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Home › Kia › 2016 › Optima Hybrid › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (2 Of 3) (HEV) › DTC P0605: Internal Control Module Read Only Memory(ROM) Error › Component Inspection › Throttle Position Sensor Resistance Inspection

Throttle Position Sensor Resistance Inspection

  1. Ignition "OFF".
  2. Disconnect Battery (-) terminal.
  3. Refer to Intake Manifold and disconnect Throttle Body connector.
  4. Measure resistance between Pin No. 4 (TPS1 Signal) terminal and Pin No. 2 (TPS Supply) terminal of Throttle Body harness connector.
  5. Measure resistance between Pin No. 5 (TPS2 Signal) terminal and Pin No. 2 (TPS Supply) terminal of Throttle Body harness connector.

    Specification: 

    TPS1: 0.875 ~ 1.625 kΩ(68°F/20°C)

    TPS2: 0.875 ~ 1.625 kΩ(68°F/20°C)

  6. Is measured value within specification?

    YES 

    • Carefully re-do this troubleshooting guide steps.
    • If the diagnostics have been performed correctly with no failure found, replace the PCM and then go to "Verification Of Vehicle Repair " procedure.
      CAUTION: When replacing the PCM, the vehicle equipped with the immobilizer must be performed procedure as below.
      [In the case of installing used PCM]
      1. Perform "PCM Neutral mode" procedure with GDS. (Refer to Smart Key System - Optima HEV )
      2. After finishing "PCM Neutral mode", perform "Key teaching" procedure with GDS. (Refer to Smart Key System - Optima HEV )

      [In the case of installing new PCM]
      Perform "Key teaching" procedure with GDS. (Refer to Smart Key System - Optima HEV )
      CAUTION: When replacing the PCM, the vehicle equipped with the smart key system (Button start) must be performed procedure as below.
      [In the case of installing used PCM]
      1. Perform "PCM Neutral mode" procedure with GDS. (Refer to Smart Key System - Optima HEV )
      2. After finishing "PCM Neutral mode", insert the key (or press the start button) and turn it to the IGN ON and OFF position. Then the PCM learns the smart key information automatically.

      [In the case of installing new PCM]
      Insert the key (or press the start button) and turn it to the IGN ON and OFF position. Then the PCM learns the smart key information automatically.

    NO 

    • Carefully re-do this troubleshooting guide steps.
    • If no problems were found with the circuits or connectors, replace Throttle Body and then go to Verification Of Vehicle Repair procedure below.
      CAUTION:
      • Install the component with the specified torques.
      • Note that internal damage may occur when the component is dropped or mis-treated.
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