Terminal and Reference Values for BCM
WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
TERMINAL AND REFERENCE VALUES FOR BCM
| Terminals | Wire color | Signal name | Signal input/ output | Measuring condition | Reference value or waveform (Approx.) | ||
|---|---|---|---|---|---|---|---|
| Ignition switch | Operation or condition | ||||||
| 1 | BR | Ignition keyhole illumination | Output | OFF | Door is locked (SW OFF) | Battery voltage | |
| Door is unlocked (SW ON) | 0V | ||||||
| 2 | P | Combination switch input 5 | Input | ON | Lighting, turn, wiper OFF Wiper dial position 4 |
||
| 3 | SB | Combination switch input 4 | Input | ON | Lighting, turn, wiper OFF Wiper dial position 4 |
||
| 4 | V | Combination switch input 3 | Input | ON | Lighting, turn, wiper OFF Wiper dial position 4 |
||
| 5 | L | Combination switch input 2 | Input | ON | Lighting, turn, wiper OFF Wiper dial position 4 |
||
| 6 | R | Combination switch input 1 | |||||
| 9 | Y | Rear window defogger switch | Input | ON | Rear window defogger switch ON | 0V | |
| Rear window defogger switch OFF | 5V | ||||||
| 11 | G/B | Ignition switch (ACC or ON) | Input | ACC or ON | Ignition switch ACC or ON | Battery voltage | |
| 12 | LG | Front door switch RH | Input | OFF | ON (open) | 0V | |
| OFF (closed) | Battery voltage | ||||||
| 13 | L | Rear door switch RH | Input | OFF | ON (open) | 0V | |
| OFF (closed) | Battery voltage | ||||||
| 15 | W | Tire pressure warning check connector | Input | OFF | - | 5V | |
| 18 | BR | Remote keyless entry receiver and optical sensor (ground) | Output | OFF | - | 0V | |
| 19 | V | Remote keyless entry receiver (power supply) | Output | OFF | Ignition switch OFF | ||
| 20 | G | Remote keyless entry receiver signal (Signal) | Input | OFF | Stand-by (keyfob buttons released) | ||
| When remote keyless entry receiver receives signal from keyfob (keyfob buttons pressed) | |||||||
| 21 | GR | 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 | V | BUS | - | - | Ignition switch ON or power window timer operates | ||
| 23 | G | Security indicator lamp | Output | OFF | Goes OFF → illuminates (Every 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 | Compressor ON signal | Input | ON | A/C switch OFF | 5V | |
| A/C switch ON | 0V | ||||||
| 28 | R | Front blower monitor | Input | ON | Front blower motor OFF | Battery voltage | |
| Front blower motor ON | 0V | ||||||
| 29 | G | Hazard switch | Input | OFF | ON | 0V | |
| OFF | 5V | ||||||
| 32 | O | Combination switch output 5 | Output | ON | Lighting, turn, wiper OFF Wiper dial position 4 |
||
| 33 | GR | Combination switch output 4 | Output | ON | Lighting, turn, wiper OFF Wiper dial position 4 |
||
| 34 | G | Combination switch output 3 | Output | ON | Lighting, turn, wiper OFF Wiper dial position 4 |
||
| 35 | BR | Combination switch output 2 | Output | ON | Lighting, turn, wiper OFF Wiper dial position 4 |
||
| 36 | LG | Combination switch output 1 | |||||
| 37 | B | Key switch | Input | OFF | Key inserted | Battery voltage | |
| Key removed | 0V | ||||||
| 38 | W/R | Ignition switch (ON) | Input | ON | - | Battery voltage | |
| 39 | L | CAN-H | - | - | - | - | |
| 40 | P | CAN-L | - | - | - | - | |
| 42 | LG | Glass hatch ajar switch | Input | ON | Glass hatch open | 0 | |
| Glass hatch closed | Battery | ||||||
| 43 | Y | Back door switch | Input | OFF | ON (open) | 0V | |
| OFF (closed) | Battery voltage | ||||||
| 44 | O | Rear wiper auto stop switch | Input | ON | Rise up position (rear wiper arm on stopper) | 0V | |
| A Position (full clockwise stop position) | Battery voltage | ||||||
| Forward sweep (counterclockwise direction) | Fluctuating | ||||||
| B Position (full counterclockwise stop position) | 0V | ||||||
| Reverse sweep (clockwise direction) | Fluctuating | ||||||
| 47 | GR | Front door switch LH | Input | OFF | ON (open) | 0V | |
| OFF (closed) | Battery voltage | ||||||
| 48 | P | Rear door switch LH | Input | OFF | ON (open) | 0V | |
| OFF (closed) | Battery voltage | ||||||
| 49 | L | Cargo lamp | Output | OFF | Any door open (ON) | 0V | |
| All doors closed (OFF) | Battery voltage | ||||||
| 51 | G | Trailer turn signal (right) | Output | ON | Turn right ON | ||
| 52 | V | Trailer turn signal (left) | Output | ON | Turn left ON | ||
| 55 | W | Rear wiper output circuit | Output | ON | OFF | 0 | |
| ON | Battery voltage | ||||||
| 56 | V | Battery saver output | Output | OFF | 30 minutes after ignition switch is turned OFF | 0V | |
| ON | - | Battery voltage | |||||
| 57 | R/Y | Battery power supply | Input | OFF | - | Battery voltage | |
| 58 | W | Optical sensor | Input | ON | When optical sensor is illuminated | 3.1V or more | |
| When optical sensor is not illuminated | 0.6V or less | ||||||
| 59 | GR | Front door lock assembly LH actuator (unlock) | Output | OFF | OFF (neutral) | 0V | |
| ON (unlock) | Battery voltage | ||||||
| 60 | LG | Turn signal LH | Output | ON | Turn left ON | ||
| 61 | G | Turn signal RH | Output | ON | Turn right ON | ||
| 63 | BR | Interior room/map lamp | Output | OFF | Any door switch | ON (open) | 0V |
| OFF (closed) | Battery voltage | ||||||
| 65 | V | All door lock actuators (lock) | Output | OFF | OFF (neutral) | 0V | |
| ON (lock) | Battery voltage | ||||||
| 66 | L | Front door lock actuator RH, rear door lock actuators LH/RH and back door lock actuator (unlock) | Output | OFF | OFF (neutral) | 0V | |
| ON (unlock) | Battery voltage | ||||||
| 67 | B | Ground | Input | ON | - | 0V | |
| 68 | O | 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 | 0V | ||||||
| When front door LH or RH is open or power window timer operates | 0V | ||||||
| 69 | L | Power window power supply | Output | - | - | Battery voltage | |
| 70 | W | Battery power supply | Input | OFF | - | Battery voltage | |