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Home >> Kia >> 2006 >> Optima EX, 2.4 6 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle System >> DTC P0750 Shift Control Solenoid Valve A Circuit Malfunction >> Component Inspection

Component Inspection

  1. CHECK SOLENOID VALVE
    1. Ignition "OFF".
    2. Disconnect "A/T SOLENOID VALVE" connector.
    3. Measure resistance between terminal "6" and terminal "11" of the ATM SOLENOID VALVE harness connector.

      Specification: Approximately 2.7~3.4 Ω [20°C (68°F)]

      Fig 1: Measuring Resistance Between Terminal 6 And 11 Of ATM Solenoid Valve Harness Connector
      G04805162Courtesy of KIA MOTORS AMERICA, INC.
    4. Is resistance within specification?

      YES  : --> Go to  2 "CHECK PCM/TCM" as below.

      NO  : --> Replace LR SOLENOID VALVE as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

  2. CHECK PCM/TCM
    1. Connect scantool to data link connector (DLC).
    2. Ignition "ON" & Engine "OFF".
    3. Select A/T solenoid valve actuator test and operate actuator test.
    4. Can you hear operating sound for LR SOLENOID VALVE actuator testing function?

      YES  : --> Go to "VERIFICATION OF VEHICLE REPAIR " procedure.

      NO  : --> Replace PCM/TCM as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

      ACTUATOR TEST CONDITION 

      1. IG SWITCH ON
      2. TRANSAXLE RANGE SWITCH is normal
      3. P RANGE
      4. Vehicle Speed 0mph (0km/h)
      5. Throttle position sensor < 1V
      6. IDLE SWITCH ON
      7. ENGINE RPM 0