Diagnostic Aids
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
If the DTC is only found in history, the fault may be intermittent. Refer to TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS in Wiring Systems.
DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Power Seats Schematics Connector End View Reference: Power Seat Systems Connector End Views |
|||
| 1 | Did you perform the Power Seat Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Power Seat Systems |
| 2 |
|
Go to TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS in Wiring Systems | Go to Step 3 |
| 3 | Disconnect the seat adjuster switch connector. Does the scan tool display Inactive? |
Go to Step 5 | Go to Step 4 |
| 4 | Test the switch signal circuit for which the DTC has set for a short to voltage. Refer to CIRCUIT TESTING
and WIRING REPAIRS
in Wiring Systems. Did you find and correct the condition? |
Go to Step 9 | Go to Step 7 |
| 5 | Inspect for poor connections at the seat adjuster switch. Refer to TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
and CONNECTOR REPAIRS
in Wiring Systems. Did you find and correct the condition? |
Go to Step 9 | Go to Step 6 |
| 6 | Replace the seat adjuster switch. Refer to Seat Switch Replacement - Power . Is the repair complete? |
Go to Step 9 | - |
| 7 | Inspect for poor connections at the seat module. Refer to TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
and CONNECTOR REPAIRS
in Wiring Systems. Did you find and correct the condition? |
Go to Step 9 | Go to Step 8 |
| 8 | Replace the seat module. Refer to Memory Seat Control Module Replacement . Is the repair complete? |
Go to Step 9 | - |
| 9 |
|
Go to Step 2 | System OK |