Kia Cadenza YG: Seat Electrical / Seat Heater Repair procedures

Inspection
First Seat Heater
1.
Check for continuity and measure the resistance between No.1 and NO.4 terminals.

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


Standard value (Fabric / Leather)
Cushion : 1.04 Ω ± 10%
Back : 1.1 Ω ± 10%
Set : 2.14 Ω ± 10%

2.
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)

3.
Check for continuity between the terminals after disconnecting the connector.
2nd Seat Heater
1.
Check for continuity and measure the resistance between No.1 and NO.4 terminals.

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


Standard value (Fabric / Leather)
Cushion : 1.16 Ω ± 10%
Back : 1.16 Ω ± 10%
Set : 2.32 Ω ± 10%

2.
Operate the seat warmer after connecting the 3P 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)

    Circuit Diagram

    Circuit Diagram

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Description and Operation

    Description System Overview The System offers the following features: – Human / machine interface through a 1-stage button, for terminal switching and engine start. – Control of external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition switch.

    Kia Cadenza YG 2016-2021 Service Manual: Blower Unit Components and Components Location

    Component Location Components 1. Duct Seal2. Duct Case3. Inlet Door4. Intake Actuator5. Inlet Duct Case (A)6. Climate control air filter7. Cluster Ionizer8. Climate control air filter Cover9. Blower Upper Case10. Blower Lower Case11. FET12. Resistor13.

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