DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Heated Glass/Defoggers >> Window Defogger System - Diagnostics & Symptom Tests >> Window Defogger System >> Data List / Active Test [11/2023 - ] >> Data List / Active Test [11/2023 - ]

Data List / Active Test [11/2023 - ]

  1. DATA LIST 
    NOTE:

    In the following table, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

    HINT: 

    Using the GTS to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

    1. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Rear Defogger Input Signal Window defogger switch signal input condition OFF or ON OFF: Window defogger switch is off
      ON: Window defogger switch is on
      -
      Rear Defogger Output Signal Window defogger output condition OFF or ON OFF: Window defogger does not operate
      ON: Window defogger operates
      -
      Rear Defogger Output Current Window defogger current Min.: 0, Max.: 255 A Current window defogger current displayed Window defogger current when output is on
      Rear Defogger Fuse Shut Off Status Window defogger fuse condition OFF or ON OFF: Fuse shut off
      ON: Fuse not shut off
      -
      Rear Defogger Fuse Shut Off Count Window defogger fuse shut off times Min.: 0,
      Max.: 255 Times
      0 Times -

      Body Electrical > Air Conditioner > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Rear Defogger Relay Window defogger operation condition OFF or ON OFF: Window defogger does not operate
      ON: Window defogger operates
      -
  2. ACTIVE TEST 

    HINT: 

    Using the GTS to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

    1. Perform the Active Test according to the display on the GTS.

      Body Electrical > Air Conditioner > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Rear Defogger Relay Rear window defogger wire (Back door glass) OFF or ON -