Diagnostic Fault Information
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DTC B3920 or B3921
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Driver Seat Front Vertical Motor Down Control | B3920 02 | 1 | B3920 01 | - |
| Driver Seat Front Vertical Motor Up Control | B3920 02 | 1 | B3920 01 | - |
| Driver Seat Rear Vertical Motor Down Control | B3920 02 | 1 | B3920 01 | - |
| Driver Seat Rear Vertical Motor Up Control | B3920 02 | 1 | B3920 01 | - |
| Driver Seat Horizontal Motor Forward Control | B3920 02 | 1 | B3920 01 | - |
| Driver Seat Horizontal Motor Rearward Control | B3920 02 | 1 | B3920 01 | - |
| Driver Seat Recline Motor Forward Control | B3920 02 | 1 | B3920 01 | - |
| Driver Seat Recline Motor Rearward Control | B3920 02 | 1 | B3920 01 | - |
| Driver Seat Lumbar Motor Down Control | B3920 02 | 1 | B3920 01 | - |
| Driver Seat Lumbar Motor Forward Control | B3920 02 | 1 | B3920 01 | - |
| Driver Seat Lumbar Motor Up Control | B3920 02 | 1 | B3920 01 | - |
| Driver Seat Lumbar Motor Rearward Control | B3920 02 | 1 | B3920 01 | - |
| Adjustable Pedal Motor Forward Down Control | B3920 02 | 1 | B3920 01 | - |
| Adjustable Pedal Motor Rearward Control | B3920 02 | 1 | B3920 01 | - |
| 1. Power seat motor inoperative | ||||