Kia Sedona: Seat Heater Repair procedures
First Row Seat Heater
1.
Check for continuity and measure the resistance between terminals No 3 and No 6.
Standard value
Driver / Assists (cushion) : 3.23Ω±10%
Driver / Assists (back) : 3.74Ω±10%
Driver / Assists (cushion + back) : 6.97Ω±10%
2.
Operate the seat heater after connecting the connector, and
then check the thermostat by measuring the temperature of seat surface.
Standard value
1st : cushion : 36±2°C, back : 40±2°C
2nd : cushion : 39±2°C, back : 45±2°C
3rd : cushion : 42±2°C, back : 50±2°C
Second Row Seat Heater
1.
Check for continuity and measure the resistance between terminals No 1 and No 4.
Standard value
Second row seat (cushion + back): 1.63Ω±10%
2.
Operate the seat heater after connecting the connector, and
then check the thermostat by measuring the temperature of seat surface.
Standard value
1st : cushion : 36±2°C, back : 40±2°C
2nd : cushion : 39±2°C, back : 45±2°C
3rd : cushion : 42±2°C, back : 50±2°C
Circuit Diagram
Connector Pin Information
No.DescriptionNo.Description1Power Seat Batt (+)18Left NTC (+)2Left air ventilation/heater cushion batt (+)19Air ventilation/heater ECU batt (+)3Left ai ...
Components
1. Driver seat heater switch2. Assist seat heater switch
1. Second row seat heater switch [LH]2. Second row seat heater switch [RH]
...
Other Information: To convert to cruise control mode
The driver may choose to only use the cruise control mode (speed control function)
by doing as follows:
1.Turn the SCC on (the cruise indicator light will be on but the system will
not be act ...
Troubleshooting
Trouble Symptom Charts
Trouble Symptom 1
Trouble Symptom 2
Trouble symptomProbable causeRemedyThe set vehicle speed varies greatly upward or downward"Surging" (repeated alternating accelerati ...