Kia Optima Hybrid Owner's Manual Quiz
Automatic Transmission

Inhibitor Switch Repair Procedures

In this manual: Automatic Transmission
General Information — 4Engine Mechanical System — 50Engine Electrical System — 20Emission Control System — 30Engine Control System/Fuel System — 84Automatic Transmission — 98Drive Shaft and Axle — 15Suspension System — 36Steering — 12Restraints — 50Brake System — 38Body (Interior and Exterior) — 54Body Electrical System — 233Heating, Ventilation, and Air Conditioning — 57
34steps
~209min
5/5difficulty
1special tools
0102030405024.518N·mlb·ft
Tightening torque found on this page
Done 0 of 34

Inspection
  • Carefully check the connectors for looseness, poor connection, bending, corrosion, contamination, wear, or damage.
Power Supply Circuit Inspection
  1. Disconnect the shift lock switch connector (A).
  2. Ignition switch "ON" and engine "OFF".
  3. Measure the voltage between the power supply and ground in the inhibitor circuit.

    Specification approx. 12 V

  4. Connect the shift lock switch connector (A).
  5. Ignition switch "ON" and engine "OFF".
  6. Measure the voltage between each terminal and chassis ground while moving the shift lever to "P, R, N, D".

    Specification: Refer to the "Signal Code Table" below.

Signal Circuit Inspection Signal Code Table
PIN P P-R R P-R N N-D D
Signal "1" 12V 12V 0 0 0 0 0
Signal "2" 0 12V 12V 12V 0 0 0
Signal "3" 0 0 0 12V 12V 12V 0
Signal "4" 0 0 0 0 0 12V 12V

Removal
  • Be sure to read and observe the "General Safety Information and Caution" before performing any work on the high voltage system. Failure to follow the safety instructions may result in serious electrical injury.
  • Always disconnect the high-voltage circuit in accordance with the "High Voltage Disconnection Procedure" before performing any work on the high-voltage system to avoid serious electric shock.
  1. Disconnect the high-voltage circuit. (Refer to Automatic Transmission - "High Voltage Disconnection Procedure").
  2. Move the shift lever to the "N" position.
  3. Remove the lower cover (A).
  4. Drain the coolant from the hybrid engine cooling system. (Refer to Hybrid Powertrain System - "Engine Coolant")
  5. Remove the air duct (A).
  6. Remove the air cleaner assembly.
    1. Disconnect the breather hose (A).
    2. Disconnect the air intake hose (B) and remove the air cleaner assembly (C).
  7. Remove the hybrid power control unit assembly. (Refer to Hybrid Control System - "HPCU (Hybrid Power Control Unit)").
  8. Remove the tray (A).
  9. Remove the lock switch (A).
  10. Remove the shift cable mounting nut (B).
  11. Remove the manual control lever (B) and washer by removing the nut (A).
  12. Remove the inhibitor switch (A) after removing the 2 bolts.

Installation

  1. Make sure the shift lever is in the "N" position.
  2. Install the inhibitor switch (A).
    Loosely tighten the inhibitor switch mounting bolts so that the necessary adjustments can be made.
  3. Install the manual control lever (A).
    Loosely tighten the manual control lever nut (B) so that the necessary adjustments can be made.
  4. Align the hole (A) in the manual control lever with the "N" mark. Install the inhibitor switch hole (B), then insert the SST inhibitor switch guide pin (09480-A3800).
  5. Tighten the nut (A) and bolts (B) to the specified torque. Tightening torque: A: 17.7 ~ 24 N·m B: 9.8 ~ 11.8 N·m
  6. Remove the SST (09480-A3800).
  7. Connect the shift lock switch connector (A).
  8. Install the shift cable by tightening the nut (B).
    Lightly tighten the shift cable mounting nut (B) so that the necessary adjustments can be made.
  9. Push the shift cable in the direction of arrow "F" to remove the free play, then tighten the nut (A) to the specified torque.

    Tightening torque: 9.8 ~ 14.7 N·m

  10. Install the tray (A).

    Tightening torque: 19.6 - 29 N·m

  11. Install the hybrid power control unit assembly. (Refer to Hybrid Control System - "HPCU (Hybrid Power Control Unit)").
  12. Install the air cleaner assembly.
    1. Disconnect the breather hose (A).
    2. Disconnect the air intake hose (B) and remove the air cleaner assembly (C).
    Tightening torque: Hose clamp bolt: 2.9 ~ 4.9 N·m Air cleaner mounting bolts: 7.8 ~ 9.8 N·m
    • When installing the air intake hose, align the clamp plate with the hose stopper.
    • When installing the air intake hose, align the center of the mark on the hose with the rib of the throttle body.
  13. Install the air duct (A).

    Tightening torque: 7.8 ~ 9.8 N·m

  14. Install the lower cover (A).

    Tightening torque: 7.8 ~ 11.8 N·m

  15. Connect the high-voltage circuit.
  16. Fill the hybrid engine cooling system with coolant, then perform air bleeding using GDS. (Refer to Hybrid Powertrain System - "Engine Coolant")

Test yourself

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