Nissan Qashqai J11. Manual - part 1118

 

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Nissan Qashqai J11. Manual - part 1118

 

 

HAC-108

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

A/C AUTO AMP.

A/C AUTO AMP. : Diagnosis Procedure

INFOID:0000000010432228

1.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check 10 A fuse [No. 14 (without stop/start system), located in fuse block (J/B)], [No. 76 (with stop/start
system)].
NOTE:
Refer to 

PG-104, "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 A/C AUTO AMP. ACCESSORY POWER SUPPLY

1.

Disconnect A/C auto amp. connector. 

2.

Turn ignition switch ON. 

3.

Check voltage between A/C auto amp. harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector between A/C auto amp. and fuse.

3.

CHECK A/C AUTO AMP. GROUND CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Check continuity between A/C auto amp. 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.

A/C CONTROL

A/C CONTROL : Diagnosis Procedure

INFOID:0000000010432229

1.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check 10 A fuse [No. 14 (without stop/start system), located in fuse block (J/B)], [No. 76 (with stop/start
system)].
NOTE:
Refer to 

PG-104, "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 A/C CONTROL POWER SUPPLY

1.

Turn ignition switch OFF.

+

Voltage

A/C auto amp.

Connector

Terminal

M141

41

Ground

11 - 14 V

A/C auto amp.

Continuity

Connector

Terminal

M141

43

Ground

Existed

POWER SUPPLY AND GROUND CIRCUIT

HAC-109

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

2.

Disconnect A/C control connector. 

3.

Turn ignition switch ON.

4.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

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

3.

CHECK A/C CONTROL GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

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

Is the inspection result normal?

YES

>> Replace A/C control. Refer to 

HAC-128, "Removal and Installation"

.

NO

>> Repair harness or connector.

+

Voltage

A/C control

Connector

Terminal

M6

4

Ground

11 - 14 V

A/C control

Continuity

Connector

Terminal

M6

1

Ground

Existed

HAC-110

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

BLOWER MOTOR

BLOWER MOTOR

Diagnosis Procedure

INFOID:0000000010432235

1.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check following fuses.

-

20 A fuse [Nos. 7 and 17, located in fuse block (J/B)]

NOTE:
Refer to 

PG-104, "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.

CHECKPOWER TRANSISTOR POWER SUPPLY

1.

Disconnect power transistor connector. 

2.

Turn ignition switch ON.

3.

Check voltage between power transistor harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK BLOWER RELAY

1.

Turn ignition switch OFF.

2.

Check blower relay. Refer to 

HAC-113, "Component Inspection (Blower Relay)"

.

Is the inspection result normal?

YES

>> Repair harness or connector between power transistor and fuse.

NO

>> Replace blower relay.

4.

CHECK BLOWER MOTOR CONTROL CIRCUIT

1.

Turn ignition switch OFF.

2.

Connect power transistor connector. 

3.

Disconnect blower motor connector. 

4.

Turn ignition switch ON.

5.

Check voltage between blower motor harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

CHECK BLOWER MOTOR CONTROL CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect power transistor connector.

3.

Check continuity between power transistor harness connector and blower motor harness connector. 

+

Voltage

Blower motor

Connector

Terminal

M359

4

Ground

Battery voltage

+

Voltage

Blower motor

Connector

Terminal

M357

1

Ground

Battery voltage

BLOWER MOTOR

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

>> Replace power transistor. Refer to 

HAC-136, "Removal and Installation"

.

NO

>> Repair harness or connector.

6.

CHECK BLOWER MOTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect power transistor connector.

3.

Check continuity between power transistor harness connector and blower motor harness connector. 

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair harness or connector.

7.

CHECK POWER TRANSISTOR GROUND CIRCUIT

Check continuity between power transistor harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair harness or connector.

8.

CHECK POWER TRANSISTOR CONTROL SIGNAL

1.

Connect power transistor connector and A/C auto amp. connector. 

2.

Turn ignition switch ON.

3.

Set air outlet to VENT. 

4.

Change fan speed from 1st – 7th, and check duty ratios between power transistor harness connector and
ground by using an oscilloscope. 
NOTE:
Calculate the drive signal duty ratio as shown in the figure.
T2 = Approx. 2.5 ms

Power transistor

Blower motor

Continuity

Connector

Terminal

Connector

Terminal

M360

5

M357

1

Existed

Power transistor

Blower motor

Continuity

Connector

Terminal

Connector

Terminal

M360

6

M357

2

Existed

Power transistor

Continuity

Connector

Terminal

M359

2

Ground

Existed

+

Condition

Duty ratio

(Approx.)

Voltage

Power transistor

Connector

Terminal

Fan speed (manual) 

Air outlet: VENT

For Europe 
and Russia

Except for Eu-
rope and Rus-

sia

M359

1

Ground

1st

21%

23%

2nd

24%

29%

3rd

31%

36%

4th

40%

44%

5th

54%

52%

6th

70%

61%

7th

100%

72%

JPIIA1646GB

 

 

 

 

 

 

 

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