Nissan Leaf. Instruction — part 764

HEAT PUMP CONTROL UNIT

HAC-59

< ECU DIAGNOSIS INFORMATION >

[AUTO A/C (WITH HEAT PUMP)]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

HEAT PUMP CONTROL UNIT

Reference Value

INFOID:0000000010121774

TERMINAL LAYOUT

INPUT/OUTPUT SIGNAL STANDARD

JMIIA2752ZZ

Terminal No.

(Wire color)

Item

Test condition

Standard

+

−

Signal name

Input/

Output

1

(BR)

16

(B)

LIN

Input/

Output

Power switch ON

2

(V)

16

(B)

Compressor discharge refrigerant
temperature signal

Input

• Power switch ON
• When air conditioner is

operating

6

(LG)

16

(B)

Refrigerant channel switching 2
way type valve signal

Output

• Power switch ON
• Heat ON and FULL HOT

operation

9.5 – 13.5 V

• Power switch ON
• A/C ON and FULL COLD

operation

0 – 1 V

7

(W)

16

(B)

Refrigerant channel switching 3
way type valve signal

Output

• Power switch ON
• Heat ON and FULL HOT

operation

9.5 – 13.5 V

• Power switch ON
• A/C ON and FULL COLD

operation

0 – 1 V

8

(B)

16

(B)

Sensor ground

—

Power switch ON

0 – 0.1 V

9

(V)

16

(B)

Battery power supply

Input

Power switch OFF

11 – 14 V

JSIIA1667ZZ

JSIIA1779ZZ

HAC-60

< ECU DIAGNOSIS INFORMATION >

[AUTO A/C (WITH HEAT PUMP)]

HEAT PUMP CONTROL UNIT

11

(R)

16

(B)

Compressor suction refrigerant
temperature signal

Input

• Power switch ON
• When air conditioner is

operating

16

(B)

Ground

Ground

—

Power switch ON

0 – 0.1 V

Terminal No.

(Wire color)

Item

Test condition

Standard

+

−

Signal name

Input/

Output

JSIIA1780ZZ

AUTOMATIC AIR CONDITIONING SYSTEM

HAC-61

< WIRING DIAGRAM >

[AUTO A/C (WITH HEAT PUMP)]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

WIRING DIAGRAM

AUTOMATIC AIR CONDITIONING SYSTEM

Wiring Diagram

INFOID:0000000010121775

AAIWA0185GB

HAC-62

< WIRING DIAGRAM >

[AUTO A/C (WITH HEAT PUMP)]

AUTOMATIC AIR CONDITIONING SYSTEM

AAIWA0186GB