Terminals and Reference Values for BCM

WARNING: This page is about a different car, the 2006 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

BCM TERMINALS AND REFERENCE VALUES

Terminal No.

Wire color

Signal name

Measuring condition

Reference value (Approx.)

Ignition switch

Operation or condition

12⁽¹⁾

R/L

Front door switch RH signal

OFF

Front door switch RH

ON (open)

OFF (closed)

Battery voltage

12⁽²⁾

R/L

Door switch RH signal

OFF

Door switch RH

ON (open)

OFF (closed)

Battery voltage

13⁽¹⁾

Rear door switch RH signal

OFF

Rear door switch RH

ON (open)

OFF (closed)

Battery voltage

Bus

P/L

Cargo lamp switch signal

OFF

Cargo lamp switch ON.

Cargo lamp switch OFF.

Battery voltage

B/R

Key-in switch detection signal

OFF

Vehicle key is removed.

Vehicle key is inserted.

Battery voltage

W/L

Ignition power supply

Battery voltage

CAN-H

CAN-L

47⁽¹⁾

Front door switch LH signal

OFF

Front door switch LH

ON (open)

OFF (closed)

Battery voltage

47⁽²⁾

Door switch LH signal

OFF

Door switch LH

ON (open)

OFF (closed)

Battery voltage

48⁽¹⁾

R/Y

Rear door switch LH signal

OFF

Rear door switch LH

ON (open)

OFF (closed)

Battery voltage

R/Y

Cargo bedlamp control

OFF

Cargo lamp switch ON

Cargo lamp switch OFF

Battery voltage

R/G

Battery saver output signal

OFF

30 minutes after ignition switch is turned to OFF

Battery voltage

Y/R

Battery power supply

OFF

Battery voltage

R/W

Step lamp signal

OFF

Any door is open (ON)

All doors are closed (OFF)

Battery voltage

Interior room/map lamp signal

OFF

Each interior lamp switch in DOOR position

Any door switch

ON (open)

OFF (closed)

Battery voltage

Ground

W/B

Battery power supply

OFF

Battery voltage

⁽¹⁾

Crew cab

⁽²⁾

King cab