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Home >> Kia >> 2012 >> Optima LX, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (4WD Control System Diagnosis) >> DTC U0121: Lost Communication With Anti-Lock Brake System (ABS) Control Module >> Scantool Diagnostics >> Monitor Scantool Data
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Monitor Scantool Data

WARNING: This page is about a different car, the 2013 Kia Sportage and 2012 Kia Sportage. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect scantool to Data Link Connector (DLC).
  2. Warm up the engine to normal operating temperature.
  3. Using scantool, check if there is an error in ABS/ESC system.

    If there is an error in ABS/ESC system, first do a troubleshooting for those system and then check 4WD system.

  4. Is the same DTC displayed again?

    YES 

    • Go to next procedure.

    NO 

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