Nissan Qashqai (2007-2010). Manual — part 926

HAC-64

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

BLOWER MOTOR

9.

CHECK BLOWER MOTOR FEEDBACK SIGNAL

1.

Reconnect fan control amp. connector.

2.

Turn ignition switch ON.

3.

Turn fan control dial to 1st speed.

4.

Check voltage between auto amp. harness connector M53 terminal 18 and ground.

Is the inspection result normal?

YES

>> Replace auto amp.

NO

>> Repair harness or connector.

10.

CHECK POWER VOLTAGE OF BLOWER RELAY

1.

Turn ignition switch OFF.

2.

Remove blower relay. Refer to

PG-110, "Fuse, Connector and Terminal Arrangement"

.

3.

Turn ignition switch ON.

4.

Check voltage between blower relay fuse block terminals 1, 3 and body ground. Refer to

PG-108,

"Description"

for relay terminal assignment.

Is the inspection result normal?

YES

>> GO TO 12.

NO

>> GO TO 11.

11.

CHECK IGNITION SWITCH CIRCUIT

Check ignition switch circuit. Refer to

DLK-91, "Diagnosis Procedure"

(WITH I-KEY, WITHOUT SUPER

LOCK),

DLK-355, "Diagnosis Procedure"

(WITH I-KEY & SUPER LOCK),

DLK-597, "Diagnosis Procedure"

(WITHOUT I-KEY, WITHOUT SUPER LOCK) or

DLK-757, "Diagnosis Procedure"

(WITHOUT I-KEY &

SUPER LOCK).

Is the inspection result normal?

YES

>> Repair harness or connector.

NG

>> Replace malfunctioning parts.

12.

CHECK BLOWER RELAY

1.

Turn ignition switch OFF.

2.

Install blower elay. Refer to

PG-110, "Fuse, Connector and Terminal Arrangement"

.

3.

Check operation sound of the blower relay after switching ignition switch ON.

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> Replace blower relay.

13.

CHECK FUSE

Check 15A fuse [Nos 15 and 16, located in the fuse block (J/B)]. Refer to

PG-110, "Fuse, Connector and Ter-

minal Arrangement"

.

Is the inspection result normal?

YES

>> Repair harness or connector.

NG

>> Replace fuse.

14.

CHECK CIRCUIT CONTINUITY BETWEEN BLOWER MOTOR AND FAN CONTROL AMP.

(+)

(

−

)

Voltage

Auto amp.

—

Connector

Terminal

M53

18

Ground

Battery voltage

(+)

(

−

)

Voltage

Blower relay

—

1

Ground

Battery voltage

3

BLOWER MOTOR

HAC-65

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

1.

Turn ignition switch OFF.

2.

Disconnect fan control amp. connector.

3.

Check continuity between blower motor harness connector M312 terminal 2 and fan control amp. harness
connector M311 terminal 1.

Is the inspection result normal?

YES

>> Replace blower motor.

NO

>> Repair harness or connector.

15.

CHECK CIRCUIT FAN CONTROL AMP.

Check continuity between fan control amp. harness connector M311 terminal 3 and 2.

Is the inspection result normal?

YES

>> Replace auto amp.

NO

>> Replace fan control amp.

Component Inspection

INFOID:0000000000954655

Confirm smooth rotation of the blower motor (1).

Blower motor

Fan control amp.

Continuity

Connector

Terminal

Connector

Terminal

M312

2

M311

1

Continuity should exist

Fan control amp.

Continuity

Connector

Terminal

Connector

Terminal

M311

3

M311

2

Continuity should exist

:

Vehicle front

JPIIA0028ZZ

HAC-66

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

MAGNET CLUTCH

MAGNET CLUTCH

Description

INFOID:0000000000954656

Magnet clutch drives a compressor, by a signal of IPDM E/R.

Component Function Check

INFOID:0000000000954657

1.

CONFIRM SYMPTOM BY PERFORMING THE FOLLOWING OPERATIONAL CHECK

1.

Press AUTO switch and A/C switch.

2.

AUTO switch indicator will turn ON. Confirm that the magnet clutch engages (sound or visual inspection).
(Discharge air and blower speed will depend on ambient, in-vehicle and set temperatures.)

Does the magnet clutch operate?

YES

>> END.

NO

>> Go to Diagnosis Procedure. Refer to

HAC-66, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000000954658

1.

PERFORM SELF-DIAGNOSIS STEP-2

Perform self-diagnosis STEP-2. Refer to

HAC-27, "Diagnosis Description"

, see No. 1 to 3.

Is there any malfunction displayed?

YES

>> Go to appropriate malfunctioning sensor circuit. Refer to

HAC-27, "Diagnosis Description"

, see to

No. 11.

NO

>> GO TO 2.

2.

PERFORM SELF-DIAGNOSIS STEP-4

Perform self-diagnosis STEP-4. Refer to

HAC-27, "Diagnosis Description"

, see No. 1 to 6.

Is it operated normally?

YES

>> END.

NO

>> GO TO 3.

3.

PERFORM AUTO ACTIVE TEST

Perform “AUTO ACTIVE TEST”. Refer to

PCS-9, "Diagnosis Description"

.

Does the magnet clutch operate?

YES

>> •

WITH CONSULT-III: GO TO 7.

•

WITHOUT CONSULT-III: GO TO 8.

NO

>> Check 10A fuse (No. 53, located in IPDM E/R), and GO TO 4.

4.

CHECK CIRCUIT CONTINUITY BETWEEN IPDM E/R AND COMPRESSOR

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector and compressor connector.

3.

Check continuity between IPDM E/R harness connector E12 terminal 23 and compressor harness con-
nector F17 (With Gasoline Engine) or F18 (With Diesel Engine) terminal 1.

With Gasoline Engine

With Diesel Engine

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair harness or connector.

IPDM E/R

Compressor

Continuity

Connector

Terminal

Connector

Terminal

E12

23

F17

1

Continuity should exist

IPDM E/R

Compressor

Continuity

Connector

Terminal

Connector

Terminal

E12

23

F18

1

Continuity should exist

MAGNET CLUTCH

HAC-67

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

5.

CHECK CIRCUIT CONTINUITY BETWEEN COMPRESSOR GROUND

Check continuity between compressor harness connector F17 (With Gasoline Engine) or F18 (With Diesel
Engine) terminal 2 and ground.

With Gasoline Engine

With Diesel Engine

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair harness or connector.

6.

CHECK MAGNET CLUTCH CIRCUIT

Check for operation sound when applying battery voltage direct current to terminal.
Is the inspection result normal?

YES

>> 1.

Replace IPDM E/R.

2.

Refer to self-diagnosis procedure

HAC-27, "Diagnosis Description"

and perform self-diagno-

sis STEP-4. Confirm that magnet clutch operation normal.

NO

>> 1.

Replace compressor.

2.

Refer to self-diagnosis procedure

HAC-27, "Diagnosis Description"

and perform self-diagno-

sis STEP-4. Confirm that magnet clutch operation normal.

7.

CHECK BCM INPUT (COMPRESSOR ON) SIGNAL

Check compressor ON/OFF signal in “DATA MONITOR”. Refer to

HAC-31, "CONSULT-III Function"

.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> GO TO 8.

8.

CHECK CIRCUIT CONTINUITY BETWEEN BCM AND AUTO AMP.

1.

Turn ignition switch OFF.

2.

Disconnect BCM harness connector and auto amp. harness connector.

3.

Check continuity between BCM harness connector M65 terminal 14 and auto amp. harness connector
M53 terminal 5.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Repair harness or connector.

9.

CHECK BCM

1.

Connect BCM harness connector.

2.

Turn ignition switch ON.

3.

Check voltage between BCM harness connector M65 terminal 14 and ground.

Compressor

—

Continuity

Connector

Terminal

F17

2

Ground

Continuity should exist

Compressor

—

Continuity

Connector

Terminal

F18

2

Ground

Continuity should exist

A/C SW ON

: AIR COND SW ON

A/C SW OFF

: AIR COND SW OFF

BCM

Auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M65

14

M53

5

Continuity should exist