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Inspection Procedure

WARNING: This page is about a different car, the 2005 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check PNP signals using hand-held tester. 

    PREPARATION: 

    Connect the hand-held tester to DLC3.

    1. Connect the hand-held tester to DLC3.
    2. Turn the ignition switch ON and push the hand-held tester main SW ON.

    CHECK: 

    Select the item "NSW SW" in the DATA LIST and read its valve displayed.

    OK: 

    1. PNP switch position N: ON 
    2. PNP switch position except N: OFF 
    1. OK: Proceed to next circuit inspection shown on problem symptoms table (See  PROBLEM SYMPTOMS TABLE   ). 
    2. NG: Repair or replace harness and connector between park/neutral position switch and wiper control ECU (See  PROCEDURE  ).