Nissan Frontier D40. Manual — part 227

BCM (BODY CONTROL MODULE)

DLK-71

< ECU DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

13

L

Rear door switch RH
(Crew Cab)

Input

OFF

ON (open)

0V

OFF (closed)

Battery voltage

15

W

Tire pressure warning
check connector

Input

OFF

—

5V

18

BR

Remote keyless entry
receiver (Ground)

Output

OFF

—

0V

19

V

Remote keyless entry
receiver (power sup-
ply)

Output

OFF

Ignition switch OFF

20

G

Remote keyless entry
receiver signal (Sig-
nal)

Input

OFF

Stand-by (keyfob buttons re-
leased)

When remote keyless entry
receiver receives signal from
keyfob (keyfob buttons
pressed)

21

GR

NATS antenna amp.

Input

OFF

→

ON

Ignition switch (OFF

→

ON)

Just after turning ignition switch

ON: Pointer of tester should

move.

23

G

Security indicator
lamp

Output

OFF

Goes OFF

→

illuminates (Ev-

ery 2.4 seconds)

Battery voltage

→

0V

25

BR

NATS antenna amp.

Input

OFF

→

ON

Ignition switch (OFF

→

ON)

Just after turning ignition switch

ON: Pointer of tester should

move.

27

W

Compressor ON sig-
nal

Input

ON

A/C switch OFF

5V

A/C switch ON

0V

28

R

Front blower monitor

Input

ON

Front blower motor OFF

Battery voltage

Front blower motor ON

0V

29

G

Hazard switch

Input

OFF

ON

0V

OFF

5V

31

GR

Cargo lamp switch

Input

OFF

ON

0V

OFF

Battery voltage

Terminal

Wire

color

Item

Signal

input/

output

Measuring condition

Reference value or waveform

(Approx.)

Ignition

switch

Operation or condition

LIIA1893E

LIIA1894E

LIIA1895E

DLK-72

< ECU DIAGNOSIS >

BCM (BODY CONTROL MODULE)

32

O

Combination switch
output 5

Output

ON

Lighting, turn, wiper OFF
Wiper dial position 4

33

GR

Combination switch
output 4

Output

ON

Lighting, turn, wiper OFF
Wiper dial position 4

34

G

Combination switch
output 3

Output

ON

Lighting, turn, wiper OFF
Wiper dial position 4

35

BR

Combination switch
output 2

Output

ON

Lighting, turn, wiper OFF
Wiper dial position 4

36

LG

Combination switch
output 1

37

B

Key switch

Input

OFF

Key inserted

Battery voltage

Key removed

0V

38

W/R

Ignition switch (ON)

Input

ON

—

Battery voltage

39

L

CAN-H

—

—

—

—

40

P

CAN-L

—

—

—

—

45

V

Lock switch

Input

OFF

ON (lock)

0V

OFF

Battery voltage

46

LG

Unlock switch

Input

OFF

ON (unlock)

0V

OFF

Battery voltage

47

GR

Front door switch LH
(All)

Input

OFF

ON (open)

0V

Rear door switch up-
per LH (King Cab)

OFF (closed)

Battery voltage

Rear door switch low-
er LH (King Cab)

48

P

Rear door switch LH
(Crew Cab)

Input

OFF

ON (open)

0V

OFF (closed)

Battery voltage

50

P

Cargo lamp

Output

OFF

Any door open (ON)

0V

All doors closed (OFF)

Battery voltage

Terminal

Wire

color

Item

Signal

input/

output

Measuring condition

Reference value or waveform

(Approx.)

Ignition

switch

Operation or condition

SKIA5291E

SKIA5292E

SKIA5291E

SKIA5292E

BCM (BODY CONTROL MODULE)

DLK-73

< ECU DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

51

O

Trailer turn signal
(right)

Output

ON

Turn right ON

52

LG

Trailer turn signal (left)

Output

ON

Turn left ON

56

R/Y

Battery saver output

Output

OFF

30 minutes after ignition
switch is turned OFF

0V

ON

—

Battery voltage

57

R/Y

Battery power supply

Input

—

—

Battery voltage

58

W

Optical sensor

Input

ON

When optical sensor is illumi-
nated

3.1V or more

When optical sensor is not illu-
minated

0.6V or less

59

GR

Front door lock as-
sembly LH (unlock)

Output

OFF

OFF (neutral)

0V

ON (unlock)

Battery voltage

60

LG

Turn signal (left)

Output

ON

Turn left ON

61

G

Turn signal (right)

Output

ON

Turn right ON

63

BR

Interior room/map
lamp

Output

OFF

Any door
switch

ON (open)

0V

OFF (closed)

Battery voltage

65

V

All door lock actuators
(lock)

Output

OFF

OFF (neutral)

0V

ON (lock)

Battery voltage

66

L

Front door lock actua-
tor RH, rear door lock
actuators LH/RH (un-
lock)

Output

OFF

OFF (neutral)

0V

ON (unlock)

Battery voltage

67

B

Ground

Input

ON

—

0V

Terminal

Wire

color

Item

Signal

input/

output

Measuring condition

Reference value or waveform

(Approx.)

Ignition

switch

Operation or condition

SKIA3009J

SKIA3009J

SKIA3009J

SKIA3009J

DLK-74

< ECU DIAGNOSIS >

BCM (BODY CONTROL MODULE)

1: King cab (with power door lock system)

2: Crew cab (with power door lock system)

68

1

O

Power window power
supply (RAP)

Output

—

Ignition switch ON

Battery voltage

Within 45 seconds after igni-
tion switch OFF

Battery voltage

More than 45 seconds after ig-
nition switch OFF

0V

When front door LH or RH is
open or power window timer
operates

0V

68

2

SB

Power window power
supply (RAP)

Output

—

Ignition switch ON

Battery voltage

Within 45 seconds after igni-
tion switch OFF

Battery voltage

More than 45 seconds after ig-
nition switch OFF

0V

When front door LH or RH is
open or power window timer
operates

0V

69

P

Power window power
supply (BAT)

Output

OFF

—

Battery voltage

70

W

Battery power supply

Input

OFF

—

Battery voltage

Terminal

Wire

color

Item

Signal

input/

output

Measuring condition

Reference value or waveform

(Approx.)

Ignition

switch

Operation or condition