Home › Vehicle Exterior › Door/Hatch › POWER BACK DOOR SYSTEM
Last Modified: 11-27-2007 1.6 C
Service Category: Vehicle Exterior Section: Door/Hatch
Model Year: 2008 Model: LX570 Doc ID: RM000003EC4000X
Title: DOOR / HATCH: POWER BACK DOOR SYSTEM: DESCRIPTION (2008 LX570)

DTC

B2222

PBD Pulse Sensor Malfunction

DESCRIPTION

  • A pulse sensor is built into the power back door unit to detect foreign objects and the back door position. The pulse sensor monitors the operating speed of the back door while the power back door is in operation to detect foreign objects. The pulse sensor also monitors where the back door is to detect the back door position. If a pulse signal that is out of the normal range is output, the power back door unit (power back door ECU) will store DTC B2222.
  • If DTC B2222 is store, the power back door system will be turned off. Thus, the back door will be switched to manual operation mode (not electrically controlled) and can be moved freely.
  • In order to restore the power back door system to normal operation mode, first solve the problem indicated by DTC B2222 and then manually close the back door fully (reset operation).

DTC Code

DTC Detection Condition

Trouble Area

B2222

The power back door unit does not operate.

Power back door unit

INSPECTION PROCEDURE

PROCEDURE

1.

CHECK DTC OUTPUT

(a) Clear the DTCs DOOR / HATCH: POWER BACK DOOR SYSTEM: DTC CHECK / CLEAR (2008 LX570) .

(b) Check for DTCs DOOR / HATCH: POWER BACK DOOR SYSTEM: DTC CHECK / CLEAR (2008 LX570) .

OK:

DTC B2222 is not output.

OK