Power Seat Switch: Service and Repair

Inspection

With the power seat switch in each position, make sure that continuity exists between the terminals below. If continuity is not as specified, replace the power seat switch.
A : Power seat control switch
B : Lumbar support switch

















First Seat Heater
1. Check for continuity and measure the resistance between terminals.

[Cushion]





[Back]





Standard value (Fabric / Leather)
Cushion :4.77 Ohms ± 10%
Back4.30 Ohms ± 10% / 4.13 Ohms ± 10%
Set :9.07 Ohms ± 10% / 8.9 Ohms ± 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:40 ± 2°C (104 ± 35.6°F)
Back :46 ± 2°C (114.8 ± 35.6°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.3 terminals.





Standard value (Bench / Split)
Cushion :1.53 Ohms ± 10% / 4.05 Ohms ± 10%
Back :1.35 Ohms ± 10%
Set :2.88 Ohms ± 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 (Bench / Split)
Cushion :40º ± 2°C / 40º ± 2°C (104 ± 35.6°F)
Back :46º ± 2°C (114.8 ± 35.6°F)

Removal

1. Disconnect the negative (-) battery terminal.
2. Remove the seat side cover (A).





3. Disconnect the power seat control switch connector (A).




4. Loosen the power seat control switch (A) mounting screws (3EA).






Installation

NOTE:
- Make sure that the IMS control switch connectors and related connectors are plugged in properly.
- Check the IMS control switch operates normally.

1. Connect the connectors and reassemble the IMS control switch.
2. Reassemble the seat side cover.