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 P0451, P0452, P0453, or P0454
| Circuit | Short to Ground | High Resistance | Open | Short to Voltage | Signal Performance |
|---|---|---|---|---|---|
| FTP Sensor Low Reference | - | P0446, P0451 | P0446, P0463, P2068 | - | P0451 |
| FTP Sensor Signal | P0452 | - | P0452 | P0453 | P0451, P0454 |
| FTP Sensor 5-Volt Reference | P0452, P0522, P0532, P0641, P1183, P2228 | P0451 | P0446, P0452 | P0453, P0530, P0641 | - |