Kia Optima: Seat Heater (Non-Air Ventilation). Repair procedures - Seat Electrical - Body Electrical System - Kia Optima TF 2011-2025 Service ManualKia Optima: Seat Heater (Non-Air Ventilation). Repair procedures

Inspection

First Seat Heater
1. 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]

2. 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) : 2.65Ω ± 10%


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

Standard value

Cushion : 1.3Ω ± 10%


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

Standard value

Back : 1.35Ω ± 10%


5. 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.

※ Refer to the "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)

Seat Heater (Non-Air Ventilation). Schematic Diagrams
Circuit Diagram ...

Air Ventilation Seat. Components and Components Location
...

See also:

Removal
1. Disconnect the negative (-) battery terminal. 2. Remove the driver airbag module. (Refer to the RT group) 3. Remove the steering wheel. (Refe ...

Rear Seat
The rear seatbacks fold forward to provide additional cargo space and to provide access to the trunk area. To fold the rear seatback(s) down, press the unlock button located on top of the s ...

Necessary inspections
Fluid levels, such as engine oil, engine coolant, brake fluid, and washer fluid should be checked on a regular basis, with the exact interval depending on the fluid. Further details are provided i ...

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