Kia Optima Hybrid: Seat Electrical / Seat Heater (Non-Air Ventilation) Repair procedures
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) : 2.65? ± 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 : 1.3? ± 10%
4.
Measure the resistance between No.1 and No. 2 in the C connector to check the back heater.
Standard value
Back : 1.35? ± 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.
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 : 2.90? ± 10%
Cushion - Split type : 8.0? ± 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 : 2.2? ± 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 : 1.7? ± 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)
Components (1) 1. Ventilation blower2. Ventilation ECU3. Ventilation seat switch Components (2) Components (3) ...
Other information:
Basic Troubleshooting Basic Troubleshooting Guide Customer Problem Analysis Sheet Basic Inspection Procedure Measuring Condition of Electronic Parts'' Resistance The measured resistance at high temperature after vehicle running may be high or low. So all resistance must be measured at near to normal ...
High Voltage Shut-off Procedures Be sure to read and follow the “General Safety Information and Caution” before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries. • High voltage components: ...
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