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Home >> Kia >> 2010 >> Forte LX, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (ULEV) (2 Of 2) >> DTC U0101: Lost Communication With TCM >> Inspection Repair >> Component Inspection

Component Inspection

  1. Ignition "OFF"
  2. Measure resistance between High signal terminal and Low signal terminal of PCM connector (PCM side).

    Specification:  Approx. 110~130Ω

    Fig 1: Measuring Resistance Between High & Low Signal Terminals Of PCM Connector (PCM Side)
    G06491337Courtesy of KIA MOTORS AMERICA, INC.
  3. Is resistance within the specification?

    YES 

    • Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure

    NO 

    • Check PCM for contamination, deterioration, or damage. Substitute with a known-good PCM and check for proper operation. If the problem is corrected, replace PCM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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