2017 Kia Optima LXFACTORY OEM SERVICE PROCEDURE

Repair Procedures: Inspection

WARNING: This page is about a different car, the 2018 Kia Optima. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check the resistance between terminals in each switch position (LH).
    Fig 1: Checking Resistance Between Terminals In Each Switch Position (LH)
    G12142966Courtesy of KIA MOTORS AMERICA, INC.

    [LH: Audio + Hands free] 

    Switch Connector terminal Resistance (±5%)
    SEEK Up 2-5 430 Ω
    SEEK Down 1.11 kΩ
    MODE 2.11 kΩ
    MUTE 3.11 kΩ
    Volume (+) 4.61 kΩ
    Volume (-) 6.81 kΩ
    Voice 10.71 kΩ
    END 18.91 kΩ
    SEND 40.91 kΩ
  2. Check the resistance between terminals in each switch position (RH).
Fig 2: Checking Resistance Between Terminals In Each Switch Position (RH)
G12142967Courtesy of KIA MOTORS AMERICA, INC.

[RH: Trip + Cruise] 

Switch Connector terminal Resistance (±5%)
Cancel 3-5 390 Ω
SET - 610 Ω
RES + 910 Ω
Cruise ON/OFF 2.13 kΩ
SCC (Following distance control) 3.63 kΩ
Ground 2-5 390 Ω
Trip Up 610 Ω
Trip Down 910 kΩ
ENTER 1.38 kΩ
BACK 2.13 kΩ
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.