Infiniti QX56 (Z62). Manual - part 108

BCS-46

< ECU DIAGNOSIS INFORMATION >

BCM

44

(G/W)

Ground

Rear wiper stop po-
sition

Input

Ignition switch 
ON

Rear wiper stop position

12 V

Any position other than 
rear wiper stop position

0 V

45

(W)

Ground

Passenger door 
switch

Input

Passenger door 
switch

OFF (When passenger 
door closed)

7.0 - 8.0 V

ON (When passenger 
door opened)

0 V

46

(GR)

Ground

Rear RH door switch

Input

Rear RH door 
switch

OFF (When rear RH door 
closed)

7.0 - 8.0 V

ON (When rear RH door 
opened)

0 V

47

(GR/R)

Ground

Driver door switch

Input

Driver door 
switch

OFF (When driver door 
closed)

7.0 - 8.0 V

ON (When driver door 
opened)

0 V

48

(O)

Ground

Rear LH door switch

Input

Rear LH door 
switch

OFF (When rear LH door 
closed)

7.0 - 8.0 V

ON (When rear door LH 
opened)

0 V

49

(BR/Y)

Ground

Luggage room lamp

Output

Luggage room 
lamp

OFF

12 V

ON

0 V

51

(W/R)

Ground

Back door request 
switch

Input

Back door re-
quest switch

ON (Pressed)

0 V

OFF (Not pressed)

12 V

54

(L)

Ground

Rear wiper

Output

Rear wiper

OFF (Stopped)

0 V

ON (Activated)

12 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

−

PKIB4960J

PKIB4960J

PKIB4960J

PKIB4960J

BCS

BCM

BCS-47

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

55

(G)

Ground

Rear door UNLOCK

Output

Rear door

UNLOCK (Actuator is acti-
vated)

12 V

Other then UNLOCK (Ac-
tuator is not activated)

0 V

56

(W/R)

Ground

Interior room lamp 
power supply

Output

Interior room lamp battery saver is activated.
(Cuts the interior room lamp power supply)

0 V

Interior room lamp battery saver is not acti-
vated.
(Outputs the interior room lamp power sup-
ply)

12 V

57

(LG)

Ground

Battery power sup-
ply

Input

Ignition switch OFF

Battery voltage

59

(G)

Ground

Passenger door UN-
LOCK

Output

Passenger door

UNLOCK (Actuator is acti-
vated)

12 V

Other then UNLOCK (Ac-
tuator is not activated)

0 V

60

(G)

Ground

Turn signal LH

Output

Ignition switch 
ON

Turn signal switch OFF

0 V

Turn signal switch LH

6.0 - 7.0 V

61

(G/Y)

Ground

Turn signal RH

Output

Ignition switch 
ON

Turn signal switch OFF

0 V

Turn signal switch RH

6.0 - 7.0 V

62

(R)

Ground

Step lamp

Output

Step lamp

ON

0 V

OFF

12 V

63

(BR)

Ground

Interior room lamp 
timer control

Output

Interior room 
lamp

OFF

12 V

ON

0 V

64

(GR/R)

Ground

Cranking request

input

Ignition switch 
ON

Engine stopped (Selector 
lever is in P position)

0 V

Engine stopped (Selector 
lever is not in P position)

12 V

Engine running

12 V

65

(R)

Ground

All doors, fuel lid 
LOCK

Output

All doors, fuel lid

LOCK (Actuator is activat-
ed)

12 V

Other then LOCK (Actua-
tor is not activated)

0 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

−

PKIC6370E

PKIC6370E

BCS-48

< ECU DIAGNOSIS INFORMATION >

BCM

66

(V)

Ground

Driver door, fuel lid 
UNLOCK

Output

Driver door, fuel 
lid

UNLOCK (Actuator is acti-
vated)

12 V

Other then UNLOCK (Ac-
tuator is not activated)

0 V

67

(B)

Ground

Ground

Output

Ignition switch ON

0 V

68

(Y)

Ground

P/W power supply 
(IGN)

Output

Ignition switch ON

12 V

69

(W)

Ground

P/W power supply 
(BAT)

Output

Ignition switch OFF

12 V

70

(Y)

Ground

Battery power sup-
ply

Input

Ignition switch OFF

Battery voltage

72

(P)

Ground

Puddle lamp control

Output

Puddle lamp

OFF

12 V

ON

0 V

73

(W)

Ground

ON indicator lamp

Output

Ignition switch

OFF (LOCK indicator is 
not illuminated)

Battery voltage

ON

0 V

74

(Y/B)

Ground

Trailer turn signal 
RH control

Output

Ignition switch 
ON

Turn signal switch OFF

Battery voltage

Turn signal switch RH

6.0 - 7.0 V

75

(LG/R)

Ground

Driver door request 
switch

Input

Driver door re-
quest switch

ON (Pressed)

0 V

OFF (Not pressed)

12 V

76

(P/L)

Ground

Passenger door re-
quest switch

Input

Passenger door 
request switch

ON (Pressed)

0 V

OFF (Not pressed)

12 V

77

(O/L)

Ground

Trailer turn signal LH 
control

Output

Ignition switch 
ON

Turn signal switch OFF

Battery voltage

Turn signal switch LH

6.0 - 7.0 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

−

PKIC6370E

PKIC6370E

BCS

BCM

BCS-49

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

78

(P/B)

Ground

Driver door antenna 
(+)

Output

When the driver 
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

79

(V)

Ground

Driver door antenna 
(-)

Output

When the driver 
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

80

(LG/B)

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

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

−

JMKIA3838GB

JMKIA3839GB

JMKIA3838GB

JMKIA3839GB

JMKIA3838GB

JMKIA3839GB