Kia Forte: Body Electrical System / Seat Heater Switch

Kia Forte 2019-2021 (BD) Service Manual / Body Electrical System / Seat Heater Switch

Components and components location
Components Location

Driver / Passenger Seat

1. Driver seat heater switch
2. Passenger seat heater switch

Rear Seat

1. Rear seat heater switch

Description and operation
Description

Heater Seat Smart Control Technology

To prevent low temperature burn, seat heater temperature will automatically be lowered after a certain period of time.

(Low temperature burn condition: Over 30 minutes at 50°C)

Heater Seat Smart Control Operation

[1st Row Seat]

Change to "MID" after 30 minutes in "HIGH", then "LOW" after 60 minutes in "MID"

Change to "LOW" after 60 minutes in "MID"

[2nd Row Seat]

Change to "MID" after 30 minutes in "HIGH", then "LOW" after 60 minutes in "MID"

Change to "LOW" after 60 minutes in "MID"

  

If temperature is raised manually within certain period of time after the temperature was lowered automatically, it will be lowered again soon to prevent overheating or low temperature burn.

This is normal operating condition as a safety device.

Schematic diagrams
Connector and Terminal Function

[Driver Side Heater Switch]

No.
Connector A
1
-
2
-
3
Ventilation switch signal
4
Ventilation indicator (High)
5
Ventilation indicator (Mid)
6
Ventilation indicator (Low)
7
Drive mode switch
8
-
9
-
10
-
11
-
12
Ground
13
Illumination (+)
14
-
15
Heater switch signal
16
Heater indicator (High)
17
Heater indicator (Mid)
18
Heater indicator (Low)
19
Steering wheel heater switch
20
Steering wheel heater indicator
21
-
22
-
23
-
24
Illumination (-)

[Passenger Side Heater Switch]

No.
Connector A
1
-
2
-
3
Ventilation switch signal
4
Ventilation indicator (High)
5
Ventilation indicator (Mid)
6
Ventilation indicator (Low)
7
PDW signal
8
PDW indicator
9
Instrument Cluster
10
-
11
-
12
Ground
13
Illumination (+)
14
-
15
Heater switch signal
16
Heater indicator (High)
17
Heater indicator (Mid)
18
Heater indicator (Low)
19
-
20
-
21
-
22
-
23
-
24
Illumination (-)

Circuit Diagram

[Driver Seat Heater Switch]

[Passenger Seat Heater Switch]

Repair procedures
Removal

Driver / Passenger Seat Heater Switch

1.

Disconnect the negative (-) battery terminal.

2.

Remove the front console upper cover.

(Refer to Body - "Floor Console Assembly")

3.

Remove the console upper cover garnish (A) after loosening the screws.

4.

Disconnect the heater switch connector (A).

[Driver side]

[Passenger side]

5.

Remove the heater switch (A) after loosening the screws.

[Driver side]

[Passenger side]

Rear Seat Heater Switch

1.

Remove the rear power window switch.

(Refer to Power Window - "Power Window Switch")

Installation
1.

Install in the reverse order of removal.

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