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Home >> Hyundai >> 2011 >> Accent GL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC U0101: ECM - TCM CAN Error >> Scan Tool Diagnostics >> Monitor Scan Tool Data
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Monitor Scan Tool Data

  1. Connect scan tool to Data Link Connector (DLC).
  2. Warm up the engine to normal operating temperature.
  3. Monitor the "CAN" parameters on the scan tool.
    • Check "Transaxle type, Torque control request, etc." at the ECU service data mode.
    • Check "TPS, RPM, IDLE STATE, etc." at the TCU service data mode.
  4. Are the parameters displayed correctly?

    YES 

    1. Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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