Nissan Qashqai (2007-2010). Manual — part 948

HAC-152

< COMPONENT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

INTAKE DOOR MOTOR

6.

CHECK FUSE

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

PG-110, "Fuse, Connector and Terminal

Arrangement"

.

Is the inspection result normal?

YES

>> Repair harness or connector.

NO

>> Replace fuse.

BLOWER MOTOR

HAC-153

< COMPONENT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

C

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HAC

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BLOWER MOTOR

Description

INFOID:0000000001069968

COMPONENT DESCRIPTION

The blower motor (1) utilizes a brush motor with a sirocco fan type.

Component Function Check

INFOID:0000000001069969

1.

CONFIRM SYMPTOM BY PERFORMING THE FOLLOWING OPERATIONAL CHECK

1.

Turn fan control dial clockwise. Blower should operate on low speed.

2.

Turn fan control dial clockwise, and continue checking blower speed until all speeds checked.

Is the inspection result normal?

YES

>> END.

NO

>> Go to diagnosis procedure. Refer to

HAC-153, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000001069970

1.

CHECK BLOWER MOTOR OPERATING

Check blower motor operating.

Is blower motor operation under starting blower speed control?

YES

>> END.

NO

>> Blower motor dose not operate: GO TO 2.

2.

CHECK POWER SUPPLY FOR BLOWER MOTOR

1.

Turn ignition switch OFF.

2.

Disconnect blower motor connector.

3.

Turn ignition switch ON.

4.

Check voltage between blower motor harness connector M312 terminal 1 and ground.

Is the inspection result normal?

OK

>> GO TO 3.

NG

>> GO TO 4.

3.

CHECK BLOWER MOTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Turn fan control dial clockwise to 4th.

3.

Check continuity between blower motor harness connector M312 terminal 2 and ground.

:

Vehicle front

JPIIA0028ZZ

(+)

(

−

)

Voltage

Blower motor

—

Connector

Terminal

M312

1

Ground

Battery voltage

HAC-154

< COMPONENT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

BLOWER MOTOR

Is the inspection result normal?

YES

>> Replace blower motor.

NO

>> GO TO 10.

4.

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 the 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 5.

NO

>> GO TO 7.

5.

CHECK BLOWER RELAY

1.

Turn ignition switch OFF.

2.

Install blower relay. Refer to

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

.

3.

Turn ignition switch ON.

4.

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

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace blower relay.

6.

CHECK FUSE

Check 15A fuses [No. 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.

7.

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.

8.

CHECK CIRCUIT CONTINUITY BETWEEN BLOWER FAN RESISTOR.

1.

Turn ignition switch OFF.

2.

Disconnect blower fan resistor connector.

3.

Check continuity between blower fan resistor harness connector M305 terminal 1 and 2, 3, 4. Refer to

HAC-155, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 9.

Blower motor

—

Condition

Continuity

Connector

Terminal

M312

2

Ground

Fan control dial: 4th

Continuity should exist

(+)

(

−

)

Voltage

Blower relay

—

1

Ground

Battery voltage

3

BLOWER MOTOR

HAC-155

< COMPONENT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

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HAC

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NO

>> Replace blower fan resistor.

9.

CHECK CIRCUIT CONTINUITY BETWEEN BLOWER MOTOR AND BLOWER FAN RESISTOR

1.

Disconnect blower motor connector.

2.

Check continuity between blower motor harness connector M312 terminal 2 and blower fan resistor M305
terminal 1.

Is the inspection result normal?

OK

>> GO TO 10.

NG

>> Repair harness or connector.

10.

CHECK CIRCUIT CINTINUITY BETWEEN BLOWER MOTOR RESISTOR AND FAN SWITCH

1.

Disconnect fan switch connector.

2.

Check continuity between blower motor resistor harness connector M305 terminal 2, 3, 4 and fan switch
M88 terminal 2, 3, 4.

Is the inspection result normal?

OK

>> GO TO 11.

NG

>> Repair harness or connector.

11.

CHECK FAN SWITCH

Check continuity between fan switch harness connector M88 terminal 5 and 1, 2, 3, 4, 6.

Is the inspection result normal?

YES

>> Repair fan switch ground harness or connector.

NO

>> Replace fan switch.

Component Inspection

INFOID:0000000001069971

BLOWER MOTOR

Blower motor

Blower fan resistor

Continuity

Connector

Terminal

Connector

Terminal

M312

2

M305

1

Continuity should exist

Blower fan resistor

Fan SW

Continuity

Connector

Terminal

Connector

Terminal

M305

2

M88

2

Continuity should exist

3

3

4

4

FAN SW

Condition

Continuity

Connector

Terminal

Connector

Terminal

M88

5

M88

6

Fan control dial: except
OFF

Continuity should exist

4

Fan control dial: 1st

3

Fan control dial: 2nd

2

Fan control dial: 3rd

1

Fan control dial: 4th