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Home >> Kia >> 2012 >> Optima LX, Automatic Trans >> Repair and Diagnosis (Single Page) >> Body & Frame >> Seats >> Seat Electrical - Except HEV >> Seat Heater (Non-Air Ventilation) >> Repair Procedures >> Inspection >> Rear Seat Heater

Rear Seat Heater

  1. Check for continuity and measure the resistance between terminals as below.
    Fig 1: Rear Seat Heater Connector End View
    G07380818Courtesy of KIA MOTORS AMERICA, INC.

    * Refer to Circuit Diagram  to check the connector B and C.

  2. Measure the resistance between No. 1 and No. 2 in the A connector to check the cushion and back heater.

    Standard value 

    Set (Cushion+Back) - Bench type :  2.90Ω ± 10%

    Cushion - Split type :  8.0Ω ± 10%

  3. Measure the resistance between No. 3 in the A and No. 1 in the B connector to check the cushion heater.

    Standard value 

    Cushion - Bench type :  2.2Ω ± 10%

  4. Measure the resistance between No. 1 and No. 2 in the C connector to check the back heater.

    Standard value 

    Back - Bench type :  1.7Ω ± 10%

  5. Operate seat warmer after connecting the 4P connector, and then check the thermostat by measuring the temperature of seat surface.

    Standard value (Fabric / Leather) 

    Cushion: 

    1 Step : 40 ± 2°C (104 ± 3.6°F)

    2 Step : 42 ± 2°C (107.6 ± 3.6°F)

    Back: 

    1 Step : 46 ± 2°C (114.8 ± 3.6°F)

    2 Step : 52 ± 2°C (125.6 ± 3.6°F)