Pre-Check
PRE-CHECKPOWER DOOR LOCK SYSTEM DESCRIPTION
a. The power door lock system locks/unlocks all the doors at once.
The master switch and the door control switch on the passenger door send "lock/unlock" request signals to the body ECU. Then, the body ECU sends these requests to the lock motors in each door to lock/unlock all the doors at once in response to the inputs. (The BEAN is used when the master switch sends request signals to the body ECU.)
Operating the driver's door lock using a key sends request signals to lock/unlock the doors to the body ECU via the master switch. "2-step unlock function" is optional for unlocking procedures of the key-linked lock for the driver side door. Please refer to the chart shown in step b. for details of this function.
b. The power door lock control system in the '04 RX330 has functions as shown.