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Inspection [12/2019 - ]: Procedure

  1. INSPECT SPIRAL CABLE SUB-ASSEMBLY 
    NOTE:
    • Do not remove the steering sensor from the spiral cable sub-assembly when inspecting the spiral cable sub-assembly.
    • Remove the steering sensor from the spiral cable sub-assembly only when replacing the spiral cable sub-assembly.
    1. Visually check the spiral cable sub-assembly for defects.
      1. The defects are as follows:
        • Scratches
        • Small cracks
        • Dents
        • Chips
        • Cracks or other damage to the connector

          OK

          No defects are found.

        If any of the defects is found, replace the spiral cable sub-assembly with a new one.

    2. Check the spiral cable sub-assembly.
      GTY859063Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A w/o Heated Steering Wheel System *B w/ Heated Steering Wheel System
      *a Component without harness connected
      (Spiral Cable Sub-assembly)      		 *b Color: Light Green
      *c Color: Black - -
      Interlock - -
      NOTE:
      • When rotating the spiral cable sub-assembly, make sure to push on the interlock shown in the illustration to release the interlock mechanism.
      • As the spiral cable sub-assembly may break, do not rotate the spiral cable sub-assembly more than the specified amount.
      1. Set the spiral cable sub-assembly to the center position.

        See step  1 [12/2019 - 10/2022], or See step  1 [10/2022 - 11/2023], or See step  1 [11/2023 - ]

      2. Measure the resistance between each terminal of the spiral cable sub-assembly according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        H24-2 (ECC) - z1-12 (ECC) Always 3 Ω or less
        H24-4 (EAU) - z1-10 (EAU) Always 3 Ω or less
        H24-5 (AU2) - z1-9 (AU2) Always 3 Ω or less
        H24-6 (DIST) - z1-8 (DIST) Always 3 Ω or less
        H24-7 (HO) - A (HO) Always 3 Ω or less
        H24-9 (IL-2) - z1-6 (IL-2) Always 3 Ω or less
        H24-10 (+DP2) - z1-5 (+DP2) Always 3 Ω or less
        H24-11 (+DP) - z1-4 (+DP) Always 3 Ω or less
        H24-12 (AU1) - z1-3 (AU1) Always 3 Ω or less
        H24-13 (CCS) - z1-2 (CCS) Always 3 Ω or less
        H24-14 (IL+2) - z1-1 (IL+2) Always 3 Ω or less
        H25-1 (D+) - z2-2 (D+) Always Below 1 Ω
        H25-2 (D-) - z2-1 (D-) Always Below 1 Ω
        H25-3 (D2-) - z3-1 (D2-) Always Below 1 Ω
        H25-4 (D2+) - z3-2 (D2+) Always Below 1 Ω
        H40-2 (EHT) - z4-1 (EHT)* Always Below 0.1 Ω
        H40-4 (BHT) - z4-4 (BHT)* Always Below 0.1 Ω

        *: w/ Heated Steering Wheel System

      3. After setting the spiral cable sub-assembly to the center position, rotate the spiral cable sub-assembly 2.5 times clockwise, and measure the resistance according to the value(s) in the table below. Then rotate the spiral cable sub-assembly 5 times counterclockwise, and measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        H24-2 (ECC) - z1-12 (ECC) Always 3 Ω or less
        H24-4 (EAU) - z1-10 (EAU) Always 3 Ω or less
        H24-5 (AU2) - z1-9 (AU2) Always 3 Ω or less
        H24-6 (DIST) - z1-8 (DIST) Always 3 Ω or less
        H24-7 (HO) - A (HO) Always 3 Ω or less
        H24-9 (IL-2) - z1-6 (IL-2) Always 3 Ω or less
        H24-10 (+DP2) - z1-5 (+DP2) Always 3 Ω or less
        H24-11 (+DP) - z1-4 (+DP) Always 3 Ω or less
        H24-12 (AU1) - z1-3 (AU1) Always 3 Ω or less
        H24-13 (CCS) - z1-2 (CCS) Always 3 Ω or less
        H24-14 (IL+2) - z1-1 (IL+2) Always 3 Ω or less
        H25-1 (D+) - z2-2 (D+) Always Below 1 Ω
        H25-2 (D-) - z2-1 (D-) Always Below 1 Ω
        H25-3 (D2-) - z3-1 (D2-) Always Below 1 Ω
        H25-4 (D2+) - z3-2 (D2+) Always Below 1 Ω
        H40-2 (EHT) - z4-1 (EHT)* Always Below 0.1 Ω
        H40-4 (BHT) - z4-4 (BHT)* Always Below 0.1 Ω

        *: w/ Heated Steering Wheel System

      4. After setting the spiral cable sub-assembly to the center position, rotate the spiral cable sub-assembly 2.5 times clockwise. Then while rotating the spiral cable sub-assembly 5 times counterclockwise, measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        H24-2 (ECC) - z1-12 (ECC) Always 3 Ω or less
        H24-4 (EAU) - z1-10 (EAU) Always 3 Ω or less
        H24-5 (AU2) - z1-9 (AU2) Always 3 Ω or less
        H24-6 (DIST) - z1-8 (DIST) Always 3 Ω or less
        H24-7 (HO) - A (HO) Always 3 Ω or less
        H24-9 (IL-2) - z1-6 (IL-2) Always 3 Ω or less
        H24-10 (+DP2) - z1-5 (+DP2) Always 3 Ω or less
        H24-11 (+DP) - z1-4 (+DP) Always 3 Ω or less
        H24-12 (AU1) - z1-3 (AU1) Always 3 Ω or less
        H24-13 (CCS) - z1-2 (CCS) Always 3 Ω or less
        H24-14 (IL+2) - z1-1 (IL+2) Always 3 Ω or less
        H25-1 (D+) - z2-2 (D+) Always Below 1 Ω
        H25-2 (D-) - z2-1 (D-) Always Below 1 Ω
        H25-3 (D2-) - z3-1 (D2-) Always Below 1 Ω
        H25-4 (D2+) - z3-2 (D2+) Always Below 1 Ω
        H40-2 (EHT) - z4-1 (EHT)* Always Below 0.1 Ω
        H40-4 (BHT) - z4-4 (BHT)* Always Below 0.1 Ω

        *: w/ Heated Steering Wheel System

        If the result is not as specified, replace the spiral cable sub-assembly.

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