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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 75 (Active Hydraulic Booster (AHB) System Diagnosis (HEV)) >> DTC C1612: CAN Time-Out TCM >> Component Inspection >> Component Inspection

Component Inspection

WARNING: This page is about a different variant/trim than selected.
  1. IG "OFF".
  2. IG "ON".
  3. Connect GDS and select "Diagnostic Trouble Codes (DTC)" mode.
  4. Using a GDS, Clear DTC.
  5. Select "Diagnostic Trouble Codes (DTC)" mode again.
  6. Are any DTCs present?

    YES 

    • Substitute with a known-good PCM (TCM) and check for proper operation. If problem is corrected, replace PCM (TCM) and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
    • If NG, substitute with a known-good AHB ECU and check for proper operation. If problem is corrected, replace AHB ECU and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
      NOTE: * In a case of replacing AHB, operate following functions
      1. "Brake Pedal Travel Sensor Calibration" for brake pedal travel sensor offset correction (refer to C1380 ).
      2. "Pressure Sensor Calibration" for pressure sensor offset correction (refer to C1384 ).

    NO 

    • Fault is intermittent caused by faulty AHB, faulty PCM (TCM) or was repaired and AHB memory was not cleared. Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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