Note on Intermittents
WARNING: This page is about a different car, the 1990 Cadillac Fleetwood and 1990 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
This code can be caused by an open, short to ground or short to voltage on circuit No. 472 and/or 469, an open or short in sensor connector, engine-to-dash connector or ECM connector. If no problems are found in wiring or connectors, substitute a known good sensor and retest.