| Last Modified: 11-27-2007 | 1.6 G | |
| Service Category: Vehicle Interior | Section: Seat | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000002XF800DX |
| Title: SEAT: FRONT SEAT CUSHION HEATER: INSPECTION (2008 LX570) | ||
INSPECTION
1. INSPECT FRONT SEAT CUSHION HEATER ASSEMBLY LH
(a) Check the seat cushion heater.
(1) Heat the thermostat with a light.
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A-1 - B-1 |
Seat cushion heater temperature 25°C (77°F) |
3.05 to 3.65 Ω |
|
A-4 - B-2 |
||
|
A-1 - A-4 |
||
|
A-2 - A-3 |
8 to 12 kΩ |
If the result is not as specified, replace the seat cushion heater assembly.
2. INSPECT FRONT SEAT CUSHION HEATER ASSEMBLY RH
(a) Check the seat cushion heater.
(1) Heat the thermostat with a light.
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A-1 - B-1 |
Seat cushion heater temperature 25°C (77°F) |
3.05 to 3.65 Ω |
|
A-4 - B-2 |
||
|
A-1 - A-4 |
||
|
A-2 - A-3 |
8 to 12 kΩ |
If the result is not as specified, replace the No. 1 seat cushion assembly (cushion set, occupant detection sensor, occupant classification ECU and 2 nuts).
3. INSPECT FRONT SEAT CUSHION HEATER ASSEMBLY LH (w/ Climate Control Seat System)
(a) Check the seat cushion heater.
(1) Heat the thermostat with a light.
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A-1 - B-1 |
Seat cushion heater temperature 25°C (77°F) |
3.05 to 3.65 Ω |
|
A-1 - A-3 |
||
|
A-3 - B-2 |
||
|
A-2 - A-4 |
8 to 12 kΩ |
If the result is not as specified, replace the seat cushion heater assembly.
4. INSPECT FRONT SEAT CUSHION HEATER ASSEMBLY RH (w/ Climate Control Seat System)
(a) Check the seat cushion heater.
(1) Heat the thermostat with a light.
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A-1 - B-1 |
Seat cushion heater temperature 25°C (77°F) |
3.05 to 3.65 Ω |
|
A-1 - A-3 |
||
|
A-3 - B-2 |
||
|
A-2 - A-4 |
8 to 12 kΩ |
If the result is not as specified, replace the seat set (cushion set, occupant detection sensor, occupant classification ECU and 2 nuts).
|
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