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Home >> Hyundai >> 2012 >> Genesis Coupe 3.8 Track, Automatic Trans >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission System - 3.8L >> DTC P0666: PCM/ECM/TCM Internal Temperature Sensor Circuit >> 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: Screen Display - Current Data - Temperature Of TCU Inside
    G06509527Courtesy of HYUNDAI MOTOR CO.
  4. Is the "TCM Temperature sensor" output value within 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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