Nissan Teana J32. Manual - part 981

VENTILATION SEAT CONTROL UNIT

SE-57

< ECU DIAGNOSIS >

[WITH VENTILATION SEAT]

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

JCJWM0291GB

SE-58

< ECU DIAGNOSIS >

[WITH VENTILATION SEAT]

VENTILATION SEAT CONTROL UNIT

JCJWM0292GB

VENTILATION SEAT CONTROL UNIT

SE-59

< ECU DIAGNOSIS >

[WITH VENTILATION SEAT]

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

FRONT SEAT : Fail-safe

INFOID:0000000003900687

• The ventilation seat control unit is equipped with the fail-safe function.
• When a malfunction occurs in the system as per the following, the ventilation seat control unit stops all out-

puts. The system enters in the system turns OFF position.

JCJWM0293GB

SE-60

< ECU DIAGNOSIS >

[WITH VENTILATION SEAT]

VENTILATION SEAT CONTROL UNIT

*: System voltage is the voltage between ventilation seat control unit power source and the ground. 

NOTE:

When the system enters in the fail-safe mode again after performing resetting procedure, perform diagnosis. 

REAR SEAT

REAR SEAT : Reference Value

INFOID:0000000003940342

TERMINAL LAYOUT

PHYSICAL VALUES

Malfunction

Malfunctioning condition

Reset procedure

Ventilation motor system open circuit

In ventilation seat mode, ventilation motor 
system open circuit is detected for 10 seconds 
or more

Turn OFF key switch and turn ON key 
switch again. System is reset

Ventilation motor system short circuit

In ventilation seat mode, heater unit system 
short circuit is detected for 0.2 seconds or 
more

Turn OFF key switch and turn ON key 
switch again. System is reset

Heater unit system open circuit

In heated seat LO mode, heater unit system 
open circuit is detected for 0.1 seconds or 
more

Turn OFF key switch and turn ON key 
switch again. System is reset

Heater unit system short circuit

In heated seat LO mode, heater unit system 
short circuit is detected for 0.1 seconds or 
more

Turn OFF key switch and turn ON key 
switch again. System is reset

System voltage out of range

System voltage* of ventilation seat control unit 
is out of operation range (8.5 V - 16.5 V)

• When system voltage* returns within nor-

mal range after more than 0.5 seconds, 
system recovers 

• When recovering, system returns to the 

same status as previous

JMJIA2012ZZ

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

(+)

(–)

Signal name

Input/

Output

44

(R)

Ground

Battery power supply

Input

Ignition switch OFF

Battery voltage

45

(B/W)

Ground

Ground

—

Ignition switch ON

0 V

46

(R/W)

Ground

IGN power supply

Input

Ignition switch

OFF or ACC

0 V

ON

Battery voltage

47

LH:(V)

RH:(G/O)

Ground

Ventilation seat switch HI signal

Input

Ventilation seat switch HI

Pressed

0 V

Other than 
above

Battery voltage

48

LH:(V/W)

RH:(G/L)

Ground

Ventilation seat switch LO signal

Input

Ventilation seat switch LO

Pressed

0 V

Other than 
above

Battery voltage