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.
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
DTC B0248, B0268, B0408, B0413, B0418, B0423, B0428, B0433, B3531, B3761, B3773, or B3782
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Recirculation Door Control A Circuit | B0268 61 | B0268 61 | - | - |
| Recirculation Door Control B Circuit | B0268 61 | B0268 61 | - | - |
| Recirculation Door Position Signal | B0268 61 | B3773 06 | B0268 61 B3773 06 | - |
| Recirculation 5-Volt Reference Circuit | B0248 61 B0408 61 B0418 61 B0268 61 B3531 61 B0428 61 | B3773 06 | B0268 61 B3773 06 | - |
| Recirculation Low Reference Circuit | - | B0268 61 | - | - |
| Driver Air Temperature Door Control A Circuit | B0408 61 | B0408 61 | - | - |
| Driver Air Temperature Door Control B Circuit | B0408 61 | B0408 61 | - | - |
| Driver Air Temperature Door Position Signal | B0408 61 | B0413 06 | B0408 61 B0413 06 | - |
| Driver Air Temperature 5-Volt Reference Circuit | B0248 61 B0408 61 B0418 61 B0268 61 B3531 61 B0428 61 | B0413 06 | B0408 61 B0413 06 | - |
| Driver Air Temperature Low Reference Circuit | - | B0408 61 | - | - |
| Passenger Air Temperature Door Control A Circuit | B0418 61 | B0418 61 | - | - |
| Passenger Air Temperature Door Control B Circuit | B0418 61 | B0418 61 | - | - |
| Passenger Air Temperature Door Position Signal | B0418 61 | B0268 61 B0423 06 | B0418 61 | - |
| Passenger Air Temperature 5-Volt Reference Circuit | B0248 61 B0408 61 B0418 61 B0268 61 B3531 61 B0428 61 | B0418 61 | B0268 61 B0423 06 | - |
| Passenger Air Temperature Low Reference Circuit | - | B0418 61 | - | - |
| Mode Door Control A Circuit | B0248 61 | B0248 61 | - | - |
| Mode Door Control B Circuit | B0248 61 | B0248 61 | - | - |
| Mode Door Position Signal | B0248 61 | B0248 61 B3761 06 | B0248 61 B3761 06 | - |
| Mode 5-Volt Reference Circuit | B0248 61 B0408 61 B0418 61 B0268 61 B3531 61 B0428 61 | B0248 61 | B0248 61 B3761 06 | - |
| Mode Low Reference Circuit | - | B0248 61 | - | - |
| Auxiliary Air Temperature Door Control A Circuit | B0428 61 | B0428 61 | - | - |
| Auxiliary Air Temperature Door Control B Circuit | B0428 61 | B0428 61 | - | - |
| Auxiliary Air Temperature Door Position Signal | B0428 61 | B0428 61 B0433 06 | B0428 61 B0433 06 | - |
| Auxiliary Air Temperature 5-Volt Reference Circuit | B0248 61 B0408 61 B0418 61 B0268 61 B3531 61 B0428 61 | B0428 61 | B0428 61 B0433 06 | - |
| Auxiliary Air Temperature Low Reference Circuit | - | B0428 61 | - | - |
| Auxiliary Mode Door Control A Circuit | B3531 61 | B3531 61 | - | - |
| Auxiliary Mode Door Control B Circuit | B3531 61 | B3531 61 | - | - |
| Auxiliary Mode Door Position Signal | B3531 61 | B3531 61 B3782 61 | B3531 61 B3782 61 | - |
| Auxiliary Mode 5-Volt Reference Circuit | B0248 61 B0408 61 B0418 61 B0268 61 B3531 61 B0428 61 | B3531 61 | B3531 61 B3782 61 | - |
| Auxiliary Mode Low Reference Circuit | - | B3531 61 | - | - |