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Home >> Lexus >> 2003 >> LS 430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 423 (Back Door Power Window Control System - Diagnostics) >> DTC B2221 Jam Protection Pulse Sensor Circuit On Back Door >> Inspection Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Inspection Procedure

WARNING: This page is about a different car, the 2003 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
  1. Reset Power Window Regulator Motor 
    1. Turn the ignition switch ON.
    2. Open the back door glass.
    3. Push down the back door power window switch until the door glass is fully closed, and hold the switch 1 second more even after the door glass is fully closed.
    4. Check that the AUTO UP/DOWN function operates completely.
    1. OK : END 
    2. NG : Go To Next Step. 
  2. Check Harness And Connector (Back Door ECU >--< Power Window Motor) 
    1. Disconnect the B9 back door ECU connector.
    2. Disconnect the B11 back door power window motor connector.
    3. Check the continuity between wire harness side connectors.
      Fig 1: Identifying Power Window Regulator & ECU Terminals
      G02815556Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      Fig 2: Power Window Regulator & ECU Specifications
      G02815555Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK : Replace Power Window Regulator Motor Assy LH 
    2. NG : Repair Or Replace Harness And Connector 
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