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Home >> Lexus >> 2003 >> LS 430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 485 (Back Door Power Window Control System - Diagnostics) >> Manual Up/Down Function Via Back Door Lock Key Cylinder Does Not Operate >> Inspection Procedure
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Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK BACK DOOR POWER WINDOW OPERATION 
    1. Check that the back door power window operates via the back door power window switch.

    NG: OTHER PROBLEM (See  MANUAL UP/DOWN FUNCTION DOES NOT OPERATE  ) 

    OK: Go To Next Step 

  2. INSPECT TAIL GATE CONTROL SWITCH ASSY (BACK DOOR LOCK KEY CYLINDER) 
    1. Disconnect the switch connector.
    2. Insert the key into the key cylinder.
    3. Check the continuity between the terminals of the switch connector when turning the key.
    Fig 1: Inspecting Tail Gate Control Switch Assy (Back Door Lock Key Cylinder)
    G02835364Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    STANDARD

    Terminal No. Operation Specified Condition
    1 <=> 3 Turn key to right Continuity
    1 <=> 2 No operation No continuity
    2 <=> 3 Turn key to left Continuity

    NG: REPLACE TAIL GATE CONTROL SWITCH ASSY 

    OK: REPAIR OR REPLACE HARNESS AND CONNECTOR (BACK DOOR ECU <=> SWITCH)