
BCM Device
BCM Device 88
1. Remote Control or Mechanism Key Lock
When defended, whether horn tweets is achieving by configuration, default not tweet.
When in undefended state, after BCM receiving valid remote control lock signal or driver’s side mechanism key lock signal,
if five doors and engine hood cover are all closed, four door are lock, two side turning lights twinkle once, twinkle period is 1s, in
which 0.5s on, 0.5s off, horn tweets 10ms. If BCM receiving remote control unlock order in twinkling period, light twinkling turns
into unlock twinkling procedure; if any other door is not closed after driver’s side door closed, lock motor works, turning light not
twinkles. After all doors are closed, perform confirmed action again (if there is key inserting, left front door open or central control
unlock/lock, cancel performing confirmed action again), namely two side turning light twinkle once, twinkle period is 1s, in which
0.5s on, 0.5s off, and horn tweets 10ms.
When in defended state, after BCM receiving valid remote control lock signal, BCM still carry out lock action, and perform
confirmed action, namely lock motor works, two side turning lights twinkle once, twinkle period is 1s, in which 0.5s on, 0.5s off,
and horn tweets 10ms.
2. Remote Control or Mechanism Key Unlock
When defended, after BCM receiving valid remote control unlock signal or driver’s side mechanism key unlock signal, four
doors unlock, BCM is undefended and perform confirmed action, namely two side turning lights twinkle twice and then off. Each
twinkle period is 1s, in which 0.5s on, 0.5s off, and horn tweets 10ms.
When undefended, after BCM receiving valid remote control unlock signal or driver’s side mechanism key unlock signal,
BCM is undefended and perform confirmed action, namely two side turning lights twinkle twice and then off.
In undefended state, after BCM receiving valid remote control unlock signal or driver’s side mechanism key unlock signal,
BCM unlock, two side turning light correspondingly twinkle twice.
3. Automatic Lock Function
When vehicle speed up to presetting value n (there are 40kn/h and 15km/h in EEPROM, default value is 15km/h, realized by
configuration), if driver’s side lock motor is unlock, when driver’s door is closed, BCM will automatically lock vehicle door.
4. Re-defended Function
If there is not 5 doors and engine hood cover opening or key inserted ignition switch, then try to lock by remote control (Please
refer to remote control lock).
5. Remote Control Tail Door Unlock
After receiving remote control tail door open signal in defended state, relieve defended state; after receiving tail door unlock
signal in 30s, carry out 500ms open tail door motor; When not open rear tail door over 30s or open rear tail door and then close
rear tail door, get into defended state again, and can’t unlock through tail door unlock signal.
In undefended state, if driver’s side door lock is locked, after receiving remote control opening tail door signal, receiving tail
door unlock signal in 30s, carry out 500ms open tail door motor; When not open rear tail door over 30s or open rear tail door and
then close rear tail door, get into defended state again, and can’t unlock through tail door unlock signal.
In undefended state, if driver’s side door lock is locked, after receiving remote control opening tail door signal, carry out
500ms opening tail door motor. Remote control opening tail door signal is prior to judgment of driver’s side door lock state.
6. Central Control Unlock/Lock Function
When in defended state or warning state, central control unlock/lock is invalid.
Central control switch control lock:
After BCM receiving central control lock switch signal in undefended state, if five doors and engine hood all are closed, then
lock four doors; if driver’s door is not closed, lock motor doesn’t work; if other doors or engine hood cover is not closed, lock
motor works. If lock motor is already in lock state, after BCM receiving central control lock switch signal, lock motor locks again.
Central control switch control unlock:
After BCM receiving central control unlock switch signal in undefended state, four doors motor unlock. If four doors are in
unlock state, after BCM receiving central control unlock switch signal, lock motor unlock again.
7. Pulling Key Unlock Function
After key pulled out from ignition switch, BCM drive door lock motor to unlock four doors.
8. Collision Force Unlock Function
When ignition switch is in “ON”, after BCM receiving valid collision signal, BCM forces to open four door lock; shield central
control unlock function and remote control unlock function.
When BCM detecting ignition switch changing from “ON” to “OFF” to “ON”, recover automatic lock function, central control
lock function and remote control lock function and mechanism key lock function (collision is prior).