Kia Optima Hybrid Owner's Manual Quiz
Body Electrical System

Seat Heater (without Ventilation) Repair Procedures

In this manual: Body Electrical System
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
10steps
~60min
3/5difficulty
Done 0 of 10

Inspection

Front Seat Heater
  1. Check the circuit continuity and measure the resistance between terminals No. 4 and No. 6. [Cushion]
    No. Description No. Description
    1 Heater (-) 3 NTC (+)
    2 NTC (-) 4 Heater (+)

    [Back]
  2. Measure the resistance between No. 1 and No. 4 at connector A to check the cushion and back heater.

    Specification: Assembly (cushion + back): 2.65 Ω ± 10%

  3. Measure the resistance between No. 4 at connector A and No. 1 at connector B to check the cushion heater.

    Specification: Cushion: 1.3 Ω ± 10%

  4. Measure the resistance between No. 1 and No. 2 at connector C to check the rear heater.

    Specification: Rear: 1.35 Ω ± 10%

  5. Connect the connector, turn on the seat heater, and then check the thermostat by measuring the seat surface temperature. Standard Value (Cloth/Leather) Cushion: Step 1: 40 ± 2 °C Step 2: 42 ± 2 °C Back: Step 1: 46 ± 2 °C Step 2: 52 ± 2 °C
  6. Check the continuity and measure the resistance between the terminals as shown below.
    * Refer to the Circuit Diagram to check connectors B and C.
  7. Measure the resistance between No. 1 and No. 2 at connector A to check the cushion and rear heater. Specification: Assembly (Cushion + Back) - Bench Type: 2.90 Ω ± 10%; Cushion - Separate Type: 8.0 Ω ± 10%
  8. Measure the resistance between No. 3 at connector A and No. 1 at connector B to check the cushion heater.

    Specification: Cushion - Bench Type: 2.2 Ω ± 10%

  9. Measure the resistance between No. 1 and No. 2 at connector C to check the rear heater.

    Specification: Back - Bench Type: 1.7 Ω ± 10%

  10. Turn on the seat heater after connecting the 4-pin connector, then check the thermostat by measuring the seat surface temperature. Specification (cloth/leather) Cushion: Step 1: 40 ± 2 °C Step 2: 42 ± 2 °C Back: Step 1: 46 ± 2 °C Step 2: 52 ± 2 °C
Rear Seat Heater

Test yourself

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