Nissan Tiida C11. Manual - part 874

 

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Nissan Tiida C11. Manual - part 874

 

 

HAC-160

< COMPONENT DIAGNOSIS >

[AUTO AIR CONDITIONER (W/O NAVI)]

PTC HEATER CONTROL SYSTEM

Refer to 

XX-XX, "*****"

.

Is the inspection result normal?

YES

>> GO TO 18.

NO

>> Replace ambient temperature sensor. Refer to XX.

18.

CHECK PTC HEATER RELAY-1 POWER SUPPLY CIRCUIT

1.

Disconnect PTC heater connector.

2.

Reconnect all PTC relays.

3.

Start the engine (1,000 RPM minimum).

4.

Check voltage between PTC heater harness connector E65 ter-
minal 3 and ground.

Is the inspection result normal?

YES

>> GO TO 19.

NO

>> Repair harness or connector.

19.

CHECK PTC HEATER RELAY-2 POWER SUPPLY CIRCUIT

Check voltage between PTC heater harness connector E65 terminal
2 and ground.

Is the inspection result normal

YES

>> GO TO 20.

NO

>> Repair harness or connector.

20.

CHECK PTC HEATER RELAY-3 POWER SUPPLY CIRCUIT

Check voltage between PTC heater harness connector E65 terminal
1 and ground.

Is the inspection result normal

YES

>> Replace PTC heater. Refer to XXXX.

NO

>> Repair harness or connector.

PTC HEATER (1500 WATT) : PTC Heater (1500 Watt) Component Inspection

INFOID:0000000001682726

COMPONENT INSPECTION

Blower Relay

Terminals

Voltage

(Approx.)

(+)

(

)

Connector

Terminal

Ground

PTC heater: E65

3

Battery voltage

AWIIA0472ZZ

Terminals

Voltage

(Approx.)

(+)

(

)

Connector

Terminal

Ground

PTC heater: E65

2

Battery voltage

AWIIA0474ZZ

Terminals

Voltage

(Approx.)

(+)

(

)

Connector

Terminal

Ground

PTC heater: E65

1

Battery voltage

AWIIA0476ZZ

PTC HEATER CONTROL SYSTEM

HAC-161

< COMPONENT DIAGNOSIS >

[AUTO AIR CONDITIONER (W/O NAVI)]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

Check continuity between relay terminals 3 and 5.

If NG, replace the blower relay. Refer to XX.

PTC relay

Check continuity between terminal Nos. 3 and 5.

If NG, replace PTC relay. Refer to XX.

Ambient Sensor

After disconnecting ambient sensor connector E60, measure resis-
tance between terminals 3 and 4 at sensor side, using the table
below.

Condition

Continuity

12V direct current supply between terminals 1 and 2

Yes

OFF

No

SCIA1245E

Condition

Continuity

12V direct current supply between terminal Nos. 1 and 2

Yes

No current supply

No

SJIA0931E

Temperature 

°

C (

°

F)

Resistance k

15 (5)

12.73

10 (14)

9.92

5 (23)

7.80

0 (32)

6.19

5 (41)

4.95

10 (50)

3.99

15 (59)

3.24

20 (68)

2.65

25 (77)

2.19

30 (86)

1.81

35 (95)

1.51

40 (104)

1.27

45 (113)

1.07

AWIIA0601ZZ

HAC-162

< COMPONENT DIAGNOSIS >

[AUTO AIR CONDITIONER (W/O NAVI)]

PTC HEATER CONTROL SYSTEM

If NG, replace ambient sensor. Refer to XX.

POWER SUPPLY AND GROUND CIRCUIT FOR CONTROLLER

HAC-163

< COMPONENT DIAGNOSIS >

[AUTO AIR CONDITIONER (W/O NAVI)]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

POWER SUPPLY AND GROUND CIRCUIT FOR CONTROLLER

Component Description

INFOID:0000000001547446

COMPONENT DESCRIPTION

Front Air Control

The front air control has a built-in microcomputer which processes information sent from various sensors
needed for air conditioner operation. The air mix door motor, mode door motor, intake door motor, blower
motor and compressor are then controlled.
The front air control is unitized with control mechanisms. Signal from various switches and Potentio Tempera-
ture Control (PTC) are directly entered into front air control. 
Self-diagnostic functions are also built into front air control to provide quick check of malfunctions in the auto
air conditioner system.

Potentio Temperature Control (PTC)

The PTC is built into the front air control. It can be set at an interval of 1

°

C (34

°

F) in the 18

°

C (64

°

F) to 32

°

C

(90

°

F) temperature range by turning temperature control switch. The set temperature is displayed.

Front Air Control Component Function Check

INFOID:0000000001547447

SYMPTOM: A/C system does not come on.

INSPECTION FLOW

1.

CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - AUTO MODE

1.

Press the AUTO switch and A/C switch.

2.

Display should indicate AUTO. Confirm that the compressor clutch engages (sound or visual inspection).
(Discharge air and blower speed will depend on ambient, in-vehicle and set temperatures.) 

Can a symptom be duplicated?

YES

>> GO TO 2.

NO

>> Perform a complete operational check. Refer to 

HAC-87, "Operational Check"

.

2.

CHECK FOR SERVICE BULLETINS

Check for any service bulletins.

>> GO TO 3.

3.

CHECK POWER AND GROUND CIRCUIT

Check main power supply and ground circuit. Refer to 

HAC-163, "Front Air Control Power and Ground Diag-

nosis Procedure"

.

Is the inspection result normal?

YES

>> System OK.

NO

>> Replace Front air control. Refer to XX. 

Front Air Control Power and Ground Diagnosis Procedure

INFOID:0000000001547448

DIAGNOSTIC PROCEDURE FOR A/C SYSTEM

SYMPTOM: A/C system does not come on.

AWIIA0289GB

 

 

 

 

 

 

 

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