Nissan Tiida C11. Manual - part 894

HAC-240

< COMPONENT DIAGNOSIS >

[AUTO AIR CONDITIONER (W/NAVI)]

MAGNET CLUTCH

1.

Turn ignition switch OFF. 

2.

Disconnect A/C compressor connector.

3.

Start the engine.

4.

Press AUTO switch and A/C switch ON.

5.

Check voltage between A/C compressor harness connector F3
terminal 1 and ground. 

Is the inspection result normal

YES

>> Replace A/C compressor. Refer to XX.

NO

>>

Check 10A fuse (No. 42), located in the IPDM ER.

• If fuse is OK, GO TO 4.
• If fuse is NG, replace fuse and check harness for short circuit. Repair or replace if necessary.

4.

CHECK MAGNET CLUTCH

Check for operation sound when applying battery voltage direct cur-
rent to terminal.

Is the inspection result normal?

OK

>> GO TO 5.

NO

>> Replace A/C compressor. Refer to XX.

5.

CHECK CIRCUIT CONTINUITY BETWEEN IPDM E/R AND COMPRESSOR

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector.

3.

Check continuity between A/C compressor harness connector
F3 (A) terminal 1 and IPDM E/R harness connector E43 (B) ter-
minal 11.

Is the inspection result normal

YES

>> Replace IPDM E/R. Refer to XX.

NO

>> Repair harness or connector.

6.

CHECK BCM INPUT (A/C COMPRESSOR ON) SIGNAL

Check A/C compressor ON/OFF signal. Refer to 

HAC-212, "CONSULT-III Function (BCM)"

.

Is the inspection result normal

YES

>> GO TO 9.

NO

>> GO TO 7.

7.

CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL AND BCM.

Terminals

Voltage

(Approx.)

(+)

(

−

)

Connector

Terminal 

Ground

Compressor: F3

1

12V

SJIA0743E

RJIA2005E

A

B

Continuity

Connector

Terminal

Connector

Terminal

Yes

Compressor: F3

1

IPDM E/R: 

E43

11

AWIIA0305ZZ

A/C SW ON

: AIR COND SW ON

A/C SW OFF

: AIR COND SW OFF

MAGNET CLUTCH

HAC-241

< COMPONENT DIAGNOSIS >

[AUTO AIR CONDITIONER (W/NAVI)]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

1.

Turn ignition switch OFF.

2.

Disconnect front air control connector and BCM connector.

3.

Check continuity between front air control harness connector
M85 (A) terminal 23 and BCM harness connector M19 (B) termi-
nal 61.

4.

Check continuity between front air control harness connector
M85 (A) terminal 23 and ground.

Is the inspection result normal

YES

>> GO TO 8.

NO

>> Repair harness or connector.

8.

CHECK VOLTAGE FOR FRONT AIR CONTROL (A/C COMPRESSOR ON SIGNAL)

1.

Reconnect front air control connector and BCM connector.

2.

Turn ignition switch ON.

3.

Confirm A/C compressor ON signal between front air control
harness connector M85 terminal 23 and ground using oscillo-
scope.

Is the inspection result normal

YES

>> GO TO 9.

NO

>> Replace front air control. Refer to XXXX.

9.

CHECK REFRIGERANT PRESSURE SENSOR

WITH CONSULT-III

1.

Start the engine.

2.

Check the voltage of refrigerant pressure sensor. 

WITHOUT CONSULT-III

A

B

Continuity

Connector

Terminal

Connector

Terminal

Front air control: 

M85

23

BCM: M19

61

Yes

A

Ground

Continuity

Connector

Terminal

Front air control: 

M85

23

No

AWIIA0561ZZ

Terminals

Condition

Voltage

(Approx.)

(+)

(-)

connector

Terminal

Front air 

control: 

M85

23

Ground

A/C switch: 
ON
(Blower mo-
tor operates.)

SJIA0890E

ZJIA0584J

HAC-242

< COMPONENT DIAGNOSIS >

[AUTO AIR CONDITIONER (W/NAVI)]

MAGNET CLUTCH

1.

Start the engine.

2.

Check voltage between ECM harness connector F11 and
ground.

Is the inspection result normal

YES

>> •

WITH CONSULT-III

GO TO 10.

•

WITHOUT CONSULT-III

GO TO 11.

NO

>> Refer to 

XX-XX, "*****"

 (HR16DE W/EURO-OBD), 

XX-XX, "*****"

 (HR16DE W/O EURO-OBD),

EC-988, "Component Function Check"

 (MR18DE W/EURO-OBD), 

XX-XX, "*****"

 (MR18DE W/O

DURO-OBD) or 

EC-1166, "Diagnosis Procedure"

 (K9K).

10.

CHECK BCM INPUT (FAN ON) SIGNAL

Check FAN ON/OFF signal. Refer to 

HAC-212, "CONSULT-III Function (BCM)"

.

Is the inspection result normal

YES

>> GO TO 13.

NO

>> GO TO 11.

11.

CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL AND BCM

1.

Turn ignition switch OFF.

2.

Disconnect front air control connector and BCM connector.

3.

Check continuity between front air control harness connector
M85 (A) terminal 22 and BCM harness connector M19 (B) termi-
nal 61.

4.

Check continuity between front air control harness connector
M85 (A) terminal 22 and ground.

Is the inspection result normal

YES

>> GO TO 12.

NO

>> Repair harness or connector.

12.

CHECK VOLTAGE FOR FRONT AIR CONTROL (FAN ON SIGNAL)

Terminals

Condition

Voltage

(Approx.)

(+)

(-)

Connector

Terminal 

 ECM: F11

41 without 

diesel

Ground

A/C switch: ON
(Blower motor 
operates.)

1-4V

78 with diesel

AWIIA0562ZZ

FAN SW ON

: FAN ON SIG ON

FAN SW OFF

: FAN ON SIG OFF

A

B

Continuity

Connector

Terminal

Connector

Terminal

Front air control: 

M85

22

BCM: M19

50

Yes

A

Ground

Continuity

Connector

Terminal

Front air control: 

M85

22

No

AWIIA0563ZZ

MAGNET CLUTCH

HAC-243

< COMPONENT DIAGNOSIS >

[AUTO AIR CONDITIONER (W/NAVI)]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

1.

Reconnect front air control connector and BCM connector.

2.

Turn ignition switch ON.

3.

Confirm fan ON signal between front air control harness connec-
tor M85 terminal 22 and ground using oscilloscope.

Is the inspection result normal

YES

>> Replace front air control. Refer to XXXX.

NO

>> Replace BCM. Refer to XXXX.

13.

CHECK CAN COMMUNICATION

Check CAN communication. Refer to 

LAN-22, "Trouble Diagnosis Flow Chart"

• BCM  –  ECM
• ECM – IPDM E/R

Is the inspection result normal

YES

>> INSPECTION END

NO

>> Repair or replace malfunction part(s).

Terminals

Condition

Output waveform

(+)

(

−

)

Connec-
tor

Terminal 

Ground

Front air 

control: 

M85

22

blower 

speed: 1st

SJIA0892E

ZJIA0583J