Nissan Titan. Manual — part 665
BCM (BODY CONTROL MODULE)
WT-25
< ECU DIAGNOSIS INFORMATION >
C
D
F
G
H
I
J
K
L
M
A
B
WT
N
O
P
KEYLESS PANIC
PANIC button of key fob is not pressed
Off
PANIC button of key fob is pressed
On
KEYLESS UNLOCK
UNLOCK button of key fob is not pressed
Off
UNLOCK button of key fob is pressed
On
LIGHT SW 1ST
Lighting switch OFF
Off
Lighting switch 1st
On
OIL PRESS SW
• Ignition switch OFF or ACC
• Engine running
Off
Ignition switch ON
On
OPTICAL SENSOR
Bright outside of the vehicle
Close to 5V
Dark outside of the vehicle
Close to 0V
PASSING SW
Other than lighting switch PASS
Off
Lighting switch PASS
On
REAR DEF SW
Rear window defogger switch OFF
Off
Rear window defogger switch ON
On
TURN SIGNAL L
Turn signal switch OFF
Off
Turn signal switch LH
On
TURN SIGNAL R
Turn signal switch OFF
Off
Turn signal switch RH
On
VEHICLE SPEED
While driving
Equivalent to speedometer reading
WARNING LAMP
Low tire pressure warning lamp in combination meter OFF
Off
Low tire pressure warning lamp in combination meter ON
On
Monitor Item
Condition
Value/Status
WT-26
< ECU DIAGNOSIS INFORMATION >
BCM (BODY CONTROL MODULE)
Terminal Layout
INFOID:0000000009885656
Physical Values
INFOID:0000000009885657
LIIA2443E
BCM (BODY CONTROL MODULE)
WT-27
< ECU DIAGNOSIS INFORMATION >
C
D
F
G
H
I
J
K
L
M
A
B
WT
N
O
P
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
WT-28
< ECU DIAGNOSIS INFORMATION >
BCM (BODY CONTROL MODULE)
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
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