Nissan Qashqai (2007-2010). Manual - part 928

 

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Nissan Qashqai (2007-2010). Manual - part 928

 

 

HAC-72

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

PTC HEATER

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

PTC HEATER

HAC-73

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

Check 30A fuse (Nos 37, located in the fuse, fusible link and relay box). Refer to 

PG-111, "Fuse and Fusible

Link Arrangement"

.

Is the inspection result normal?

YES

>> Repair harness or connector.

NO

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

7.

CHECK PTC RELAY-1

Check PTC relay-1. Refer to 

HAC-76, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace PTC relay-1.

8.

CHECK CIRCUIT CONTINUITY BETWEEN PTC RELAY-1 AND PTC HEATER

Check continuity between PTC relay-1 harness connector E53 terminal 5 and PTC heater harness connector
E117 terminal 3.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Repair harness or connector.

9.

CHECK POWER SUPPLY FOR PTC RELAY-1

1.

Turn ignition switch ON.

2.

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

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> GO TO 10.

10.

CHECK FUSE

Check 10A fuse [Nos 17, 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 the blown fuse after repairing the affected circuit if a fuse is blown.

11.

CHECK CIRCUIT CONTINUIT BETWEEN PTC RELAY-1 AND IPDM E/R

Check continuity between PTC relay-1 harness connector E53 terminal 2 and IPDM E/R harness connector
E11 terminal 11.

Is the inspection result normal?

YES

>> GO TO 18.

NO

>> Repair harness or connector.

12.

CHECK VOLTAGE FOR PTC RELAY-2

PTC relay-1

PTC heater

Continuity

 Connector

Terminal

 Connector

Terminal

E53

5

E117

3

Continuity should exist

(+)

(

−

)

Voltage

PTC relay-1

—

 Connector

Terminal

E53

1

Ground

Battery voltage

PTC relay-1

IPDM E/R

Continuity

 Connector

Terminal

 Connector

Terminal

E53

2

E11

11

Continuity should exist

HAC-74

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

PTC HEATER

1.

Turn ignition switch OFF.

2.

Disconnect PTC relay-2.

3.

Turn ignition switch ON.

4.

Check voltage between PTC relay-2 harness connector E54 terminal 3 and ground.

Is the inspection result normal?

YES

>> GO TO 14.

NO

>> GO TO 13.

13.

CHECK FUSE

Check 30A fuse (Nos 35, located in the fuse, fusible link and relay box). Refer to 

PG-111, "Fuse and Fusible

Link Arrangement"

.

Is the inspection result normal?

YES

>> Repair harness or connector.

NO

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

14.

CHECK PTC RELAY-2

Check PTC relay-2. Refer to 

HAC-76, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 15.

NO

>> Replace PTC relay-2.

15.

CHECK CIRCUIT CONTINUIT BETWEEN PTC RELAY-2 AND PTC HEATER

Check continuity between PTC relay-2 harness connector E54 terminal 5 and PTC heater harness connector
E117 terminal 4.

Is the inspection result normal?

YES

>> GO TO 16.

NO

>> Repair harness or connector.

16.

CHECK POWER SUPPLY FOR PTC RELAY-2

1.

Turn ignition switch ON.

2.

Check voltage between PTC relay-2 harness connector E54 terminal 1 and ground.

Is the inspection result normal?

YES

>> GO TO 17.

NO

>> GO TO 10.

17.

CHECK CIRCUIT CONTINUIT BETWEEN PTC RELAY-2 AND IPDM E/R

Check continuity between PTC relay-2 harness connector E54 terminal 2 and IPDM E/R harness connector
E11 terminal 12.

(+)

(

−

)

Voltage

PTC relay-2

—

 Connector

Terminal

E54

3

Ground

Battery voltage

PTC relay-2

PTC heater

Continuity

 Connector

Terminal

 Connector

Terminal

E54

5

E117

4

Continuity should exist.

(+)

(

−

)

Voltage

PTC relay-2

—

 Connector

Terminal

E54

1

Ground

Battery voltage

PTC HEATER

HAC-75

< COMPONENT DIAGNOSIS >

[AUTOMATIC 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 18.

NO

>> Repair harness or connector.

18.

CHECK BCM INPUT (FAN ON) SIGNAL

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

HAC-31, "CONSULT-III Function"

.

Is the inspection result normal?

YES

>> GO TO 21.

NO

>> GO TO 19.

19.

CHECK FAN ON SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage between auto amp. harness connector M53 terminal 24 and ground.

3.

Turn fan control dial clockwise.

4.

Check voltage between auto amp. harness connector M53 terminal 24 and ground.

Is the inspection result normal?

YES

>> GO TO 20.

NO

>> Replace auto amp.

20.

CHECK CIRCUIT CONTINUITY BETWEEN BCM AND AUTO AMP.

1.

Turn ignition switch OFF.

2.

Disconnect BCM harness connector.

3.

Check continuity between BCM harness connector M65 terminal 15 and auto amp. harness connector
M53 terminal 24.

Is the inspection result normal?

YES

>> GO TO 21.

NO

>> Repair harness or connector.

21.

CHECK CAN COMMUNICATION

Check CAN communication. Refer to 

LAN-59, "CAN Communication Signal Chart"

.

PTC relay-1

IPDM E/R

Continuity

 Connector

Terminal

 Connector

Terminal

E54

2

E11

12

Continuity should exist.

FAN CONTROL DIAL ON

: FAN ON SIG ON

FAN CONTROL DIAL OFF

: FAN ON SIG OFF

(+)

(

−

)

Condition

Voltage

Auto amp.

—

 Connector

Terminal

M53

24

Ground

Fan control dial: OFF 

Approx. 12

(+)

(

−

)

Condition

Voltage

Auto amp.

—

 Connector

Terminal

M53

24

Ground

Fan control dial: ON

(Blower motor operates.)

Approx. 0

BCM

Auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M65

15

M53

24

Continuity should exist

 

 

 

 

 

 

 

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