Engine Control System/Fuel System

ETC (Electronic Throttle Control) System Repair Procedures

13steps
~78min
3/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 13

Inspection

Throttle Position Sensor (TPS)
  1. Connect the GDS to the Data Link Connector (DLC).
  2. Start the engine and measure the output voltage of TPS 1 and 2 at TP and VOT.
    Throttle Angle Output voltage (V)
    TPS 1 TPS 2
    THA 0,3 ~ 0,9 4,2 ~ 5,0
    THW 1,5 ~ 3,0 3,3 ~ 3,8
  3. Turn the ignition OFF and disconnect the scan tool from the DLC.
  4. Disconnect the ETC module connector and measure the resistance between terminals 1 and 2 of the ETC module.

    Specification: Refer to "Specifications"

  5. Turn the ignition off.
  6. Disconnect the ETC module connector.
  7. Measure the resistance between terminals 3 and 6 of the ETC module.
  8. Make sure the resistance is within specification.

    Specification: 1.2 ~ 1.8 Ω [20 °C]

ETC Motor

Removal

  1. Turn the ignition switch OFF and disconnect the negative (-) battery terminal.
  2. Remove the air cleaner resonator and intake hose (refer to "Intake and Exhaust System" in the EM group).
  3. Disconnect the ETC module connector (A).
  4. Disconnect the coolant hoses (B).
  5. Remove the mounting bolts (C) and remove the ETC module from the engine.

Installation

  • Install the component with the specified torque.
  • Note that internal damage may occur if the component is dropped. In this case, inspect it before use.
  1. Install in the reverse order of removal. ETC body mounting bolt: 7.8 ~ 11.8 N·m

Test yourself

A quick Kia Optima Hybrid Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.