Kia Optima Hybrid: Seat Electrical / Seat Heater (Non-Air Ventilation) Repair procedures

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Body Electrical System / Seat Electrical / Seat Heater (Non-Air Ventilation) Repair procedures

Inspection

First Seat Heater

Check for continuity and measure the resistance between No.4 and No.6 terminals.

[Cushion]

No.	Description	No.	Description
1	Heater (-)	3	NTC (+)
2	NTC (-)	4	Heater (+)

[Back]

Measure the resistance between No.1 and No. 4 in the A connector to check the cushion and back heater.

Standard value

Set (Cushion+Back) : 2.65? ± 10%

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

Standard value

Cushion : 1.3? ± 10%

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

Standard value

Back : 1.35? ± 10%

Operate the seat heater after connecting the 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)

Rear Seat Heater

1.	Check for continuity and measure the resistance between terminals as below. ? Refer to the "Circuit Diagram" to check the connector B and C.

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 : 2.90? ± 10%

Cushion - Split type : 8.0? ± 10%

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 : 2.2? ± 10%

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

Standard value

Back - Bench type : 1.7? ± 10%

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)

Seat Heater (Non-Air Ventilation) Schematic Diagrams

Circuit Diagram ...

Air Ventilation Seat Components and Components Location

Components (1) 1. Ventilation blower2. Ventilation ECU3. Ventilation seat switch Components (2) Components (3) ...

Other information:

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