Diagnostic Fault Information
WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0443 or P0449
| Circuit | Short to Ground | High Resistance | Open | Short to Voltage | Signal Performance |
|---|---|---|---|---|---|
| Ignition 1 Voltage - Purge Supply | P0443 | P0443 | P0443 | - | - |
| Battery Positive - Vent Supply | P0449 | P0449 | P0449 | - | - |
| EVAP Purge Solenoid Control | P0443 | P0443 | P0443 | P0443 | - |
| EVAP Vent Solenoid Control | P0449 | P0449 | P0449 | P0449 | - |