Kia Cadenza: Seat Electrical / Seat Heater Repair procedures

Kia Cadenza YG 2016-2025 Service Manual / Body Electrical System / Seat Electrical / Seat Heater Repair procedures

Inspection

First Seat Heater

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%

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

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%

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)

Seat Heater Schematic Diagrams

Circuit Diagram ...

Seat Heater Switch Schematic Diagrams

Circuit Diagram ...

Other information:

Kia Cadenza YG 2016-2025 Owners Manual: Good driving practices

Never move the gear shift lever from P (Park) to any other position with the accelerator pedal depressed. Never move the gear shift lever into P (Park) when the vehicle is in motion. Slow down before shifting to a lower gear. Otherwise, the lower gear may not be engaged. ...

Kia Cadenza YG 2016-2025 Service Manual: Troubleshooting

Troubleshooting Examples of False-Alarm Occurrence from system characteristics (It’s not a problem) – Characteristics of EM Wave : EM Waves are reflected against all material and especially metal very well. Reflections of EM Waves are varies with the shape of object. (※ EM : Ele ...