Nissan Tiida C11. Manual - part 841

HAC-28

< COMPONENT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

MAGNET CLUTCH

1.

Turn ignition switch OFF.

2.

Disconnect front air control connector.

3.

While pressing the A/C switch, check continuity between front
air control terminals 1 and 8.

OK or NG

OK

>> GO TO 16.

NG

>> Replace front air control. Refer to XX.

16.

CHECK FRONT AIR CONTROL GROUND CIRCUIT

Check continuity between front air control harness connector M33
terminal 8 and ground.

OK or NG

OK

>> GO TO 17.

NG

>> Repair harness or connector.

17.

CHECK INTAKE SENSOR

Refer to 

HAC-31, "Intake Sensor Component Inspection"

.

OK or NG

OK

>> GO TO 18.

NG

>> Repair or replace as necessary.

18.

CHECK CAN COMMUNICATION 

Check CAN communication. Refer to 

LAN-22, "Trouble Diagnosis Flow Chart"

.

• BCM  –  ECM
• ECM – IPDM E/R

OK or NG

OK

>> Replace BCM. Refer to 

BCS-57, "Removal and Installation of BCM"

.

NG

>> Repair or replace malfunctioning part(s).

19.

CHECK DEFROST A/C SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector.

3.

Press the defrost A/C switch.
NOTE:
The defrost A/C switch is located on back side of the front air
control.

4.

Check continuity between BCM harness connector M19 terminal
49 and ground. 

OK or NG

OK

>> Replace BCM. Refer to 

BCS-57, "Removal and Installation of BCM"

.

NG

>> GO TO 20.

20.

CHECK CIRCUIT CONTINUITY BETWEEN DEFROST A/C SWITCH AND BCM

1 - 8

:Continuity should exist

SJIA0756E

8 - Ground

:Continuity should exist

SJIA0758E

49 - Ground

:Continuity should exist

AWIIA0450ZZ

MAGNET CLUTCH

HAC-29

< COMPONENT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

1.

Disconnect defrost A/C switch connector.

2.

Check continuity between BCM harness connector M19 (A) ter-
minal 49 and defrost A/C switch harness connector M49 (B) ter-
minal 15. 

OK or NG

OK

>> GO TO 21.

NG

>> Repair harness or connector.

21.

CHECK CIRCUIT CONTINUITY BETWEEN DEFROST A/C SWITCH AND GROUND

Check continuity between A/C defrost switch harness connector
M49 terminal 16 and ground. 

OK or NG

OK

>> Replace defrost A/C switch. 

NG

>> Repair harness or connector.

49 - 15

:Continuity should exist

AWIIA0451ZZ

16 - Ground

:Continuity should exist

WJIA2255E

HAC-30

< COMPONENT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

INTAKE SENSOR

INTAKE SENSOR

Component Inspection

INFOID:0000000001675415

COMPONENT DESCRIPTION

Intake Sensor

The intake sensor (1) is located on the A/C unit. It converts tempera-
ture of air after it passes through the evaporator (2) into a resistance
value which is then input to the BCM.

Intake Sensor Diagnosis Procedure

INFOID:0000000001675416

DIAGNOSTIC PROCEDURE FOR INTAKE SENSOR

SYMPTOM: Intake sensor circuit is open or shorted.

1.

CHECK VOLTAGE BETWEEN INTAKE SENSOR AND GROUND

1.

Turn ignition switch OFF.

2.

Disconnect intake sensor connector.

3.

Turn ignition switch ON.

4.

Check voltage between intake sensor harness connector M42
terminal 1 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> GO TO 4.

2.

CHECK CIRCUIT CONTINUITY BETWEEN INTAKE SENSOR AND BCM

ZJIA0798J

AWIIA0452GB

Terminals

Voltage

(Approx.)

(+)

(

−

)

Connector

Terminal 

Ground

Intake sensor: M42

1

5V

SJIA0825E

INTAKE SENSOR

HAC-31

< COMPONENT DIAGNOSIS >

[MANUAL 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 BCM connector.

3.

Check continuity between intake sensor harness connector M42
(A) terminal 2 and BCM harness connector M18 (B) terminal 35.

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connector.

3.

CHECK INTAKE SENSOR

Refer to 

HAC-31, "Intake Sensor Component Inspection"

.

OK or NG

OK

>> Replace BCM. Refer to 

BCS-57, "Removal and Installation of BCM"

.

NG

>> Replace intake sensor. Refer to XX.

4.

CHECK CIRCUIT CONTINUITY BETWEEN INTAKE SENSOR AND BCM

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector.

3.

Check continuity between intake sensor harness connector M42
(A) terminal 1 and BCM harness connector M19 (B) terminal 45.

4.

Check continuity between intake sensor harness connector M42
(A) terminal 1 and ground.

OK or NG

OK

>> Replace BCM. Refer to 

BCS-57, "Removal and Installation of BCM"

.

NG

>> Repair harness or connector.

Intake Sensor Component Inspection

INFOID:0000000001675417

COMPONENT INSPECTION

Intake Sensor

A

B

Continuity

Connector

Terminal

Connector

Terminal

Intake sensor: M42

2

BCM: M18

35

Yes

AWIIA0453ZZ

A

B

Continuity

Connector

Terminal

Connector

Terminal

Intake sensor: M42

1

BCM: M19

45

Yes

A

Ground

Continuity

Connector

Terminal

Intake sensor: M42

1

No

AWIIA0454ZZ