Infiniti QX56 (Z62). Manual - part 806

 

  Index      Infiniti     Infiniti QX56 (Z62) - service repair manual 2011 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  804  805  806  807   ..

 

 

Infiniti QX56 (Z62). Manual - part 806

 

 

POWER SUPPLY AND GROUND CIRCUIT

HAC-115

< 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 rear air mix door motor. Refer to 

HAC-154, "REAR AIR MIX DOOR MOTOR : Removal

and Installation"

.

NO

>> Repair or replace malfunctioning part.

4.

CHECK REAR AIR MIX DOOR MOTOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity between rear air mix 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.

REAR A/C CONTROL

REAR A/C CONTROL : Diagnosis Procedure

INFOID:0000000006275954

1.

CHECK FUSE

Check 10A fuse [No. 4, located in the fuse block (J/B)].
NOTE:
Refer to 

PG-140, "Fuse, Connector and Terminal Arrangement"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.

2.

CHECK REAR A/C CONTROL POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect rear A/C control connector. 

3.

Turn ignition switch ON.

4.

Check voltage between rear A/C control harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector between rear A/C control and fuse block (J/B).

3.

CHECK REAR A/C CONTROL GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between rear A/C control harness connector and ground. 

Is the inspection result normal?

YES

>> Replace rear A/C control. Refer to 

HAC-146, "Removal and Installation"

.

NO

>> Repair harness or connector.

Rear air mix door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

B210

1

M50

17

Existed

+

Voltage

Rear A/C control

Connector

Terminal

M41

12

Ground

Battery voltage

Rear A/C control

Continuity

Connector

Terminal

M41

1

Ground

Existed

HAC-116

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

POWER SUPPLY AND GROUND CIRCUIT

REAR MODE DOOR MOTOR

REAR MODE DOOR MOTOR : Diagnosis Procedure

INFOID:0000000006275955

1.

CHECK REAR MODE DOOR MOTOR POWER SUPPLY

1.

Turn ignition switch ON.

2.

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

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK REAR MODE DOOR MOTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear mode door motor connector.

3.

Check continuity between rear 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 REAR MODE DOOR MOTOR CONTROL LINKAGE

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

HAC-152, "Exploded View"

.

Is the inspection result normal?

YES

>> Replace rear mode door motor. Refer to 

HAC-154, "REAR MODE DOOR MOTOR : Removal and

Installation"

.

NO

>> Repair or replace malfunctioning part.

4.

CHECK REAR MODE DOOR MOTOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity between rear 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.

UPPER VENTILATOR DOOR MOTOR

UPPER VENTILATOR DOOR MOTOR : Diagnosis Procedure

INFOID:0000000006275956

1.

CHECK UPPER VENTILATOR DOOR MOTOR POWER SUPPLY

1.

Turn ignition switch ON.

+

Voltage

(Approx.)

Rear mode door motor

Connector

Terminal

B209

1

Ground

12 V

Rear mode door motor

Continuity

Connector

Terminal

B209

2

Ground

Existed

Rear mode door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

B209

1

M50

17

Existed

POWER SUPPLY AND GROUND CIRCUIT

HAC-117

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

2.

Check voltage between upper ventilator door motor harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK UPPER VENTILATOR DOOR MOTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect upper ventilator door motor connector.

3.

Check continuity between upper ventilator door motor harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK INSTALLATION OF UPPER VENTILATOR DOOR MOTOR

Check upper ventilator door motor is properly installed. Refer to 

HAC-152, "Exploded View"

.

Is the inspection result normal?

YES

>> Replace upper ventilator door motor. Refer to 

HAC-154, "UPPER VENTILATOR DOOR MOTOR :

Removal and Installation"

.

NO

>> Repair or replace malfunctioning part.

4.

CHECK UPPER VENTILATOR DOOR MOTOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect upper ventilator door motor connector and A/C auto amp. connector.

3.

Check continuity between upper ventilator 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.

+

Voltage

(Approx.)

Upper ventilator door motor

Connector

Terminal

M256

1

Ground

12 V

Upper ventilator door motor

Continuity

Connector

Terminal

M256

2

Ground

Existed

Upper ventilator door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M256

1

M50

17

Existed

HAC-118

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

DOOR MOTOR

DOOR MOTOR

Diagnosis Procedure

INFOID:0000000006275966

1.

CHECK EACH DOOR MOTOR POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between intake door motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

CHECK EACH DOOR MOTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect intake door motor connector.

3.

Check continuity between intake door motor harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

3.

CHECK EACH DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN

1.

Disconnect A/C auto amp. connector.

2.

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 EACH DOOR MOTOR POWER SUPPLY CIRCUIT FOR SHORT

1.

Disconnect following connectors.

-

Front air mix door motor LH

-

Front air mix door motor RH

-

Front mode door motor

-

Upper vent door motor

-

Rear air mix door motor

-

Rear mode door motor

2.

Check continuity between intake door motor harness connector and ground.

Is the inspection result normal?

+

Voltage

(Approx.)

Intake door motor

Connector

Terminal

M254

1

Ground

12 V

Intake door motor

Continuity

Connector

Terminal

M254

2

Ground

Existed

Intake door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M254

1

M50

17

Existed

Intake door motor

Continuity

Connector

Terminal

M254

1

Ground

Not existed

 

 

 

 

 

 

 

Content   ..  804  805  806  807   ..