Nissan Rogue. Manual - part 764

HAC-78

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

B24B7 INTAKE DOOR MOTOR

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-103, "Removal and Installation"

.

NO

>> Repair harness or connector.

3.

CHECK INTAKE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR OPEN

1. Turn ignition switch OFF.

2. Disconnect 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 4.

NO

>> Repair harness or connector.

4.

CHECK INTAKE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR SHORT

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair harness or connector.

5.

CHECK INTAKE DOOR MOTOR

Check intake door motor. Refer to 

HAC-81, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-103, "Removal and Installation"

.

NO

>> Replace intake door motor. Refer to 

HAC-110, "INTAKE DOOR MOTOR : Removal and Installa-

tion"

.

Component Inspection (Motor)

INFOID:0000000011276623

1.

CHECK INTAKE DOOR MOTOR

1. Remove intake door motor. Refer to 

HAC-110, "INTAKE DOOR MOTOR : Removal and Installation"

.

2. Check resistance between intake door motor terminals. Refer to applicable table for the normal value. 

Intake door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M147

2

M55

41

Yes

Intake door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M147

1

M55

45

Yes

3

44

4

65

6

47

Intake door motor

—

Continuity

Connector

Terminal

M147

1

Ground

No

3

4

6

B24B7 INTAKE DOOR MOTOR

HAC-79

< 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

>> Inspection End.

NO

>> Replace intake door motor. Refer to 

HAC-110, "INTAKE DOOR MOTOR : Removal and Installa-

tion"

.

Terminal

Resistance (

Ω)

(Approx.)

2

1

90

3

4

6

HAC-80

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

B24B9 MODE DOOR MOTOR

B24B9 MODE DOOR MOTOR

DTC Logic

INFOID:0000000011276624

DTC DETECTION LOGIC 

NOTE:

• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to 

HAC-

53, "DTC Logic"

.

• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010. 

HAC-54,

"DTC Logic"

.

• If mode door motors DTC (B24B7 – B24B9) are detected, there is probably a disconnected connector or an

open circuit in mode door motor drive power supply harness.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

1. Turn ignition switch ON.

2. Select “Self Diagnostic Result” of “HVAC”.

3. Check DTC.
Is DTC detected?

YES

>> Refer to 

HAC-80, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000011276625

Regarding Wiring Diagram information, refer to 

HAC-35, "Wiring Diagram"

.

1.

CHECK MODE DOOR MOTOR POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect mode door motor connector.

3. Turn ignition switch ON.

4. Check voltage between mode door motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK MODE DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN

1. Disconnect A/C auto amp. connector.

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

DTC

Items

(CONSULT screen terms)

DTC detection condition

Possible cause

B24B9

MODE DOOR MOTOR

Short or open circuit of mode door motor drive 
signal.

• Mode door motor
• A/C auto amp.
• Harness or connectors

(The motor circuit is open or short-
ed.)

+

−

Voltage

(Approx.)

Mode door motor

Connector

Terminal

M143

2

Ground

Battery voltage

B24B9 MODE DOOR MOTOR

HAC-81

< 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

>> Replace A/C auto amp. Refer to 

HAC-103, "Removal and Installation"

.

NO

>> Repair harness or connector.

3.

CHECK MODE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR OPEN

1. Turn ignition switch OFF.

2. Disconnect A/C auto amp. connector.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair harness or connector.

4.

CHECK MODE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR SHORT

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair harness or connector.

5.

CHECK MODE DOOR MOTOR

Check mode door motor. Refer to 

HAC-81, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-103, "Removal and Installation"

.

NO

>> Replace mode door motor. Refer to 

HAC-110, "MODE DOOR MOTOR : Removal and Installa-

tion"

.

Component Inspection

INFOID:0000000011276626

1.

CHECK MODE DOOR MOTOR

1. Remove mode door motor. Refer to 

HAC-110, "MODE DOOR MOTOR : Removal and Installation"

.

2. Check resistance between mode door motor terminals. Refer to applicable table for the normal value. 

Mode door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M143

2

M55

41

Yes

Mode door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M143

1

M55

50

Yes

3

49

4

69

6

68

Mode door motor

—

Continuity

Connector

Terminal

M143

1

Ground

No

3

4

6