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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Transfer Case System - Service Information) >> Combination Switch >> Inspection [09/2023 - ] >> Procedure

Inspection [09/2023 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. INSPECT ELECTRIC PARKING BRAKE SWITCH ASSEMBLY (TRAIL MODE SWITCH) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1123158Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Electric Parking Brake Switch Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      5 (B) - 7 (E) Pressed Below 40 Ω Ω
      5 (B) - 7 (E) Not pressed 10 kΩ or higher

      If the result is not as specified, replace the electric parking brake switch assembly.

  2. INSPECT ELECTRIC PARKING BRAKE SWITCH ASSEMBLY (ILLUMINATION) 
    1. Apply auxiliary battery voltage to the drive mode select switch (combination switch assembly) and check that the switch illuminates.
      GTY1063259Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Electric Parking Brake Switch Assembly)

      OK

      Condition Specified Condition
      Auxiliary battery positive (+) → Terminal 11 (ILL+)
      Auxiliary battery negative (-) → Terminal 15 (ILL-)
      Illuminates

      If the result is not as specified, replace the electric parking brake switch assembly.