Nissan Sentra. Manual — part 573

HAC-140

< SYSTEM DESCRIPTION >

[MANUAL AIR CONDITIONER]

DIAGNOSIS SYSTEM (IPDM E/R) (WITHOUT INTELLIGENT KEY SYSTEM)

CAN DIAG SUPPORT MNTR

Refer to

LAN-13, "CAN Diagnostic Support Monitor"

.

MOTOR FAN

This test is able to check cooling fan operation [4/3/2/1].

EXTERNAL LAMPS

This test is able to check external lamp operation [Fog/Hi/Lo/TAIL/Off].

Test item

Description

A/C AUTO AMP.

HAC-141

< ECU DIAGNOSIS INFORMATION >

[MANUAL AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

ECU DIAGNOSIS INFORMATION

A/C AUTO AMP.

Reference Value

INFOID:0000000009757741

TERMINAL LAYOUT

PHYSICAL VALUES

ALIIA0579ZZ

Terminal No.

(Wire color)

Description

Condition

Value

+

−

Signal name

Input/

Output

1

*

(GR)

30

(B)

ECV control signal

Output

Ignition
switch ON

ACTIVE
TEST
(HVAC
TEST:
MODE4)

3

*

(L)

30

(B)

Intake sensor signal

Input

Ignition switch ON

0 – 4.8 V

Output voltage varies with evapo-

rator fin temperature

10

*

(P)

30

(B)

Sensor ground

—

Ignition switch ON

0 – 0.1 V

11

(LG)

30

(B)

Ignition power supply

Input

Ignition switch ON

11 – 14 V

12

(SB)

30

(B)

Battery power supply

Input

Ignition switch OFF

11 – 14 V

13

(V)

30

(B)

Power transistor control signal

Output

• Ignition switch ON
• Blower motor: 1st speed

(manual)

SJIA1607E

ZJIA0863J

HAC-142

< ECU DIAGNOSIS INFORMATION >

[MANUAL AIR CONDITIONER]

A/C AUTO AMP.

14

(LG)

30

(B)

Blower fan ON signal

Output

• Ignition switch ON
• Blower motor: OFF

• Ignition switch ON
• Blower motor: ON

15

*

(Y)

30

(B)

A/C ON signal

Output

• Ignition switch ON
• A/C switch: OFF (A/C indi-

cator: OFF)

• Ignition switch ON
• A/C switch: ON (A/C indi-

cator: ON)

16

(W)

30

(B)

RR DEF signal

Output

Defroster
switch

OFF

0 V

ON

12 V

17

(BR)

30

(B)

A/MIX
drive 4

Air mix door motor
(passenger side)
drive signal

Output

• Ignition switch ON
• Right after the tempera-

ture control switch (pas-
senger side) operation

18

(SB)

30

(B)

A/MIX
drive 3

19

(LG)

30

(B)

A/MIX
drive 2

20

(L)

30

(B)

A/MIX
drive 1

21

(W)

30

(B)

Ignition power supply

Input

Ignition switch ON

11 – 14 V

23

*

(P)

30

(B)

A/C auto amp. connection rec-
ognition signal

Output

Ignition switch ON

11 – 14 V

25

(R)

30

(B)

RR DEF feedback

Input

Defroster
switch

OFF

0 V

ON

12 V

Terminal No.

(Wire color)

Description

Condition

Value

+

−

Signal name

Input/

Output

JMIIA0941GB

PKIB4960J

JPMIA0012GB

JMIIA0941GB

JPIIA1647GB

A/C AUTO AMP.

HAC-143

< ECU DIAGNOSIS INFORMATION >

[MANUAL AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

*

:With manual A/C

27

(LG)

30

(B)

Communication signal (A/C con-
trol

→ A/C auto amp.)

Input

Ignition switch ON

28

(BR)

30

(B)

Communication signal (A/C auto
amp.

→ A/C control)

Output

Ignition switch ON

30

(B)

Ground

Ground

—

Ignition switch ON

0 – 0.1 V

35

(G)

30

(B)

FRE

Intake door motor
drive signal

Output

• Ignition switch ON
• Intake switch: REC

→

FRE

9.5 – 13.5 V

• Ignition switch ON
• Intake switch: FRE

→

REC

0 – 1 V

36

(V)

30

(B)

REC

• Ignition switch ON
• Intake switch: FRE

→

REC

9.5 – 13.5 V

• Ignition switch ON
• Intake switch: REC

→

FRE

0 – 1 V

37

(GR)

30

(B)

MODE
drive 4

Mode door motor
drive signal

Output

• Ignition switch ON
• Right after the MODE

switch operation

38

(G)

30

(B)

MODE
drive 3

39

(Y)

30

(B)

MODE
drive 2

40

(O)

30

(B)

MODE
drive 1

Terminal No.

(Wire color)

Description

Condition

Value

+

−

Signal name

Input/

Output

SJIA1522J

SJIA1521J

JPIIA1647GB