Diagnostic Fault Information
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
Always perform the Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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 | - | P0451 |
| FTP Sensor Signal | P0452 | - | P0452 | P0453 | P0451, P0454 |
| FTP Sensor 5-Volt Reference | P0452, P0530, P0641 | P0451 | P0446, P0453 | P0453, P0530, P0641 | - |