Infiniti QX56 (Z62). Manual - part 805

 

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Infiniti QX56 (Z62). Manual - part 805

 

 

POWER SUPPLY AND GROUND CIRCUIT

HAC-111

< 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 2.

NO

>> GO TO 4.

2.

CHECK FRONT AIR MIX DOOR MOTOR (DRIVER SIDE) GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front air mix door motor LH connector.

3.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK INSTALLATION OF FRONT AIR MIX DOOR MOTOR (DRIVER SIDE)

Check front air mix door motor (driver side) is properly installed. Refer to 

HAC-152, "Exploded View"

.

Is the inspection result normal?

YES

>> Replace front air mix door motor (driver side). Refer to 

HAC-153, "AIR MIX DOOR MOTOR :

Removal and Installation"

.

NO

>> Repair or replace malfunctioning part.

4.

CHECK FRONT AIR MIX DOOR MOTOR (DRIVER SIDE) POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front air mix door motor LH connector and A/C auto amp. connector.

3.

Check continuity between front air mix door motor LH harness connector and A/C auto amp. harness con-
nector. 

Is the inspection result normal?

YES

>> Replace A/C auto amp.. Refer to 

HAC-146, "Removal and Installation"

.

NO

>> Repair harness or connector.

FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE)

FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE) : Diagnosis Procedure

INFOID:0000000006275950

1.

CHECK FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE) POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between front air mix door motor RH harness connector and ground. 

+

Voltage

(Approx.)

Front air mix door motor LH

Connector

Terminal

M252

1

Ground

12 V

Front air mix door motor LH

Continuity

Connector

Terminal

M252

2

Ground

Existed

Front air mix door motor LH

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M252

1

M50

17

Existed

+

Voltage

(Approx.)

Front air mix door motor RH

Connector

Terminal

M255

1

Ground

12 V

HAC-112

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

POWER SUPPLY AND GROUND CIRCUIT

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE) GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front air mix door motor RH connector.

3.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK INSTALLATION OF FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE)

Check front air mix door motor (passenger side) is properly installed. Refer to 

HAC-152, "Exploded View"

.

Is the inspection result normal?

YES

>> Replace front air mix door motor (passenger side). Refer to 

HAC-153, "AIR MIX DOOR MOTOR :

Removal and Installation"

.

NO

>> Repair or replace malfunctioning part.

4.

CHECK FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE) POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front air mix door motor RH connector and A/C auto amp. connector.

3.

Check continuity between front air mix door motor RH harness connector and A/C auto amp. harness con-
nector. 

Is the inspection result normal?

YES

>> Replace A/C auto amp.. Refer to 

HAC-146, "Removal and Installation"

.

NO

>> Repair harness or connector.

FRONT MODE DOOR MOTOR

FRONT MODE DOOR MOTOR : Diagnosis Procedure

INFOID:0000000006275951

1.

CHECK FRONT MODE DOOR MOTOR POWER SUPPLY

1.

Turn ignition switch ON.

2.

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

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK FRONT MODE DOOR MOTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front mode door motor connector.

Front air mix door motor RH

Continuity

Connector

Terminal

M255

2

Ground

Existed

Front air mix door motor RH

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M255

1

M50

17

Existed

+

Voltage

(Approx.)

Front mode door motor

Connector

Terminal

M253

1

Ground

12 V

POWER SUPPLY AND GROUND CIRCUIT

HAC-113

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

3.

Check continuity between front mode door motor harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK INSTALLATION OF FRONT MODE DOOR MOTOR CONTROL LINKAGE

Check front mode door motor control linkage is properly installed. Refer to 

HAC-152, "Exploded View"

.

Is the inspection result normal?

YES

>> Replace front mode door motor. Refer to 

HAC-153, "MODE DOOR MOTOR : Removal and Instal-

lation"

.

NO

>> Repair or replace malfunctioning part.

4.

CHECK FRONT MODE DOOR MOTOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front mode door motor connector and A/C auto amp. connector.

3.

Check continuity between front mode door motor harness connector and A/C auto amp. harness connec-
tor. 

Is the inspection result normal?

YES

>> Replace A/C auto amp.. Refer to 

HAC-146, "Removal and Installation"

.

NO

>> Repair harness or connector.

INTAKE DOOR MOTOR

INTAKE DOOR MOTOR : Diagnosis Procedure

INFOID:0000000006275952

1.

CHECK INTAKE MODE DOOR MOTOR POWER SUPPLY

1.

Turn ignition switch ON.

2.

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

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK INTAKE MODE DOOR MOTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect intake mode door motor connector.

3.

Check continuity between intake mode door motor harness connector and ground. 

Front mode door motor

Continuity

Connector

Terminal

M253

2

Ground

Existed

Front mode door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M253

1

M50

17

Existed

+

Voltage

(Approx.)

Intake mode door motor

Connector

Terminal

M254

1

Ground

12 V

Intake mode door motor

Continuity

Connector

Terminal

M254

2

Ground

Existed

HAC-114

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

POWER SUPPLY AND GROUND CIRCUIT

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK INSTALLATION OF INTAKE MODE DOOR MOTOR CONTROL LINKAGE

Check intake mode door motor control linkage is properly installed. Refer to 

HAC-152, "Exploded View"

.

Is the inspection result normal?

YES

>> Replace intake mode door motor. Refer to 

HAC-153, "INTAKE DOOR MOTOR : Removal and

Installation"

.

NO

>> Repair or replace malfunctioning part.

4.

CHECK INTAKE MODE DOOR MOTOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect intake mode door motor connector and A/C auto amp. connector.

3.

Check continuity between intake mode door motor harness connector and A/C auto amp. harness con-
nector. 

Is the inspection result normal?

YES

>> Replace A/C auto amp.. Refer to 

HAC-146, "Removal and Installation"

.

NO

>> Repair harness or connector.

REAR AIR MIX DOOR MOTOR

REAR AIR MIX DOOR MOTOR : Diagnosis Procedure

INFOID:0000000006275953

1.

CHECK REAR AIR MIX DOOR MOTOR POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between rear air mix door motor harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK REAR AIR MIX DOOR MOTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear air mix door motor connector.

3.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK INSTALLATION OF REAR AIR MIX DOOR MOTOR

Check rear air mix door motor is properly installed. Refer to 

HAC-152, "Exploded View"

.

Intake mode door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M254

1

M50

17

Existed

+

Voltage

(Approx.)

Rear air mix door motor

Connector

Terminal

B210

1

Ground

12 V

Rear air mix door motor

Continuity

Connector

Terminal

B210

2

Ground

Existed

 

 

 

 

 

 

 

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