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Home >> Hyundai >> 2004 >> Tiburon Base, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System (2.0L) >> General >> ECM Problem Procedure

ECM Problem Procedure

  1. Turn ignition switch to OFF.
  2. Disconnect ECM connector, measure the resistance between ground terminal on the ECM side (terminal 1, 2) and chassis ground.
    Fig 1: Identifying ECM Connector
    G00893128Courtesy of HYUNDAI MOTOR CO.
  3. Inspect connector connection and check terminal for poor connections, loose wires, bent or broken pins and corrosion.
  4. If it is abnormal, repair it. If it is normal, the ECM could be faulty.
  5. Temporarily install a good ECM and check for proper operation. If problem disappeared, replace ECM.
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