Nissan Qashqai (2007-2010). Manual — part 950

HAC-160

< COMPONENT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

MAGNET CLUTCH

3.

Check continuity between heater control panel harness connector M54 terminal 8 and BCM harness con-
nector M65 terminal 15.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Repair harness or connector.

11.

CHECK FAN ON SIGNAL

1.

Reconnect heater control panel connector.

2.

Turn ignition switch ON.

3.

Check voltage between heater control panel harness connector M54 terminal 8 and ground.

4.

Turn fan control dial clockwise

5.

Check voltage between heater control panel harness connector M54 terminal 8 and ground.

Is the inspection result normal?

YES

>> GO TO 14.

NO

>> GO TO 12.

12.

CHECK CIRCUIT CONTINUITY BETWEEN FAN SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect fan switch connector.

3.

Check continuity between fan switch harness connector M88 terminal 6 and 5.

4.

Turn fan control dial clockwise.

5.

Check continuity between fan switch harness connector M88 terminal 6 and 5.

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> Replace heater control panel.

13.

CHECK GROUND CIRCUIT FOR FAN SWITCH

Check continuity between fan switch harness connector M88 terminal 5 and ground.

Heater control panel

BCM

Continuity

Connector

Terminal

Connector

Terminal

M54

8

M65

15

Continuity should exist

(+)

(

−

)

Voltage

Heater control panel

—

Connector

Terminal

M54

8

Ground

Battery voltage

(+)

(

−

)

Condition

Voltage

Heater control panel

—

Connector

Terminal

M54

8

Ground

Fan control dial: except

OFF

Approx. 0

FAN SW

Condition

Continuity

Connector

Terminal

Connector

Terminal

M88

6

M88

5

Fan control dial: OFF

Continuity should not exist

FAN SW

Condition

Continuity

Connector

Terminal

Connector

Terminal

M88

6

M88

5

Fan control dial: except

OFF

Continuity should exist

MAGNET CLUTCH

HAC-161

< COMPONENT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

Is the inspection result normal?

YES

>> GO TO 14.

NO

>> Repair harness or connector.

14.

CHECK CAN COMMUNICATION

Check CAN communication. Refer to

LAN-59, "CAN Communication Signal Chart"

.

• ECM – BCM
• ECM – IPDM E/R
Is the inspection result normal?

YES

>> Replace ECM.

NO

>> Repair or replace malfunctioning part(s).

Component Inspection

INFOID:0000000001069979

REFRIGERANT PRESSURE SENSOR

The refrigerant pressure sensor (1) is attached to the liquid tank.
Make sure that the A/C refrigerant pressure and the sensor output
voltage are within the specified range as shown in the A/C operating
condition figure. Refer to

EC-316, "Description"

[HR16DE (WITH

EURO-OBD)],

EC-595, "Description"

[HR16DE (WITHOUT EURO-

OBD)],

EC-936, "Description"

[MR20DE (WITH EURO-OBD)],

EC-

1215, "Description"

[MR20DE (WITHOUT EURO-OBD)], or

EC-

1380, "Description"

(K9K).

FAN SW

—

Continuity

Connector

Terminal

M88

5

Ground

Continuity should exist

JPIIA0090ZZ

SJIA1841E

HAC-162

< COMPONENT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

PTC HEATER

PTC HEATER

Description

INFOID:0000000001096707

IPDM E/R operate a PTC heater, by a signal of BCM.

Component Function Check

INFOID:0000000001096708

1.

CONFIRM SYMPTOM BY PERFORMING THE FOLLOWING OPERATIONAL CHECK

CONSULT-III ACTIVE TEST

1.

Start engine.

2.

Select “PTC HEATER” of BCM active test item.

CAUTION:

• Engine must be cold.
• Battery must be charged.

3.

Turn fan control dial clockwise.

4.

Turn temperature control dial to full hot position.

5.

With operating the test item, check that PTC heater operation.

6.

Check for warm air at discharge air outlet.

Does the PTC heater operate?

YES

>> END.

NO

>> Go to Diagnosis Procedure. Refer to

HAC-162, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001096709

1.

CHECK PTC HEATER-1 OPERATION

CONSULT -III ACTIVE TEST

1.

Disconnect PTC heater connector.

2.

Start engine.

3.

Select “PTC HEATER” of BCM active test item.

4.

With operating the item, check voltage between PTC heater harness connector E117 terminal 3 and
ground.

In the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 5.

2.

CHECK GROUND CIRCUIT FOR PTC HEATER-1

1.

Turn ignition switch OFF.

2.

Check continuity between PTC heater harness connector E116 terminal 1 and ground.

PTC 3

: PTC heater HI operation

PTC 2

: PTC heater MID operation

PTC 1

: PTC heater LO operation

OFF

: Stop the PTC heater operation

(+)

(

−

)

Test item

Voltage

PTC heater

—

PTC HEATER

Connector

Terminal

E117

3

Ground

OFF

Approx. 0

PTC 1

Battery voltage

PTC 2

Approx. 0

PTC 3

Battery voltage

PTC HEATER

HAC-163

< COMPONENT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK PTC HEATER-2 OPERATION

1.

Start engine.

2.

Select “PTC HEATER” of BCM active test item.

3.

With operating the item, check voltage between PTC heater harness connector E117 terminal 4 and
ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 12.

4.

CHECK GROUND CIRCUIT FOR PTC HEATER-2

1.

Turn ignition switch OFF.

2.

Check continuity between PTC heater harness connector E116 terminal 2 and ground.

Is the inspection result normal?

YES

>> Replace PTC heater.

NO

>> Repair harness or connector.

5.

CHECK VOLTAGE FOR PTC RELAY-1

1.

Turn ignition switch OFF.

2.

Disconnect PTC relay-1.

3.

Turn ignition switch ON.

4.

Check voltage between PTC relay-1 harness connector E53 terminal 3 and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 6.

6.

CHECK FUSE

PTC heater

—

Continuity

Connector

Terminal

E116

1

Ground

Continuity should exist.

(+)

(

−

)

Test item

Voltage

PTC heater

—

PTC HEATER

Connector

Terminal

E117

4

Ground

OFF

Approx. 0

PTC 1

Approx. 0

PTC 2

Battery voltage

PTC 3

Battery voltage

PTC heater

—

Continuity

Connector

Terminal

E116

2

Ground

Continuity should exist

(+)

(

−

)

Voltage

PTC relay-1

—

Connector

Terminal

E53

3

Ground

Battery voltage