Infiniti QX56 (Z62). Manual — part 109

BCS-50

< ECU DIAGNOSIS INFORMATION >

BCM

81

(Y/R)

Ground

Passenger door an-
tenna (-)

Output

When the pas-
senger door re-
quest switch is
operated with
ignition switch
OFF

When Intelligent Key is
not in the antenna detec-
tion area

When Intelligent Key is in
the antenna detection
area

82

(W/G)

Ground

Back door antenna
(+)

Output

When the back
door request
switch is operat-
ed with ignition
switch OFF

When Intelligent Key is
not in the antenna detec-
tion area

When Intelligent Key is in
the antenna detection
area

83

(B/W)

Ground

Back door antenna (-
)

Output

When the back
door request
switch is operat-
ed with ignition
switch OFF

When Intelligent Key is
not in the antenna detec-
tion area

When Intelligent Key is in
the antenna detection
area

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

+

−

JMKIA3838GB

JMKIA3839GB

JMKIA3838GB

JMKIA3839GB

JMKIA3838GB

JMKIA3839GB

BCS

BCM

BCS-51

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

84

(BR)

Ground

Room antenna 1 (+)
(Instrument center)

Output

Ignition switch
OFF

When Intelligent Key is
not in the antenna detec-
tion area

When Intelligent Key is in
the antenna detection
area

85

(Y)

Ground

Room antenna 1 (-)
(Instrument center)

Output

Ignition switch
OFF

When Intelligent Key is
not in the antenna detec-
tion area

When Intelligent Key is in
the antenna detection
area

86

(W)

Ground

Room antenna 2 (+)
(Console)

Output

Ignition switch
OFF

When Intelligent Key is
not in the antenna detec-
tion area

When Intelligent Key is in
the antenna detection
area

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

+

−

JMKIA3838GB

JMKIA3839GB

JMKIA3838GB

JMKIA3839GB

JMKIA3838GB

JMKIA3839GB

BCS-52

< ECU DIAGNOSIS INFORMATION >

BCM

87

(B)

Ground

Room antenna 2 (

−

)

(Console)

Output

Ignition switch
OFF

When Intelligent Key is
not in the antenna detec-
tion area

When Intelligent Key is in
the antenna detection
area

88

(V)

Ground

Luggage room an-
tenna (+)

Output

Ignition switch
OFF

When Intelligent Key is
not in the antenna detec-
tion area

When Intelligent Key is in
the antenna detection
area

89

(G)

Ground

Luggage room an-
tenna (-)

Output

Ignition switch
OFF

When Intelligent Key is
not in the antenna detec-
tion area

When Intelligent Key is in
the antenna detection
area

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

+

−

JMKIA3838GB

JMKIA3839GB

JMKIA3838GB

JMKIA3839GB

JMKIA3838GB

JMKIA3839GB

BCS

BCM

BCS-53

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

90

(Y)

Ground

Push-button ignition
switch illumination

Output

Push-button ig-
nition switch illu-
mination

ON

12 V

OFF

0 V

91

(O)

Ground

LOCK indicator lamp

Output

LOCK indicator
lamp

OFF (Ignition switch OFF)

Battery voltage

ON

0 V

92

(L)

Ground

Push-button ignition
switch illumination
ground

Output

Tail lamp

OFF

0 V

ON

NOTE:

When the illumination brighten-

ing/dimming level is in the neutral

position

6.0 - 7.0 V

93

(GR/R)

Ground

Intelligent Key warn-
ing buzzer

Output

Intelligent Key
warning buzzer

Sounding

0 V

Not sounding

12 V

94

(Y/G)

Ground

Steering lock unit
communication

Input/

Output

Steering lock

LOCK status

12 V

LOCK or UNLOCK

For 15 seconds after UN-
LOCK

12 V

15 seconds or later after
UNLOCK

0 V

95

(W)

Ground

Steering lock unit
power supply

Output

Ignition switch

OFF or ACC

12 V

ON

0 V

96

(BR)

Ground

ACC relay control

Output

Ignition switch

OFF

0 V

ACC or ON

12 V

97

(R/W)

Ground

Starter relay control

Output

Ignition switch
ON

When selector lever is in
P or N position

12 V

When selector lever is not
in P or N position

0 V

98

(O)

Ground

Ignition relay (IPDM
E/R) control

Output

Ignition switch

OFF or ACC

12 V

ON

0 V

99

(R)

Ground

Ignition relay-1 con-
trol

Output

Ignition switch

OFF or ACC

0 V

ON

12 V

100

(SB)

Ground

Push-button ignition
switch (push switch)

Input

Push-button ig-
nition switch
(push switch)

Pressed

0 V

Not pressed

12 V

101

(W/B)

Ground

Ignition power sup-
ply No. 2

Output

Ignition switch

OFF or ACC

0 V

ON

12 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

+

−

JPMIA1554GB

JMKIA0066GB