LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2020 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transaxle Control System (PHEV) >> Input Speed Sensor >> Repair Procedures >> Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Repair Procedures: Inspection

WARNING:
  • Be sure to read and follow the "GENERAL SAFETY INFORMATION & CAUTION " before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries.
  • Be sure to shut off the high voltage circuit according to the "HIGH VOLTAGE SHUTOFF PROCEDURE " before doing any work related with the high voltage system to avoid serious electrical injuries.
  1. Shut off the high voltage circuit.

    (Refer to Automatic Transaxle System - "HIGH VOLTAGE SHUT-OFF PROCEDURE ")

  2. Remove the hybrid power control unit (HPCU) assembly.

    (Refer to Hybrid Control System - "HYBRID POWER CONTROL UNIT ")

  3. Remove the high voltage cable (A) and HPCU tray (B).

    Tightening torque: 

    19.6 - 29.4 N.m (2.0 - 3.0 kgf.m, 14.5 - 21.7 lb.ft)

    G13361939Courtesy of KIA MOTORS AMERICA, INC.
  4. Disconnect the solenoid valve connector (A).
    G13361940Courtesy of KIA MOTORS AMERICA, INC.
  5. Measure the resistance between power terminal (14) and signal terminal (8).

    Specification  : Approx. 0.88 MΩ

    G13361941Courtesy of KIA MOTORS AMERICA, INC.