Power Back Door System: Initialization: Initialization

WARNING: This page is about a different car, the 2011 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

RESET BACK DOOR CLOSE POSITION
NOTE:
Perform initialization of the power back door system (power back door ECU initialization) if one of the following is performed:
1. The cable is disconnected from the negative (-) battery terminal.
2. A wire harness of the power back door system is disconnected and reconnected.
3. The power back door ECU (back door motor unit) is replaced or removed and reinstalled.
4. The ECU-B fuse is replaced or removed and reinstalled.
If initialization is not performed, the power back door system will not operate.
1. When the back door is open and the cable is disconnected and reconnected to the negative (-) battery terminal, fully close the back door by hand to initialize the power back door ECU.
  HINT:
  - Initialization is not necessary if the cable is disconnected and reconnected to the negative (-) battery terminal while the back door is closed.
  - The power back door ECU controls the locked or unlocked state of the back door based on its memory. If the power for the power back door ECU is disconnected and reconnected, the back door will need to be unlocked before it can be operated.
  - If the power back door system does not operate and/or the back door does not open, disconnect the cable from the negative (-) battery terminal. Then wait 10 seconds, reconnect the cable and perform initialization of the power back door system again.