Power Seat Inoperative (w/o Memory)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Power Seat Inoperative (w/o Memory) Diagnostic Test
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Driver Seat Schematics , Passenger Seat Schematics Connector End View Reference: Power Seat Systems Connector End Views DEFINITION: One or more of the power seat functions are inoperative. |
|||
| 1 | Did you review the Power Seat System Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Seats |
| 2 | Attempt to operate all of the power seat adjuster motors through their full range of adjustment. Do all of the power seat adjuster motors operate normally? |
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Are all the power seat adjuster motors inoperative? | Go to Step 4 | Go to Step 6 |
| 4 |
|
Go to Step 5 | Go to Step 8 |
| 5 | Connect a test lamp from the battery voltage supply circuit terminal to the ground circuit terminal in the power seat switch harness connector. Does the test lamp illuminate? |
Go to Step 10 | Go to Step 9 |
| 6 |
|
Go to Step 11 | Go to Step 7 |
| 7 |
|
Go to Step 14 | Go to Step 10 |
| 8 | Repair the battery voltage supply circuit to the power seat switch for an open or short to ground. Refer to Circuit Testing
and to Wiring Repairs
in Wiring Systems. Is the repair complete? |
Go to Step 14 | - |
| 9 | Repair the power seat switch ground circuit for an open or high resistance. Refer to Circuit Testing
and to Wiring Repairs
in Wiring Systems. Is the repair complete? |
Go to Step 14 | - |
| 10 | Inspect for poor connections at the power seat switch. Refer to Testing for Intermittent Conditions and Poor Connections
and toConnector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 14 | Go to Step 12 |
| 11 | Inspect for poor connections at the inoperative adjuster motor. Refer to Testing for Intermittent Conditions and Poor Connections
and to Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 14 | Go to Step 13 |
| 12 | Replace the power seat switch. Refer to Seat Switch Replacement - Power or to Lumbar Switch Replacement - Front . Is the repair complete? |
Go to Step 14 | - |
| 13 | Replace the inoperative seat adjuster motor. Refer to Seat Adjuster Mechanism Replacement - Power or to Lumbar Replacement - Front Seat . Is the repair complete? |
Go to Step 14 | - |
| 14 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |