Nissan Qashqai J11. Manual - part 1115

HAC-96

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

B24B7 INTAKE DOOR MOTOR

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair harness or connector.

6.

CHECK INTAKE DOOR MOTOR

Check intake door motor. Refer to 

HAC-96, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-129, "Removal and Installation"

.

NO

>> Replace intake door motor. Refer to 

HAC-139, "INTAKE DOOR MOTOR : Removal and Installa-

tion"

.

Component Inspection

INFOID:0000000010432218

1.

CHECK INTAKE DOOR MOTOR

1.

Remove intake door motor. Refer to 

HAC-139, "INTAKE DOOR MOTOR : Removal and Installation"

.

2.

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

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace intake door motor. Refer to 

HAC-139, "INTAKE DOOR MOTOR : Removal and Installa-

tion"

.

+

−

Voltage

Intake door motor

Connector

Terminal

M341

6

Ground

0 V

1

3

4

Terminal

Resistance (

Ω

)

(Approx.)

2

1

90

3

4

6

B24B9 MODE DOOR MOTOR

HAC-97

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

B24B9 MODE DOOR MOTOR

DTC Logic

INFOID:0000000010432222

DTC DETECTION LOGIC

POSSIBLE CAUSE

[CIRCUIT SHORT TO BATTERY]

• Harness and connector (Mode door motor circuit is shorted to battery)
• Mode door motor
• A/C auto amp.

[CIRC SHORT TO GRND OR OPEN]

• Harness and connector (Mode door motor circuit is open or shorted to ground)
• Mode door motor
• A/C auto amp.

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

1.

Turn ignition switch ON.

2.

Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.

3.

Check DTC.

Is DTC detected?

YES

>> Refer to 

HAC-97, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010432223

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 for several seconds after press-
ing the MODE VENT/FOOT/DEF switch.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK MODE DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

B24B9

MODE DOOR MOTOR
(Mode door motor)

[CIRCUIT SHORT TO BATTERY]

Detect short to battery circuit of mode door motor cir-
cuits.

[CIRC SHORT TO GRND OR 
OPEN]

Detect open or short to ground circuit of mode door 
motor circuits.

+

−

Voltage

Mode door motor

Connector

Terminal

M342

2

Ground

11 - 14 V

HAC-98

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

B24B9 MODE DOOR MOTOR

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 3.

NO

>> Repair harness or connector.

3.

CHECK MODE DOOR MOTOR POWER SUPPLY CIRCUIT FOR SHORT

Check continuity between mode door motor harness connector and ground.

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-129, "Removal and Installation"

.

NO

>> Repair harness or connector.

4.

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 5.

NO

>> Repair harness or connector.

5.

CHECK MODE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR SHORT

1.

Check continuity between mode door motor harness connector and ground.

2.

Check voltage between mode door motor harness connector and ground.

Mode door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M342

2

M140

20

Existed

Mode door motor

—

Continuity

Connector

Terminal

M342

2

Ground

Not existed

Mode door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M342

1

M140

11

Existed

3

12

4

32

6

33

Mode door motor

—

Continuity

Connector

Terminal

M342

1

Ground

Not existed

3

4

6

B24B9 MODE DOOR MOTOR

HAC-99

< 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 6.

NO

>> Repair harness or connector.

6.

CHECK MODE DOOR MOTOR

Check mode door motor. Refer to 

HAC-99, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-129, "Removal and Installation"

.

NO

>> Replace mode door motor. Refer to 

HAC-140, "MODE DOOR MOTOR : Removal and Installa-

tion"

.

Component Inspection

INFOID:0000000010432224

1.

CHECK MODE DOOR MOTOR

1.

Remove mode door motor. Refer to 

HAC-140, "MODE DOOR MOTOR : Removal and Installation"

.

2.

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

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace mode door motor. Refer to 

HAC-140, "MODE DOOR MOTOR : Removal and Installa-

tion"

.

+

−

Voltage

Mode door motor

Connector

Terminal

M342

1

Ground

0 V

3

4

6

Terminal

Resistance (

Ω

)

(Approx.)

2

1

90

3

4

6