Circuit Description
WARNING: This page is about a different car, the 1996 Cadillac Seville, 1996 Cadillac Eldorado, and 1996 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
This test checks for camshaft pulses not received when 4X reference pulses are being received. This indicates that a camshaft sensor circuit failure and DTC will set.