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Home >> Kia >> 2011 >> Optima EX, 2.4 7 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) - 2.4L >> DTC U1112: LIN Communication Error >> Inspection/Repair >> Component Inspection

Component Inspection

■ LIN communication line waveform check 

  1. IG "OFF".
  2. Connect probe to battery sensor to check signal waveform by using oscilloscope function.
  3. IG "ON" and monitor signal waveform.

    Specification :  Signal waveform will be displayed as Signal Waveform & Data

    Fig 1: Checking Signal Waveform Of Battery Sensor
    G07387045Courtesy of KIA MOTORS AMERICA, INC.
  4. Is the measured signal waveform O.K?

    YES 

    NO 

    • Substitute with a known - good battery sensor and check for proper operation. If the problem is corrected, replace battery sensor and go to "VERIFICATION OF VEHICLE REPAIR " procedure.