Step | Action | Value(s) | Yes | No | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
1 | Did you perform the Lumbar Support System Check? | -- | Go to Step 2 | |||||||
2 | Is the symptom present for all of the seat lumbar switches? | -- | Go to Step 3 | Go to Step 8 | ||||||
3 | Test for an open or disconnected air line at one of the following components:
Are the air lines OK? | -- | Go to Step 5 | Go to Step 4 | ||||||
4 | Repair the air line problem. Is the repair complete? | -- | -- | |||||||
5 | Test the seat cushion air valve assemblies for leakage. Are the seat cushion air valve assemblies OK? | -- | Go to Step 6 | Go to Step 7 | ||||||
6 | Replace the seat air pump. Is the repair complete? | -- | -- | |||||||
7 | Replace the suspect seat cushion air valve assembly. Is the repair complete? | -- | -- | |||||||
8 | Test the associated air line for leaks between the seat cushion air valve assembly and the lumbar bladder. Are the air lines OK? | -- | Go to Step 9 | Go to Step 4 | ||||||
9 | Test the lumbar bladder for leaks. Is the bladder OK? | -- | Go to Step 5 | Go to Step 10 | ||||||
10 | Replace the lumbar bladder. Is the repair complete? | -- | -- |
