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Home >> Kia >> 2016 >> Sorento L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (4WD Control System Diagnosis) >> DTC U1121: Lost Communication With Electric Stability Program Module >> Component Inspection
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Component Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Ignition switch "OFF"
  2. Connect GDS to Data Link Connector (DLC).
  3. Ignition switch "ON"
  4. Monitor "Diagnostic Trouble Codes (DTC)  " with GDS.
  5. Clear any DTCs stored in the system with GDS.
  6. Re-check DTC in the system with GDS.
  7. Did the same DTC is stored in the system?

    YES 

    • Carefully re-do this troubleshooting guide steps.
    • If no problems were found with the circuits or connectors, replace Yaw rate & G-sensor and then go to "Verification Of Vehicle Repair " procedure.

    NO 

    • Fault might be intermittent and caused either by poor contact in connectors or wiring harness, or it has been repaired and control module memory is not cleared yet. Thoroughly check terminal of battery, all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
    • Repair or replace as necessary and then go to "Verification Of Vehicle Repair " procedure.