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Inspection Procedure

  1. Check pattern select switch. 

    PREPARATION: 

    Disconnect the pattern select switch connector.

    CHECK: 

    Check continuity between each terminal of pattern select switch connector when the select switch is set to PWR, NORM and SNOW positions.

    OK: 

    Fig 1: Continuity Condition Chart
    G01484405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Checking Continuity
    G01484406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    If the continuity is not as specified, replace the switch.

    1. NG: Replace pattern select switch. 
    2. OK: Go to Next Step 
  2. Check harness and connector between pattern select switch and body ECU No.1, pattern select switch and body ground (See  O/D DIRECT CLUTCH SPEED SENSOR  ). 
    1. NG: Repair or replace the harness or connector. 
    2. OK: Go to next step. 

      Proceed to next circuit inspection shown on problem symptoms table (See  PROBLEM SYMPTOMS TABLE  )