Terminals and Reference Values for BCM
WARNING: This page is about a different car, the 2005 Nissan Frontier. 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 | ||||||||
| 1(1) | BR | Ignition keyhole illumination signal | OFF | Door is locked. (SW OFF) | Battery voltage | ||||
| Door is unlocked. (SW ON) | 0V | ||||||||
| 7(1) | GR | LH key cylinder switch unlock signal | OFF | LH key cylinder switch | ON (open, 2nd turn) | Momentary 1.5V | |||
| OFF (closed) | 0V | ||||||||
| 8(1) | SB | LH key cylinder switch lock signal | ON (open) | Momentary 1.5V | |||||
| OFF (closed) | 0V | ||||||||
| 12(1) | LG | Front door switch RH signal | OFF | Front door switch RH | ON (open) | 0V | |||
| OFF (closed) | Battery voltage | ||||||||
| 13(1) | L | Rear door switch RH signal | OFF | Rear door switch RH | ON (open) | 0V | |||
| OFF (closed) | Battery voltage | ||||||||
| 31 | GR | Cargo lamp switch signal | OFF | Cargo lamp switch | ON | 0V | |||
| OFF | Battery voltage | ||||||||
| 37 | B | Key-in switch detection signal | OFF | Vehicle key is removed. | 0V | ||||
| Vehicle key is inserted. | Battery voltage | ||||||||
| 38 | W/R | Ignition power supply | ON | - | Battery voltage | ||||
| 39 | L | CAN-H | - | - | - | ||||
| 40 | P | CAN-L | - | - | - | ||||
| 45(1) | V | CDL lock switch signal | OFF | LH or RH door lock/unlock switch | ON (lock) | Momentary 1.5V | |||
| OFF | 0V | ||||||||
| 46(1) | LG | CDL unlock switch signal | OFF | LH or RH door lock/unlock switch | ON (unlock) | Momentary 1.5V | |||
| OFF | 0V | ||||||||
| 47(1) | GR | Front door switch LH signal | OFF | Front door switch LH | ON (open) | 0V | |||
| OFF (closed) | Battery voltage | ||||||||
| 48(1) | P | Rear door switch LH signal | OFF | Rear door switch LH | ON (open) | 0V | |||
| OFF (closed) | Battery voltage | ||||||||
| 50 | P | Cargo lamp output | OFF | Cargo lamp switch ON | 0V | ||||
| Cargo lamp switch OFF | Battery voltage | ||||||||
| 56(1) | V | Battery saver output signal | OFF | 30 minutes after ignition switch is turned to OFF | 0V | ||||
| ON | - | Battery voltage | |||||||
| 57 | R/Y | Battery power supply | OFF | - | Battery voltage | ||||
| 63(1) | BR | Interior room/map lamp signal | OFF | Each interior lamp switch: DOOR position | Any door switch | ON (open) | 0V | ||
| OFF (closed) | Battery voltage | ||||||||
| 67 | B | Ground | ON | - | 0V | ||||
| 70 | W | Battery power supply | OFF | - | Battery voltage | ||||
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