Nissan X-Trail 32. Manual - part 1405

B24B9 MODE DOOR MOTOR

HAC-95

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

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HAC

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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-126, "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

M173

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

M173

11

Existed

3

12

4

32

6

33

Mode door motor

—

Continuity

Connector

Terminal

M342

1

Ground

Not existed

3

4

6

HAC-96

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

B24B9 MODE DOOR MOTOR

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-96, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-126, "Removal and Installation"

.

NO

>> Replace mode door motor. Refer to 

HAC-137, "MODE DOOR MOTOR : Removal and Installa-

tion"

.

Component Inspection

INFOID:0000000010939753

1.

CHECK MODE DOOR MOTOR

1.

Remove mode door motor. Refer to 

HAC-137, "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-137, "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

B24BB LEFT AIR MIX DOOR MOTOR

HAC-97

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

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B24BB LEFT AIR MIX DOOR MOTOR

DTC Description

INFOID:0000000010939754

DTC DETECTION LOGIC

POSSIBLE CAUSE

[CIRCUIT SHORT TO BATTERY]

• Harness and connector [Air mix door motor (driver side) circuit is shorted to battery] (LHD models)
• Harness and connector [Air mix door motor (passenger side) circuit is shorted to battery] (RHD models)
• Air Mix door motor
• A/C auto amp.

[CIRC SHORT TO GRND OR OPEN]

• Harness and connector [Air mix door motor (driver side) circuit is open or shorted to ground] (LHD models)
• Harness and connector [Air mix door motor (passenger side) circuit is open or shorted to ground] (RHD

models)

• Air mix 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:0000000010939755

1.

CHECK AIR MIX DOOR MOTOR [DRIVER SIDE (LHD MODELS), PASSENGER SIDE (RHD MODELS)]

POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect air mix door motor LH connector.

3.

Turn ignition switch ON.

4.

Check voltage between air mix door motor LH harness connector and ground for several seconds after
operating the temperature control dial (driver side) while DUAL switch is OFF.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

B24BB

LEFT AIR MIX DOOR MOTOR
(Left side air mix door motor)

[CIRCUIT SHORT TO BATTERY]

Detect short to battery circuit of air mix door 
motor [driver side (LHD models), passenger 
side (RHD models)] circuits.

[CIRC SHORT TO GRND OR OPEN]

Detect open or short to ground circuit of air mix 
door motor [driver side (LHD models), passen-
ger side (RHD models)] circuits.

+

−

Voltage

Air mix door motor LH

Connector

Terminal

M345

2

Ground

11 - 14 V

HAC-98

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

B24BB LEFT AIR MIX DOOR MOTOR

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK AIR MIX DOOR MOTOR [DRIVER SIDE (LHD MODELS), PASSENGER SIDE (RHD MODELS)]

POWER SUPPLY CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect A/C auto amp. connector.

3.

Check continuity between air mix door motor LH harness connector and A/C auto amp. harness connec-
tor.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK AIR MIX DOOR MOTOR [DRIVER SIDE (LHD MODELS), PASSENGER SIDE (RHD MODELS)]

POWER SUPPLY CIRCUIT FOR SHORT

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

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-126, "Removal and Installation"

.

NO

>> Repair harness or connector.

4.

CHECK AIR MIX DOOR MOTOR [DRIVER SIDE (LHD MODELS), PASSENGER SIDE (RHD MODELS)]

DRIVE SIGNAL CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect A/C auto amp. connector.

3.

Check continuity between air mix door motor LH harness connector and A/C auto amp. harness connec-
tor.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair harness or connector.

5.

CHECK AIR MIX DOOR MOTOR [DRIVER SIDE (LHD MODELS), PASSENGER SIDE (RHD MODELS)]

DRIVE SIGNAL CIRCUIT FOR SHORT

1.

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

Air mix door motor LH

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M345

2

M173

40

Existed

Air mix door motor LH

—

Continuity

Connector

Terminal

M345

2

Ground

Not existed

Air mix door motor LH

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M345

1

M173

1

Existed

3

2

4

21

6

22