Nissan Teana J32. Manual - part 676

MAGNET CLUTCH

HAC-73

< COMPONENT DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

C

D

E

F

G

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J

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B

HAC

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5.

CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III

1.

Using CONSULT-III, perform “SELF-DIAGNOSIS RESULTS” of HVAC. 

2.

Check if any DTC is displayed in the self-diagnosis results. 

NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to 

HAC-

42, "DTC Logic"

 or 

HAC-43, "DTC Logic"

. 

Is any DTC displayed?

YES

>> Perform the diagnosis that is applicable to the sensor and actuator. Refer to 

HAC-85, "DTC

Index"

. 

NO

>> GO TO 6.

6.

CHECK A/C AUTO AMP. INPUT SIGNAL

Using CONSULT-III, check “On/Off” of “AIR COND SIG” and “HEATER FAN SW” in “DATA MONITOR” of
HVAC. Refer to 

HAC-38, "CONSULT-III Function"

. 

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Replace A/C auto amp.

7.

CHECK REFRIGERANT PRESSURE SENSOR

Check refrigerant pressure sensor. Refer to 

EC-348, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace malfunctioning parts.

A/C SWITCH ON

: AIR COND SIG On

A/C SWITCH OFF

: AIR COND SIG Off

FAN CONTROL DIAL ON

: HEATER FAN SW On

FAN CONTROL DIAL OFF

: HEATER FAN SW Off

HAC-74

< COMPONENT DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

A/C CONTROL SIGNAL CIRCUIT

A/C CONTROL SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000003846366

1.

CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III

1.

Using CONSULT-III, perform “SELF-DIAGNOSIS RESULTS” of HVAC. 

2.

Check if any DTC is displayed in the self-diagnosis results. 

NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to 

HAC-

42, "DTC Logic"

 or 

HAC-43, "DTC Logic"

. 

Is any DTC displayed?

YES

>> Perform the diagnosis that is applicable to the sensor and actuator. Refer to 

HAC-85, "DTC

Index"

. 

NO

>> GO TO 2.

2.

CHECK TX (A/C CONTROL 

→

 A/C AUTO AMP.) CIRCUIT CONTINUITY

1.

Disconnect the A/C control and the A/C auto amp. connector.

2.

Check continuity between A/C control harness connector and A/C auto amp. harness connector. 

3.

Check continuity between A/C control harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK RX (A/C AUTO AMP. 

→

 A/C CONTROL) CIRCUIT CONTINUITY

1.

Disconnect the A/C control and the A/C auto amp. connector.

2.

Check continuity between A/C control harness connector and A/C auto amp. harness connector. 

3.

Check continuity between A/C control harness connector and ground. 

Is the inspection result normal?

YES

>> Perform trouble diagnosis for the A/C control. Refer to 

HAC-65, "A/C CONTROL : Diagnosis Pro-

cedure"

. 

NO

>> Repair harness or connector.

A/C control

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M95

4

M50

7

 

Existed

A/C control

—

Continuity

Connector

Terminal

M95

4

Ground

 Not existed

A/C control

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M95

3

M50

6

 

Existed

A/C control

—

Continuity

Connector

Terminal

M95

3

Ground

 Not existed

A/C AUTO AMP.

HAC-75

< ECU DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

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ECU DIAGNOSIS

A/C AUTO AMP.

Reference Value

INFOID:0000000003846375

VALUES ON THE DIAGNOSIS TOOL

CONSULT-III MONITOR ITEM

TERMINAL LAYOUT

PHYSICAL VALUES

Monitor item

Condition

Value/Status

COMP REQ SIG

Engine: Run at idle after 
warming up 

A/C switch: ON
(Compressor operation sta-
tus) 

On

A/C switch: OFF

Off

FAN REQ SIG

Engine: Run at idle after 
warming up 

Blower fan: ON

On

Blower fan: OFF

Off

AMB TEMP SEN

Ignition switch ON

—

 

−

30 - 55

°

C (

−

22 - 131

°

F)

IN-VEH TEMP

Ignition switch ON

—

 

−

30 - 55

°

C (

−

22 - 131

°

F)

INT TEMP SEN

Ignition switch ON

—

 

−

30 - 55

°

C (

−

22 - 131

°

F)

SUNLOAD SEN

Ignition switch ON

—

0 - 1045 W/m

2

(0 - 900 kcal/m

2

·h)

AMB SEN CAL

Ignition switch ON

—

−

30 - 55

°

C (

−

22 - 131

°

F)

IN-VEH CAL

Ignition switch ON

—

−

30 - 55

°

C (

−

22 - 131

°

F)

INT TEMP CAL

Ignition switch ON

—

−

30 - 55

°

C (

−

22 - 131

°

F)

SUNL SEN CAL

Ignition switch ON

—

0 - 1045 W/m

2

(0 - 900 kcal/m

2

·h)

FAN DUTY

Engine: Run at idle after 
warming up 

Blower fan: ON

21 - 91%

Blower fan: OFF

0%

XM

Ignition switch ON

—

−

100 - 150

°

ENG COOL TEMP

Ignition switch ON

—

Values according to coolant 
temperature

VEHICLE SPEED

Driving

—

Equivalent to speedometer 
reading

JSIIA1205ZZ

HAC-76

< ECU DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

A/C AUTO AMP.

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

−

Signal name

Input/

Output

6

(L)

Ground

TX (AMP > SW·DISP)

 Input

—

—

7

(P)

Ground

RX (SW > AMP)

Output

—

—

10

(L/R)

Ground

LAN signal

Input/

Output

—

11

(L/W)

Ground

Power supply for each door 
motor

Input

Ignition switch ON

Battery voltage

15

(O)

Ground

Sunload sensor signal

Input

—

—

16

(R/G)

Ground

Intake sensor signal

Input

—

—

17

(V/W)

Ground

ACC Power supply 

—

Ignition switch ACC

Battery voltage

19

(B)

Ground

Ground

—

Ignition switch ON

0 V

20

(G/W)

Ground

IGN Power supply

—

Ignition switch ON

Battery voltage

26

(GR)

Ground

Rear window defogger feed-
back signal

Input

Rear window defogger switch: 
OFF

0 V

Rear window defogger switch: 
ON

12 V

27

(GR/W)

Ground

Rear window defogger ON 
signal

Output

—

12  V

When rear window defogger 
switch is pushed.

0 V

32

(L/Y)

Ground

Blower motor control signal

Output

• Ignition switch ON
• Blower speed: 1st speed

(manual)

34

(P)

Ground

A/C auto amp. connection 
recognition signal

Output

Ignition switch ON

5V

35

(O/B)

Ground

Ambient sensor signal

Input

—

—

36

(LG)

Ground

In-vehicle sensor signal

Input

—

—

37

(B/Y)

Ground

Sensor ground

—

Ignition switch ON

 0 V

39

(B)

Ground

Ground

—

Ignition switch ON

 0 V

40

(Y/R)

Ground

BATT Power supply

—

Ignition switch OFF

Battery voltage

SJIA1453J

JSIIA0096ZZ