Seat Heater (Non-Air Ventilation)

Inspection

First Seat Heater
1. Check for continuity and measure the resistance between No.4 and No.6 terminals.

[Cushion]










[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) :2.65Ohms ± 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 :1.3Ohms ± 10%

4. Measure the resistance between No.1 and No. 2 in the C connector to check the back heater.

Standard value
Back :1.35Ohms ± 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 :2.90Ohms ± 10%
Cushion - Split type :8.0Ohms ± 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 :2.2Ohms ± 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 :1.7Ohms ± 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)