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Home >> Kia >> 2016 >> Sedona EX >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle Control System >> Transaxle Control Module (TCM) >> Repair Procedures >> Inspection
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Repair Procedures: Inspection

  1. TCM ground circuit test: Measure resistance between TCM and chassis ground using the backside of TCM harness connector as TCM side check point.

    Specification:  Below 1Ω

  2. TCM connector test: Disconnect the TCM connector and visually check the ground terminals on TCM side and harness side for bent pins or poor contact pressure.
  3. If problem is not found in Steps  1 and  2, the TCM could be faulty.

    If so, replace the TCM with a new one, and then check the vehicle again. If the vehicle operates normally then the problem was likely with the TCM.

  4. The original TCM re-test: Install the original TCM (may be broken) into a known-good vehicle and check the vehicle. If the problem occurs again, replace the original TCM with a new one.

    If problem does not occur, this is intermittent problem. If problem does not occur, this is problem of other parts.

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