Nissan Titan. Manual - part 494

RF-20

< ECU DIAGNOSIS INFORMATION >

BCM (BODY CONTROL MODULE)

Terminal

Wire 

color

Signal name

Signal 

input/

output

Measuring condition

Reference value or waveform

(Approx.)

Ignition 

switch

Operation or condition

1

BR/W Key ring output

Output

OFF

ON (driver door open)

0V

OFF (driver door closed)

Battery voltage

2

SB

Combination switch in-
put 5

Input

ON

Lighting, turn, wiper OFF
Wiper dial position 4

3

G/Y

Combination switch in-
put 4

Input

ON

Lighting, turn, wiper OFF
Wiper dial position 4

4

Y

Combination switch in-
put 3

Input

ON

Lighting, turn, wiper OFF
Wiper dial position 4

5

G/B

Combination switch in-
put 2

Input

ON

Lighting, turn, wiper OFF
Wiper dial position 4

6

V

Combination switch in-
put 1

9

R/G

Brake switch

Input

ON

Brake pedal depressed

Battery voltage

Brake pedal released

0V

11

O

Ignition switch (ACC or 
ON)

Input

ACC or 

ON

Ignition switch ACC or ON

Battery voltage

12

R/L

Front door switch RH 
(All)

Input

OFF

ON (open)

0V

Rear door switch lower 
RH (King Cab)

Rear door switch up-
per RH (King Cab)

OFF (closed)

Battery voltage

13

GR

Rear door switch RH 
(Crew Cab)

Input

OFF

ON (open)

0V

OFF (closed)

Battery voltage

15

L/W

Tire pressure warning 
check connector

Input

OFF

—

5V

16

SB

MR output

Output

—

—

—

18

P

Remote keyless entry 
receiver and optical 
sensor (ground)

Output

OFF

—

0V

SKIA5291E

SKIA5292E

SKIA5291E

SKIA5292E

BCM (BODY CONTROL MODULE)

RF-21

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

L

M

A

B

RF

N

O

P

19

V/W

Remote keyless entry 
receiver (power sup-
ply)

Output

OFF

Ignition switch OFF

20

G/W

Remote keyless entry 
receiver (signal)

Input

OFF

Stand-by (keyfob buttons re-
leased)

When remote keyless entry re-
ceiver receives signal from 
keyfob (keyfob buttons 
pressed)

21

G

NATS antenna amp.

Input

OFF 

→ 

ON

Ignition switch (OFF 

→ ON)

Just after turning ignition switch 

ON: Pointer of tester should 

move for approx. 1 second, then 

return to battery voltage.

22

G

BUS

—

—

Ignition switch ON or power 
window timer operates

23

G/O

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 for approx. 1 second, then 

return to battery voltage.

27

W/R

Compressor ON signal

Input

ON

A/C switch OFF

5V

A/C switch ON

0V

28

L/R

Front blower monitor

Input

ON

Front blower motor OFF

Battery voltage

Front blower motor ON

0V

29

W/B

Hazard switch

Input

OFF

ON

0V

OFF

5V

31

P/L

Cargo lamp switch

Input

OFF

Cargo lamp switch ON

0

Cargo lamp switch OFF

Battery voltage

Terminal

Wire 

color

Signal name

Signal 

input/

output

Measuring condition

Reference value or waveform

(Approx.)

Ignition 

switch

Operation or condition

LIIA1893E

LIIA1894E

LIIA1895E

PIIA2344E

RF-22

< ECU DIAGNOSIS INFORMATION >

BCM (BODY CONTROL MODULE)

32

R/G

Combination switch 
output 5

Output

ON

Lighting, turn, wiper OFF
Wiper dial position 4

33

R/Y

Combination switch 
output 4

Output

ON

Lighting, turn, wiper OFF
Wiper dial position 4

34

L

Combination switch 
output 3

Output

ON

Lighting, turn, wiper OFF
Wiper dial position 4

35

O/B

Combination switch 
output 2

Output

ON

Lighting, turn, wiper OFF
Wiper dial position 4

36

R/W

Combination switch 
output 1

37

B/R

Key switch and key 
lock solenoid

Input

OFF

Key inserted

Battery voltage

Key removed

0V

38

W/L

Ignition switch (ON) 

Input

ON

—

Battery voltage

39

L

CAN-H

—

—

—

—

40

P

CAN-L

—

—

—

—

41

Y/B

Rear defogger switch

Input

ON

Rear defogger switch ON

0V

Rear defogger switch OFF

5V

47

SB

Front door switch LH 
(All)

Input

OFF

ON (open)

0V

Rear door switch lower 
LH (King Cab)

Rear door switch up-
per LH (King Cab)

OFF (closed)

Battery voltage

48

R/Y

Rear door switch LH 
(Crew Cab)

Input

OFF

ON (open)

0V

OFF (closed)

Battery voltage

50

R/Y

Cargo bed lamp con-
trol

Output

OFF

Cargo lamp switch (ON)

0V

Cargo lamp switch (OFF)

Battery voltage

Terminal

Wire 

color

Signal name

Signal 

input/

output

Measuring condition

Reference value or waveform

(Approx.)

Ignition 

switch

Operation or condition

SKIA5291E

SKIA5292E

SKIA5291E

SKIA5292E

BCM (BODY CONTROL MODULE)

RF-23

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

L

M

A

B

RF

N

O

P

51

Y/B

Trailer turn signal 
(right)

Output

ON

Turn right ON

52

G/B

Trailer turn signal (left)

Output

ON

Turn left ON

56

R/G

Battery saver output

Output

OFF

15 minutes after ignition switch 
is turned OFF

0V

ON

—

Battery voltage

57

Y/R

Battery power supply

Input

OFF

—

Battery voltage

58

W/R

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

G

Front door lock as-
sembly LH actuator 
(unlock)

Output

OFF

OFF (neutral)

0V

ON (unlock)

Battery voltage

60

G/B

Turn signal (left)

Output

ON

Turn left ON

61

G/Y

Turn signal (right)

Output

ON

Turn right ON

62

R/W

Step lamp LH and RH

Output

OFF

ON (any door open)

0V

OFF (all doors closed)

Battery voltage

63

L

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

G/Y

Front door lock actua-
tor RH and rear door 
lock actuators LH/RH 
(unlock)

Output

OFF

OFF (neutral)

0V

ON (unlock)

Battery voltage

Terminal

Wire 

color

Signal name

Signal 

input/

output

Measuring condition

Reference value or waveform

(Approx.)

Ignition 

switch

Operation or condition

SKIA3009J

SKIA3009J

SKIA3009J

SKIA3009J