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Home >> Kia >> 2010 >> Optima EX, 2.4 8 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Troubleshooting (Automatic Transaxle) >> DTC P0885: TCM Power Relay Control Circuit Open >> Inspection/Repair >> Component Inspection
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Component Inspection

  1. Ignition "OFF".
  2. Remove "A/T CONTROL RELAY"
  3. Measure the resistance between each terminal of the sensor

    Specification: 

    TERMINAL RESISTANCE REFERENCE

    Item Terminal No
    Resistance 1 (red) - 3 (black) INFINITE
    2 (black) - 4 (red)  
    Supply (B+) to number 4 and supply (B-) to number 2. 1 (red) - 3 (black) 0 Ω
    Fig 1: Measuring Resistance Between Terminals Of A/T Control Relay
    G06416973Courtesy of KIA MOTORS AMERICA, INC.
  4. Is resistance within specifications?

    YES 

    • Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO