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Home >> Hyundai >> 2021 >> Tucson Ultimate, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transaxle Control System - 2.0L) >> Inhibitor Switch >> Repair Procedures >> Inspection >> Inspection flow of the inhibitor switch >> Items to check

Items to check

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  1. Inspect DTC code.
  2. Inspect whether N setting matches.
    • Adjust N setting

    (Refer to Automatic Transmission System - "INHIBITOR SWITCH ")

  3. Inspect shift cable separation.
    • Adjust shift cable separation (refer to automatic transmission system - "SHIFT CABLE ")
  4. Inspect whether connector is connected.
    • Inspect connector thoroughly for looseness, poor connection, bending, corrosion, contamination, deformation, or damage.
    • Turn ignition key "ON" and engine "OFF" and measure the power supplied to inhibitor switch circuit and voltage between ground.

      Specification:  approx. 12V

    • Fix the pin wiring when connector pin wiring is faulty.

      (Refer to Appropraite Service Wiring Diagram)

  5. Inspect ground condition on reversing light circuit.
    • Check the ground location of reversing light

      (Refer to Appropraite Service Wiring Diagram)

    • Reattach reversing light if ground condition is faulty.
  6. Inspect wiring connection on junction box power terminal and fuse lamp.
    • Check whether fuse holder is separated and holder is holding the fuse tight.
      G13021280Courtesy of HYUNDAI MOTOR AMERICA
    • Attach tester fuse to check if it is connected appropriately.
      G13021281Courtesy of HYUNDAI MOTOR AMERICA
    • Check whether fuse capacity is appropriate for each circuit.
    • Check if fuse is damaged.
    • Check pulling of fuse fixing wiring, inflow of foreign substance, and arrangement condition of terminal.
    • Relocate the terminal that has been pulled and inspect using the method explained above.
    • When problem is not solved, refer to the circuit diagram wiring repair instructions to fix or replace the terminal.
  7. Inspect inhibitor switch signal.
    • Turn ignition key "ON" and engine "OFF".
    • Measure the voltage between each terminal and chassis ground when shifting lever to "P, R, N, D" range.

      Specified value: 

      refer to specification "SIGNAL CODE " table