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Home >> Hyundai >> 2011 >> Equus Ultimate >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission Diagnosis >> DTC P0666: PCM/ECM/TCM Internal Temperature Sensor Circuit >> Scantool Diagnostics >> Monitor Scantool Data

Monitor Scantool Data

  1. Connect scantool to Diagnostic Connector.
  2. Ignition "ON" & Engine "OFF".
  3. Confirm the "TCM Temperature sensor" parameter on the scan tool.
    Fig 1: Current Data - Temperature Of TCU Inside
    G07308112Courtesy of HYUNDAI MOTOR CO.
  4. Is the "TCM Temperature sensor" output value normal range?

    YES 

    • Fault is intermittent caused by poor contact in the sensor's and/or TCM (PCM)'s connector or was repaired and TCM (PCM) 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 

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