Infiniti FX35, FX50 (S51). Manual - part 1633

SE-52

< ECU DIAGNOSIS INFORMATION >

CLIMATE CONTROLLED SEAT CONTROL UNIT

ECU DIAGNOSIS INFORMATION

CLIMATE CONTROLLED SEAT CONTROL UNIT

Reference Value

INFOID:0000000005236637

TERMINAL LAYOUT

PHYSICAL VALUES

A.

B507

B.

B508

C.

B509

JMJIA2080ZZ

Terminal No.

Wire 

color

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

6

Ground

R

COOL switch signal

Input

Climate controlled seat 
switch

HI COOL

2.6 - 4.2

MID COOL

1.6 - 2.5

LO COOL

0.8 - 1.5

OFF

0

7

Ground

L

HEAT switch indicator 
signal

Output

Climate controlled seat 
switch

HEAT

Battery voltage

OFF

0

15

Ground

W

COOL switch indica-
tor signal

Output

Climate controlled seat 
switch

COOL

Battery voltage

OFF

0

16

Ground

G

HEAT switch signal

Input

Climate controlled seat 
switch

HI HEAT

2.6 - 4.2

MID HEAT

1.6 - 2.5

LO HEAT

0.8 - 1.5

OFF

0

21

Ground

P

Climate controlled 
seat switch power 
supply

Output

Ignition switch ON

Battery voltage

31

Ground

L/R

Seat cushion thermal 
electric device HEAT 
signal

Input

Climate controlled seat 
switch

HEAT or 

COOL

0 - Battery voltage*

OFF

0

32

Ground

G/R

Seat cushion thermal 
electric device COOL-
signal

Input

Climate controlled seat 
switch

HEAT or 

COOL

0 - Battery voltage*

OFF

0

33

Ground

B/R

Seat cushion thermal 
electric device sensor 
signal

Input

Climate controlled seat operated

1 - 5

34

Ground

Y/R

Seat cushion thermal 
electric device sensor 
ground

—

Ignition switch ON

0

CLIMATE CONTROLLED SEAT CONTROL UNIT

SE-53

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

*:It changes between battery voitage or 0V

NOTE:
• Measure the value on the condition that the battery voltage is 14 V
• Wait 1 minute or more after terminal electric device is activated, and then start the measurement

35

Ground

V

Seatback therminal 
electric device HEAT 
signal

Input

Climate controlled seat 
switch

HEAT or 

COOL

0 - Battery voltage*

OFF

0

36

Ground

O

Seatback therminal 
electric device COOL 
signal

Input

Climate controlled seat 
switch

HEAT or 

COOL

0 - Battery voltage*

OFF

0

37

Ground

SB

Seatback therminal 
electric device sensor 
signal

Input

Climate controlled seat operated

1 - 5

38

Ground

B

Seatback therminal 
electric device sensor 
ground

—

Ignition switch ON

0

39

Ground

G/W

Blower motor power 
supply

Output

Climate controlled seat 
switch

HEAT or 
COOL

Battery voltage

Other than the above

 0

40

Ground

R/W

Blower motor speed 
control signal

Input

Climate controlled seat 
switch

HEAT 8.5 

- 

9

HI COOL

12

MID COOL

9

LO COOL

8

41

Ground

B/W

Blower motor ground

—

—

0

55

Ground

W

Ignition switch power 
supply

Input

Ignition switch ON

Battery voltage

56

Ground

B

Ground

—

—

0

70

Ground

R

Ignition switch power 
supply

Input

Ignition switch ON

Battery voltage

Terminal No.

Wire 

color

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

SE-54

< ECU DIAGNOSIS INFORMATION >

CLIMATE CONTROLLED SEAT CONTROL UNIT

Wiring Diagram - CLIMATE CONTROLLED SEAT CONTROL SYSTEM  -

INFOID:0000000005568459

JCJWM0384GB

CLIMATE CONTROLLED SEAT CONTROL UNIT

SE-55

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

JCJWM0385GB