(

)

Voltage

Mode door motor

Connector

Terminal

M310

1

Ground

Battery voltage

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

HAC-185

< DTC/CIRCUIT DIAGNOSIS >

[WITH 7 INCH DISPLAY]

C

D

E

F

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B

HAC

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Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

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.

(+)

(

)

Voltage

Mode door motor

Connector

Terminal

M310

3

Ground

SJIA1453J

Mode door motor

Continuity

Connector

Terminal

M310

2

Ground

Existed

HAC-186

< DTC/CIRCUIT DIAGNOSIS >

[WITH 7 INCH DISPLAY]

B263D, B263E, B263F INTAKE DOOR MOTOR

B263D, B263E, B263F INTAKE DOOR MOTOR

Description

INFOID:0000000005514731

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:0000000005514732

DTC DETECTION LOGIC

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

HAC-

165, "DTC Logic"

 or 

HAC-166, "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 No. 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-

165, "DTC Logic"

 or 

HAC-166, "DTC Logic"

Is DTC No.“B263D”, “B263E” or “B263F” displayed?

YES

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

HAC-187, "Diagnosis Procedure"

NO

>> GO TO 2.

2.

FUNCTION INSPECTION

1.

Press intake switch.

2.

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

3.

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

4.

Press intake switch again.

5.

The intake switch indicator is turned OFF. (FRE position)

6.

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

Does it operate normally?

YES

>> INSPECTION END

NO

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

:

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 (PBR internal 

circuit is open or shorted)

• A/C auto amp.
• Harness and connector (LAN com-

munication line 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

 

 

 

 

 

 

 

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