Lumbar Support Inoperative (Passenger)
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
Lumbar Support Inoperative (Passenger)
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Passenger Seat Schematics Connector End View Reference: Power Seat Connector End Views |
|||
| 1 | Did you review the Lumbar System Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to |
| 2 | Verify the fault is present. Does the system operate normally? |
Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
| 3 |
|
Go to Step 6 | Go to Step 4 |
| 4 | Test the motor control circuits for an open or short to ground. Refer to Circuit Testing
and to Wiring Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Step 5 |
| 5 | Inspect for poor connections at the lumbar switch. Refer to Testing for Intermittent Conditions and Poor Connections
and to Connector Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Step 7 |
| 6 | Inspect for poor connections at the inoperative lumbar or torso motor. Refer to Testing for Intermittent Conditions and Poor Connections
and to Connector Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Step 8 |
| 7 | Replace the lumbar switch. Refer to Lumbar Switch Replacement . Is the repair complete? |
Go to Step 9 | - |
| 8 | Replace the lumbar support/torso bolster motor assembly. Refer to Lumbar Replacement - Front Seat
. Is the repair complete? |
Go to Step 9 | - |
| 9 | Operate the system to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |