Terminals and Reference Values for BCM

WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

BCM REFERENCE CHART

Terminal

Wire color

Signal name

Signal input/output

Measuring condition

Reference value or waveform (Approx.)

Ignition switch

Operation or condition

Y/G

Ignition keyhole illumination

Output

OFF

Door is locked (SW OFF)

Battery voltage

Door is unlocked (SW ON)

Combination switch input 5

Input

Lighting, turn, wiper OFF Wiper dial position 4

Courtesy of NISSAN MOTOR CO., U.S.A.

R/Y

Combination switch input 4

Input

Lighting, turn, wiper OFF Wiper dial position 4

Courtesy of NISSAN MOTOR CO., U.S.A.

R/G

Combination switch input 3

Input

Lighting, turn, wiper OFF Wiper dial position 4

Courtesy of NISSAN MOTOR CO., U.S.A.

R/B

Combination switch input 2

Input

Lighting, turn, wiper OFF Wiper dial position 4

Courtesy of NISSAN MOTOR CO., U.S.A.

BR/R

Combination switch input 1

Rear window defogger switch

Input

Rear window defogger switch ON

Rear window defogger switch OFF

Ignition switch (ACC or ON)

Input

ACC or ON

Ignition switch ACC or ON

Battery voltage

BR/W

Front door switch RH

Input

OFF

ON (open)

OFF (closed)

Battery voltage

L/R

Rear door switch RH

Input

OFF

ON (open)

OFF (closed)

Battery voltage

L/Y

Optical sensor

Input

When optical sensor is illuminated

3.1V or more⁽¹⁾

When optical sensor is not illuminated

0.6V or less

L/W

Tire pressure warning check connector

Input

OFF

W/R

Optical sensor (power supply)

Output

Sensor ground

Output

V/W

Remote keyless entry receiver (power sup-ply)

Output

OFF

Ignition switch OFF

Courtesy of NISSAN MOTOR CO., U.S.A.

Y/G

Remote keyless entry receiver signal (Signal)

Input

Stand-by

Courtesy of NISSAN MOTOR CO., U.S.A.

Signal received

Courtesy of NISSAN MOTOR CO., U.S.A.

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.

BUS

Ignition switch ON or power window timer operates

Courtesy of NISSAN MOTOR CO., U.S.A.

G/O

Security indicator lamp

Output

OFF

Goes OFF → illuminates
(Every 2.4 seconds)

Battery voltage → 0V

Y/B

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.

O/L

Compressor ON signal

Input

A/C switch OFF

A/C switch ON

W/B

Front blower monitor

Input

Front blower motor OFF

Battery voltage

Front blower motor ON

G/R

Hazard switch

Input

OFF

Trunk lid opener switch

Input

OFF

OFF → ON

Battery voltage → 0V

Combination switch output 5

Output

Lighting, turn, wiper OFF Wiper dial position 4

Courtesy of NISSAN MOTOR CO., U.S.A.

G/Y

Combination switch output 4

Output

Lighting, turn, wiper OFF Wiper dial position 4

Courtesy of NISSAN MOTOR CO., U.S.A.

L/B

Combination switch output 3

Output

Lighting, turn, wiper OFF Wiper dial position 4

Courtesy of NISSAN MOTOR CO., U.S.A.

G/B

Combination switch output 2

Output

Lighting, turn, wiper OFF Wiper dial position 4

Courtesy of NISSAN MOTOR CO., U.S.A.

G/W

Combination switch output 1

R/B

Key switch

Input

OFF

Key inserted

Battery voltage

Key removed

R/W

Ignition switch (ON or START)

Input

ON or START

Battery voltage

CAN-H

CAN-L

V/W

Trunk lamp switch and trunk release solenoid

Input

OFF

ON (open)

OFF (closed)

Battery voltage

Front door switch LH

Input

OFF

ON (open)

OFF (closed)

Battery voltage

R/B

Rear door switch LH

Input

OFF

ON (open)

OFF (closed)

Battery voltage

Trunk room lamp

Output

OFF

Any door open (ON)

All doors closed (OFF)

Battery voltage

Trunk opener output

Output

OFF

When trunk lid opener release solenoid is operated (ON → OFF)

0V → Battery voltage

R/G

Battery saver output

Output

OFF

30 minutes after ignition switch is turned OFF

Battery voltage

Y/B

Battery power supply

Input

OFF

Battery voltage

Front door lock assembly LH actuator (unlock)

Output

OFF

OFF (neutral)

ON (unlock)

Battery voltage

G/B

Flasher output (left)

Output

Turn left ON

Courtesy of NISSAN MOTOR CO., U.S.A.

G/Y

Flasher output (right)

Output

Turn right ON

Courtesy of NISSAN MOTOR CO., U.S.A.

R/W

Step lamp LH and RH

Output

OFF

ON (any door open)

OFF (all doors closed)

Battery voltage

Interior room/map lamp

Output

OFF

Any door switch

ON (open)

OFF (closed)

Battery voltage

All door lock actuators (lock)

Output

OFF

OFF (neutral)

ON (lock)

Battery voltage

G/Y

Front door lock actuator RH, rear door lock actuators LH/RH (unlock)

Output

OFF

OFF (neutral)

ON (unlock)

Battery voltage

Ground

Input

W/L

Power window power supply (RAP)

Output

Ignition switch ON

Battery voltage

Within 45 seconds after ignition switch OFF

Battery voltage

More than 45 seconds after ignition switch OFF

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

W/R

Power window power supply

Output

Battery voltage

W/B

Battery power supply

Input

OFF

Battery voltage

NOTE:

⁽¹⁾	Optical sensor must be completely subjected to work lamp light. If the optical sensor is insufficiently illuminated, the measured value may not satisfy standard.