Terminals And Reference Value For BCM
WARNING: This page is about a different car, the 2003 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.
TERMINALS AND REFERENCE VALUE FOR BCM
| Terminal No. | Wire color | Item | Measuring condition | Reference value | ||
|---|---|---|---|---|---|---|
| Ignition switch | Operation or condition | |||||
| 3 | R/L | Tail lamp signal | ON | Lighting switch: 1ST | ON | Battery voltage |
| OFF | Less than 1V | |||||
| 5 | W/PU | Headlamp relay control signal | ON | Lighting switch: AUTO | Light is applied to optical sensor. | Battery voltage |
| Light is not applied to optical sensor. | Less than 1V | |||||
| 11 | LG/B | Tail lamp relay control signal | ON | Light switch: AUTO | Light is applied to optical sensor. | Battery voltage |
| Light is not applied to optical sensor. | Less than 1V | |||||
| 14 | Y/L | Lighting switch AUTO signal | ON | Lighting switch | AUTO | Less than 1V |
| OFF | 8V | |||||
| 17 | BR/Y | Data link RX | - | - | - | |
| 18 | P | Data link TX | - | - | - | |
| 30 | PU | Communication signal TX (BCM-AV: Transmission) | - | - | - | |
| 31 | LG | Communication signal RX (AV-BCM: Receiving) | - | - | - | |
| 37 | LG | Front door switch (Passenger side) signal | OFF | Front door switch (Passenger side) | ON (open) | Less than 1V |
| OFF (close) | Battery voltage | |||||
| 52 | G/R | Optical sensor signal | ON | Light is applied to optical sensor. | 3V | |
| Light is not applied to optical sensor. | Less than 1V | |||||
| 56 | B | Ground | - | - | 0V | |
| 58 | Y/B | Optical sensor ground | ON | - | Less than 1V | |
| 59 | SB | Optical sensor power supply | ON | - | 5V | |
| 60 | L/OR | Ignition switch | ACC | - | Battery voltage | |
| 68 | W/B | Ignition switch ON or START | ON | - | Battery voltage | |
| 105 | Y/L | Battery power supply | OFF | - | Battery voltage | |
| 113 | B | Ground | - | - | 0V | |
| 135 | Y/G | RAP output signal | OFF | When headlamp battery saver timer is operated. | Less than 1V | |
| 142 | R/Y | Front door switch (Driver side) signal | OFF | Front door switch (Driver side) signal | ON (open) | Less than 1V |
| OFF (close) | Battery voltage | |||||